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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How to solve interface issues on Sesse analysis tool? [duplicate]

I tried to use the sesse analysis tool (https://analysis.sesse.net/), but when I use it, there is a big issue : there are no pieces on the board, so i can not play a move, I can't use the tool. I ...
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Why not 7.Bb4+ before playing Ne7 in the French Defence: Advance, Paulsen Attack?

After playing 5.Qb6 which I believe is the final move of the Advance variation of the French, my opponent played 6.a4. I followed with cxd4 and them by cxd4 as well. After that I couldn't remember the ...
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1answer
97 views

Why does Stockfish lose against this piece sacrifice in the Berlin Defense?

In a recent YouTube video, Jonathan Schrantz presents an absurd (?) piece sacrifice in the Berlin Defense, which Stockfish seems to vastly underestimate. The engine evaluation shows around -4, until ...
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3answers
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How do you play if both sides get a queen?

Here, I've read through the famous Réti endgame study. However, there is a possibility that both sides can get a queen. For example, take a look at this variation. [FEN "7K/8/k1P5/7p/8/8/8/8 w - -...
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1answer
178 views

What is the difference between a brilliant move and the best move?

As far as I know, nowadays the chess engines can judge that a move is the best or that it is brilliant (usually denoted by ! or !!). I was wondering what is the precise criterion for this ...
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1answer
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Why is Ne4 considered as an inaccuracy whereas it is one of very few moves which saves d3 pawn?

[FEN "r2q1rk1/1p3ppp/p4n2/2Pp4/1Pn5/P1Bp3P/3N2P1/R2QN2K b - - 4 21"] With Black to move Ne4 is not even in top 5 moves and engine says its an inaccuracy. I know it considers fastest winning ...
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4answers
2k views

Website or program that creates puzzles from blunders in your past games

I'm looking for a website or program that would look at your past games on Lichess or chess.com and find moves that you played that were blunders and create puzzles around those
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How do you analyze master games without annotations?

I am starting to analyze master games more often because I never really do. But I play openings most masters don't and most games with these openings don't have many annotated games. So, how do you ...
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254 views

I developed all the pieces I could. Now what?

I was playing chess against an AI, and found myself in this position (Black/me to move): r1b2rk1/4n3/p1p1p1p1/1p1pPp1p/1PnN1P2/2NB4/2PP2PP/1RB2RK1 b - - 0 1 The only moves I could think of were ...
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2answers
221 views

What's the idea behind delaying capturing the rook (25…Rd2) in Hug–Spassky (1973)?

I've been studying a series of games featuring the King's Indian Attack and in Hug–Spassky (1973)[1], I don't understand why White delays capturing the rook after 25...Rd2. Why play 26. Nd3? Is White ...
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1answer
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What is the best move in this puzzle rush?

[FEN "2b2r1r/2k1q1b1/2p1p2p/1p1pPp2/pP1P1RB1/P1N5/2P1Q1PP/5RK1 w - f6 0 1"] [starpPly "2"] 1. Bh5? In this puzzle rush from chess.com, it says that Bh5 is the wrong move, ...
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What was the best move for white? Could white have won?

Could white have won this game? What was the best move in this position for white? Or could Black have won?
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2answers
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Why does castling in the Four Knights: Double Spanish opening inadvertantly stop Bxc3?

So I am currently working through Chess Fundamentals by Capablanca and he said something I find opaque: following 1.e4, e5 2.Nf3, Nc6 3.Nc3, Nf6 4.Bb5, Bb4 "5.0-0 an indirect way of preventing 5.....
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Why is exchanging these knights the best move for white?

Why is exchanging these knights the best move for white? I'm trying to understand how to get better with strategy and tactics.
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Why does the engine dislike white in this position despite the material advantage of a pawn and other positional factors?

After a trade that sacrified a bishop and a knight for two pawns and a rook, the game reached the following position: (White to move.) [FEN "2r2qk1/1b1n1pb1/p4n1p/1p4p1/4P3/1BN2P2/PPP3PP/R2Q1RK1 ...
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1answer
2k views

Why is the engine suggesting this move?

[FEN "r1bqk1nr/p1ppbppp/1p6/n2P4/8/2N5/PPP1QPPP/R1B1KBNR w KQkq - 3 7"] 1. g4 With White to move, the Lichess engine suggests g4 in this position. Can someone explain why it's a good move?
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190 views

Why is Bf8 a blunder in this position?

Here is an analysis of a game I played recently in Chess.com app. I won this match in move 19 as the opponent resigned. Please see the image attached for the position. On move 16, after the White ...
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1answer
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Lichess summary analyzer tool

I'm trying to find an online tool that I had once used to analyze my games. It allowed me to import thousands of my games from Lichess and showed what my most common opening mistakes were. The only ...
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2answers
545 views

A question about a puzzle

It's White to move. Why does Stockfish evaluate 13. Kh1 so much higher than 13. Rf2? They both seem like reasonable options for me, yet the former is evaluated +7.95 for white and the latter is at -0....
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How could I have prevented this long drawn out game?

Consider the following game. I am black. [FEN ""] 1. e4 g6 2. d4 d5 3. e5 e6 4. Nf3 b6 5. Nc3 Bb7 6. Bg5 Be7 7. h4 Nc6 8. Bd3 Qd7 9. Qd2 O-O-O 10. Nb5 f6 11. exf6 Bxf6 12. a4 h6 13. Bxf6 ...
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2answers
596 views

I am trying to understand chess moves

Hi I am trying to learn chess, and when I review my moves, I just don't understand how Nd4 is a good move and how nh4 is a blunder. Thanks.
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1answer
116 views

Guessing who has to play next

Assume an observer sees a chessboard in the middle of a game. At which point in a game does it become impossible to determine who has to play next between White and Black?
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3answers
196 views

Stockfish depth calculations

I'm using Stockfish to analyze my blunder filled games for blunders. Let's say you send stockfish a FEN for a position and then calculate to a given depth ... position fen the-starting-position go ...
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2answers
125 views

Why was the engine giving such positive evaluations for my game with equal material?

I just played a game on chess.com that was roughly equal material until the final move (I was one pawn up for most of the game) but the engine favours my position to the extent that by move 12 I had a ...
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1answer
105 views

Why is this a better move?

Playing on chess.com against the first advanced bot, "Antonio", I've lost a game and looked at the analysis. The following is the state of the game not far from the beginning, where I had ...
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1answer
113 views

Why does Stockfish recommend Kg2 here?

When I turn on threat analysis and it gets to a depth of 24, it says Black wants to play Qe7 or Nh7 (after the latter, White's recommended move is again Kg2). I imagine the point of White's move is to ...
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2answers
94 views

Why is bishop to h8 the best move in this position?

I don't understand how that move is a good move, much less the best move according to this chess.com analysis.
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1answer
135 views

A deceptively simple eight piece endgame

I am in the dark about the following endgame, with white to move. May someone with FinalGen (or a powerful engine) give me a response? Is it a White win or a draw? [FEN "8/1k6/5R2/P7/1KP4p/5P2/8/...
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1answer
88 views

Guide to understanding engine analysis output

Not having played for decades, I am getting back into chess, with all the great programs. I have Shredder 13 and Fritz 17. Both can output very impressive analysis. But for an effective newbie, where ...
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1answer
181 views

Why does white not play cxd4 here?

I am Black and my opponent is White. Here the computer recommends Rxd4, which I have done (the rook captured bishop here). [FEN "4r1k1/1pp2pp1/p6p/4q3/P2rPn2/2P1QP1P/1P4P1/R4RK1 w - - 0 1"] ...
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10answers
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Can luck be used as a strategy in chess?

Consider below games where white looses a clean rook quite early in the opening but fights on hoping that they will be lucky and escape. Lucky enough, they escape and win the clearly lost game. [Event ...
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2answers
150 views

How would you play this position as White?

[FEN "r1bq1rk1/2p1ppbp/p5p1/1p1n4/3PNB2/1P2PN2/n4PPP/2RQKB1R w K - 0 1"] I'm not sure what move makes the most sense in this scenario. I would love to learn from others.
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Why is an early e5 against a Yugoslav setup evaluated at +2.6 according to Stockfish?

I was looking at analysis on one of my games and found this variation against a Yugoslav attempt against the Sicilian Dragon which Stockfish 12 instantly says is +2.6 for white: [FEN ""] [...
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3answers
1k views

Why is this “slow move” with the king a good move?

rn1qkb1r/1p3pnp/p1p1p1p1/3pP3/3P2P1/2NBBQ1P/PPP2P2/2KR3R w kq - 0 13 Stockfish (depth 30) says the best move is Kb1 with +1.5 evaluation. I'm having trouble to understand why. The a2 pawn is not ...
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2answers
76 views

Sites to understand errors

There are several sites where one can analyse his/her game. I often use lichess at the end of a game to see where I made mistakes. What I miss, though, is some kind of explanation of why a certain ...
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2answers
293 views

Comments and advice on a game that I played against 1.h4

I was playing a game with the Black pieces the other day against 1. h4. The reason why I wanna discuss this game with you is that during the game I always felt that my position is not stable, and at ...
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0answers
40 views

How to do forward analysis in Fritz

In Arena chess, there is an option to do analysis in direction, 'forward or backward'. Check the picture. I think by default, Fritz does backward analysis. Is there a way to change it into forward ...
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1answer
86 views

How to view Arena Chess analysis in a chess program?

I made an analysis of a chess game in Arena Chess with stockfish engine. The analysis completed successfully. My question is how can I watch this analysis in a chess program. Arena chess says it made ...
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4answers
133 views

How can I do batch analysis of games?

I want to run a batch analysis of games and produce output like Lichess computer analysis. I want to do this offline on my desktop PC. Since Stockfish is free, there must exist some solution. Does ...
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1answer
490 views

In this position why shouldn't the knight capture the rook?

The white knight is going to move to e6. However, the computer advises the rook to capture the pawn in b2. Even after the knight moves to e6, forking the queen and the rook, it advises to NOT capture ...
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1answer
116 views

How does his 3 step plan by Petrosian works?

[FEN "r6k/3q2bp/1p6/2pPp1p1/2P1QpP1/5P2/1P2R2P/2B3K1 w - - 0 1"] Here Petrosian gives the following 3 step winning plan: Stage 1: Tie down the black pieces to defense of the e pawn: 13.Bd2 ...
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2answers
410 views

How many possible chess moves are there?

Starting from the standard initial position, how many possible legal chess moves are there in this and all possible following positions? Say, ignoring the starting position, a bishop can move to 32 ...
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3answers
5k views

Given a legal chess position, is there an algorithm that gets a series of moves that lead to it?

Say, given a FEN board position return a PGN move list that evaluates to it from the initial position?
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1answer
60 views

What are some free chess software for showing the best moves in the final output analysis?

I appreciate any free chess software that can be used for analyzing chess games. However, some of them are difficult to use, showing a large number of lines with many moves which are not displayed in ...
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0answers
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Novelties at great depth-are they worth it? [closed]

I was reviewing some of the Speed Chess Championship games and came across a really interesting novelty from Nakamura. [Event "Speed Chess Championship 2020"] [Date "2020.12.09"] [...
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4answers
2k views

Can someone tell me if this is a checkmate or stalemate?

[FEN "5rk/Q1p2p1p/4p1p/2Pq2b/3P2n/4P1Pb/PP1B1P1P/R2R2K w - - 0 1"] Apparently, the system says that it's checkmate, but I don't get it. Can someone please explain it?
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2answers
430 views

Question about the computer's valuation

My friend recommended me this good community. However, I'm new to this format so I had no idea about including a chess game in my text. By looking at the previous questions, there should be some way ...
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1answer
144 views

How to interpret lines of play computed by Stockfish during annotations

I am learning how to use Stockfish to analyze my games, and I had a question on how to understand Stockfish's output. Consider the screenshot when I request stockfish 12 to annotate my games inside ...
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3answers
2k views

How do I respond as Black to 1. e4 e6 2.e5?

What is the best way to respond in the French Defense to 2. e5? It has to be wrong to play this way. I am of the opinion that d5 is a good answer. I can find no reference to this move in MCO.
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1answer
127 views

lichess puzzle 61124

I am a beginning chess player, and just had a look at lichess puzzle 61124. The following contains spoilers. The solution to the puzzle is supposedly Rd4, then the follow-up move from white is Nb6, ...

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