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1500 questions
10
votes
1 answer
Downloading Games From Lichess
I'd like to be able to automate downloading specific games that have been played on Lichess. Is there any software available that, if given useful information such as the Lichess usernames, colours, time control and (approximate) time of the game…
Ian Bush
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3 answers
What defines the name of a gambit?
What defines the name of a gambit? To be obvious, if someone were to use a gambit often (of their own theory), you would name that gambit after them or so, right (like the Ruy Lopez opening)? How then do we get the names of the gambits?
bean delivery man
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1 answer
Mate with both hands: Result?
Constructed case: In a tournament (LoC Tournament Rules apply, no rapid, no blitz) White plays d7-d8Q by placing the new Queen on d8 with the right hand and removing the pawn d7 with the left. White did not press the clock but claimed a…
Christian H. Kuhn
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1 answer
Why is ...a6 played in the Exchange Slav?
[fen ""]
1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Bf4 Nc6 6. e3 a6
I do not see the point of this move. At first I thought it is aimed to prevent Bb5 and thus maintain the knight on c6, which controls e5, a square where White has a firm grip.…
B.Swan
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10
votes
8 answers
How to make an AI chess engine which can play like a human of similar rating?
We have lot of sophisticated chess engines, but I always prefer playing with a human online, because they make genuine mistakes / blunders which adds a human touch. Playing with computer at a high level is boring as it is too difficult to crack and…
Shakti
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2 answers
Maximum number of knights populating a chess board so that no knights are attacking one another
The 8 queen's puzzle is a well-known puzzle involving placing 8 queens on a chessboard so that no queen attacks another queen. It is more or less obvious that 8 is the maximum number of queens that can populate a chessboard so that no queens are…
Scounged
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3 answers
Wrongly placed chessboard - what happens?
What happens if the chessboard is kept with black square on right hand side instead of white square? I think that the notations will change.
In the new positon, the White king will be positioned on a white square and the Black king will be…
Prashant Akerkar
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votes
2 answers
Three way fork-Why take the rook instead of the queen?
I just finished off a game and decided to do some analysis because I had a position that I was thinking about for a little bit.
I ran the game through Stockfish and the move I was thinking about was one Stockfish disagreed with.
[FEN…
Dheebs
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2 answers
Does a KQQ vs KQ endgame position with perpetual check exist?
In such an endgame situation (no specific position), where White isn't pinning the Black queen on the first move, is it possible for Black to get a perpetual check if they move first?
user24344
10
votes
4 answers
Why is White considered so much better in this position?
I'm not sure I understand why Stockfish considers White so much better here. A look at the two strongest lines for White by Stockfish doesn't really give me much intuition about what White is playing for. I see that Black's LSB is stuck defending…
imu96
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votes
2 answers
Longest possible FEN
What is the longest possible FEN? The reason for that question is, that I am designing a PGN viewer (again), and I have noticed that the FEN is dependent on the width of the board (the FEN test area is placed below). So the following number of…
mliebelt
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10
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1 answer
How many queens can be on the board without neither forced mate nor forced stalemate (53?)?
I was wondering how many queens can be put on boards without the position being a forced checkmate or a forced stalemate. The best I came up with is 53 this position.
[FEN "QQQQQRK1/QQQQQPr1/QQQQQRNk/QQQQQQpB/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ/QQQQQQQQ w -…
Lubomír Grund
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votes
3 answers
Is there a list of approximate Elo ratings for each Stockfish level?
I want to create something that will select an appropriate Stockfish difficulty setting automatically given the player's rating. The straight Stockfish v11 that I've downloaded has 20 difficulty settings, and various other settings for controlling…
day
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2 answers
How can I know if the chief arbiter has "cheated" in the pairings and possibly report it?
Few years ago, I participated in a local, FIDE-rated tournament. In its first round, the chief arbiter paired the players 4 times (yes, I saw the 4 different pairings and changed four opponents before I started the game!).
This was only the start;…
double-beep
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votes
2 answers
Who were the first GMs, and how did they become GMs?
In order to qualify for the title of Grandmaster, a player must achieve three Grandmaster norms. This is not the place to go into detail about what those are; the pertinent point is that norms can only be gained in tournaments that fulfill certain…
NotSJR
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