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 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 ...
xaisoft's user avatar
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57 votes
8 answers
34k views

How would you determine that the player is cheating in online chess?

There are a lot of online websites, where players can play chess in real time with each other. Most of the games are 5-10 minutes long. With the availability of chess software one can take an ...
Salvador Dali's user avatar
48 votes
6 answers
5k views

Strategy in middlegame from boring positions

I get into these rather vanilla, or as I call them, boring positions. Not much is happening tactically, and I can't fathom what the right course of action should be strategically. Here is an example....
YoungMoney's user avatar
43 votes
4 answers
5k views

Is this endgame (sort-of Q vs K) a draw?

I think the following endgame is a draw. [FEN "7k/5BpP/3K2P1/8/8/8/8/4q3 w - - 0 1"] My reasoning: I'm playing white. I will only move my king, always. Black's king cannot move. If the queen decide ...
Pedro A's user avatar
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42 votes
12 answers
29k views

Is there any free software to automatically analyze and annotate games?

I'm looking for free software that automatically analyzes and annotates chess games (post-mortem), preferably marking blunders, suggesting good alternatives, pointing out missed tactics (forks, pins, ...
Hugo Sereno Ferreira's user avatar
32 votes
2 answers
3k views

How computers have changed the way humans play chess

A few years ago Vishy Anand mentioned in an interview that computers had changed the way humans play chess. Obviously computers help a lot in opening preparation, but what other concrete examples are ...
user1583209's user avatar
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31 votes
7 answers
6k 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". ...
Derek Allums's user avatar
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27 votes
10 answers
6k views

Why struggle for a single pawn?

I've seen many chess games, where after a certain point, one side maneuvers their pieces (like doubling the rooks) to target a single point. Most of the time it's a pawn on the wing and the other side ...
bretlee's user avatar
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27 votes
3 answers
9k views

What is the worst opening move in Chess960 for White?

Is there a first move for white in Chess960 in which white can immediately blunder a piece or lose a significant advantage (say -2.0 or so)?
kevin jumbo's user avatar
27 votes
1 answer
9k views

Can a knight move through all squares from its original position?

I'm so confused about this. I googled it and read about knight's tours, however they all start from illegitimate positions. I want to know if a knight can move through all squares from its original ...
Huy Mai's user avatar
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27 votes
2 answers
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 ...
stevec's user avatar
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26 votes
2 answers
4k views

Why underpromote in this KNNP-KR endgame?

In the position below, I'm promoting my pawn. The app says promoting to a Queen is incorrect, but a Rook is correct? In this setup it doesn't make sense. [FEN "8/1P6/3N4/8/8/3k4/r7/4KN2 w - - 0 1"] ...
Frank's user avatar
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25 votes
7 answers
3k views

What proofs for refuted gambits are there?

I've stumbled upon this article a while ago, and I've also seen refutations for the Muzio Gambit (Joseph Kling & Bernard Horwitz - Chess Studies on Endings of Games). I'm wondering what other ...
Valentin Brasso's user avatar
24 votes
3 answers
9k views

Why does chess.com consider this promotion a blunder?

I've just played a game on Chess.com, and I'm surprised that the engine considers a promotion that I made a huge blunder. Like, my position was rated -62.8 (basically a won game), and after I promoted ...
Fabio says Reinstate Monica's user avatar
24 votes
3 answers
6k views

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

Given a FEN board position, is there an algorithm that can return a PGN move list that evaluates to it from the standard initial position?
2080's user avatar
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24 votes
1 answer
3k views

Please help solve this endgame problem posed by a friend

[FEN "5K2/k7/4P1p1/8/8/8/4b3/8 w - - 0 1"] A friend of mine is challenging me to find a solution. It’s White to play and DRAW.
knowellm's user avatar
  • 249
24 votes
2 answers
1k views

Do Grandmasters think using algebraic notation?

Is algebraic notation used just to communicate chess moves in written and spoken form, or should players strive to use it during their thinking process as well? In Dan Heisman's excellent The ...
Nick's user avatar
  • 1,847
24 votes
2 answers
2k views

Does white really have a win in this pawn ending, as claimed by Tim Krabbé?

Update: ​ ​ ​ ​ I emailed Tim Krabbé, and he agrees that ​ 41. b4 bxa4 ​ draws. He has posted a PS about this just under his old analysis. With respect to "Skawinski - Tomczak, European ch rapid, ...
user avatar
22 votes
7 answers
4k views

How can one improve their over-the-board analysis skills?

I think of analysis as the ability to mentally move through variations, recognize tactical ideas in those variations, and draw accurate conclusions regarding the fitness of the resulting positions. I ...
Robert Kaucher's user avatar
22 votes
1 answer
4k views

Why underpromote? Hjartarson vs Andersen

Chess.com - Praggnanandhaa wins 2022 Reykjavik Open: he missed a unique underpromotion to a bishop as the only move to win the position Why does a Queen promotion not win him the game?
James's user avatar
  • 339
22 votes
2 answers
3k views

Why is ..Kh8 so much worse than ..Kg7 after Nf6?

I just "failed" this Lichess exercise. Main line is Stockfish's, secondary is mine's. [FEN "r5k1/3N1p1p/2p1p1pb/3pP3/p2P3q/5P2/PP2QP1P/R4RK1 b - - 2 19"] 1...Bf4 2. Nf6 Kg7 {-5.4 ...
walen's user avatar
  • 638
21 votes
8 answers
9k views

Chess PhD topic in machine learning?

I searched this online and couldn't find sufficient answers. Is there a topic in chess that includes machine learning and would be sufficient for a PhD thesis? I was thinking of utilizing a CNN that ...
lbragile's user avatar
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21 votes
2 answers
7k views

What is the deepest Stockfish evaluation of the standard initial position that has ever been done?

Letting Stockfish (14+ NNUE) run for several minutes with lichess' analysis tool on the initial position of a standard chess board lets it reach depths beyond 30 moves, I suppose letting it run for ...
2080's user avatar
  • 906
21 votes
7 answers
64k views

Free online analysis engine?

Is there an online analysis engine that allows you to enter a PGN and get a game analysis, showing where suboptimal moves were made? I know there are programs for download/purchase that do this, but ...
TKR's user avatar
  • 505
21 votes
2 answers
5k views

The Game of the Century - why didn't Byrne take the rook after he forked Fischer?

I'm guessing that there's a pretty simple explanation for this, but I can't seem to see it. [White "Donald Byrne"] [Black "Robert James Fischer"] [fen ""] 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 O-O 5....
Brandon_J's user avatar
  • 2,214
20 votes
4 answers
5k views

Why do chess engines sometimes miss good moves (or take forever to spot)?

It is not the first time that I found a greatly superior move than the chess engine did, it even takes them a while to understand these moves after you make them. For example, the move 15 ... Bf2 in ...
ajax333221's user avatar
  • 3,138
19 votes
12 answers
8k views

Why does a knight combine better with the queen than a bishop does?

From this question, the couple queen + knight is strong in attacking the opponent's king. I searched why the knight combines better than the bishop with a queen, and all I could find, from this ...
user avatar
19 votes
7 answers
3k views

How to play for a draw

In this video: Levon Aronian vs Magnus Carlsen Round 1 - 2013 Candidates Chess Tournament [FEN ""] 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Bxd2+ 5.Qxd2 And now, Kevin said: "You can tell that the game is ...
Lynob's user avatar
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19 votes
2 answers
3k views

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 ...
Laska's user avatar
  • 11k
19 votes
4 answers
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 ...
bpw1621's user avatar
  • 301
18 votes
7 answers
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... ...
walen's user avatar
  • 638
18 votes
6 answers
4k views

What thought process should one use to find candidate moves?

Do you have a thought process for finding candidate moves? Once you find all possible candidate moves, how do you narrow it down to your final choice? Regarding the process, do you have a ...
xaisoft's user avatar
  • 16.7k
18 votes
1 answer
3k views

Stockfish is considering a move in a book by GM Mihail Marin as a blunder

In the book English opening volume 1 by Mihail Marin at this position [fen "3nrrk1/bppq2p1/p4p1p/2Pp4/1P1P3N/P1BQ2P1/5PKP/4RR2 w - - 2 21"] 1. Qg6 (1. Ng6) He suggests Qg6 whereas ...
Shreyash Talpade's user avatar
18 votes
4 answers
3k 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 ...
alecxe's user avatar
  • 257
18 votes
3 answers
1k views

In Spassky v Fischer '72 game 11, why is 14. Nb1 considered such a great move?

In game 11 of the 1972 World Championship, Spassky as white moves his Knight back to its 14. Nb1 starting position. Apparently, this moved was received as 14. Nb1!!. But to me, it seems as a simple ...
corsiKa's user avatar
  • 503
18 votes
6 answers
3k views

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 ...
Aloizio Macedo's user avatar
18 votes
2 answers
1k views

Is game analysis based on "squares" instead of "pieces" of any value?

Most all analysis I've seen in chess focuses on pieces development, and not the development of unoccupied spaces. Is there any value in analyzing game play in this way, and if so, how is this done? ...
blunders's user avatar
  • 4,137
17 votes
3 answers
3k views

Why can a chess move improve the chance of winning, according to the computer?

When watching the Sinquefield cup on http://grandchesstour.org/, it is possible to try different moves qnd see how the computer evaluates the position after your suggested move. Most moves will ...
jonasfh's user avatar
  • 273
17 votes
5 answers
12k views

Understanding vs. Memorization

Is memorization necessary in modern chess? Whenever I play chess, I always run out of time because I move slowly in the opening; unlike others who move fast in the opening because they have memorized ...
kjames's user avatar
  • 433
17 votes
3 answers
8k views

What was the point of Shirov's 47...Bh3?

One of the most famous moves ever is Shirov's 47...Bh3!! in Topalov - Shirov, 1998. [FEN "8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47"] [Event "Linares"] [Date "1998"] [White "Veselin Topalov"] [Black ...
RemcoGerlich's user avatar
  • 27.8k
17 votes
2 answers
3k views

Analysis of positional play by a very aggressive player

After checking that it was okay to seek analysis on this site, I decided to post this recent game against a 1950 (I was white, 1650) with post-game annotations (forgive my excess rambling). I think it ...
chubbycantorset's user avatar
17 votes
3 answers
758 views

Anand - Gelfand 12th game in World Chess championship 2012

I have been following 12th game in World Chess championship 2012, and I just could not understand why a draw was offered. Is it that they can see 10 or more moves ahead and think of the ending or is ...
Srikar Appalaraju's user avatar
17 votes
1 answer
941 views

Can this exchange-down endgame be explained succinctly?

I am interested in the following exchange-down endgame (assume White to move): [fen "6k1/5ppp/8/8/1r6/5KP1/5P1P/5B2 w - - 0 1"] In particular, I am wondering whether this is objectively drawn (my ...
ETD's user avatar
  • 23.4k
16 votes
13 answers
6k 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 ...
SilverlightFox's user avatar
16 votes
1 answer
4k views

Why did white sacrifice knight in this Nimzowitsch's 1905 game?

Saw this image in a WhatsApp group. Initially it looks attractive with a possibility of a "smothered mate", but I am unable to find out if white can really survive for several variations. [...
iammilind's user avatar
  • 638
16 votes
2 answers
4k views

Is this endgame position a theoretical win or draw?

The following tactics problem comes from ChessTempo, and was taken from a game between Anatoly Karpov and Alexey Kuzmin. It's white's move. The idea of the problem is to find white's best move from ...
Mark Byers's user avatar
  • 1,649
15 votes
4 answers
2k views

Why should the knight maneuver to d5 in this position?

In How to reassess your chess from Jeremy Silman there is this position about knight outposts: [FEN "2r2rk1/pbqnbppp/1p3n2/1Pp1p3/2P1P3/5NP1/PBQN1PBP/R4RK1 w - - 0 1"] The author argues ...
iaquobe's user avatar
  • 253
15 votes
4 answers
3k views

The difficulty of finding the winning idea in this knight versus bishop endgame

I recently finished a tournament game on chess.com as Black that ended in a draw. It was a knight (me) vs. bishop endgame with pawns strewn across the board. Here is the entire game. [Title "...
Rewan Demontay's user avatar
15 votes
5 answers
5k 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 ...
javatutorial's user avatar
  • 2,939
15 votes
5 answers
13k views

"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 ...
Dheebs's user avatar
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