Questions tagged [analysis]

Questions relating to the objective assessment of a position. The assessment may entail which side has the advantage, or what the best move might be.

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2
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1answer
13 views

Engine vs Engine Database

Does anyone know of engine vs engine databases? Like stockfish vs leela vs komodo pgns for 1000s of games with a lot of time per move? I want data for how draw rate changes as engine rating goes up, ...
2
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1answer
55 views

Is this queen endgame a win or a draw for White?

[FEN "6k1/8/4qp1p/7P/6P1/5P2/6K1/Q7 w - - 0 1"] I am unable to analyze this queen endgame in which it is White's turn. Is it a win or a draw for White?
2
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4answers
944 views

Is one move considered as objectively better than another if they both lead to the same result?

Here is an example [FEN "8/3k2PB/q7/8/4K3/8/8/8 w - - 0 1"] One might intuitively say g8=Q is a much better move than g8=R. However, since they both lead to a draw, should we not conclude ...
6
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3answers
3k views

Why is White's accuracy 99.7% instead of 100.0%?

Here is a short game played online at chess.com. [FEN ""] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 d6 5. d4 Bb6 6. dxe5 Black resigned for some unknown reason; maybe a mouse slip or he/she ...
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3answers
87 views

Why can't I find any tactics in this game?

[fen ""] 1. e4 {0} c6 {0} 2. d4 {4} d5 {0} 3. Nc3 {3} dxe4 {0} 4. Nxe4 {1} Bf5 {1} 5. Ng3 {3} Bg6 {0} 6. Nf3 {6} e6 {0} 7. c4 {9} Nd7 {0} 8. Be2 {5} Ne7 {0} 9. Bg5 f6 {0} 10. Bf4 {7} e5 {0} ...
6
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1answer
182 views

Why is the Budapest Defense considered not fully sound or even dubious? What theoretical difficulties arise for Black?

[fen ""] 1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 (4. Nf3 Bc5 5. e3) (4. e4 Nxe5 5. f4) (4. e3 Nxe5 5. Nh3) White can choose from multiple setups, most common are 4. Bf4, 4. Nf3, 4. e4 or even ...
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2answers
127 views

Unable to confirm theoretical evaluation

Theory claims equality for Black in the below diagram. My engine claims White is better and demolishes the line with convincing moves. Since I have old laptop, with 2GHz dual core CPU, I was ...
3
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2answers
114 views

Alphazero vs Stockfish

Is the particular ending really a draw? Someone may try will FinalGen , please? [Title "White to move"] [fen "8/1B2k3/p7/P6p/1n1p2pP/6P1/4KP2/8 w - - 0 1"]
0
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0answers
53 views

Forced mate in 'n' from opening [duplicate]

Advanced chess engines can report a forced mate (for some given position) within a huge number of moves. For example, mate in 40 or 50 is not unheard of. Theoretically, is it possible that there ...
7
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1answer
473 views

How to play this endgame without consulting the tablebases

Recently I got this position in a game I played as Black with White to move. [FEN "8/8/8/R6p/4KP1P/6P1/pr6/1k6 w - - 0 1"] Here, White captured with the move 1.Rxa2. It turns out that 1... ...
3
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2answers
152 views

Rook+Knight Endgame-Play For Checkmate?

I found myself in this position as Black during a recent endgame situation with White to move. [FEN "8/7k/2R4p/2p3p1/2N2p2/P4PnP/1P2r1K1/8 w - - 4 43"] What is a good way to approach ...
2
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1answer
83 views

What is the idea behind this move?

I was watching Nepomniachtchi - Liren match on Chess24 Legends Day 2. After having a pretty significant advantage [+7.1 (Stockfish 11)], White [Nepo] has played g4, and according to the engine, the ...
3
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0answers
40 views

Best move arrow in Scid vs PC

Is there a way to display the best move found by the engine on the main board? Lichess has arrows showing the best move (and even for the second, third, etc best lines). Is this possible in Scid vs PC?...
4
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2answers
93 views

How to calculate percentage of accuracy of game-play based on the number of mistakes, blunders and inaccuracies?

For some time now, chess.com analysis suggests the accuracy of the gameplay based on the blunders, mistakes and inaccuracies, one committed during his/her gameplay. Now, my question is, Whether there ...
1
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2answers
64 views

Material score in analysis report

Is it possible to do an analysis using Scid vs PC or any other major chess program where it shows material score after each move in addition to showing the normal evaluation score? So for an endgame ...
0
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3answers
143 views

Caro Kann opening

Is the Caro Kann Advance variation winning for White? In a game largely shown on a video , Stockfish 11 beat Komodo 14 with it. Since the prevailing consensus was that the move of Komodo Kh4?!was a ...
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4answers
4k views

Why is White considered so much better in this position?

I'm not sure I understand why Stockfish considers White so much better here. A look at the two strongest lines for White by Stockfish doesn't really give me much intuition about what White is playing ...
4
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2answers
135 views

Can I host lichess server to my local machine to use the study offline?

Lichess is a free, Ad-free and Open-Source chess server. To me, it has the best STUDY option over the internet. I am thinking whether it's possible or not to host a localhost setup using the source ...
9
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4answers
2k views

Why is Qf3 better than Nf3

I am training with an app and have played about 10 games in my life, most years apart. However, now I became interested in the game. So, please be a little gentle. I have this situation: I was going ...
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5answers
1k views

Why is Bd6 better than Be7, Bc5 and Bb4?

[FEN "r1bqkb1r/p4ppp/2p2n2/3p4/8/2N5/PPP1BPPP/R1BQK2R b KQkq - 1 9"] Be7 protects knight from getting pinned, Bc5 pins the pawn on f2 after Whites, castles, and Bb4 pins the knight. Whats ...
2
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1answer
344 views

Wwhy was f5 played here?

[FEN "r1b1k2r/3pnpbp/pp2p1p1/2q3B1/3pPP2/1B1P4/PPP1N1PP/R2Q1RK1 b k - 0 1"] In this position, f5 was played. The reasoning is that Black's king is still in the center, so if White decides ...
3
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3answers
201 views

Did Leela Zero miss a win in this position?

Did Leela Zero miss a win in this position from game 106 of the Computer Chess Championship, on move 83 with White to move? [FEN "8/2p1r3/2P4k/1P1pB2p/K2NbP1R/P5r1/8/8 w - - 0 1"] Here, ...
3
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1answer
520 views

Did Stockfish blunder a drawn position against Leela here?

I don't see how you can defend both pawns at once if the bishop is located on the f8 square. Where did Stockfish go wrong in this game? [FEN "5B2/3k4/2p4p/4n1r1/8/2R5/6K1/8 w - - 0 1"]
19
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6answers
6k views

Why struggle for a single pawn?

I've seen many chess games, where after a certain point, one side maneuvers their pieces (like doubling the rooks) to target a single point. Most of time it's a pawn on the wing and the other side ...
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1answer
88 views

Mate In N algorithm-Lichess Computer Analysis

Is it possible to have the computer analysis report mate in 12 moves to only change that to mate in higher number of moves, like 15 for example, after it searches deeper?
3
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1answer
241 views

Why taking the bishop with queen is better here?

[FEN "rnbq1rk1/pp1B1p1p/5bp1/2pPp3/8/8/PPPNQPPP/R1B2RK1 b - - 0 1"] The engine doesn't want me to take the bishop with the bishop, but to instead use the queen and I don't understand. What ...
2
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3answers
407 views

Can White defend and possibly win?

[FEN "1nkr2nr/pppp2pp/2b2p2/3q4/3P4/1NQ5/P1P2PPP/R1B1R1K1 w KQkq - 0 1"] Can White possibly win in this position and avoid a queen mate on g2?
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0answers
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How to visualize variations clearly? [duplicate]

So,I'm reading some annotated games and analyzing them in some app.I feel too lazy to make separate moves for the variations give and tend to do them in my head,but i find it difficult to do after say ...
6
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2answers
959 views

How to win a rook endgame with two extra pawns-4 vs 2 general plan

In this diagram it's White to move. Black should be winning in this endgame. I want a simple plan on how to move the Black pawns in a way that I will avoid the horizontal and vertical checks from the ...
1
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1answer
88 views

Is there any important thing to note from this game?

[FEN ""] 1. c4 c6 2. d4 d5 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Be7 7. O-O O-O 8. b3 b6 9. Qe2 Bb7 10. Rd1 Qc7 11. Bb2 Rad8 12. Rac1 Qb8 13. h3 Bd6 14. e4 dxe4 15. Nxe4 Bf4 16. Nxf6+ Nxf6 17. Rb1 ...
2
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2answers
116 views

What should be the next move in this position?

[FEN "2r1r1k1/pb5p/1pp1qb2/3p1p2/3Pn1p1/1Q2P1P1/PP2NPBP/2RRB1K1 b - - 0 1"] What is the best move for Black in this position. Everything seems defended here. What method is applicable in such ...
4
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2answers
977 views

How does b3 prevent e5 here?

[FEN "rnbq1rk1/ppp1b1pp/3ppn2/5p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - 0 1"] White plan is to play b3 and then Ba3 to render the move e5. But how does it prevents e5?
6
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3answers
308 views

How many positions does a GM analyze before making a move?

From a research paper: Chess players search highly selectively. It is rare that they analyze more than one hundred positions in the search tree before choosing a move. In the middle game how many ...
-1
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4answers
160 views

Black to move, is there a possibility to win in this position?

With Black to move, is there a possibility to win in this position? [FEN "3rk2r/1p2q2p/1Q1p1Bpb/1R1N3n/1P6/5N2/1P3PPP/4R1K1 b k - 0 1"]
1
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1answer
61 views

Why is the evaluation of the move h5 dependent on position of the bishop?

[FEN ""] [startply "50"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 13. d5 Nd8 14. a4 Ra7 15. Nf1 g6 16. Bh6 Re8 17....
2
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1answer
170 views

Why this move is good here but not few moves ago?

[FEN "r1bq1rk1/p2p2pp/1pn1p3/5p2/1PP1n1P1/P4N2/1BQ1PP1P/R3KB1R b - - 0 1"] Here, 1... fxg4 gives White an advantage. But 1...Nxf2 2.Kxf2 fxg4 is equal. Why is that?
3
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1answer
83 views

When Lichess analyzes a game, how deep does it analysis?

In reference to the request computer analysis feature, how how deep is Stockfish analyzing, such as looking 12 moves ahead?
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4answers
150 views

What is the best move for White in this position?

[title "White to move"] [fen "2b2rk1/pr2n1bp/2p1p1p1/2pqPp2/N2p1P1Q/1P1P1N2/P1PB2PP/1R3R1K w - - 1 0"] In this position, I was considering the best move for white. Re1 seems good but why not Ba5? Or ...
1
vote
1answer
97 views

Help needed to find the big mistake

Below is a a game in which I played as black. A chess engine analysis told me that I made big one mistake. Can someone point out what it is? [FEN ""] 1. d4 b6 2. e4 Bb7 3. Nd2 g6 4. Bd3 Bg7 5. Ngf3 ...
3
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2answers
669 views

Can someone explain the positional advantages for white?

[FEN "3r1rk1/7p/bq2ppp1/p1R5/Pp2P2P/4QB2/1P3PP1/3R2K1 w - - 0 1"] As far I can see, Black’s bishop has more scope than the white one, White has some isolated pawns, and the Black pawns rule the 5th ...
5
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2answers
2k views

Why is Qf5-c2+ a blunder?

Wikipedia defines a blunder as follows: In chess, a blunder is a very bad move. It is usually caused by some tactical oversight, whether from time trouble, overconfidence or carelessness. Here when ...
5
votes
1answer
272 views

Why is 5. Nc3 preferred over 5. f3 in the Open Sicilian?

The statistics at move 5 seem amazing for White, slightly better than Nc3. I was wondering how White can "get away" with the plan to play c4 before Nc3, achieving even more control of the center. So ...
4
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1answer
144 views

Gyula Breyer joke composition cooked?

I recently bought the delightful book Outrageous Chess Problems by Burt Hochberg, which among other things contains some interesting joke compositions. I have a question about Problem 102 (diagrammed ...
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vote
2answers
89 views

Why move the queen’s rook to defend d-file instead of king’s rook?

In this position, why is it better to move the queen’s rook to defend the d-file instead of the king’s rook? Moving the king’s rook to the d-file becomes more challenging. Is it important to leave ...
1
vote
2answers
130 views

Checkmate possibility for Black

In this lichess game, in the given analysis line for move 32, is it possible for Black to win in two moves after 35... Kc7? [FEN "8/R4k2/2p3p1/2N4p/3n4/3P1pPb/PP3P1P/6K1 b - - 0 1"] 1... Ke8 2. Ra8+ ...
4
votes
2answers
277 views

Is there any website that allows you to check if a position has been played before?

Is there any website that allows you to check if a position has been played before? I want to analyse a game and I want to check if it has been reached before. Any suggestions?
2
votes
3answers
108 views

I read that Mikhail Tal claimed to have been able to see 50 variations ahead in a game. Any thoughts on this possibility?

Mikhail Tals' books on chess. Learning/analytic chess theory. Perception and intuition in the development of strategic and tactical chess play.
10
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3answers
2k views

Why are these moves recommended?

I am playing chess on the chess.com app with the top three suggested moves: I am an amateur. I get the basic idea that developing your knights is a common, good thing early in the game, but why is ...
8
votes
2answers
281 views

Outside-the-box mate-in-one challenge

I've received an (I would say impossible) mate-in-one challenge and I have already checked all movements, but couldn't solve it yet. It came from a trustable source and they say you need to think ...
1
vote
1answer
89 views

Attacking moves

While playing chess against a computer I am able to analyse what the computer is going to move even at the highest difficulty level but I am not able to place good moves against the computer. Can ...

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