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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3
votes
1answer
164 views

I can't understand this puzzle

I came across this puzzle and even after I learned the answer I couldn't quite understand what's going on. I understand that we amaterial advantage by capturing the knight with a pawn, but I can't ...
4
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0answers
38 views

KID, Fianchetto Variation: 7…e5 vs 7…a6

In the Lichess database, this is the most popular way to play against the Fianchetto Variation of the KID: [FEN ""] 1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nc6 7.O-O e5 But at ...
2
votes
1answer
147 views

Where was Stockfish's fatal mistake in this game against Leela?

This is a game from the TCEC Season 18 superfinal, which Leela won with a beautiful positional bind. [FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"] [Event "TCEC Season ...
4
votes
2answers
131 views

Is the Dunst Opening with 3. Nce2 unsound?

I am trying to find a line in the Dunst Opening where: White's guaranteed to develop his bishop to an active square such as c4 or b5. Black doesn't get to suffocate White by playing d3. So far I ...
14
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2answers
4k views

Which methods can be used to prove that a position is illegal?

Given a board position, there are programs that try to find a series of legal moves that lead to it. Are there algorithms that can do the opposite - prove that the position is not reachable by a ...
2
votes
0answers
43 views

How do I get Stockfish to write its analysis to a file using a batch file on Windows?

I can get this to work in a Windows Command Prompt window as follows: stockfish_14_x64_modern.exe uci ucinewgame position fen rnb1kbnr/ppp1pppp/8/3q4/8/8/PPPP1PPP/RNBQKBNR w KQkq - 0 1 go depth 17 ...
0
votes
1answer
92 views

Why are these sequence of steps played to solve this puzzle?

[FEN "rnbqkb1r/pp4pp/2p1pn2/3p1p2/3P4/BP4PN/P1P1PPBP/RN1QK2R b KQkq - 0 1"] [StartFlipped "0"] 1... Bxa3 2.Nxa3 Qa5+ 3.Kf1 Qxa3 FEN: rnbqkb1r/pp4pp/2p1pn2/3p1p2/3P4/BP4PN/...
3
votes
1answer
158 views

Why does Stockfish evaluate this position as equal?

After solving the puzzle while I was analyzing this endgame, I was just surprised to see stockfish evaluates this position as equal. After Ke4, Ke6 (Opposition); Kf4, and f5 -- I can't find out any ...
2
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0answers
40 views

Online tool for chess analysis: comment, add variations, insert diagrams, print

Sometimes I like to analyze and annotate my own games and print them on paper. This would usually include commenting some moves, adding variations, inserting diagrams for certain positions, etc. I ...
3
votes
3answers
155 views

Why does Stockfish evaluate this Lichess puzzle position as so advantageous for Black?

[Event "Rated Rapid game"] [Site "https://lichess.org/tZI4OlZ3"] [Date "2021.04.20"] [White "Paulinos"] [Black "Qedesh76"] [FEN "r3qrk1/2pbbppp/...
7
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5answers
605 views

What is the point of c3 in the Sicilian Alapin?

In the Alapin variation of the Sicilian, the game goes 1. e4 c5 2. c3. However, this sequence just blocks the b1 knight from its best square, and it doesn't develop anything. Both squares attacked by ...
7
votes
3answers
1k views

Why did Lichess annotate this as a blunder?

Lichess analysis annotated 4. Nf3?? as a blunder preferring (4. Nc3) (see on Lichess). I am trying to understand the ideas that make this a blunder. At depth 23 with Stockfish 13+ NNEU, both were ...
21
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2answers
4k views

Are there any moves that humans agree are best which engines cannot see?

Are there any moves from real, preferably reasonably well known games which humans agree are great moves, but which engines cannot see, or, at least, think are weak/average? Here is an example that I ...
8
votes
1answer
2k views

How does black proceed in the following position?

Shown below is a game I have been trying to solve, Black has been better for the whole game but resigns at the end. On checking the analysis stockfish says black is still better [Event "Hourly ...
4
votes
2answers
239 views

Who is actually winning here?

I came across this interesting position: [Title "Black to move (with full castling rights)"] [FEN "r2qkb1r/pp1nn1p1/7p/5N2/3p4/2P2N2/PP2QPPP/R1B3K1 b kq - 0 1"] On first glance, ...
1
vote
0answers
71 views

ChessBase and Scid vs Pc Annotation

Before posting, I searched all around the board to find if anyone else had asked the same question, but no luck. So I am legally blind, but I love to play chess, and I like to annotate games. Chess....
8
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2answers
2k views

Why is g3 a bad move here?

Why is the last move by white, g3 on the board below, considered a bad move? It was in a game that I played recently and my idea was to protect the bishop in f4 and give the other bishop more space to ...
5
votes
1answer
241 views

Why is the King's Indian often used to play for a win against 1. d4 when it allows an early queen trade?

Lichess's opening explorer database shows a 49% win rate for White wins compared to Black's 41% in the King's Indian, Exchange Variation. Meanwhile, the Master's database shows a whopping 64% draw ...
4
votes
4answers
784 views

How to realize this +2 evaluation in the Ruy Lopez, Steinitz defense

I played a game as White using the Ruy Lopez: Steinitz defense against a lower-rated player (1594 vs. 1500 on chess.com). While I won the game due to a blunder by my opponent in a drawn endgame, the ...
1
vote
1answer
356 views

Clive Ke’s wrong?

As you see, Clive suggests moving the knight, but how on earth can black get a pawn to a3?
6
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1answer
2k views

The engine is recommending Qc1 and I cannot figure why it is the best

I tried a lot of variants to induce checkmate or gain material by moving the recommended move Qc1. I tried it instead of Nc4, which the engine considers a blunder. However, I cannot solve why it is ...
2
votes
2answers
208 views

How can I load a position without kings into an engine?

I would like to be able to do load a position into a whatever possible (advanced) engine without kings. For example, the goal of the game would be to annihilate all the possible pieces instead of ...
0
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1answer
233 views

Is Whale Variation a successful opening?

I am an early, intermediate in chess. I played the Whale Variation and won some games as White. But there is an issue when Black moves their knight to d4. I have a problem with it. Is the Whale ...
3
votes
3answers
221 views

Identifying principles and thought processes to use in locating a +3.2 or similar move

[Title "indrekaavik-Swifty15, chess.com, 5/3/2021"] [FEN ""] [startply "29"] 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. h3 c5 6. c4 Nc6 7. cxd5 exd5 8. Bb5 Qa5+ 9. Nc3 ...
2
votes
1answer
152 views

Queen versus rook endgame: to check or not to check?

Most tutorials the K+Q versus K+R endgame claim that at some stage, the key is to force the rook away from the king, then it is supposed to be easy: give a series of checks and fork/skewer the rook. ...
1
vote
1answer
134 views

I'm struggling to find the full solution of a chess problem

I'm starting to think that this puzzle, found on chess.com here in the 5th post down, does not have a correct full solution. But it features a nice line if Black moves wrongly, so judge by yourself. [...
4
votes
3answers
174 views

What is the correct way to play this endgame?

[FEN "4k3/1pp2ppp/p1p5/8/4P3/8/PPP2PPP/4K3 w - - 0 1"] I win this position vs the computer sometimes, and sometimes not. But I assume there is a principal way to play this endgame that ...
6
votes
3answers
3k views

Why is 12… d4 a blunder?

I recently played a game featuring the Old Sicilian with a bit of a branch-off. White played 3. Bc4 after 2. Nf3 Nc6, which I don't deal well with. I ended up playing 12... d4, attacking the White ...
3
votes
0answers
91 views

Is there a solution to this puzzle in Clive Ke's “How to improve in chess” book? [closed]

I am wondering if there's a solution to this puzzle anywhere. [FEN "3r4/p4k2/1p2bb1p/2p2pp1/5P2/1NP1B2P/PP4P1/4R1K1 w - - 0 1"] Here's the description of the puzzle in Clive Ke's "How ...
-4
votes
2answers
135 views

An incredibile endgame

Is the following position [FEN "8/P1R5/K3p3/4k3/B3b3/8/8/1r6 w - - 0 1"] a win ( for White) or a draw? The position above is derived from a variation of Stockfish vs Komodo TCEC Season 19 ...
2
votes
2answers
332 views

In chess.com analysis, why is a rook promotion better than a queen promotion?

I was analyzing a game on chess.com and it showed me that, in the below scenario, it is better to promote to a rook instead of promoting to a queen. It also shows that it has a mate in 6 with the ...
2
votes
3answers
202 views

Tools to analyse weaknesses based on Lichess history

Are there any tools that can find weaknesses in your games based on your Lichess history (eg, you often play a particularly bad line in a certain opening, or often fall for a certain trap), and then ...
2
votes
2answers
228 views

Karpov vs Kasparov, Game 41

In the common literature, it appears as truth that Karpov missed the winning a6! instead of Rxd1 on move 33, Game 41, in the first Karpov vs Kasparov match. But is the following position, derivate ...
12
votes
3answers
3k views

Why move bishop first instead of queen in this puzzle?

In this puzzle (white to move), the solution first moves the bishop (to pin the knight) and only then the queen. Why is it better to move the bishop first? [FEN "r2qk2r/pbp1bpp1/1pnp3p/8/3NP3/...
-4
votes
1answer
152 views

Analysis all games by a chess.com user? [closed]

How do I analyze the moves made by a user by looking at all the games played by a Chess.com player? What I'm exactly looking for is how I do make openings as black. Aggregates results would be amazing....
3
votes
1answer
165 views

In the shown position, should I push pawns or trade material?

In the following (now finished) game, I was unsure at this point how to proceed. One thought was to take the pawn at d4 with the rook, in order to entice a rook/rook trade since I'm up on material. ...
1
vote
2answers
807 views

The early …Qf6 in the Scotch Game

In the Scotch Game, what is the best move for White after this sequence? [FEN ""] 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qf6 5. Be3 (5. Nb5) (5. Nf3) 5...Bc5 Most videos don't even count ...
3
votes
1answer
93 views

Playing with Ranks Advantage

[FEN "rnbqkbnr/pppppppp/8/PPPPPPPP/RNBQKBNR/8/8/8 w - - 0 1"] I was planning to play white against the computer, starting with the positional advantage as shown above. I don't know how to ...
0
votes
0answers
6 views

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 ...
3
votes
1answer
141 views

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 ...
2
votes
1answer
182 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 ...
6
votes
3answers
4k views

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 - -...
6
votes
1answer
295 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 ...
3
votes
1answer
510 views

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 ...
9
votes
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
11
votes
2answers
881 views

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 ...
6
votes
2answers
279 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 ...
3
votes
2answers
235 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 ...
7
votes
1answer
1k views

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, ...
0
votes
2answers
128 views

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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