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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.

0
votes
2answers
84 views

Why do engines run faster if you only have one line of analysis open?

When I load up an engine (like Stockfish), it reaches a higher depth quicker if I only leave one line of analysis open. If I leave multiple lines open, it runs slower. Why is this?
22
votes
1answer
7k 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 ...
2
votes
1answer
81 views

What are the strategies of Alphazero?

Alphazero is an amazing chess engine, one of the best in the world. It also has a more "human" playing style than other engines. Furthermore, understanding this engine might be vital to improving the ...
3
votes
5answers
194 views

How can a human figure out best move in this position?

Why is 12. b4 played by a GM? Why doesn't he just capture the bishop? And how can he forsee so far in the future? Am I missing something?
2
votes
3answers
55 views

How to package PGN in Lichess analysis page format

I am trying to bundle together a couple of games on my own website. I would love to have an interface like Lichess's analysis page: You can turn on the Stockfish engine, try out different moves and ...
-3
votes
1answer
111 views

Can you check my games? [closed]

I play mostly blitz and stick to a particular style (as black- stonewall +variations and as white just an f-pawn attacking style). It's pretty wild but I manage to surprise higher ranking players on ...
1
vote
3answers
101 views

Analysis of my recent King's Indian Defense game

I'm looking for any feedback on positional ideas I've missed on a recent KID game I played (as black). We were both about 1900 Elo, although I was slightly higher rated. I've obviously already ...
-1
votes
2answers
96 views

Moving a pawn to attack a piece on the 5th or 4th rank

I have not been able to tell why my computer sometimes tell me that advancing a pawn from its original square in order to kick an opponent piece is right and other times wrong. Take for instance, this ...
0
votes
1answer
77 views

Doubt about defending piece

I just played a chess ga,e whose link is: https://lichess.org/mn8mcGT7/white#15 And I reached this position after the seventh move of Black. I want to know why it is wrong to defend the piece with ...
0
votes
1answer
66 views

Chess players and compicated positions [closed]

Who are the best chess players of the past and present who create complicated positions and emerge as winners?
1
vote
2answers
104 views

Why I can not improve in chess & why I can not see the things? [closed]

Why is it that I can not improve in chess? When I lose a game, I feel very angry. I am always trying to improve so I played a lot, but I can not see any improvement. Please suggest me something.
0
votes
2answers
108 views

French (white) loss to a master - where could I have improved?

[FEN ""] [Date "6/16/2018"] [Round "7"] [White "Me"] [Black "Opponent"] [Result "0-1"] [WhiteElo "1874"] [BlackElo "2286"] 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Be7 8. ...
2
votes
2answers
129 views

Loss to a master, where did I go wrong? Two knights 4.d3 (black)

[FEN ""] [Date "6/15/2018"] [Round "6"] [White "Opponent"] [Black "Me"] [Result "1-0"] [WhiteElo "2248"] [BlackElo "1874"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Bb3 d6 7. c3 Bg4 8. ...
-4
votes
1answer
134 views

LICHESS analysis, why did it propose this outrageous move? [closed]

I was playing a game on lichess, and afterwards asked for a computer analysis, where instead of my perfectly fine move XX the computer insisted on another better move YY, why is that, how can I ...
2
votes
2answers
134 views

Is Bg5 a mistake or inaccuracy there?

[FEN ""] [STARTPLY "8"] 1. e4 e5 2. Nf3 d6 3. d4 Nc6 4. c3 Nf6 5. Bg5 h6 6. Bxf6 gxf6 7. Bb5 a6 8. Ba4 b5 9. Bb3 a5 10. O-O b4 11. a3 bxc3 12. Nxc3 exd4 13. Nxd4 Ne5 14. Re1 h5 15. h3 d5 16. Nxd5 f5 ...
10
votes
4answers
1k views

Why h4 is the best move here?

Is not bishop to e2 better? Why does the kingside has to be weakened like this? Thanks everyone for your answers. You all argue that the knight must remain on f4 so h4 prevents kicking it out. ...
2
votes
2answers
142 views

Why couldn't I win this Maroczy Bind (vs 2000)?

[FEN ""] [Date "6/10/2018"] [Round "5"] [White "Me"] [Black "Opponent"] [Result "1/2-1/2"] [WhiteElo "1874"] [BlackElo "2000"] 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. c4 Nf6 6. Nc3 Nc6 7. Be3 O-...
3
votes
2answers
69 views

Loss as black in 4.e3 English / rook ending

[FEN ""] [Date "6/10/2018"] [Round "4"] [White "Opponent"] [Black "Me"] [Result "1-0"] [WhiteElo "2383"] [BlackElo "1874"] 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Be7 5. Qb3 O-O 6. Be2 d6 7. d3 Rb8 8. O-...
2
votes
3answers
144 views

Strange 16-move semi-slav loss (black)

[FEN ""] [Date "6/9/2018"] [White "Opponent"] [Black "Me"] [Result "1-0"] [WhiteElo "2217"] [BlackElo "1874"] 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. e4 dxe4 8. Nxe4 Bb4+ 9. ...
2
votes
2answers
167 views

English/KID loss as white to a 2300+ player

[FEN ""] [Date "6/9/2018"] [Round "2"] [White "Me"] [Black "Opponent"] [Result "0-1"] [WhiteElo "1874"] [BlackElo "2332"] 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 O-O 5. e4 d6 6. Nge2 c5 7. O-O Nc6 8. d3 ...
7
votes
1answer
1k views

Why would trading this bad bishop be a bad move?

When running a game I played through the analysis engines, I get that my 12th move, 12.Ba3, was an inaccuracy (-0.3 -> -1.3). Since my center pawns are on dark squares, I assumed my dark bishop was a ...
2
votes
4answers
140 views

Where did I go wrong? QGD loss as black

[fen ""] [Date "6/8/2018"] [White "Anonymous"] [Black "Me"] [Result "1-0"] [WhiteElo "2146"] [BlackElo "1874"] [Opening "Semi-Slav Defense"] 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. cxd5 exd5 6. ...
4
votes
2answers
183 views

Disappointing Drawn Game Analysis

I recently played a not-so-good tournament, my US rating is a little under 1900, and this is a game where I had a draw against a 1600 player that reminds me of how I played when I was 1700. My ...
4
votes
2answers
154 views

Why sacrificing a pawn was more preferable over more materialistic moves in Nakamura vs Ding in Altibox Norway Chess 2018?

Why sacrificing a pawn in this situation, 19... h5 is slightly more preferable by engine over more materialistic g6 or Kh8? This is in fact what Ding chose to play actually. Obviously, this is to ...
6
votes
1answer
187 views

Why does Caruana kick Aronian's bishop?

Why does Caruana push 11.h3 against Aronian? [fen ""] [startflipped "0"] [startply "20"] [title "F. Caruana v. L. Aronian, FIDE Candidates 2018"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 ...
0
votes
1answer
110 views

What's the best move by white in this game?

In this game white must win. Please help me.
1
vote
2answers
82 views

Way to Logically Predict Approximate Chess Rating in Pop-Culture Games [closed]

After seeing a video of an analysis on the chess game in A Game of Shadows between Sherlock Holmes and Moriarty, it made me wonder what their fictional ratings would be around. Other games like the ...
5
votes
3answers
166 views

How can minimax chess engines do alpha-beta pruning without reaching the final positions?

In order to calculate far ahead, minimax chess engines must perform alpha-beta pruning, where they don't calculate positions that are obviously winning or obviously losing. Without doing pruning, ...
7
votes
2answers
190 views

How do chess engines evaluate a position if the position is in the middle of an exchange?

In the minimax algorithm, chess engines do a depth-first search as far as they can calculate ahead, and then evaluate all these final positions. Then, using these evaluations they work backwards one ...
11
votes
2answers
2k views

Why is White's “25. Bh4” considered a great move in Karjakin vs Kramnik at FIDE Candidates Tournament 2018?

I was watching Karjakin vs Kramnik at the FIDE Candidates Tournament 2018, Round 9, and simultaneously observing the chat feed at chess24.com, where people unanimously glorified the move 25. Bh4. Why ...
1
vote
2answers
77 views

How can I continue in this situation?

I am stuck for a move as White. Is there any way to go for a check-mate? I would take the black rook with my rook at d1 but would that be a bad decision?
12
votes
3answers
4k views

How to objectively explain a positional advantage is worth a sacrifice (re: a specific example)

I was given the below position in the US chess magazine. Author said this position is "hopeless for black". Lichess engine says 1.5 advantage for white. Why? I understand "piece points" are only a ...
4
votes
2answers
88 views

What service can be used to save and replay/analyze a chess match?

I've been starting to write down my chess matches in a scorebook, but would like to find a site where I can transcribe the match and then replay move by move by game to help me analyze what I did well ...
7
votes
1answer
162 views

In the Dubois-Steinitz match (1862), at what point does the match become irreversibly lost for White? And why does the engine not pick it up early?

I am a beginner player (~1400 rating on lichess). I was studying a famous match between Dubois and Steinitz shown below (analysis done by Stockfish on lichess.org). My doubts are: 1) At what move ...
4
votes
2answers
494 views

The principal variation is always wrong!

I read in an internet blog that when analyzing my games with an engine, it is often useless to copy the principal variation to my annotations, because (they say) it is well known that the principal ...
4
votes
1answer
122 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 ...
5
votes
4answers
245 views

Formulating a Precise Definition of “Space” in Chess

Premise I have always enjoyed playing recreational chess, so I know the basics and some general tactics / strategies. It was only recently though that I have gone more hardcore, so to speak, with my ...
-4
votes
1answer
96 views

What would be the estimate of the ratings of white and black in this game? Keep in mind, it's a rapid game [closed]

[Event "Rated Rapid game"] [Site "https://lichess.org/PuymBQf1"] [Date "2018.02.22"] [Round "-"] [White "chess_lover_2001"] [Black "potema"] [Result "1-0"] [FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/...
2
votes
6answers
260 views

Best practical chances after g5 forking knight and bishop

I am a beginner playing white and it's my turn to move. What is the best possible move in response to this fork? [title "Game position after fork:"] [fen "r1bqr1k1/ppp2p2/2n1pn1p/3p2p1/1b1P1N1B/...
1
vote
1answer
123 views

Engine recommends a move that (I think) loses a pawn

[FEN "rn2kbnr/ppp1pppp/8/3q4/3P4/8/PP2PPPP/1RBQKBNR w Kkq - 0 5"] If white doesn't play Ra1 then black can play Qxa2. But the engine says this is an inaccuracy, and that the best line is e2-e3.
7
votes
2answers
288 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"] [...
8
votes
1answer
890 views

Why are these weak squares important in this situation?

I'm watching a video on weak/strong squares. I think that I understand the concept, but not exactly why they are important in this game (Carlsen-Karjakin): The video explains how Carlsen maneuvered ...
3
votes
1answer
208 views

Chess dot com says this was my best move yet I don't have a clue why

Whites turn the analyzer suggests that my best move is Nxe5 I really don't see why as I would just be trading away my knight for a pawn I don't see why this would be a good move
4
votes
2answers
187 views

How to analyse an endgame quickly?

I am a relatively new player (less than 1 year, ungraded) but I feel I have made good progress so far. I am playing competitively with players in the 1300-1500 region and would like to continue my ...
1
vote
1answer
146 views

Is there a way that white can survive for six rounds in this position?

In the below position, black must win. Is there a way that white can survive for six rounds? I only know some ways that white can survive for five rounds as follow. 3b2rk/3P2pp/8/p7/8/2Q5/PP1pppPP/...
-1
votes
3answers
116 views

ECO A80 Dutch Defense game for Analysis

Embedded game was the one which I'd played some months back. As part of analysis, if this steps could get commented,- 1.d4 f5 2.Nf3 d5 3.e3 a5 4.Be2 h5 it will be better for a newbie to pick it up &...
7
votes
2answers
161 views

Why does ChessMaster recommend 24. Rg3 in this position?

I reached this position when playing against ChessMaster's cyber personality Laura. The engine recommends the line starting with 25. Rg3: [FEN ""] [White "Bad_Bishop"] [Black "Laura"] [StartPly "48"] ...
0
votes
2answers
174 views

Please critique my Engine game

Two of my engine's played against Garbo engine. (without a opening Book on my part.) Both lost :( Which played better? I need a comparative analysis. Both shared the same evaluation. frankenstein ...
2
votes
3answers
243 views

Are there any “underground” openings or gambits?

Playing a lot of blitz online, from time to time I meet quite strong players who regularly use very dubious lines that can have some shock or practical value in blitz or bullet chess, such as these, ...
6
votes
1answer
137 views

Continue the Attack, Or Meet the Positional Threat?

In the league last night the following position came up: [Date "2017.10.26"] [White "Ian Bush"] [Black "Not Ian Bush"] [Result "1/2-1/2"] [StartPly "28"] [FEN ""] 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5....