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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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 ...
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Can a king capture a piece that is protected by another piece even if that piece is pinned to its own king? [duplicate]
I was doing a Chess puzzle that I don't understand. The puzzle starts with pieces at locations as follows:
Black King E1
Black Pawn E2
Black Rook D1
White King E4
White Rook E6
The puzzle then moves ...
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Best Repetoire Building Tools
I want to build an opening repertoire manually.
what are the computer tools to do that?
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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 "...
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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 ...
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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 ...
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What is the status for EIGHT piece endgame tablebases?
An earlier question here asked in 2012 about the status of 7-piece tablebases. Today complete 7-piece tables are widely available.
So today, what is the status of 8-piece endgame tablebases?
How ...
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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 ...
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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 ...
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Is the following position a fortress?
[FEN "8/4k2p/p1b1p1pP/Pp1p2K1/1PpP1P2/2P1R3/8/8 b - - 0 1"]
Houdini6.02 eval flatlines at 1.37, but I reached d= 54 , and , although the eval continued to flatline, the main line indicated ...
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How do I trap the queen once it pins my rook?
I am playing as Black in this game, and after 10. Qg4, I realize that White wanted my rook. I knew I could trap the queen once it went for the rook (11. Qxg7), but I forgot how. I went on to win the ...
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"Brilliant Move" - Chess.com - But Why?
I was playing a tournament on Chess.com and received a "Brilliant Move" in the post game analysis. I haven't received this before and was curious of the following.
[FEN ""]
1. d4 ...
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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 ...
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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 ...
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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 ...
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UCI engine command white giving the same move
I need help from someone who knows about UCI engines. I am giving the command by double clicking on stockfishengine.exe and manually entering commands.
I wanted to play white and I am running arena to ...
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1
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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"]
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In what ways is it the best to use a computer in correspondence chess?
I have only recently started correspondence chess and I have
read that engines are allowed in correspondence chess. I definitely do know that the world champions of correspondence chess have said ...
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Is there an online chess evaluation engine with a REST API?
Is there an online chess evaluation engine with a REST API? I'd like to be able to send a game or position (with castling ability presumably) to a simple REST API and get back the positional ...
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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 ...
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What are some good endgame books?
I know some people have asked about general good books or middle game books. But I read someone said that the best way to start learning chess is by studying endgames, so I ask: What are some good ...
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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 ...
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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?
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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 ...
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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 ...
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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 ...
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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 ...
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How to run lichess stockfish analysis locally?
I am working on a research project where we need to run stockfish on hundreds of thousands of pgns we have collected. We need to extract all information generated from stockfish like centipawns, ...
CommunityBot
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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 ...
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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.
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Why did I lose -> I thought I can swap king and castle to avoid checkmate? [duplicate]
[FEN "6nN/Bp1k2pp/2n5/p7/Q4R1P/5pP1/P3qN2/4K2R w K - 0 1"]
As you can see my king got checkmated through the enemy's queen and pawn.
My question is, why is this a checkmate? I haven't moved ...
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What are some good podcasts to listen to?
I'm an intermediate player, and I practice chess tactics and play regularly. I'm looking for a good podcast or two to listen to during my day. I don't care if it's a podcast that discusses chess news, ...
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Endgame - pawnless Queen + Rook vs Queen
Today, when I was playing end game I had a queen, a rook and a king (no pawns). My opponent had just a queen. It was his turn (the board was pretty blank) and he started giving continuous checks. I ...
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What's the fastest way to detect blunders with an engine?
My main goal is to detect blunders in chess games.
I wrote a python program that loads a large pgn database and then analyses the games. I did it by letting Stockfish go through every game and every ...
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Is it possible to put special pieces on a chess.com custom board?
I would really like to create custom positions with custom pieces (and maybe even variants) to play with my friends because we have always enjoyed playing custom variants. So for example a board with ...
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Are these depth-41 Stockfish evals the result of a horizon effect?
I was using lichess's analysis board for Stockfish's analysis of this line in the French:
[Title "French Defence, Steinitz Variation"]
[StartFlipped "0"]
[fen ""]
1. e4 ...
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Is 2. c3 the best response against the Caro-Kann?
On chess.com, I was playing as White and my opponent played the Caro-Kann. I personally like the accelerated Panov Attack, 2. c4, but my mouse slipped and I played 2. c3. I was very mad when I did ...
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Is any tool which allow analyse EPD file and add evaluation score per I want specify depth/multi PVL?
I tested some tools which allow analysis EPD files but they not work like I want:
I can use Arena but it will not annotate back EPD - it create protocol file.
I can use SCID vs PC but it will not ...
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Why do these convergent lines evaluate differently?
I recently analyzed alternative lines for this puzzle on chess.com.
[Event "French Championship"]
[Site "Val d'Isere FRA"]
[Date "2002.08.23"]
[Round "5"]
[...
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Why does GM Larry claim that this sacrifice is brilliant?
On this webpage GM Larry Kaufman claimed (at least up to 2012) that the following move was brilliant:
[Title "Kasparov vs Shirov (Horgen 1994)"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/...
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Where does the queen go in the Ponziani with 5 ..?
Consider this line
[Title "Ponziani"]
[fen ""]
[Startply "14"]
1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d4 Nxe4 5. d5 Bc5 6. dxc6 Bxf2 7. Ke2 Bb6 8. Qd5 (8. Qc2) Nf2 9. Rg1 ...
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Why is this a “Brilliant Move”?
I don’t understand why chess.com says this is a “Brilliant Move”? Can someone explain please?
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Winning position after move one?
Question: There are 400 possible two-ply openings; that is, positions that can arise after each player has made one move. Which of these positions, if any, are winning (either for white or for black)...
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Computerized Chess games Analysis
I am looking for the ultimate chess game analysis tool
I used lucas chess which is great but lack some details, I also tried creatica https://chessgame-analyzer.creatica.org/ which is good also but ...
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How to limit lines in scid vs pc in annotate mode?
I would like to reduce the number of lines calculated by the engine to speed up the analysis but I cannot find the appropriate option for that. Does anybody know how to do this in Scid vs PC?
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Black to play and win but why was the move played a blunder?
In the position below Minic just had to play one move to reach the time control and, in those days, the adjournment which would have given his team a chance to find the win. Unfortunately he blundered ...
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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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"Unclear" becoming outdated?
It was the Chess Informant who gave us "∞ - position unclear" (as we all know, a position can only be won, lost or drawn ;-). Now that we have super-strong computers, I expect that ∞ will ...
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Is there a list of chess openings online without names
I have been searching for a list of eco (Encyclopaedia of Chess Openings) chess openings online by moves rather than by name so that I don't have to sort through thousands of names but I can not find ...
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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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