All Questions

Filter by
Sorted by
Tagged with
0
votes
0answers
4 views

What will happen if you have a position where no one can lose?

What will happen if you have a position where no one can lose? Here is my game I know it is live960 but I was wondering the outcome for a standard format chess game will it be draw because no one can ...
3
votes
0answers
51 views

Technique to draw this rook endgame

I'm familiar with the technique of drawing this endgame with White: [fen "8/R4pk1/6p1/7p/7P/6P1/p4PK1/r7 w - - 0 1"] However, I faced an endgame yesterday that's objectively a draw, but ...
14
votes
1answer
1k views

Can all 64 squares be attacked or defended by the eight pieces?

Can you place the eight (non-pawn) pieces of one color on an otherwise empty chess board, such that every square (including the squares that pieces are on), is attacked / defended? This is a problem ...
0
votes
0answers
30 views

some beginner books [closed]

My son is learning chess, some friends/teachers recommended these books: Chess: 5334 Problems, Combinations and Games by Bruce Pandolfini and László Polgár -- he is now at problem 340, still early in ...
0
votes
1answer
61 views

Chess engine in python

Are there any open-source chess engines that are written in primarily or fully in python? For example, Stockfish is written in primarily C++.
0
votes
1answer
152 views

Why did Bobby Fischer make his demands in the 1975 World Chess Championship?

Many topics ask about Fischer's demands in the 1975 World Chess Championship between him and Karpov, but I've never found the reason Fischer made these demands. In particular: If the result is 9-9, ...
-1
votes
1answer
109 views

My friend thinks the WCC has 14 games in a short amount of time with the purpose to induce player errors. Is that true at all?

For some reason, my friend believes that the format of the World Chess Championship is made in such a way with the purpose of increasing the amount of errors by the players. Is there any trutto this ...
6
votes
1answer
1k views

Is AlphaZero open source?

There are a lot of fake AlphaZero projects on GitHub. While I was googling if it was open-source, the answer in most places is yes, but I couldn’t find it anywhere. Is there a link to where the code ...
8
votes
1answer
2k views

Rules regarding food and drink during a world championship game

Game 6 in the world championship match between Magnus Carlsen and Ian Nepomniachtchi ran for 7 hours and 45 minutes. Apparently the players did not eat during that time. Chessbase India reports: ...
-1
votes
1answer
174 views

Andrea Botez asks world chess champion Magnus Carlsen 'How does the knight move?' after a game in the 2021 World Chess Championship

Recently, Andrea Botez asks world chess champion Magnus Carlsen 'How does the knight move?' in a press conference after a game in the 2021 World Chess Championship. It seems like such an obvious ...
3
votes
0answers
50 views

First World Championship game with symmetrical position and one file completely occupied?

After 8 moves in today's game between Carlsen and Nepomniatchi this position was reached: [fen "r2qk2r/pppb1ppp/3b4/3p4/3P4/3B4/PPPB1PPP/R2QK2R w - - 0 1"] The position is perfectly ...
1
vote
1answer
81 views

Is it computationally feasible to find a board with proven outcome, reachable in 2 plies?

As is well known, neither the 0-ply game, the starting state, nor 1-ply games, all of white's first moves, have rigorously proven outcomes. Not even first moves for white considered very bad (1. g4) ...
5
votes
2answers
1k views

Why is this position a forced mate?

I was playing a game against one of the chess.com bots, as shown below (I was playing as white). On analysing the game afterwards, I'm aware I made a lot of mistakes, but the one I'm really confused ...
0
votes
0answers
50 views

What did FIDE do/say in response to Magnus Carlsen's non-participation in the candidates match for the 2011 world championship?

In Why did Magnus Carlsen drop out of World Championship in 2011? we see magnus said After careful consideration I’ve reached the conclusion that the ongoing 2008–2012 cycle does not represent a ...
6
votes
2answers
712 views

Before Qe6 in game 6 of the 2021 World Chess Championship, was it really a draw?

In game 6 of the World Championship 2021 between Magnus Carlsen and Ian Nepomniachtchi, before Qe6 the engine says +0.9 at around depth 30/99, but I heard supposedly it's a (theoretical) draw. I know ...
4
votes
1answer
129 views

Distribution of Elo ratings

Danger! Only for math buffs! As we all know, Elo is Gaussian. In theory. Except it isn't. But my question is not about that distribution. Your Elo might also list a second number: the number of ...
-2
votes
0answers
32 views

Any statistics on whether queen endgames or opposite coloured bishop endgames are more drawish than rook endgames?

Quote: 'all rook endgames are drawn', 'All rook endings are drawn' or 'All rook and pawn endings are drawn.' For queen endgames, Karsten Müller even gives a way of visualising this (not quite Karsten ...
2
votes
1answer
68 views

How to evaluate whether a position will result in a draw vs a decisive outcome?

Suppose 2 positions both have 'equal' evaluations according to the engine, but the first position has strong, easy-to-spot moves which lead to a drawn endgame, whereas the second game is extremely ...
0
votes
1answer
79 views

What's the idea of 'all rook endgames are drawn' ? i think opposite coloured bishop endgames and even queen endgames are more drawish

Quote: 'all rook endgames are drawn', 'All rook endings are drawn' or 'All rook and pawn endings are drawn.' For queen endgames, Karsten Müller even gives a way of visualising this (not quite Karsten ...
0
votes
0answers
33 views

Best apps for chess openings [duplicate]

Can you recommend best chess apps for preparing openings? It is weakest part of my game and soon I will be playing my first local chess turnament. It would meant a lot to me! Also, can you give me ...
4
votes
1answer
354 views

How do I find good games to memorise for the openings I play?

I have read other questions like this and I find people responding "just doing tactics is less effort and helps more". But personally, I find it really easy to memorise things, so I'm ...
1
vote
0answers
26 views

Looking for a French exchange sub-variation where white castles long

I remember seeing a video a while back, which introduces this sub-variation to spice things up and to surprise black when they expect a dull draw game. I don't think it has a name, and I can't quite ...
-1
votes
0answers
74 views

Why so much fuss about a possible 20 c4 by Nepomniatchi vs Carlsen in Game 5? [closed]

Was there too much fuss about a possibile 20 c4 by Nepomniatchi in Game 5? After all , even after c4 , Stockfish 14 dev depth = 62 evaluates the position as +0.47 , that means a nearly certain draw. ...
14
votes
3answers
4k views

Why did I fail this puzzle?

I just failed a puzzle at chess.com, despite being 2 moves away from check mate. I am quite sure that there is no move I could have made to get check mate in 1 move, so I am wondering how I failed. I ...
6
votes
1answer
86 views

What is the point of 6...Ne8 in the f3 Nimzo?

4...O-O followed by 6...Ne8!? is a popular line in the f3 Nimzo at master level, but I'm still struggling to understand why it's played. [FEN ""] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3 O-O 5.a3 ...
2
votes
1answer
68 views

Has Explainable AI been applied to the endgame tablebases?

There's an ongoing trend towards building 'Explainable' AI so that not just the results of a decision process are generated, but also some form of human-readable explanation for it. The Wikipedia ...
-2
votes
1answer
58 views

"Strong ICCF players" What is your input into the game? [duplicate]

This question is directed to the experienced ICCF players. My question is basically what is the input that the human player has into the game. I was just wondering because with the use opening books, ...
13
votes
1answer
3k views

What are the advantages of keeping the identity of a second secret?

At the top levels of chess the identity of the coach/assistant is sometimes kept secret. What are the advantage(s) of this? I found: That mystery [second] turned out to be the intensely creative ...
11
votes
2answers
3k views

Wrong inaugural move in game 2 of Carlsen - Nepomniachtchi

In the game 2 of the current World Championship Series, the FIDE president Arkady Dvorkovich made the inaugural move, which differed from what Carlsen wanted the move to be. How does this exactly ...
3
votes
1answer
91 views

Books on old tournaments

I'm interested in books covering the major chess tournaments between 1880 and 1930, roughly speaking. I would prefer the official tournament books, like this one, but translated in English. Can I buy ...
8
votes
3answers
3k views

What is the difference between a waiting move and zugzwang?

I can't see the difference between a waiting move and zugzwang.
20
votes
1answer
5k views

What will happen if all games are draws for a World Chess Championship?

What will happen if all the games in the World Chess Championship are draws? Who will be considered the world champion?
7
votes
1answer
84 views

Bronstein timing in DGT clocks and the related PGN

I have noticed a gap in the PGN spec and the Laws of Chess in section 6.2.2 The time saved by a player during one period is added to his time available for the next period, except in the ‘time delay’ ...
6
votes
0answers
96 views

What is the human influence in modern correspondence chess? [duplicate]

On most websites, such as chess.com and lichess.org, computers aren't allowed, but when playing under ICCF rules engines are allowed. With the increase in strength of engines especially from the ...
4
votes
1answer
313 views

Why this exchange

I’m reading a book saying that now black Knight at b4 is under attack so need move away. However Stockfish app suggests take the white c3 Knight first using f6 Bishop , then black will Rcxc3 take the ...
3
votes
2answers
360 views

Why is it inappropriate to take a photo with the trophy according to Carlsen?

In the press conference (at about 44:20) of World Chess Championship, Maurice Ashley invites Nepo and Carlsen to take a photo with the trophy but Carlsen says that he finds it inappropriate. Why is ...
0
votes
0answers
104 views

Did Geller resign in a drawn position vs Spassky in a 1959 game

Did Geller resign in a drawn position vs Spassky in 1959 ? Or could White win ? The famous controversial position is the following : [FEN "6k1/6p1/7p/7P/2q1B1P1/Kp3P2/1B6/2N5 b - - 0 1"] ...
16
votes
5answers
6k views

Was AlphaZero taught castling?

Since castling involves one player moving two pieces in one move, was AlphaZero just given this move, in the same way it was told that players take turns and a win is better than a loss? In other ...
5
votes
1answer
241 views

Which online chessboard orientation do professional players prefer?

Do professional online players always prefer to play on a chessboard oriented with the Black pieces on the top or with their own pieces on the bottom? Is there a consensus on this, and has there ever ...
7
votes
2answers
507 views

Why don't engines show explicitly that a certain move takes to a threefold repetition (instead of just showing 0.00)?

I get that from the point of view of the engine there's no difference; equal is equal. But for a human analyzing with an engine, I find quite important to note that a move takes to a balanced position ...
11
votes
3answers
3k views

Ruy Lopez - why does Black not take e4?

In the following Ruy Lopez opening; [FEN ""] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 (5... Nxe4) Now the question, instead of Be7 why does Black not play Nxe4 as e4 is not defended? ...
9
votes
2answers
1k views

What previous results match/compare to Alireza Firouzja's 3000+ performance in the European Team Championships?

Firouzja has just scored 8/9 against opposition with an average rating of 2664 - 7 wins and 2 draws. According to the video clip in this tweet his performance rating was 3017. According to chess-...
5
votes
1answer
179 views

When should I care about an opponent's pin?

This has been a problem that has been vexing me for a while, and it manifested again in my most recent game in which I played Black: [FEN ""] 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 ...
2
votes
2answers
185 views

What is this opening called?

I would like to know what this opening is called, if someone has made a bad move, and who stands better. Finally if this opening is played by grandmasters here.
5
votes
2answers
634 views

What is the need for repetition rules given the 50 & 75 move rules?

Given the existence of the (optional) 50-move rule and the (mandatory) 75-move rule, are the (optional) threefold-repetition rule and the (mandatory) fivefold-repetition strictly necessary? Do the ...
3
votes
1answer
69 views

Two seriesmover stalemate constructions

Easy one: Starting position, but Black never moves. White makes n moves (no checking!) until Black is stalemated. Minimize n. Hint: You don't need to capture all Black pieces, pawns can also be ...
-2
votes
1answer
294 views
+50

On average, how many pawns are there at the start of the endgame?

Question: On average, how many pawns are there at the start of the endgame? To answer: You can choose your definition of the endgame as long as you can show a credible reference that supports your ...
0
votes
1answer
78 views

How does Anna Rudolf beat Hikaru Nakamura in this rook vs queen endgame fortress that came from a choker game (chess + poker)?

Position that follows is from Anna Rudolf's video 'Challenging Top Chess Grandmaster Hikaru Nakamura for a Choker Match!': [FEN "8/5p2/8/2qkp3/4R1P1/5P2/3KP3/8 b - - 0 1"] Also, here's a ...
1
vote
0answers
40 views

Rating system (glicko, elo, etc): is 'predict the outcome of games' the same thing as 'reduce the number of upsets'?

From Lichess page 'Chess rating systems': Which rating system is best? The purpose of rating systems is to predict the outcome of games. Therefore, they can be objectively better or worse, according ...
2
votes
1answer
41 views

Chessgames.com board theme and pieces

What lichess and chess.com setups are the most similar to the board theme and pieces of chessgames.com? I love their setup and I'm feeling the most comfortable with it.

15 30 50 per page
1
2 3 4 5
149