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Questions tagged [analysis]

Questions related to determining the Truth behind positions. This includes who is winning, what the next move should be, and what happens when a certain move is played.

3
votes
2answers
611 views

What is the most suitable position for a bishop here?

Recently I played a game with White whose link is: https://lichess.org/pAoAUp4O/white#42 and reached this position: I am having a hard time finding why the moves I played next (22. Rxe8+? Rxe8 23. ...
7
votes
2answers
396 views

Did Richard Teichmann fail to take his “bishop pair” idea to its logical conclusion?

Playing Black in a game against J.R. Capablanca, Richard Teichmann accepted an isolated queen pawn as the price for getting a bishop pair On move 20, White played Nf5, attacking his black squared ...
2
votes
0answers
133 views

Adventures in the ODCL Pt. 2 - How about this endgame?

Another week, another match, and this time as Board 2 for the second team instead of bottom board for the firsts. Background: In the review my rating has gone up slightly to 142 ECF (~1765 Elo). My ...
2
votes
1answer
147 views

What is this opening/position called, and what is white’s best move?

[FEN "r1bqk2r/pppp1ppp/2n2n2/2b3B1/4P3/8/PPP2PPP/RN1QKBNR w KQkq - 0 1"] Do you know the name of this opening/position? Additionally, please tell me what white’s best move is in this position. I ask ...
1
vote
3answers
128 views

Is this KBPP vs. KR position a draw or a win with perfect play?

I played a game on Lichess today as white, and me and my opponent reached this interesting endgame position. Note: It is black’s turn currently. The board is shown from White's point of view. [Title ...
12
votes
2answers
557 views

Why do professional chess players point at the pieces with a middle finger?

I've recently heard and then actually started to notice more and more that professional chess players tend to use a middle finger when pointing at pieces on the board like in this Anand vs Caruana ...
6
votes
2answers
84 views

How to evaluate and comment moves in PGN format?

I want, with Python-chess, to evaluate any movement of some game and generate the PGN with analysis, as Chess.com does in its analysis. For example, i played one game with fools mate and they ...
3
votes
3answers
684 views

Why was castling bad for white in this game, and engine strongly prefered trading queens?

I'm a novice player, trying to improve. In the following game I played as white recently on chess.com, I analysed afterwards and my worst move of the game was apparently when I castled. The engine ...
2
votes
0answers
197 views

Is this a sound elephant offer?

In the following dobutsu shogi position, is Gc3xc2 a bad move? ABC +---+ 1| | g 2|lce| 3|E G| 4| L | *C +---+
-2
votes
1answer
124 views

Why did the (Black) computer play 9. … Ke7 here?

Not having played chess in ~5 years, I started playing against the computer on my phone at ELO~800 (I've since reached ~900). I do not know what engine the app uses (Chess for iPhone by Mastersoft Ltd)...
4
votes
3answers
315 views

Was this sacrifice a good one?

Upon reviewing a game I played. I started to feel bad about exchanging my attacking bishop for my opponent’s useless one. But I believe that I had no other choices. I want your opinion about what I ...
3
votes
1answer
270 views

Can anyone analyze my game and mistakes?

I've been learning chess for a while, and I’ve tested my skills in online chess. I make lots of blunders in my games, but people who I ask can't seem to see them, including myself. Here is a recent ...
5
votes
1answer
163 views

Why is 6. a3 a mistake compared to Qa4+?

I played a game on lichess recently. Afterwards, I used the analysis feature, including the "learn from your mistakes" feature, and it said that 6. a3 by white was a mistake, with 6. Qa4+ as best. I'd ...
-1
votes
2answers
165 views

Why is it a mistake to trap this bishop?

In the below position, I played pawn from g7 to g5, trapping the white bishop. The computer didn't like that at all, and gives white a huge advantage. Instead, it wanted me to just simply develop my ...
9
votes
8answers
2k views

Bishop vs Knight

I read in a book write by Fischer about piece values, and he said that a knight value 3 pawns, and a bishop values 3,25 pawns. I know that in the close positions knights are better, and I also read in ...
7
votes
0answers
1k views

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 ...
5
votes
3answers
185 views

Poor gambit for white

I was white and played this against a 1589 rated player on Lichess. The gambit happens at move 10 and it is characterized as a blunder by stockfish analysis. However, black does some inaccuracies and ...
4
votes
3answers
2k views

Stockfish's algorithm [duplicate]

I'm trying to understand how Stockfish thinks, how it calculates the best move. I'm reading open source code, but it's not clear. I want to know, should I know some theory about algorithms to ...
59
votes
12answers
14k views

How do I analyze my game after playing?

What techniques do you use to analyze your games or other people's games? How much time do you spend on analyzing the game? Are there any tools (electronic or manual, such as a piece of paper) you ...
8
votes
4answers
2k views

Reason why a kingside attack is not justified

Given my lead in development in this game, the presence of an advanced pawn on the 5th rank and the arrangement of the pieces toward Black king, I think that an immediate kingside attack is justified. ...
9
votes
2answers
2k views

Why is c4 a better move in this position?

The computer analysis on a game I played tells me that in the following position, White should have played c4 instead of e5: [fen "r3qrk1/pppb1ppp/1nn1p3/6B1/3PP3/P1P2N2/4BPPP/R2Q1RK1 w - - 0 1"] ...
2
votes
2answers
126 views

Is there any software that will analyse games offline?

Usually I use Lichess to analyse games, but sometimes I am offline. Is there any software with the capability of providing offline computer analysis, giving the rate of inaccuracies/mistakes/blunders ...
4
votes
2answers
499 views

What did I blunder at move 23?

I played a game recently on chess.com, where the most detailed analysis identified a single blunder in the game -- 23. d6 The analysis given by the computer suggested that 23 Qd1 was better, with the ...
4
votes
1answer
119 views

Why didn't Spassky play 26. g3 in game 5 of Fischer-Spassky (1972)?

Fischer's play was powerful in this Nimzo-Indian, achieving a strong knight against two bishops in a closed position. The knight became a monster on f4. But why did Spassky let the knight reach f4? ...
7
votes
4answers
1k views

What does it mean when engine position scores change when following the “best” move

I'm particularly thinking of Stockfish here, since that is the one I use most, but it seems to happen with other engines. Sometimes you have a position and the recommended move for white might be +1....
13
votes
4answers
3k views

When are pieces worth more (or less) than their nominal value?

Which are the most common situations in which pieces are worth more/less than their value, in point? For example, I know that a protected Knight on 6th rank (3rd for Black) of columns d and e may be ...
2
votes
3answers
279 views

What can I learn from my “80 average centipawn loss” game, which I thought I played well?

In a LiChess game (Vakeesh vs. becky82), during the game I thought I played well, and won as black without and real complications. Here's the game: [fen ""] [Event "Rated Classical game"] [Date "...
28
votes
7answers
5k views

Would studying the games of old players hurt my progress?

I was watching a video last night by Ben Finegold on Paul Morphy and some of his games. He mentioned that some current GMs would discount Morphy's ability since all of his opponents were "terrible". ...
3
votes
1answer
166 views

Reason why Kasparov resigned in the “Enrage the Beast” game

[White "Garry Kasparov"] [Black " Vassily Ivanchuk"] [fen ""] [StartPly "62"] 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 b6 5. a3 Bf8 6. Nf3 Ne7 7. h4 h6 8. h5 a5 9. Bb5+ c6 10. Ba4 Nd7 11. Ne2 b5 12. ...
0
votes
1answer
62 views

Is any tool which allow analyse EPD file and add evaluation score per I want specify depth/multi PV

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 ...
9
votes
2answers
440 views

Three Pawns for a Knight - Why Doesn't Stockfish Like it?

In a recent game I swapped off a knight for 3 pawns: [Event "County Match"] [Site "Deepest Darkest Southern England"] [Date "2018.01.20"] [White "English Player"] [Black "Ian Bush"] [Result "0-1"] [...
1
vote
1answer
53 views

Questions about the beginning of this game

[Event "Live Chess"] [Site "Chess.com"] [Date "2018.12.29"] [White "Leon_Likes_Chess"] [Black "SmojLee"] [Result "0-1"] [ECO "B47"] [WhiteElo "1625"] [BlackElo "2310"] [TimeControl "600"] [EndTime "14:...
5
votes
1answer
131 views

Which is better in the Rossolimo Sicilian, 3… e6 or 3… g6?

[FEN ""] [StartPly "5"] 1.e4 c5 2.Nf3 Nc6 3.Bb5 In this opening is it better to do e6 to activate the dark square bishop which will protect c5 pawn. If the opponent plays Bxc6, it will have a ...
2
votes
1answer
58 views

Bronstein vs Winter

In this game, http://www.chessgames.com/perl/chessgame?gid=1365631 The engine says that 20. Na5 is a blunder. However, I fail to understand why it is. Also, I am surprised at White's choice of moves ...
2
votes
2answers
164 views

Is this a smart draw offer?

[Event "Live Chess"] [Site "Chess.com"] [Date "2018.12.27"] [White "SergioRamos2"] [Black "SmojLee"] [Result "1/2-1/2"] [ECO "B57"] [WhiteElo "1640"] [BlackElo "2175"] [TimeControl "600"] [EndTime "10:...
3
votes
2answers
170 views

Analyzing using Chess Engines - Giuoco Piano/Steinitz Variation

[FEN ""] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. bxc3 d5 10. Ba3 dxc4 11. Re1 Be6 12. Rxe4 Qd5 13. Re3 O-O-O 14. Ne5 Nxe5 15. Rxe5 Qxe5 16. dxe5 ...
0
votes
2answers
327 views

Make chess great again [closed]

Chess at the highest level has changed a lot perhaps helped by computers, so that nowadays we have: black often playing for a draw GM analyzing some opening lines all the way to the endgame opponents ...
5
votes
2answers
177 views

Why doesn't white play Bd2 after this …Qa5+?

I was looking at an analysis which shows this position ( from Bacrot - McShane 2018). At this point Black just played ...Qa5+, and the only moves that are analyzed for white are Kf2, c3 and Qd2. This ...
6
votes
2answers
406 views

Question about the move h5

I recently played a chess game whose link is: https://lichess.org/pCFw1h2w/black#5 After running a computer analysis, I found that in this position: I know that even though Stockfish does not tell ...
16
votes
8answers
7k views

Why is Carlsen being praised for his tie-break play, when Caruana made several game-losing moves?

I followed the three games live on chess24.es (for live commentary from GMs) and chess.com (for actual real time computer analysis). As per my understanding: Game 13 was mostly balanced until 19... ...
4
votes
1answer
535 views

Is there any analysis of the Carlsen-Caruana World Championsip match by AlphaZero?

How cool would it be to have the world's most powerful computer analyzing games played in a match between the world's two strongest human players? Has it happened yet and is the analysis available?
8
votes
2answers
2k views

software to analyze my own database of games with statistics

I've been playing on lichess.org for my online games, and is the primary way I enjoy chess. One of the big reasons why I started playing on lichess.org was that they offer a simple way to export your ...
4
votes
2answers
164 views

Endgame analysis : white to play and..?

R3nk21B1K4/4r3/4P3/3Pb3/8/3P4/8/1B1K4 w - - 0 1 White to play and ?, D.Antonini 09/2017 I wouldn't qualify this position as a study, at least according to modern canons for study composition, as ...
2
votes
2answers
270 views

Website that decode chess moves?

I am a complete beginner and have started learning chess one month ago. I play online on lichess.com. I lose a lot of games which is understandable too. Many people advised me that I should analyze ...
16
votes
4answers
2k views

Who has the advantage at this point in the game?

I was playing the following game and at this point I thought black had the advantage but upon thinking about it for a little while was not sure. At this point in the game who has the advantage and by ...
0
votes
1answer
101 views

Decent Playing Strength Chess Engine

I'd like to make a chess program to play decent strength chess (say around 2100 ELO). What are the factors in Eval & techniques in Search that one would consider to achieve that rating?
12
votes
10answers
3k views

Is there a single best move in every position?

If it were possible to analyse every possible outcome of a position, would there ever be a single move that could be considered "best"? I know that this is how computers evaluate positions, but they ...
2
votes
3answers
154 views

Database program for statistics about mistakes

I wonder if there is an application that will help with statistics for my own games. Of course - there are applications (eg. Scid, Chessbase) that allow to make some statistics out of database - but ...
8
votes
5answers
6k views

How to automatically evaluate a player's performance in a game?

Suppose I have a completed game. I don't have Elo ratings of the players. My purpose is to evaluate a player's performance in the game based solely on his moves. Can this can be done automatically ...
5
votes
3answers
251 views

confused about a move played by a grandmaster

In this site : https://www.365chess.com/game.php?gid=2941895 I saw a game between two chess professional players : Efimenko, Zahar (2566) vs. Kaliuzhny, Andrey (2213) [fen ""] 1. e4 d6 2. d4 Nf6 3....