Chess Calculation Workshop | Viktor Neustroev | Skillshare

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Taught by industry leaders & working professionals
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Lessons in This Class

12 Lessons (2h 6m)
    • 1. Chess Calculation Workshop

    • 2. Chapter 1. Introduction.

    • 3. Chapter 2. Mistakes in Calculation. Unforeseen Check

    • 4. Chapter 3. Mistakes in Calculation. Overestimation of Prospects of Position

    • 5. Chapter 4. Mistakes in Calculation. Declined Sacrifice.

    • 6. Chapter 5. Look for Enemy Threats First (Elo~1100-1500)

    • 7. Chapter 6. Back-rank Weakness (Elo~1000-1400)

    • 8. Chapter 7. Last Chance to Save the Game (Elo~1200-1600)

    • 9. Chapter 8. Passed Pawn Helps the Attack (Elo~1300-1700)

    • 10. Chapter 9. Join All Your Pieces Into the Attack (Elo~1400-1800)

    • 11. Chapter 10. Distract the King (Elo~1300-1700)

    • 12. Chapter 11. Applying Calculation Skills. Paul Keres - William Winter

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About This Class

Welcome to the Chess Calculation Workshop where you will learn how to calculate lines and combinations in your chess games properly. My name is Viktor Neustroev, I’m a FIDE Master and a chess coach. Currently I am focusing on teaching chess online and offline. I have already brought up many students who became prize winners of the championships of their towns and countries. However, I teach chess not only because of trophies, I like to make people's lives better - help them analyze it better and make better decisions.

I designed this course for any chess player who struggles with calculation or just would like to improve his ability to calculate better and deeper and visualize the position properly after that. By the end of the course, you will be able to calculate the line 2-3 moves deeper, picture that position in your mind and evaluate it!

Thank you for your interest in my course: “Chess Calculation Workshop with FM Viktor Neustroev”. Feel free to take a look at the course description and I look forward to see you there.

What exactly do I teach in this course? I explain typical mistakes in calculation, provide you with exercises to improve and we do them together, where I explain which moves-candidates to be looking for and demonstrate a step-by-step calculation process. That’s why I called it a workshop.

The ideal student for this course is a chess player who desires to improve his ability to calculate the lines and visualize positions better. However, don’t worry, there is no requirement needed to enroll into this course. You just have to be open-minded and ready to learn!


Meet Your Teacher

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Viktor Neustroev

​Chess coach & entrepreneur


My name is Viktor Neustroev and I am a chess coach and a trader.

Experienced chess coach specializing in tactics and openings.

The coach of the champion of Siberia among girls under 9!

I'm 34. I live in Russia, Novosibirsk. I learned to play chess when I was 5. I regularly won prizes at Novosibirsk region Championship and Siberia Chess Championship among juniors. I'm a champion of Novosibirsk City Chess Club at 2002.

I got Master's Degree in Economics at Novosibirsk State University and also played for its chess team.

Today I am focusing on teaching chess online and offline. The reason why I do this is because I feel happy when see how my students achieve success.

I will teach you how to find tactical strikes in certain position types and h... See full profile

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1. Chess Calculation Workshop: Welcome to the chest calculation workshop, where you will learn how to calculate lines and combinations in your chess games properly. My name is Victoria. I'm a feeder master and the chess coach. Currently, I'm focusing on teaching chess online and offline. I have already brought up many students who became Prize winners of their championships, of their towns and countries. However, I teach chess not only because of trophies. I like to make people's lives better, help them analyze it better, and make better decisions. I designed this course for any chess player who struggles with calculation or just would like to improve his ability to calculate better and deeper and visualize the position properly. After that, by the end of the course, you will be able to calculate the lines to three moves. Deeper. Picture that position in your mind and evaluate what exactly do I teach in this course? I explain typical mistakes and calculation. I provided with the exercises to improve. And we do them together where I explained which moves candidates to be looking for and demonstrate a step-by-step calculation process. That's why I call it a workshop. The ideal student for this course is a chess player who desires to improve his ability to calculate and visualize positions better. However, don't worry, there is no requirement needed to enroll. You just have to be open-minded and ready to learn. Thank you for your interest in my course. Chess calculation workshop with video master victorious drove. Feel free to take a look at the course description. And I look forward to see you. There. 2. Chapter 1. Introduction.: Hello and welcome to my chest calculation workshop. My name is Victoria destroy. If I am a feeder master and the coach. And in this video, I will tell you what this course is about, what exactly you will learn and how I organized our learning process. First of all, I tried to make these scores interactive. So I'm not only explaining, but also asking you to suggest the moves, post the videos, and calculate the lines yourself first, and only then continue watching my explanation. When speaking about calculation in chess. I believe the only way to improve it is to train a lot. That's why I'm sure that just watching these readers may help you a little bit. But if we do the exercises together, you will not only learn the technique of calculation, but also practice it yourself. This is how you can become a better chess player. This way of learning works more effectively. I've tasted it together with my private students and proven it. And the first section of the course, I explain typical mistakes that chess players making their games so that your task is to remember them and double-check yourself every time you calculate a long line. The second section can see stuff, the positions taken from real games where your task is to find moves, candidates for you choose the most promising and calculate it. And of course, you should expect more than one response from your opponent. Calculating all juggle responses is the key to success and chess game. Some positions are simple, some others are complicated. If you feel that this line is too complicated for your just skip and get back to it later. Moreover, I pointed the level of each position in the title. In the third section of the course, we analyzed not about games played by grandmasters. And again, at a certain moment of the game, I ask you to pause the reader and to calculate the lines yourself. This format is very common and effective for face-to-face lessons in chess schools. Calculating lines within a chess game teaches you to be able to look for combinations when you play your own games. Finally, I also prepared homework for you so you can train yourself without any help from my side. If you follow my instructions and at least try to complete all these exercises yourself first, and then compare your solutions to what I suggested in the winter. You will definitely improve your ability to calculate and visualize properly. And of course, will improve your chest performance. Because calculation is a part and parcel of chess. Thank you for your attention and see you inside the course. I'm sure you'll enjoy it. 3. Chapter 2. Mistakes in Calculation. Unforeseen Check: Hello everyone. This has filled a master victorious through F. And this is the first lecture of my course devoted to calculation skills. And this first lecture we're going to talk about mistakes and calculation that you may make and which I want you to avoid in your future games. So that's why we are, I'm going to explain them. You will learn and every time when you calculate a combination or just one line, you make sure that everything is properly and you are not making such a mistake. I tried to make this course interactive. I am going to ask questions and tried to answer yourself. So when I'm asking and saying that you should pause the video and try to find the solution yourself, please do it. It's quite important for your future progress and for your ability to calculate the lines properly. Tried to think yourself. And after that, please watch my explanation and the correct answer. Okay. So this is the first type of the mistakes. The name is unforeseen check. A black plate, a rook, B6, and disposition. There is something that they had in mind with such him of what do you think? What did they have in mind with Ruby 60? They just want to trade routes. Or maybe there was a certain idea behind this wave. Of course, trillion rooks isn't black forever because whites, rooks are more active. And oxy seven is not a problem just through G6 and black trays the other OK pair and simplifies the position. And finally, equality is it? Okay, please pause this video and trade to realize what was the idea behind rubisco TechSmith. Okay, I'm sure you found. But if not, please look at the screen. The idea was that this rook is protected only with the night. That's why if white captures the Night, King takes and what can successfully take the rook looks quite attractive for white, but actually, this is a trap. In this position. After white captures on B6, blood can simply clicking C7 to drag the Lucan B6. I'll show you on the world. So for example, if white laser or D7, Kinsey seven, ruby six, King C7, the rookies strapped. White has to sacrifice this route for report for the E6 bone. And then basilicas is a winning. That was the idea to get the rook trapped after of the seven and the rook takes B6. However, there was something that black missed in this combination. That was an unforeseen check. So again, please pause this video and try to find what black missed. How wide can improve this combination to be able to get a better or a winning position. Maybe with the extra material. Okay? I think you had enough time to find it. The idea is not only to take on B6, but fused to protect the broken C6. And white can successfully do it with an intermediate check group, do seven kings, seven. And finally, night to E5. Checking the king. At the same time. Protecting the rook. After these check the king festival retreat and can protect the broken B6. King is seven, rook takes B6 and white is winning because of an extra night. Okay? I think you got it. So the idea of Ruby six could be good because it attracted white to play rock D7, but unfortunately, black overlook an intermediate check, 95. This is what can happen very often, especially if the king is close to the place of action. Okay, Fine. Thank you for your attention. We will continue in the next video or with another type of mistakes and calculation. 4. Chapter 3. Mistakes in Calculation. Overestimation of Prospects of Position: Hello again. This is fit a master. We introduced roof and we are talking about mistakes in calculations and the fuel type of the mistakes is overestimation of the prospects of a position. In this position, you can realize that so why it has one extra porn and good chances to succeed. However, the poem only four might be hanging. And black, of course, understands that they can take. And this is what bled played on the next move. But that was a mistake because black overlooked the prospects of these position for white. What do you think white can do right now to take the advantage of these move? You may pause this video and try to find the solution yourself. Okay? I hope you found the solution. How to get a better or a winning position. And you found them. Well, first of all, let me tell you that something like a rock A1 doesn't work. If Rookie one there is no need to play Bishop A6, A6, because if Rookie six, we can display Misha B7 and the fluke E5, we play bishops U6 taken advantage of the beam. However, you may ask me why after Bishop B7, they play A5 but not B6, okay, if it would be six, then white moves his bishop to D5, deliver in a check to the king, after which the bishop on A4 is Hanken. Okay, maybe it's too difficult, but I want you to calculate everything in your mind. Try to picture these moves, visualize the position and only after that make the moves on the world. However, after I suggested this line, let me show it on the board for you to make sure that everything is exactly like I said. So arrow K1, K6, Bishop be seven, and the five are just bishops. 26. Black has to give up the exchange they take and sacrifice the rock. Then maybe one of these two points. If instead we'll have tries to counter attack, then of course there is a intermediate Chebyshev D5 King moves forward, the position is completely willing. But if only white police rookie one, black has a rock D1 move. Trading the rooks, after which the position is equal. It's a minor piece and Game and the number of pounds is equal. Maybe white pieces look a little bit active, but the black has a distant past born. It should be drawn. So what to play instead of rookie one? What do you think? Okay, if you still would like to find the best move in this position, you may pause the video. If not, let's continue. So here first we have to play Bishop D5, as in intermediate check. Kink moves and after that we play rookie one. If they move the bishop, they just blunder the formula is seven, which is in our favor. That's why they have the player Rookie A6. Now b should be seven will be a bad move. If only we have labels should be seven. They can play rock B6 and taken our bishop and then we can to retreat with the bishop. And at the same time delivery check. We have to either move with or to take on A4 and give up our bishop, after which the position will be equal. I'll show you on the board. So a rock D5, King afraid, rule K1, K6, and Bishop B7 doesn't work. So if you place it should, we'll just look B6 we may take, but we lose our own bishop. However, after Bishop D5, Kinga freight and r2 k1 glucose-6, we have a better myth. What these movies, it's rook a2. Who can tell me what's the idea of rookie tool? This is a brilliant move that almost wins the game. Why? Because now, but can't get rid of this piece of the spin. The bishop B5 move is unavailable. Every time we should be five is played, white can capture on B5 and the record a2 will be protected with our bishop on D5. And because we should be five isn't available. Black has to stay on the a file with two pieces while we can move the king to the centroid, improve our position and try to create a postpone. Okay, I will show you a bishop defined first, kinda fade a rook A1. Now Brooke A6 and drew K2. So you see Bishop B5 doesn't work. Our AAC is protected. What they should do, probably G4, which allows us to play with the king, then play E four, F four, and so on and created postpone. Of course, not the position is strategical winning, but white has to play several exact moves. Okay? So here when bishop A4 was played, black idea was to gain the material back and then somehow unpin from the one-on-one. But they didn't realise that it's so difficult and they have to stay on that on the a file to keep the bishop protected. They just overlook the prospect for white to play rock a2, so that the rock will be protected by the bishop and there is no way to unpeel. Okay, Fine. Thank you for your attention. We will continue in the next video with the next type of mistakes. 5. Chapter 4. Mistakes in Calculation. Declined Sacrifice.: Hello everyone. This is fit a master mix, the new strophe. So we are continuing talking about mistakes and calculation. And this is mistake number six, which is called declined sacrifice. When you sacrifice something, usually you accept your appointment to capture that sacrifice. But it's not obligatory. If this is not a force in move, then they can play something else. And this is what you definitely can overlook during the game, especially if you are low on time. Okay, So in this position, Black played. Define who is the intention that same visual, G7, K27, CTX, D5. They sacrifice the night on a four. Gtx. F4 queen takes four kings, one, after which the position is unclear. Black sacrifice the Lord, but maybe they will obtain some counter play. I'm not sure. At least it looks dangerous Hawaii. What do you think they missed? So you may pause this video and try to find what may happen after D5, D5 and 1900 for what a white can improve and this combination to be able to get a winning position. Fine. I'm going to show I'm sure you'll find the answer, but if not, please pay more attention. This is the case where the sacrifice shouldn't be obligatory taken. If there is a better move or a safer move that leads to small but stable advantage, you'd better go through this line and avoid complications. Okay, so D5 and D6, D5 night takes E4. If g takes a fork when a foreign checking each one and then maybe Niger three or something like that block is fine, but D5, D5, night, it takes F4. However way this x D 565, we should capture, yeah, we should capture on G7 funerals King G7. Why we should capture, uh, first of all, it simplifies. It gives him just a few pieces into the attack. Second, they have to take with the king because if they take wisdom night, then like a four won't work. There will be only one night into their attack. So King takes C, takes D5, night, takes on F4. And in this position, there is no need to capture immediately. White can just simply play neither F1 to secure their king side and be able to join the queen to the defense if needed. Then Black Knight is spins. So there is no need to take on if or right now, you can wait for a better moment. And then again this night, if it has no squares to retreat, that's the point. So the mistake that a black maid at this position was that they thought that white has obligatory to take, which was not true. They can take later because the night on a forest trapped. And the fact that they gained the porn on their foreign didn't do anything. So let me now show on the board D5, Bishop G7, king takes G7, C takes D5. Now night eat takes a four. If g takes up four queens and four English one, the position is quite suspicious. For white. Of course, I believe you'll find difference properly. They can avoid complications and still win the game. But it's too risky, especially when you have a few minutes on the clock. But that's why it's better not to take on F4, but to clean either F1, then take on F4 later you see the night is trapped. The Queen goes to G2 if needed. Here. Why this completely unwilling? Okay, fine. Now I'm going to show you an example of the similar position from my game. Where are these mistake was applied. I was playing with black pieces into Nicea against international master that time I was a candidate master. It was a bleeds game. And actually in that bleeds tournament, I want some money. If I'm not mistaken, it was something about 20 bucks. Oh, actually, I pay the five bucks to participate. So that was a bleeds game. As I said, I had approximately Three minutes on my clock, Mara poignant had me before, and he spent three minutes to decide whether he should sacrifice on F6 or not. So he believed that F6 and what do you think ideal? Of course, I was analyzing this move and was not sure if I can take on F6 if the king is breaches safe or not, but because it was bleeds and because I decided to avoid complications I just immediately played can get shade. After which he lost all chances to succeed and lost the game just in a few months. However, after that, he played a few more mistakes because of low time. So let me show you. Oh, of course, the intention of this move was really good. And if GE board dx, then white can play queen G4, deliver recheck. King moves to H7 to secure the port on each six, but it doesn't work. Just Bishop H6. If my H6, it's going to form. They're threatening with Queen H6 and can deliver a checkmate. However, maybe it's not so bad. What can I do? I can play Bishop takes G2. And if they take on G2, I can simply move the root of the GIF file and then G6 to support on H6. What if he doesn't take on a GTO, but glaze King H2. If so, qualify forks, sacrifice the Queen. Now, rook H6, King G7. And oh, actually it's not sacrifice that might have the Pantone F6. So o queen takes Queen, pawn takes queen, or maybe Bishop B8 as well because the king was on H2, but it's easier to take with the F1. The rook retreats. I also read through it with the bishop and then you can realize that black has extra material, one extra bishop. Too many arrows difficult to imagine. So let me remove them and please calculate night of six GTX F6 line yourself and make sure the position in your mind. So let me quickly repeat it. Night, F6, F6, queen, G4, check. King goes to H7. Bishop H6. Night takes H6. When F4, Bishop takes G2, check king to queen, takes E5 being in the queen on there for a rook takes H6, King G7, quintics, queen, f takes on E5. A rock retreats and our lights called bishop retreats as well. We have an extra rubbish. So even after a night of six, the position was fine, but it required a lot of calculations that I decided to avoid, especially in the bleeds game. What was the better move for widen this position. Let me just quickly one, but after calling the one I take on H4, they take with the queen and queens 25 successfully defend my position. Again, I have an extra material. Okay, let me now show everything. So night F6, six, queen G4, check engage Seven, Bishop H6, 96, H6. And in this position, they could deliver a perpetual check for Queen G4. But if they were playing for a win like that, Then just a rock G2. If now king takes, I can either play a role G8, G6, like I suggested, Oh, Quincy to kinesics. If King goes there, it's only five. Being the queen. Then he takes there, I moved there. He takes now his rookie scandium. That's why he has to read through them. They also read through those divisions, so I have an extra bishop and this position. Let's go back here. If I capture on H6, they can take and force a draw with a perpetual check. Let me show how Like that. What could I do to avoid in this position, instead of taken on H6, I could play Bishop F to a taking the rook. Because of Luke age five, then light H6 works. There is no perpetual check because H foursquare is detected with my mission. I'll show you. The 95 hearer doesn't work. If he does this move, I can play 93 actually, but my DEJ six works as well. And when H4 doesn't work, after Bishop F2, they could play bishop to F eight, then I capture and H4 and the position is completely women. Queen H5 doesn't offer a lot because of King G8. The bishop or scanning and almost no checks and black is winning because of extra material. What happens in the game? I just simply played this MOOC he could to play with the roof because it was under the attack rogue H5, queen A5 threatening with two threads. And then I don't remember what exactly was played on the board, but he made a few mistakes and finally, lost because of a lack of material. So what you may drawn from these positions is that it's not obligatory to take and accept the sacrifice. When European sacrifices, something tried to understand what is the idea behind the sacrifice and what will happen in case if you take, even if you think that it will be fine, maybe you will miss something and still get into trouble. Always try to look for another option. What if you decline the sacrifice and play something else? It could work. Okay. And now I would like to show you one more position. Please look at the position. So here are white blade, the night of seven, they sacrifice the night for report. You may pause the video to try to understand what was their idea behind this MOOC. Hawking. I am sure you found, because they are URI is quite obvious. If rook takes, then rock takes rook one of seven kink thicks, queen captures only six. King has the only square root on their feet. And after look at one black has to block with the night. I lose the night. Gtex F6, and white has extra material. Moreover, blocking is weak. We can continue the game with G6 and then maybe look back to the one threatening with Queen is seven. F7 and Queenie E8 is a real threat. But it's not obligatory to calculate the line to the very end. After night of 700 rook have seven root of seven kings of seven Queen is six, can give weight and the roof one, it's obvious that the black faces with Material losses after night F6, and it's only white who can win there. So that was the idea of night have seven sacrifice. What do you think we can do instead of accepting the sacrifice? Again, if you need, please pause this video and try to find what are the move to play. Don't forget that your rook is hanging on D8. Okay, fine. I'm sure you had enough time. What can be done after a night of seven? You can just simply move the rock to F8. What's the idea of such a move? The year is pretty simple. The night is almost trapped. The oldest square root can escape is E5. But what them? Brook takes F1. Now if Queen or these rook takes on F1, the night only five was lost for nothing. That's why night takes a phone. Then night takes night when tanks night, the queen was distracted. After which blood could continue with Queen of two threatening animate on G2. Please don't forget that the routers can get only one if the queen moves anywhere else. If the rook moves from the first rank, then the light is coming in with a mate. So what do you think black, white should do? The only thing that why it should do and that's position to be able to secure the roof as well as the coupon is to play queen G3, protecting both. But now, after the Queen goes to G3, black has another counter strike, Bishop G2. This move forces the queen to get distracted, and the recording one is hanging. Let me show you. Night takes F7, F8, night E5, the only square root to escape a roof one. Now, if they take with one of the major pieces, if I have 100 handgun, That's why night takes their 1965 and white has to react and take with the queen, otherwise they won't be down. When F2 threatening their 93 doesn't work. It interferes the E file in the rookies Kantian, a rookie to just going F1. So the only move is to play queen G3. These intermediate check doesn't work, just king of salmon. So queen G3. But if Queen G3 is Bishop G2 between gets distracted, queenly one, and the position is completely unwilling. These checks don't work. King successfully goes through G6. Okay? So after a night of 700 wide consider it that blacks should take. That was the main mistake that why did. And of course, there was a way for white to save the position, not to lose it immediately here, or they could have champs to bleed before queen moves G6 to vacate the square on G5. But then Quincy three, and black has extra point to us, better Pieces activity. The position is much better for black, but it still can continue replaying it and maybe can get potentially chances for it wrong. Okay, fine. So here I demonstrated three different positions. And I'm sure that you learn that a sacrifice is not obligatory, should be taken. You can decline the sacrifice and play something else if you believe it's better. So the problem is that when you play the game, you don't analyze this opportunity. You see they sacrifice we should take, this is how our mind works. Just slow down and think about what else you can do and if these sacrifice should be obligatory taken or not. Okay, Thank you for your attention. We will continue in the next lecture. 6. Chapter 5. Look for Enemy Threats First (Elo~1100-1500): Hello once again, This is fit a master Victor new stuff. And we're doing exercises devoted to calculation skills. And I'm sure that after you complete at least one or two, you'll definitely get better and you'll definitely understand how to calculate the lines properly. Okay, please look at this position. How do you evaluate it and what it should do? It's actually there at joined to play. So white move. Of course, wide position is really good. They have two rooks on the seven frank, which are quite active, but at the same time, there is something that the black has in mind and the, for example, white continuous with a four move. Black may implement this idea. What is their idea? What happens in case if white plays a four here? What do you think? Again, you may pause this video and try to find if black gets any countably after a four or even after any other places move. Okay. I'm sure you've found it because it's not so difficult as it was, for example, in the previous two lectures. Here It's going G3. A queen sacrifice. If declines, if I declines the sacrifice vendor with D1 leads to him it, how would you, when they have white accepts the sacrifice? Then f takes G3 check King goes to the first rank and the rock D1 leads to a checkmate. Now we see the main problem is that black is threatening whisk when G3, what leads to checkmate? How whatever we want to keep our pieces active, what do you think? Why should do to be able to prevent a checkmate with Queen G3 and at the same time create a threat for black. You may again pause this video and try to find the answer yourself. Okay? I think you've found at least you could. If not, I'll definitely explain. Well, first of all, the problem is that the background is quite weak here. So we should somehow defended, of course, we will play something slowly Queens you want, but it's too slow for this exact position. What else we can do? A rook, G7, and other move candidate after which we trade two rooks for Quinlan porn. But after that, I will say that position is approximately equal. Two rooks are quite successful when they fight against postpone or support their own postpone. Making is weak, but actually the best thing that we can get is ever just a perpetual check. So rugae seven doesn't work. Well. Queen their fate. The move that creates a thread and at the same time prevents a background made. Why? For example, if Gwyneth weight and then they Blake when G3 weekday can J3 with our porn they take was the porn check again goes to G1 neuroglia one and it's not a maid because the file is already open and we can just play queen to F1 block in it. Of course, they capture our queen, but they will lose a rook in such a case and white will be completely winning. That's why we know that after Queen afraid Quincy three doesn't work. Let's look at what moves candidates. Bullock and play after Queen their fate. Not one of them was when G3 it didn't work. What else? Because whisk when F8, we actually created the threat of taken on G7. What leads to a checkmate? How to defend? The only other thing they can do is Iraq G3 move. And if we capture, then we may lose the game. So when if a drug G3, how to continue? What do you think? Again, you may pause this video and try to calculate all lines there. Okay, let me continue. Well, the first thing that comes to your mind, I'm sure is G7. Rook takes G7 check, going faster, take of course What them. Then you can continue with a check on F5. Queen delivers a check on a five, and black has two options. Move the king to the background or block with their rook. For example, if they block with the rook, we of course capture the queen. Because the rock is now pinned, the king only can take, so King thanks G7. But after working, just sell one, we realized that both the king and the default look allocated on the same diagonal. So quantifier just gains a rook and we are going to play the endgame of Queen versus rook. And because we have the edge but bone, we of course, can successfully finish the game. What if, instead of blocking these check Gwyneth five, check my lead me. Just repeat the queen F8 and rock G3. A rook takes G7, going, thanks, G7, queen or five. If instead they move the kings to the back rank. There is no big difference between G8 and H8. G8, I believe is better. Outlook aid check. Oh, actually G8 was a mistake after Rookie. They have to give up the queen with when the freight move. So that's why instead of King G8, its kinda cheat. However, we still play a rookie a check they block with the Queen. And then again, we realized that King and the rook out on the same diagonal. That's why we Delivery check with our work when on F6 fused and on the next move, regardless of what he does, we capture the queen. They take our AAC, but we take on D4. And again, going versus rook was bonds. So the position is completely winning. Okay? File so let me show you. Go innovate, threatening to take on G7. They play a look, G3. If f takes G3, it's a checkmate of course. But rook takes G7 works. Wind takes G7 has to be played. Then these check, he can move the king or playroom G6. If root G6 we take there was a check. The 2k is pinned, only licking can take and then Queen E5 fork, after which we capture on deform. If King good shape, then look to the background, they have to block. And again, we realized that these two pieces are on the same diagonal. Going F6, they either move the king or block. Was there a rock? May be moving the king is better. Then take the queen. They capture, maybe with this rule because it was hanging. And then we capture there. So the position is completely wing. Okay. I think it was easier for you. The next one is easier as well. If you are, you're able to calculate this line yourself, then you are definitely improving. Thank you for your attention. We will continue in the next lecture. 7. Chapter 6. Back-rank Weakness (Elo~1000-1400): Hello again, This is fit a master of each and your straw. If we're doing simple exercises and trying to improve our ability to calculate the lines properly as well as to visualize the position. Please look at the diagram and tell me what black should do. It's there. Don't move. Let's first to realize our problems. So you can see it is handgun and we are down in minor appears. However, the main benefit for black and this position is that the enemy King is weak. And we have a strong porn on E3. So and as for white, their main problem is and development. So which move to play? I think here the answer is obvious. Of course, you can just move the root to a different place, but this is how you allow your appointment to Castle on the next move after which there will be no compensation for the bishop that we lost before. That's why we should be looking for aggressive moves. And in this position, such a move is a check. Queen to S3. Kinga find is they want to move when D2 is a blunder. Then we Blake windy too. What's the idea of going to move with such a move, we would like them to take so that it's easier for us to promote the poem. If, for example, they take on T2, we capture with the poem. And almost nobody can stop this born. Only these rook can do it. That's why the king has to move to after or G2 doesn't really matter. Maybe G2 is better. And then just Roxy one. If they take, we take and promote. If not, then we take ourselves on H1 or G11 doesn't really matter. And then promote, for example, D6 we capture on each one. And if D7 we just promote. And with the queen on the one, we of course, able to stop the deportation of white. So Quincy three king of one queen G2, and we calculated a queen takes d2 line. However, he has another option. He can move the king to G2 to be able to protect the queen was the rook. So now it doesn't make sense to capture the enemy queen because this is how he joins the Queen's to keep, joins his age, rock to the place of action. What do you think we should do in case if white plays kings to G2? Please pause this video and try to find the solution. Okay, I'm sure you found it doesn't make sense to take the queen and at the same time we shouldn't be planed slowly moves. That's why Roxy one is definitely what we should analyze. A rook C1. And what happens then if quintics D2 then point x d2. And then we reached the position that we already analyzed before. If, for example, queen takes rook, then we realize that the enemy King is weak. We can capture on the two, forcing them, forcing the king to go to G1. And now these born helps us to checkmate going after was it checkmate? So it's actually not so difficult. And I believe to find these combination you need less than five minutes. Now, let me show everything on the board. Quincy three, check. If one, when D2, now, if they take on D2, we are threatening to promote king goes there or after, it doesn't really matter. Roxy one. And there is nothing they can do. For example, the six, we take the seven, but d1 equals queen. And we stopped the G8. Of course, the play G8 we capture with the queen. They took, they take our rock, but the position is completely winning anyway. What if in this position he plays King G2 first, then definitely these move. And if queens E2, it takes the two just a different more water. And we promote the porn. However, if they capture, fair? Then when the two leads to a checkmate like that, is there anything that we can analyze? Actually know if something else we still play or oxy one for example, cleaner one, we're going to either play or oxy one immediately or trade the Queensland player oxy one after that. Okay, fine. So it wasn't so difficult here are your task was to calculate only in four moves. And I realized that after Quincy three, Quincy to white has only two options to capture. They have yet to capture all the blinking G2 and then capture on C1 Black Crook. Okay, I'm sure you did this exercise successfully. Keep doing it, work on puzzles, and this is how you get improved. Thank you for your attention. We will continue in the next. 8. Chapter 7. Last Chance to Save the Game (Elo~1200-1600): Hello everyone again. This is for the master Victor new steroid. As I promised in this video for your task will be to find the draw for black. So please pause this video and try to find the solution yourself. You can spend up to ten minutes for this position. Okay, Anyway, let's continue on. What I want you to understand. Yes, it's black. The move and blacks task was to make a draw. What kind of draw blech can reach. It can be a perpetual check. A stalemate or book can somehow again the rook way before the night or just look for Free and just to go allies. So that white will be happy to agree for a drawer. What do you think in this position? Blood should do? Which moved to start first. However, before we can the first move, I want you to understand that black has just a few balls which are already stalemated. The king has only one square to move, which is H5. Currently it can go to G7. But if there is no night and then the G C1 will be attacked with the rook and still unaware level. So stalemate is one of their possible options. Yeah, we should start with a check, otherwise we get checkmated and the checks here, OK, when F1 and Quinn H1. So when each one leaves a white with just a few options, first of all, if King goes to G3, we may continue with Queen to G1 check. And after when G1 check, they have to repeat the position, move the king to h3. We play quick when h one again and so on. Because if not, if they, for example, move the king to f 4. After we manage to, we check the king and after King mostly just simply capture the queen on G6 and win the game because of it. So Queen each one, king G3, we know how to draw the game with just going G1 move. What if instead of moving the king to G3, he blocks was the queen? The answer is easy. Take the porn with a check, going blocks on G3 and then capture the rook. And then why it has to deliver in perpetual chat, maybe it was three and queen is seven. That's why the best option for weight after Queen each one check is to go to G4. But in such a case, we may continue how? It's definitely not going G2. If only we place that you move the block with the queen on G3. And that's it. Remember, are what now our king doesn't get the age five square and we should be looking for a stalemate. So we should be looking for the way or how. Get rid of our pieces, night and queen. Can we deliver another check and sacrifice the night? Yes, sure, it's 95 move. And now they have to take with the porn because if not, if for example, king goes to a four Gwyneth reason meet. If instead King goes to G3, then blood can still check me, but it takes more moves. Quintics, F3, king to H2, night, G4, check King g1, f2 check King Xuan. So the king is in the corner and we define as a checkmate. That's why in that line, they can't move the king. They have to take with the porn. After they took was the poor. We have only one piece that can move. It's the queen. So at the same time, we shouldn't forced the king to move far away from age five. Otherwise, our king gets it. Sport on H5. Let's just sacrifice liquid on H4. Black, white king has to take, and then this is a stalemate. Okay, fine. Let me show everything on the board. However, I think it's not so complicated and you're able to picture a deposition and your mind. So queen, which one is the first move? Them if these we continue chicken him. If he goes to a foreign scrimmage to gain in between. That's why here he goes back and we just repeat the position. If we manage to, they blonde or the rook. And then they have to play and deliver a perpetual check if it's possible. If here it can goes to G4, which is the best move. We can't play this move, Quinn G2, then Queen G3, and that's it. But our pieces are still meet it. We just need to get rid of these two. That's why 1905 chick. And here, they can't move the king. If King GF, for Gwyneth remained. If King G3, it's still a mate. Like that. However, after it detects the fire, which is the most logical move, guage for Kinko's no squares but has to take. And now all our pieces are stalemated. The king can't move, the F born is binned, and the age born is blocked with our own king. This is how we can make a draw from the position that was looking almost delusion by the first glance. Okay. Thank you for your attention. We will continue in the next video where I'm going to demonstrate another opposition full of pieces, where your task will be at least to equalize. 9. Chapter 8. Passed Pawn Helps the Attack (Elo~1300-1700): Hello again. This is fit a master Victorial steroid off. You know, we're talking about calculations. And when you calculate the line, you can imagine it as a tree. It may contain a lot of moves, candidates and secondary reliance. And in such a case, this kind of a tree, we can call a bush. Or it can be just air. Where a tree with maybe just a few branches. And these puzzle actually is the example of such a bear three, where we have only just a few branches and one, the main one. Okay, so it's white to move. What do you think about the position? White is one-point down, however, they have a strong porn on A6. What do you think? What are our moves candidates and what should be done to promote the IPO. Okay, you may pause this video and try to find the lines yourself. Okay, So here the queen is blocking the point. That's why we should definitely be looking at how to get rid of the screen. The other thing that we may consider is probably something like h4, h5. If for example, we are unable to succeed with a force in line, then h4, h5 we can in the Qing with the intention to get rid of this night and maybe get our night to F5 to change the Queen. But definitely they move that deserves our attention is Bishop O3 in this position. What to expect after a bishop A3? Well, first of all, quintics Bishop, this is the main line. However, or whatever they don't take a take. Of course we don't analyze Quinn B7 because of talking B7, it's just E8 and we promote on the next move. In case of king of seven, we can, for example, capture on F6 and promote on the next MOOC. So bishop or three green B7 is a bad move for, as I already explained, they can play queen EIA, the queen D8. So for example, Queen E8, Quincy seven, check in this position, blacking can move to the back rank or to H6. If it goes to HCI, we continue with bishop or seven night G4. And then after Queen checks on F4, we can just simply capture the night on G4, gain goes back, we capture the night and our bishop only seven is immune. Because if quintics is 7, that's neither 54. Can we gain the queen? Bishop A3, queen eight, Quincy seven. And what if now king goes back to G8? They'll still, bishop is seven, works fine. Now it goes to G54, for example, and going G7, offering a trade and trying to promote the porn after that, if black queen retreats, we probably be 8 or 8. We can just play Bishop D6 and push the palm forward, or bishop D8 and push the palm forward depends on where are the queen moves. So the position is completely wing. After bishop or three, they may also play queen G8, as I suggested. What do you think you should do after Queen G8? Again, this is where you can pause this video and try to find the solution yourself. Okay, Let's continue. After Queen D8, the best thing you can do is to deliver a check on H5. They have to take with the porn are the ways we just captured the night for free. So pawn takes h5, which allows us to Blake when G5 check. And when the king goes to H8, which is the only square, actually, we can just push the palm forward. This is how we break the connection between the queens they did on D8 and the 1906 going moves. They blunder the night after which just Blake Winifred and successfully promote the porn and delivery checkmate. So all these deviations are really in white fever. White wins without any complications. That's why the main move that should be analyzed. These green takes a 3, of course, and this is a bare three. This is the main line that should be analyzed accurately because we sacrifice the bishop. So bishop A3. Queen takes a three, what else can we do? Of course, the euro was to push the porn, but pushing the porn right now is not the best choice. For example, king of seven. If we play seven, just can go so on. And then if we sacrifice the queen for a night and then promote we, we are not gaining any material because we sacrifice the bishop before the other moves that you can try. And this is the moment where you can, again, pause this video and try to find your answer. What to do after Bishop A3 and queen takes Bishop. Okay? I hope you found it. If not, please follow my arrows. Night H5, check. G, takes age five. Queen G5 check, forcing the king to move to either H8 or F8. However, there is no big difference where it'll get the king because on the next move, let's say you, they went to F8. On the next move, white captures on F6 was a check, and King has to go to G8 because if not, if King goes to E8, you have these very nice checkmate with Windows seven and Windows seven. So King goes to G8, how whatever, then you play seven and threatened to promote. Let's just make sure that there is no perpetual check. For example, when C1 king of two. No, we don't Blake when F1 in this position. Because if we break when if one day can just deliver, check on E3 and capture our ISA 1. So Quincy, one can give to Quincy to or maybe going do to King goes to g3. G3, King goes to H for going for King takes the bone on H5. Now, if the bleak winter G6, I'll walk when takes bone takes king takes G6 and we have the E7 that cannot be stopped because our King is shouldering the enemy King. So that was a bad idea. But they may continue with going into check. However, after winning to check, just going back to H4, greener four again and G4. The last check that they can deliver is going to E1. And now we move our working to h5. So our fingers here, the enemy queen is on E1 and there are no more checks. The position is completely winning. There is one more thing for us to calculate. When we believe bishop with REM Queen takes a three NADH five. They may also play King H6, instead of just capturing that one night. And after a night days F6, we again should be sure that there is no perpetual check. Let's check it. Quincy, one can give to Queen D2. King G3. Going takes S3, for example, can gauge for going takes d4. So d4 queen is protected with the night on B3. But in this case, we just play night to G for delivering the check. And then you realize that there's no moves to play with there again, to get rid of this check, they have to sacrifice the Queen for the night. And then of course, what position is completely weaning. Okay? This line is quite long. However, it's easy to calculate because it just has a few branches. Okay, let's now try to picture this move in your mind, and then let's just check it. Make the move on the board. So bishop A3. Now there was a queen B7 line, which is really bad. In this position. Just E7 works. And if King of seven, we can just simply capture on F6 and promote. The other thing we can do after Queen B7 is again night H5 check, which leads to similar positions of night h5. H5, queen goes there, King moves, it doesn't really matter. Our H8 is the only square root of 6. They go there and Denisovan, so same thing. And this line is much better actually. So when can go to E8, Quincy seven, now the king has two options to escape to the background, can to H6. If they go to H6, bishop or seven, Knight has to move. Doesn't really matter where or if he moves there and then it's going to form again in it. Kink moves their queen G4 and the bishop is not hanging because of 1905. Why it has an extra piece. If King goes to G8, instead, bishop or seven knight moves. And queuing discipline offered in the trade. If green B8 or queen eight, it's just Bishop 26, and then we promote the IPO. The main line that we should analyze here is when takes a three, after which we play night H5 check. Now they should take, because if only they play to H6, we can capture on F6 and there is no perpetual check. Finally, after they take, we block with our night and they have to sacrifice the queen. That's why GTEx H5 is the best move. When G5 King, afraid, for example, looking good shade, there is no difference at all. If he goes to V8, then we check made. That's why King goes to G8, E7, Quincy one check, king of to go Institute check King G3. When the free checking gauge for, for example, in this position, Quinn's U6 doesn't work, just queen takes the queen and then we promote. So queen D3 can gauge for queen a foreign king takes H5. And here are cringy six is a mistake. This is where we shoulder than the mixing and promote on the next MOOC. However, they may continue with going into butt engage four query for and G4. They want the checklist when they won, after which were plaguing H5. And black has to resign because of no more checks. And queen afraid as a strong threat as well as E8. Okay, fine. So that line contains of 12th moves. What was easier to picture because of just a few pieces on the word and because it didn't have a lot of branches. Thank you for your attention. We will continue in the next video. 10. Chapter 9. Join All Your Pieces Into the Attack (Elo~1400-1800): Hello everyone. This is feed the monster written news through if we continue with training calculation skills, another exercise, and I think you, we'll enjoy these one. It's not as complicated as some of our previous positions. And I think here you will definitely can come up with your first move yourself without any help from my side. Okay, it's white to move. What do you think? Why should do? Let's look at the position, the end. Now realize what benefits do we have? What is our main parameter? Of course, the answer is obvious. The main problem is that black wants to trade, to trade the queens off. And we would like to keep the queens on the board because the enemy King is weak. At the same time, maybe we can use their king weakness immediately. What moves to analyze? First of all, if we don't find anything forcing any checks or captures or threads, then we should definitely move the queen away, try to keep it on the board. And maybe a text and weaknesses may be quantifier for is a possible move. But before you're analyzing 25, Let's look at something forcing. For example, rook takes F8. Why a rook F8? Because these move allows a black to play only queen F8. And now all his pieces gets to a passive to their PACF positions and we can initiate their tech. How exactly, Let's discuss. So please pause this video and I tried to think how to continue the attack after a rookie fade and queen takes effect. Well, of course the first move that may come to your mind is rookie want to dabble and threatened with Queen you seven, but then he has amazing defend with Queen is seven. So that's why this line doesn't work. What else can we do when we deliver recheck on a four? What can you say about black options? After that? They actually have only two options. They can move the king to D8 or just push the palm forward. Why not kink, E7 and F7? It's easy. Because if King is one, we just played Bishop C5 and capture the queen on the fate. If King FC1, then similar thing but with the rook and capture the enemy going. And then we have Queen plus bishop for two rooks more than enough to win the game. That's why Let's continue whisking D8. So King goes to D8. Now let's join the bishop to the attack Bishop B6. At the same time, we will look at the porn or where it can remove the king egg and E7 is unavailable because of bishops 85 check. So he goes to C8, Quincy for continuing their tag. Now, if King B8, It's a mate on C7. If he goes to G7, what do you think we can do? Of course, we can continue with a rope D1, the oldest square root they can move to you is E8 back and then Gouin goes to a fallback, deliver any check. And black has only two options. E7 and F7 was the king. And then we know what to do in both these cases. Okay? So finally, we came up to the solution that King D8 is a bad move after Queenie for check. So that's why in this position, when the plague we need four. If King D8 loses, then we should analyze B5, B5, and unfortunately we can't capture this point on B5. How to continue? What do you think? Again, I want you to pause this video and try to picture these position, this exact position after B5, and come up with the second move and tried to calculate the line a little bit deeper and realize where you win. So how to play after B5? Yeah, The green is handgun. No more checks can be delivered. That's why let's capture and at the same time create a threat. Queen takes born on the form. What our blacks options in that position? After quinone form, of course, they should move the rook root B8 through G8. And maybe Qing D7 as well, because these move allows the queen to protect the gluconate. If you, for example, say why not to Castle? Which is also possible. I can tell you that it's going to be a mistake. Why? Because you can just play queen aid. If King goes to the D file, then we have rudy one. If King goes to seven. Then we continue with going A7. And after it goes back, just Bishop B6 threatening with a checkmate on C7. So gasoline is not a possible move. Let's start with the roots. Let's start first with the king, king D7. Queen B7. If they don't want to lose the rook, and then the game, they have to go to D6 with their king. But such a move allows us to activate the rook with a temper, ruth D1. The only square root for the king is E5, but after E5 we can just play Bishop D4. And what? Now? If King goes to the D file, we have a discovered intact with our bishop, for example, Bishop G7, and can capture the queen. If the king goes to the F file, then rookie, if one gains the queen as well. That's why this line whisking G7 doesn't work. Okay, once again, look afraid. Quintics of aid. Queenie for check B5 and queen takes a y4. We just analyze these smoking discipline. Let's continue with rock beat. If root B8. Let's deliver another check. Quincy six. Every time we deliver, recheck and the king has to move. Keep in mind that you don't need to analyze Kings seven. Nagging is seven, and neither can get 7 nor king F7. Because in both these cases, you again the queen and that should be enough to win the game. Can get seven bishops, C5 can give seven rook f, one. So after Quincy six, they have to go to d8. But after these move, Bishop G5 and no more moves with the king, they have to sacrifice the queen. So Ruby, it was a mistake. Now root CA, because it prevents us from plain Quincy six. But then we can play queen takes E6, chicken and the taking the drug. So the only way to play is king to G8. But then b should be six check. And again, black is in the trouble. They don't move the king. They can't move the king. They have to play a rook C7 move, after which we join our look to the game. And this is a checkmate. No, of course they can walk with the queen on just six, but then just rook takes D6. The game is our checkmate. Okay? So looks like a rock C8 and drug B8. I have bad news. Once again, a rook takes F8, queen takes F8, going for check B5, queen takes their route. D8 is the most difficult continuation for us. Anyway, we continue with Queensland six, the king has no squares. Now, I told you E7 and F7 our unavailable. They have to blog a rookie 7. What can we do? Let's pile up the pressure on the rook, on D7. What to expect? So they should play with the queen to be able to protect on these seven. Otherwise they just lose the material. How to play with the queen. If King gives going to F7, then we can deliver a chicken C8 for Sandy King to move to E7 and scour the king and breaks the connection between queen and the record G7. So the rule can do someone will be hanging. That's why the only way to play after our move rookie one is to move the green two is okay, Let me just help you. And to help you to picture the position and your mind. Our queen is on C6, our rook is on D1, and EMI pieces. The rook on D7, the queen on the sovereign. The king is only eight. Okay, now I remove the circles. So Queenie seven. What do you think? Should we do them? Again? I want you to picture this position on your mind and find the last move after which they resigned and black resigned. Okay. I am sure you did it because there are several moves that allows. Why do we, but it's definitely not Bishop C5. Why not be justified? Because of true bishops C5 bullet can simply capture on C5 deliver and a check. Of course, the bishop was protected with the Queen and C6. So queen takes, but now the rookies Cancun, and this is how black gets to route versus Queen. So bishops E5 cannot be played. Bishop 25. Maybe button such a case they cancel. And if we take only seven, the first take on D1. And, and actually they take on D1. This is a checkmate because they are rookies on F8. So Bishop 25, unfortunately, it doesn't work. What else? The correct move is bishop to be six. Why? Because we're such a move, we are threatening to play queen C8 and there is nothing they can do. The King has to stay on the eight to protect on G7. For example, if a castle we just kept on G7 for free, they can probably play a look afraid. But then Queen C8, blocking on GA doesn't work. We have too many attackers of the square. That's why the king has to escape. And then just going takes the seven. We trade the queens and leave ourselves with the extra bishop on B6. Okay? What do you think? Too complicated? Maybe, but if you could imagine the position up to the very end, you are definitely progressing. Okay, Let's now make the moves on the board and I'll try to explain everything. So Brooke of eight queens has to take, well, otherwise the queen is just Cancun. Going to fade. Check there. And there are two moves, B5 and King. King is seven is a blunder. Can give seven is a blunder as well. So Kingdom yet is differenced move, which allows us to play bishop to B6. Now, they have to go to C8. Then going C4. If King goes to B8, it's a checkmate in one. That's why they go to D7, allowing us to join the queen to the attack with a temple. And after cuneate, we can just retreat. Now, D8 is unavailable. They have to go here or here and sacrifice the queen. So B5 is the only other move. We can't deliver a check. That's why let's create a threat. The rookies Cancun, these are the squares where the root can move. He can also try to move the king to protect the rock with their queen. But it doesn't work. Queen goes there. Again. If the king goes to the background, they just wander the rope. That's why King goes to D6 and we can join the rook. Now the king goes to E5, which is the only square. And just Bishop D4. What, now, what squares does black half? D6, F5, and F4. And I absolutely assure, you know, what is our next move? If D6, we use a discovery detect maybe this myth or maybe we'll try to check mate with Bishop S3 and then, and before maybe. No, I think actually Bishop G7 is more than enough here. If King goes to their file, it's rookie fun. So actually, king move is a blunder. Let's start with the root B8. Quincy six. King D8 is the only square again. And here a bishop G5, they have to sacrifice the Queen now. Okay? What differentiates governing the square? If so, then kinesics is played with a temper. If now the block we just capture for free. That's why King G8. So we shall be C6, C7, and drop D1 leads to checkmate. They block with the queen, we take it. Maybe it could also make sense to cancel. Let's picture this position in your mind. It's pretty easy. Then grenade check. They can't go to the D file. Otherwise we joined the root to the attack Ruby one. That's why they go to C7. Going A7. Again, kinky sex is a mistake because of Queen B6. And then again, they move the king to the D file and we can join the rook. So they go back. And after B should be six, It's time to resign. It's difficult to protect the C7 square. For example, G7 can be played, but then cuneate is a mate. If something like that. It's fine. We can just deliver a check, which they block with the Queen. And then Quincy six, they have to sacrifice the queen, the game was over. Okay, so rook D8 is the strongest myth. However, still queen C6, Iraq, D7, take the advantage of the pin. Now, what we need seven, because Queen of seven doesn't work. If so, we check and finally take the rook queen, the seven. And in this position, as I told you, Bishop G5 doesn't work, they just cancel. Bishops E5 doesn't work as well because of queen takes Chegg quintics queen, and rook takes the one power ever after Bishop B6, we are threatening with Quincy yet, and there is nothing they can do. If the castle, they just give up the rook. For example, rookie fade, just Quincy aid, the king escapes but the D7 rookies handgun and white is effectively one piece up. Okay. Thank you for your attention. In the next video, I prepared another interesting combination that I believe will be not so difficult as this one. 11. Chapter 10. Distract the King (Elo~1300-1700): My dear just rents this is fit a master recent news story. And to the last video which is devoted to calculation skills and exercises that helps us to improve such skills. So this has actually simple position with a lot of good options for White House error. I want you to find the best one. So white to move. Think about what you can do on the next move. It, you may definitely pause this video or this is what I recommend, please do it and tried to come up with your own solution. These position is not as complicated as our previous lines and previous diagrams here I'm sure you are able to calculate everything. Okay, fine. Let's continue. What are our moves candidates in this position? What can we do? Well, let's look. The king is weak. However, however, there is a queen defendant the position and tuples. So, but we can join our queen. So probably something like that. Niger success take G6 96 and if King G6, coinage five looks quite solid, what else night H5 may be. And if they take, we capture with the Greenland attack. But if my DEJ five can get shade and if we would like to continue the attack, we should sacrifice on G6. H takes you six and they don't see a good move to create a discovery. The deck was the night, maybe they'd have six, but these lines should be well calculation because white to sacrifice is two nights and the root for agreement to pawns. If not, if I'm not missing anything. Okay? Well, and of course the root h seven, this line that requires more calculations because we sacrifice the rook and then we are able only to gain the exchange after one of the nights capture is on G6. So actually, if you get deeper into details, you may realize that brokerage seven is the strongest. These three options? No. Okay. Let's first do these night takes, takes night, the other night takes. It's a fork. I believe the King has to take. If not, then wife has enough compensation. Then Queen age five. King goes to G seven and coinage sexism mate. Looks pretty simple. Okay, what if the king goes not to G7 but to F6? Then when H6 is tailor-made, okay, fine. So it looks like it's amazing every time when the king captures the night. So in this position after we take was the night, they shouldn't take, but today lose their exchange and the king is exposed. So we trade two nights for coupons and the rook and also continue our kings in a deck, which is quite dangerous. So Niger six is likely to work. Let's look of any other options are better. For example, manage five, after which I suggested block the bleak engaging logistics age thing is just six. And they discover it. Check with neither six, forcing electroplating GSM on, after which we may continue with rook H7 and gain the Queen, but we'll lose a lot of our pieces. For example, can capture is F6 broke things is seven. Night they exist seven. And I can't evaluate this position properly. So I would better pre-fill 96. Now, the last option is a rook takes age seven. Let's calculate it. They have to take, otherwise they just lose liquid. And yeah, and maybe get a checkmate because I don't find where the king shouldn't move from F6, then they D5 looks quite strong. King G5 and therefore is a checkmate. So rookie age seven, they have to take them one of our nights captures on G6 and which one? Maybe these how? But I believe there is no big difference. These move attacks both the Greenland drug and the queen should move to be able to protect the rook. Otherwise, we just gained the rollback and we add two points up. Plus we have a strong attack. For example, when D6 or queen D8 or Queenie eight, doesn't matter, we take on air freight. The queen has to take and we may continue. Our wild tech was going H5. What? Now? They can certainly move the king or block was the queen. If they move their king, the game was likely to be over after a few moves. Gouin G6, Chegg, King goes to a change which is the only square, and native seven forces them to sacrifice the Queen for that night. And you already have a lot of extra material, but I believe you can check me in that combination. It's just difficult to find a move after the capture and you capture was the bishop you threaten ways to check mates going H6 and queen G8. So they probably have to play neither F6 and sacrifice that night. Okay, now another line, so King, Thanks, Nate, have G6, P six. Night afraid Gwyneth fate. Now, green H5. And what have they block with their queen on H6? How to continue? You would like to take these queen on H6. But the problem is that these queen is defended by the king. So let's get rid of the king first. And let's play Bishop G8 IV. Bishop captures the, if kinked captures the bishop or king goes to a cheat, they just wander the queen on H6. So they have to play making G7. But in such a case, you will continue with Queen of seven check. King goes to its shape and 96 is the final point in this game. Check. And again, black has to sacrifice their queen on H6. For that night, you capture was the greenland still threatened with a checkmate? Again, a lot of extra material plus a winning position. So wreckage seven actually is the best option. Let's now make the moves on the board for all these three lines. So first of all, night captures night, the next night, night, night, night takes bone. So what then if they don't take you take on F8 plus strong attacked, yes, you have a strong advantage, but I'm not sure if it's the best thing you can do. And as I proved a little cage seven is the best move. Okay, kink G6, then greenish five, and it doesn't matter where he goes when H6 leads to achievement. So this line is clear and it definitely offers huge advantage for white, but not as much as Rakesh seven line as for night H5. Well taken is too risky because of greenish five and the stronger tech and 15 goes to H0, then G6, a fork. So here are they take, now, if they take this as actually, this is what may happen, then go there and you play 96. So if they don't take venue, take on G6, point x and apply discovery. Chegg king goes there and here or maybe seven is the best move. But I'm not sure that's why there's better in this position. Maybe, yeah, maybe white is better. Despite that we have the Queen versus two nights AND rule. I mean the queen, can they be stronger because of kings weakness, moral, or we can play a role Q1 and Q3. But I'm not sure that you've, again, we can find something else which is much better than these position. And yes, such a line exists. It's a rook captures on H7, Gingrich cell. Night after capture is on G6. Queen has to move to be able to protect the rock. You see here. It doesn't matter where we take and they take on their fate was the queen, Queen H5. Now, if King goes there, going G6 can get shade and negative seven, they have to sacrifice the queen. And then maybe you want the night to avoid the checkmate. If they break when H6 and this position, Let's distract the king with such a move. If they take or move to the edge node to the H8 square, we take on H6. If the play King G7, then it's going up seven King did cheat and 96, which forces them to sacrifice the queen. And again, our position is winning. So how to defend? But probably something like that. But if such a move his blade been at least Bishop of seven, and they have to give up the night. So, okay, let me show these. Move. The 90s hanging. If knight moves, it's going g8, the queen, H6. So they probably play some moves and recapture a successfully. I believe it can be on the CheckMate in this position after a few months. But we can just compare or that we have Queen versus night. Net position is completely when. Okay. Thank you for your attention. I hope you could imagine these three lines in your mind. And now I would like to show how masters and grandmasters use their calculation skills in the real game. How do they calculate the lines? We will continue in the next video. 12. Chapter 11. Applying Calculation Skills. Paul Keres - William Winter: Hello everyone. This is fit a master Victor new steroid off. And now I would like to show the game between two grandmasters, Paul Keras and William Winter. That illustrates how calculation skills are important in the game. Maybe you can say that calculation is important when you are only solving puzzles. It's not true. We're solving puzzles to improve our ability to calculate, to be able at a certain moment of the game to calculate the line properly and win the game. Because of these can be Nation and because of our better ability to calculate. For example, we calculated this line deeper and with more secondary lines. Well, our opponent just calculated a few moves and consider that he's fine with it. This is what I say that we calculated our reporting. Okay, fine. So let me illustrate everything with the next example. Paul Carey's was played with white pieces. E4, C5, neither 39, 56. This movie is not common. Usually. Night F6 displayed when the bone is already on S3 and the jury is to play. This strategy works against the lab in variation when the partners here, but in this position, while the knight can get to S3 and the black captures detect S3 and the bishop can be released quite quickly. What offers a battery? A battery development for white? And of course some advantage. E6. So blood decided not to trade 95 eating Z5. And after a D40 black gets two double bonds on the diff file. But they would like to get rid of one of them and play G6. Bishop, G5 was a temper. What now? Bishop, he said one is a logical move, but unfortunately it doesn't work for book. Bishop of seven. For example. Bishop takes me show quintics, Bishop details C5 and then the D5 born is getting going and white will be a pawn up. That's why black here played quantifier check S3. And this position, it was much better for black to continue their development to play nice ES6, or I can show you the line in 1806, it takes D6, Bishop takes you six, detects S5. They capture with the queen. If the capture was the bishop, it's of course, before a fork. So that's why queen captures, for example, Bishop E3, E5. We are able to block and then attack the porn, but these position is still play ball for black and they can probably fight and tried to overtake the initiative, invite place properly. Then of course on the white gets winning Celsus and blood can only fight for it. Robots. At Club layer level, everybody can win here. So that could be a playable position. Instead, why I decided to capture on D for the Euro was that we such a move, they consider it to break the porn chain. What do you think Paul Carey's did? He didn't capture on default with database. If he takes with the night, it's just detailed Z5 and denied becomes the object of the attack. If they take with the queen, it's 96, the queen becomes the arbitrary authority tech. That's why Paul Carey's consider it. The development is much better. He played almost like Paul Murphy, Bishop, d3, c3. And now there is a huge threat of e-discovery check. That's why white castles. Please look at the enemy King, who is still in the center. Looks like now. Whitehead has a huge lead in development and can take the advantage of it. Again, the best move here for black was to develop their pieces. Probably bishop is 696, or something like that. But they decided to take one more Pull. Ruby one, dy, dx E5, 1965. And this is the critical moment of the game. Where are the best thing that blood could do was something like that to cement their position and protect all the witnesses. After which it's not easy to find a clear advantage for white. However, I still believe why it is much better and can just capture on B2B pressure, they're threatened with this move as well as Ruby five, maybe some activity there may be an IDE sacrifice on F7. So a lot of possible moves that should be well calculated. But black played a mistake. Blake played Bishop D6, blundering the forefront of salmon. Now, I would like you to pause this video and to calculate this position. Night of seven. King takes f seven, how to continue? Of course. Black has to take, otherwise it's a fork and they lose the material. So when the king comes to F7, what should we do to be able to succeed in this combination? Pause this video and try to answer this question yourself. Okay, fine. I'm sure you did, or at least you tried. So negative seven King takes f seven and then the next move that we may continue to or is Queen H5 quinoa 3 is another possible option, which also requires calculations. But I think when each five is better, with this move, we prevent Kenji aid. What now? What options do they have? Now the king has several options to move. For example, F8 and E6 is six. F8 and valid move that can be played is G6. I'm not analyzing King G8 because of symptom of 2008, after which at least a white can capture the bishop and C8 and the QALYs deposition materially. And after a queen takes bishop, actually why this third thing was a lot of threats including queen 68. So this removes should be analyzed properly. Which one to start? Let's start with kinky sex. So King goes to E6. What do you think we should do to continue? Here? You may change the king, bishop or five, sacrificing the bishop. The jury is quite simple. They have no other move bots to move the king forward, either to E5 or capture on F5. If they capture on a five, you have your queen on H5 for writing. So just play Bishop D2, deliver a discovery check and capture the queen on five. The position will be completely winning. That's why they can't flicking a five after bishop or five check they shouldn't accept the sacrifice, by the way, King to E5. How to continue them? Of course, as Paul Murphy dot us, dot everybody, every chess player including Paul careers. Here we should join more pieces into their tech. Rook E1, check. King goes to D For the only spot. Bishop with recheck changing it. Then he goes to S3. Move into C4, doesn't make much sense. Well, we can continue with moving the queen to G4, for example. After which we at least capture the bishop and C8, or I believe there will be a lot of making threats after that. Okay. So King goes to S3, go injury for anyway. With such a move would cover the fourth rank. Then 96, for example, to protect the bishop, which is already hanging on C8. And then we can just sacrifice the bishop from E3 to D2. It's a bean. I mean, it's not appealing. It's a check. And if the king moves, actually the king can only take this bishop. King takes the bishop, and then we join the other group to their tech. Kink moves back and then a rook E3 delivers alignment. We cover both the filled rank and the fourth rank. The only other square root which is available is C2. But C2 is covered with the bishop from a five. So if can get six, this is a checkmate. What else? What if, for example, they play King to the plate G6? So we are analyzing night of seven kings of 1785. What if they played G6? If they play G6? And of course, the first move that comes to your mind is Bishop G6, after which they have to take with the born and let us capture the rook. Otherwise, if for example the king most we always have Queen H6. Okay? So H takes G6 quintics H8. So now we are threatening whisk when F6 check. Rookie one maybe, let's say bishop or five, uh, taken our row can be one. Then we continue with Brooke f, E1, letting them take. And if they decide to take, then just going F6, King goes to G8. Rook checks on E8, can gauge seven and the UK checkmate. So taking on V1 is too risky, it's L2 or forcing, force checkmate for black. That's why the best thing they can do is to block the file because after Rookie one we are threatening with squinting yet. So bishop before block in this file how to play them. Okay? If you experience any problems with visualization of this position, just pause this video and try to visualize futurist and then click again play. If you need to rewind, just rewind and watch it again. So bishop before. But rook takes the four. D tau xy for Gouin goes to F6. Check. Now doesn't really matter where he goes. For example, if now king goes to E8, where it may be G8 first, G8, then go into X G6. King, afraid not a change because if King goes to the corner, It's Bishop of six made. So King goes to a fade instead. Then we capture on G6 was our queen, and the position is completely winning. We equalize the number of pieces, plus we have a stronger tech and we can also maybe capture on B7 again the rule or checkmate. So that's why after Queen of sex, moving the king to G8 is a mistake. What if now they moved to E8? If they move to eat aid? We continue with kinesics. King goes to F8 and Bishop H6 is a checkmate. Okay, So actually looks like a G8 was a better place for the king, because kings leads to checkmate in two moves. But we are okay. We solve these 22 lines we cover with both kink to E6 and G6. Now, let's now analyze the last option which is kinda fade, not g it by the fate. What to expect in such a case? How to continue? What do you think? Imagine your poll carriers and tried to suggest your next move. If you pose this feeder or rewind if you need it. Okay, fine. So kinda fate. Let's continue. Of course we reinforce their attack with rook F21. Now they need somehow to cover the ETAs. How can they do that? They can play either Bishop G7 or Queenie for, if, for example, we need for Gouin goes to F3, check. King, has to move through G8, going to 65. Again, kink moves to a fade. Going takes you six, and then we deliver a checking within a few months. If King of seven, we just smooth the route to E7. If King is on the background, then conjugate first, and then we can join the room, or at least capture all the material that they have. Okay, So Queen a4 doesn't work. Let's remove these lines. So the next move to analyze after Kinga faith rookie one is Bishop D7. But after Bishop D7, we may continue with a root lift. This is what Paul Carey's didn't finances game. He played another move, which, which is still okay but allows black to continue replaying this position and maybe fight for a few months more. So rookie three, they're yours to make a root leaf then delivery check from F3. Now what? Broca three is a strong thread, so probably bishop of five. Now rook have three Bishop of six to close the file, but Bishop takes Bishop, poem takes bishop. And greenish six check. Now King goes, doesn't really matter where. Probably to E8 to avoid a check with the next move. Then just going takes F6. And with such a move where threatening with two threads to capture the RUP and to play a route from F3 to E3 which leads to a checkmate. And of course, there is no, any defense that can avoid both problems simultaneously. That's why white is winning. I'm not sure that bulkiness was able to calculate everything properly. Maybe he saw something may be an overlooked. Something. But he definitely realize that neither seven leads to a better position for him. And at least he calculated what happens in case of King goes to E6 and black plays G6. Okay, Let me show everything on the board. Bishop, the six night takes F7, kink, the eggs are seven coinage five. In the game it was kinda afraid. If kinesics then bishop or 5. Now if kink takes bishop is just Bishop D2. That's why can give five. Rook checks. Kinsey foreign bishop with recheck, king goes to S3. Well, if they go to S4, at least we have Quincy for and maybe Bishop CD8 first and then Quincy For we, again the material back plus we have a strong attack. That's why King C3, C4, or restricting the fourth rank. What now? Actually the bishop is king, and so night, C8, a nice U6 protects the bishop and the bishop. D2, they have to take. Now we join the other route to the attack. And after King S3, just deliver a checkpoint with rookie three, both ranks or cover it, as well as C to N, d2 squares. That was kinky sex. What if G6, now, G6, Bishop, G6, they have to take it with a movie King. We continue their tech was this move. Or maybe it was this myth. Which looks slightly better. Okay, pointings, queen takes a cheat. Now the best thing they can do, having in mind that the bishop is Cancun is something like that. But we are RK went to sacrifice the other rule. Now if they take the rook, the game should be over soon. King G8, rookie aid, and the nice checkmate on H8. That's why the best move is to close the file with the room, with the bishop, but it doesn't work. Group takes Bishop, bone takes going up six. If the king goes to E8 with delivery checkmate, like that. If it goes to G8, the position is still in our favor. It's completely winning. What can we do? Probably deliver a check, capture the poem on B7 and then the R2P. Or maybe threaten the CheckMate. It's up to you. It's absolutely winning. You can do anything you want. So G6 doesn't work in the game which was played kinda fade after which a rook FEV1 forced. And if Queenie for which wasn't played in the game, we have Queen of three, king G8, but going G5, King afraid, Quintin six, it's completely wings. So King goes to there. We can continue or a chicken with these moves. And then with a rookie move, that will be checkmate if King goes through F7, then first was the rock, then was the queen. Bishop G7 covering the square slightly better, Yes. What them going of three. This is what bulkier is played in the game. And that was, that move was actually a mistake. There was a quicker way to win. If only white plays a rook leaf, rookie three. What then? This is the strong threat. Almost no defense, so probably bishop or five. But through Guthrie, Bishop of six Bishop things Bishop. Gee, thanks. F6. A look at Greenwich six purist. If can get E7, then 2006 is a check. If what's now we break into one of six on the next move, regardless of what they played, King's still queen of six with a double threat. The rook and the rookie three is a threat that delivers him made. So root 3 and the game could be your butt's going of three was played by Paul carriers, King, G8, and bishop or seven. This MOOC wasn't the best. Actually, for some reason, William Winter took this bishop and a rook takes bishop with a checkmate. However, instead, 1906 could be played. Bishop takes D6. They need to release the rook and to locate the square in the corner for the king. H5, Bishop G6, threatening windscreen of seven, then the root H6, 7 can get shades. And this position is unclear. What looks better, but there are two poles down. However, I believe they able to gain at least 1 immediately, either a B20, h5. So I still believe with would be in the white fever and white would succeed. Now, the only problem is that we can take on D7 right now, our bishop on G6 is canyon. There may be willing winter didn't realize that he has their year of H5 and H6. He just took and then the resigned because there is no defense against the queen of 708. Okay? So this is a very interesting game that illustrates us two things. First, if one side is developed much better, It's a good idea to open the position and immediately take the advantage of a battery development, especially within then we can use in the center. And the second thing, to open up the position. You can sometimes sacrifice a piece. I would prefer to sacrifice upon bots. Sometimes you can't sacrifice it born and open the king. You have to sacrifice something more valuable, probably a minor piece. This is what exactly Paul care is deep, but before doing it, he calculated everything properly. He made only one mistake with one of three. But even after Queen of three, his position was better. Okay, Thank you for your attention. I'm sure now you understand how important calculation skills are in real games, especially when you play was a longer time control. And see you in the next video where I'm going to illustrate another interesting game which allowed both players to calculate a lot.