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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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Best interesting chess engine?

I've been wanting to use a chess engine for analysis to push myself to the next level as I'm coming back from a long chess hiatus. I have tried using Stockfish, but I want a chess engine with nasty ...
Hugo's user avatar
  • 21
4 votes
0 answers
30 views

What’s the origin of “!” & “?”

Who first started to annotate chess moves with “!” for good & “?” for bad?!
Laska's user avatar
  • 12.4k
2 votes
1 answer
492 views

One-liner double zugzwang

Can you construct a position on a single file (double your points if it is the a or h file, triple if position is symmetric) which is a mutual full point zugzwang?
Hauke Reddmann's user avatar
7 votes
0 answers
90 views

Is "Pawn Pugilism" won for White or Black?

There might be another established word in English (in German it's "Bauernkloppe") for this training lesson for kids, but the rules are simple: Both sides have only the pawns at their usual ...
Hauke Reddmann's user avatar
2 votes
0 answers
87 views

A game I might have read about, Kasparov had to analyse an opening line from scratch and ended up winning anyway?

If my memory isn't tricking me, didn't Kasparov once get a game where early in the opening he didn't know the line, so he sat down for 45 minutes and worked out that the best move is Qc7, and went on ...
Chris Sanders's user avatar
0 votes
3 answers
158 views

Why not let players occasionally take back moves or try different variations in serious classical games?

Sorry if it sounds sacrilegious, you all probably know which move I'm talking about. (Edit: for future readers, it's the latest mate-in-2 blunder by the current World Champion Ding against Magnus ...
alices_and_bobs's user avatar
0 votes
1 answer
63 views

How to analyze new opening, in a tournament time-frame, as an intermediate?

This is a hypothetical question as I'm not actually taking part in tournaments but the question is I think worth posing. I was non-chalantly playing this as black against a chess.com bot: [StartPly &...
Chris Sanders's user avatar
1 vote
1 answer
109 views

Is this what I should have done or should do next?

When I analyze my game, is the analysis machine (stock fish lite on chess.com) telling me what move or I should made instead of the one I just made, or is it telling me what move it thinks I should ...
Nathan's user avatar
  • 11
1 vote
1 answer
151 views

Why is this position so good for Black?

[Title "White to move"] [FEN "4r1k1/pp3pb1/2r3pp/8/3R2PP/2N5/PP3P2/1K4R1 w - - 0 27"] This position is from the TCEC Season 26 superfinal, game 21 with White to play. It looks ...
Allure's user avatar
  • 27.9k
3 votes
2 answers
141 views

What is the "main line"?

I often encounter this in tactic quizzes - the answer the defender plays "in the main line" I don't even consider because I think there is something better. (I'm a strong defender, but of ...
Hauke Reddmann's user avatar
0 votes
2 answers
112 views

How do you systematically analyze an arbitrary chess position?

I've recently been learning the fundamentals of the game using the chess.com lessons and game reviews, but the thing I can't seem to figure out is how to even know what to look for or focus when ...
Mikayla Eckel Cifrese's user avatar
5 votes
3 answers
828 views

Are there Chess AIs that factor in moves’ practicality for humans?

Sometimes Chess engines identify the best move as a move that’s mathematically the best but would be difficult for a novice/intermediate to pull off because it must be followed up by a specific, ...
clickbait's user avatar
  • 689
4 votes
1 answer
143 views

Are there sites that specialize in engine checking old chess books?

I bought some old chess books from the 80's, 90's, early 2000's, and some even older ones. Certainly they are not engine proofed or checked. Are there sites that are dedicated to checking these books ...
Wassim Saeed's user avatar
0 votes
1 answer
164 views

A blunder or a brilliant move?

Is this a blunder ? Bg7xa1. What next ?
user2925716's user avatar
7 votes
1 answer
787 views

Why is Ncxe5 more accurate than Ndxe5?

In a rapid game I played on Chess.com, I played the KID and got this position: [Title "Black to Move"] [FEN "r3qrk1/pppn1pbp/2n3p1/4P1B1/2P1P1b1/2N2N2/PP2B1PP/R2Q1RK1 b - - 4 12"] ...
Hank's back rank's user avatar
3 votes
1 answer
209 views

In this position, why is Nb4 better than b4?

Here as white, I played b4: [FEN ""] [Startply "46"] 1. c4 g6 { A10 English Opening: Great Snake Variation } 2. Nc3 Bg7 3. g3 e6 4. Bg2 Ne7 5. Nf3 O-O 6. O-O c6 7. d3 d5 8. cxd5 ...
dsa's user avatar
  • 31
0 votes
0 answers
74 views

How to use the GPU with python-chess and chess-engine

I am working on a project to import a number of games as a PGN (game = chess.pgn.read_game(pgn)) and then iterate over each game and each move to evaluation the position with stockfish. Using my ...
Stephan's user avatar
  • 13
11 votes
2 answers
3k views

When can legions of knights on an infinite chessboard checkmate a lone king?

On an infinite (perhaps only in one direction?) chessboard, what kind of configuration of (possibly a very large number of) knights could checkmate a lone king? I'm really thinking of an infinite-in-...
paul garrett's user avatar
5 votes
1 answer
238 views

Why is this the correct answer to chesspuzzle.net puzzle 37161?

https://chesspuzzle.net/Puzzle/37161 [FEN "r4rk1/2p2n1q/1p1b4/3Pp3/2Q2pP1/P1N1B2P/1P4P1/2RR2K1 w - - 0 1"] 1. Ne4 The answer given is Ne4, which is followed by the pawn on f4 capturing ...
Jules's user avatar
  • 153
0 votes
1 answer
189 views

Why is Ng3+ brilliant?

Why is the move Ng3+ brilliant? 1kb4r/2q2p2/pp4r1/2bPp3/2p1P2p/2P2Qn1/P1B2NPP/2B1RR1K w k - 0 1
user2925716's user avatar
0 votes
2 answers
291 views

How to train an efficiently updatable neural network (NNUE)?

I've been working on my own chess engine for a while now. It uses standard minimax search. I've trained a convolutional neural network as a static evaluation function, and I've had some good results ...
Nonlinear's user avatar
  • 101
1 vote
1 answer
85 views

Has anyone looked at the percent of brilliant, best, book, etc moves in chess.com by rating?

After a game, chess.com lists moves as "brilliant", "best" etc down to "blunder". I'm wondering about the % of each for random selections of players at different levels ...
Peter Flom's user avatar
0 votes
2 answers
108 views

Any functional Stockfish online API in 2024? (preferably with WebSocket support)

I'm on the hunt for an online Stockfish API where I can send either a FEN/PGN position or a list of moves and get back some info like evaluations / variants / best moves. I've been scouring ...
stealz's user avatar
  • 131
-1 votes
1 answer
339 views

What is the best move in algebraic chess notation? [closed]

I can't fine the best move with algebraic chess notation. [Title "White to Move"] [FEN "r3n1rk/q3NQ1p/p2pbP2/1p4p1/1P1pP1P1/3R4/P1P4P/3B2K1 w - - 0 1"]
user36777's user avatar
1 vote
0 answers
401 views

DTM in a random N-piece position

Formulate how many plies are the DTMs if there are multiple checkmate variations (Depth to Mate ignoring 50-move rule) for a random N-piece chess position if any checkmate exists, (and also consider ...
nirates biadenroc's user avatar
3 votes
1 answer
308 views

Why does the engine evaluate black's position as better here?

I recently played a game as white, that ended in a draw. I thought I had a big advantage at some point, but when analyzing it, the engine says that black was actually in favor ~ -1.1. I was a central ...
d4zed's user avatar
  • 1,197
2 votes
1 answer
467 views

Wining possibility for defense D00 - Queen's Pawn Game: Mason Attack from 15th move

Please have the game link over here. I made my mistake not moving ...Nh4 with ...Nh4 as white I feel I do have the possibility of winning if I would've made. [FEN "r2q1rk1/1pp1npp1/p2b2bp/3Q4/...
Inc Operations LLC's user avatar
2 votes
1 answer
78 views

Game Analysis Techniques of Grandmasters in the 1970s for World Chess Championships

I'm interested in the historical aspect of chess, particularly in how grandmasters prepared and analyzed their games during significant events like the World Chess Championships in the 1970s. My ...
Iman Mohammadi's user avatar
0 votes
2 answers
816 views

Which Chess Engine is Most Preferred by Grandmasters for Analysis and Considered the Fastest and Best Currently?

As an avid chess player looking to improve my game, I am curious about the tools that top-level players, especially grandmasters, use for analysis. Specifically, I am interested in knowing which chess ...
Iman Mohammadi's user avatar
0 votes
1 answer
72 views

Which Chess Notation is Most Commonly Used in Grandmaster Classic Games?

I'm interested in understanding the preferred method of notation used in classic games played by grandmasters. Specifically, I'd like to know which version of writing the moves of a game is more ...
Iman Mohammadi's user avatar
0 votes
1 answer
92 views

Need help on a specific situation (beginner friendly)

I am a beginner and got myself into this situation. (I'm white) Is there any way to get out of it or some tips somebody can give me or is this situation hopeless? I would appreciate it if you took a ...
lalalalaaaa's user avatar
3 votes
0 answers
87 views

Baroque/Ultima vs. Chess

Baroque a.k.a. Ultima is a chess variant in which all the pieces except the kings have quite different powers than in regulation chess. They all make non-capturing moves like queens (except the "...
bof's user avatar
  • 3,852
3 votes
0 answers
120 views

Can previous and continuing research on N-piece tablebases be used toward human theory of chess?

This follows another questions here: What is the status for EIGHT piece endgame tablebases? My answer there was appropriately removed as being question in reaction to that question, well in light of ...
dbdb's user avatar
  • 172
0 votes
0 answers
33 views

What engine & setup can I use to analyze a Bughouse position from a single board only (one board), taking into account the pieces in hand?

I have looked at the Sjeng and the Bughousechess.wz.cz website and the answers in the other page. This is not quite a Crazyhouse equivalent analysis, due to the capture mechanics. The pages are very ...
Mark C's user avatar
  • 101
5 votes
4 answers
393 views

Is this position a draw?

I was playing at my local chess club on Sunday and I had the position below as white. Me and my opponent continued for a while before finally agreeing to a draw. When I play it against bots as white ...
Bob's user avatar
  • 49
5 votes
3 answers
314 views

Most imbalanced (but equal) chess position?

I recently found this beautiful position, Position 11 where White sacrifices a bunch of material and then there are a bunch of crazy variations that all end in draws. For example this variation which ...
Hank's back rank's user avatar
-2 votes
1 answer
295 views

Mate Solving or problem solving software

I have some positions in my games which engine analysis indicates that some lines (not the ones I played) lead to a checkmate in 6 or 7 or 10 moves. But normal engines are not reliable here so I use ...
Wassim Saeed's user avatar
3 votes
2 answers
324 views

Why is h3 a mistake?

This is the 12th move of this game I played as white: https://lichess.org/b7B16RLF/white#22 [FEN ""] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Be3 { C65 Ruy Lopez: Berlin Defense, Kaufmann ...
csmathhc's user avatar
  • 179
1 vote
1 answer
171 views

Why is Ba4 an inaccuracy here? Why is Bd3 the best move?

I played this game recently as white: https://lichess.org/b7B16RLF/white#18 [FEN ""] 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Be3 Bxe3 6. fxe3 d6 7. d4 Bd7 8. Nc3 O-O 9. Qe2 a6 10. Ba4 ...
csmathhc's user avatar
  • 179
1 vote
1 answer
167 views

How to play Botvinnik-Carl's defence in the Caro-Kann when White responds with 4. c3?

In the Caro-Kann, Botvinnik-Carl's defence, Black typically wants White to take on c5 so Black can play e6, preparing Bxc5 and Nc6. However, I have been seeing the move c3 after c5 a lot. How can I ...
Ryley's user avatar
  • 416
-2 votes
1 answer
150 views

What’s my best move here?

I ask regarding for this position below. [Title "White to move"] [fen "5r1r/1p6/p1p2p2/2P1bPpk/4R3/6PP/P2B2K1/3R4 w - - 0 1"]
user35935's user avatar
0 votes
1 answer
222 views

What's wrong with the way white is playing?

I have played an opening I can't find anywhere online. So I'm guessing it's wrong. Can someone tell me what are the weaknesses in white's strategy? Or is it simply a matter of black not being able to ...
More Anonymous's user avatar
1 vote
1 answer
105 views

Why is Nf6 a blunder here?

With Nf6, I'm trying to bring my Knight out. If the Bishop takes it, I can take the Bishop with by g7 pawn. Why is this a blunder?
csmathhc's user avatar
  • 179
1 vote
4 answers
159 views

Why is Nh6 a mistake here? Why is Nf6 the best move?

I'm analyzing this game between me and Stockfish Level 1 on lichess.org: https://lichess.org/0SvUBEu0/black#4 With Nh6 I was trying to counter a possible Bxf7+. Without Nh6, the King would have to ...
csmathhc's user avatar
  • 179
1 vote
2 answers
149 views

Why is Qe7 a blunder here?

I'm a chess beginner. I played this game against Stockfish and according to Lichess' analysis, Qe7 was a blunder here, and the best move actually was c6. I can't understand why? [Title "Why is ...
csmathhc's user avatar
  • 179
3 votes
1 answer
213 views

Chess Tree Visualization Tool (no engine or database needed)

Looking for a Good Visualization Tool I am looking for a good tool to use for visualization of the game tree and for exploration of variations during correspondence games. The tool would need to ...
Dave's user avatar
  • 347
0 votes
1 answer
96 views

Rooks obstructed by pawns; how to give chessmate?

I played Black in 5 minute game, and reached this position with one minute left. White moved its bishop close to my knight. I played knight takes knight, the white pawn took my knight. However, due ...
Massimo's user avatar
  • 117
0 votes
0 answers
137 views

Unique checkmates count analysis

How many unique checkmates are there from this starting position? I can only see 5 lines on lichess from a game I've played and have tried several different moves. Mate in 4 is the fastest but I've ...
charles2239's user avatar
0 votes
0 answers
83 views

Tools to study positions with partial information?

TL;DR Is there a chess engine or other tools to study a "position" where the exact location of certain pieces is not known? From the following chess position, a plan could be to win the a2 ...
FxMySz's user avatar
  • 1
1 vote
1 answer
192 views

Why is this the best move?

I was just reviewing my game and was wondering why the AI would think this is the best move. All I see is giving white a free knight.
Ann-qui's user avatar
  • 19

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