Questions tagged [records]

For questions related to (world) records in chess, e.g. the longest game (in moves or in duration), highest obtained rating, longest mate in n puzzle, etc.

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2answers
477 views

Longest period with each piece "hanging"

What is the longest period in a real game with a position in which all pieces were "hanging"? The game can also be rapid, blitz or blindfold, but both players should have at least a 2000 ELO....
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2answers
575 views

The quickest selfmate in 1

How quickly can a legal game reach a position where one side must give checkmate? This is in effect Evergalo's reading (see his (now deleted) answer) of Rewan Demontay's Question 33154; that question ...
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1answer
364 views

Maximum number of captures in a position

I was wondering what the maximum number of captures in a position is, either in a real game or a problem.
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1answer
553 views

What is the longest tablebase win that includes draw rules?

It has been asked the longest mate that includes draw rules is, and it is known what the longest tablebase mate is. However, what is the longest tablebase mate, i.e. 7 pieces or less, that accounts ...
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1answer
208 views

Shortest game controlling a single square 16 times?

Does someone know the shortest orthodox chess game such that a single square is directly controlled 16 times? After 1. Nf3 for instance, the square d2 is controlled 5 times. And 2. ... Qa5 pushes the ...
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0answers
157 views

Who was, or is, the oldest WGM?

It is well known that (concerning GMs only) Lilienthal set a record - he missed the 100 only by 3 days. Averbach is very close to beating him. What about WGMs? It is trivial to look into the FIDE ...
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3answers
325 views

Is this the quickest way to clearing the board to two kings? [duplicate]

Is 21 moves the least needed to get board down to 2 kings? [FEN ""] 1. e4 d5 exd5 Qxd5 Qh5 Qxa2 Qxh7 Qxa1 Qxh8 Qxb1 Qxg8 Qxb2 Qxg7 Qxc2 Qxf8 Kd7 Qxf7 Qxc1 Ke2 Qxd2 Kf3 Qxf2 Ke4 Qxf1 Qxe7 Kc6 Qxc7 ...
3
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2answers
592 views

Longest way to mate with 1 queen against 4 queens

What is the longest way to checkmate with 1 queen against 4 queens, with no other pieces on the board? Since there are 13 moves long games with a queen vs two queens, I conjecture this should be ...
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1answer
505 views

Quickly losing a queen in style

I accidentally ran into this game again. [FEN ""] [startply "7"] 1. e4 e6 2. d4 Qf6 3. e5 Qf5 4. Bd3 What would be the fastest way to lose a queen by a direct attack on ...
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1answer
519 views

What is the maximum number of en passants possible?

Out of curiosity, how many en passants can theoretically be done by both sides, and what is the fastest way to achieve that result?
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2answers
253 views

What is the chess position with biggest X, where no matter what legal move black/white does, a specific player will be mated at a max X moves later?

There are positions where no matter what legal move black or white does during this sequence of moves, an specific player, will always be mated after X moves (sometimes earlier, but after X moves its ...
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3answers
324 views

What is the quickest way to reach a mutual, symmetrical stalemate?

What is the fastest known game that ends that in a mutual stalemate position that is symmetrical?
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1answer
208 views

Longest forced win after 3 moves

It is possible to reach (exactly) #8 after just 3 moves: [Title "#8 after 3 moves"] [FEN ""] 1. e3 f6 2. Qf3 Kf7 3. Nh3 Qe8! 4. Ng5+ Kg6 5. Bd3+ Kxg5 6. Qf4+ Kh5 7. g4+ Kh4 8. Qg3+...
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1answer
196 views

What is the shortest 1:16 mutual stalemate with the White king at home?

In this ancient r/chess thread, several users explored the shortest possible 1:16 mutual stalemate. StoofBuzze provided a record in 42.5 moves. However, what is the shortest such game in which the ...
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1answer
314 views

Longest sequence of moves by one player with the same piece?

I suspect the following game in the European Club Champioship between David Howell and Pentala Harikrishna set a number of records. [title "Howell, David W L vs Harikrishna, Pentala"] [fen ""] 1. e4 ...
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1answer
372 views

What is the highest number of forced checkmates in a legal position?

Having been inspired by a similar question, what legal positions have the most forced checkmates for one side and for both sides?
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1answer
454 views

Longest DTM in the endgame KQPPKQ

What is the longest DTM in the endgame queen and two pawns versus a queen (KQPPKQ? This position is a mate in 167 moves. [FEN "8/k7/6K1/1Q6/8/P6q/7P/8 w - - 0 1"] Are the DTC and/or DTZ ...
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1answer
128 views

A mobility puzzle

[FEN "8/8/8/8/pp6/kp6/1p6/1K6 w KQkq - 0 1"] This is a well-known position: both sides are stalemated (if it's their move). It's the lightest position with this property. Devise the ...
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1answer
80 views

How many matches have there been at the top level which have ended up with a tied score and a winner?

In the current FIDE Grand Prix tournament in Jerusalem the first round match between Pentala Harikrishna and Sergey Karjakin ended in a tied score, 4.5-4.5, but Karjakin won because the last game was ...
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1answer
484 views

Which international tournament game has the record for the longest sequence of forced moves until checkmate?

I want to know which international game has the longest sequence of forced moves until checkmate, even if the opponent resigned the game. The result should not be drawn, i.e. we should consider 50 ...
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1answer
144 views

The quickest selfmate in 2

Duh. Clearly, the one shown there with Qxh5+ Rxh5# can be easily turned into a s#2, by e.g. B-e2-f3, Qe2 from White and c6, Q-a5xd2-d1 from Black. 9.0 moves if I added correctly. Someone care to beat ...
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1answer
75 views

List of female chess players by their peak FIDE blitz rating

Similar to these: List of female chess players by peak FIDE rating List of female chess players by peak FIDE rating with countries? List of chess players by their peak FIDE blitz rating List of ...
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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 ...
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36 views

Add as many potential moves as possible by move

8/8/7K/p7/R3b2k/6rP/4p3/4B1N1 w - - 0 1 This is an age old record by Shinkman: Black is stalemated if having the move, but the White move 1.Bb4 grants 32 moves. (Don't bother trying to top that...) ...
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2answers
842 views

Longest *shortest available* fixed sequence of moves leading to checkmate?

What is the longest fixed sequence of consecutive moves you can find in any legal position that guarantees checkmating the opponent regardless of their responses (whether by forcing particular ...
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1answer
295 views

Longest sequence of forcing moves?

What is the longest fixed consecutive series of moves for one player such that the other player's response is forced every move? Assume draw rules must be obeyed (threefold repetition, 50-move rule, ...
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3answers
363 views

What is the fastest vertical checkmate for both castlings?

I wish to know the fastest possible castling checkmate, both queenside and kingside, that is vertical. See my question about horizontal checkmates.
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2answers
209 views

Another mobility puzzle

This is the "opposite" of A mobility puzzle - I held it back because it could have interfered with Schwalbe 2021 construction challenge. Thus: Put a maximal number m of pieces on the board ...
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1answer
1k views

What is the record for the most pawns, of both sides, on a file in a professional chess game?

Some of us have heard about the famous game Kovacs-Barth, Balatonbereny 1994, which has the longest known surviving quadrupled pawn structure . It is one of many games with quadrupled pawns for one ...
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1answer
104 views

Fastest way to get both kings to the other side of the board?

Say that both players collaborate to get White's king to the eighth rank and Black's king to the first. What's the shortest sequence of moves that achieves this?
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2answers
209 views

What rearrangent of the starting position's pieces, in any manner, has the fastest stalemate?

It is well known that the fastest stalemate is in 19 ply. But what is the fastest possible if all pieces, not pawns, may be shuffled at will on their first ranks? This will be difficult since there is ...
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3answers
261 views

Longest sequence with only moves to draw without a repetition

What is the longest known sequence of moves with upto 6 pieces where each move of both sides is the only move drawing the game (any other move would lose the game) ? There should not occur any ...
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1answer
153 views

What is the longest known 7-piece checkmate?

What is the longest known 7-piece checkmate?
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1answer
341 views

List of chess players by their peak FIDE rapid rating

Similar to these: List of female chess players by peak FIDE rating List of female chess players by peak FIDE rating with countries? List of chess players by their peak FIDE blitz rating List of ...
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1answer
161 views

What is the longest wait before a draw offer is accepted?

If I understand correctly, once player A makes a draw offer, the opponent player B retains the right to accept the draw offer as long as player B does not rejected it verbally, or touch a piece with ...
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1answer
318 views

What is the fastest possible stalemate by castling?

It is known what the fastest stalemate is. But what but is the fastest possible stalemate in which castling must be the last move? 33 plies is my best result so far. [FEN ""] 1. e4 h5 2. ...
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1answer
106 views

Maximum number of quiet moves in a position

The question of how many captures a position can have has been asked in the past: Maximum number of captures in a position Without captures, and without promotion, which I define as “quiet” moves, ...
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6answers
391 views

Position with the largest material imbalance that is a draw, no matter whose turn it is?

I am curious if there is a known position with the largest material imbalance that, no matter who it is to move, the weaker side can hold a draw.
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2answers
310 views

What is the fastest horizontal checkmate for both castlings?

I wish to know the fastest possible castling checkmate, both queenside and kingside, that is horizontal. See my question about vertical checkmates..
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2answers
260 views

List of female chess players by peak FIDE rating with countries?

same question as here but with countries please. hopefully we can have a list as close to the original wiki page as possible. I'll start: 1 - Hungary - Judit Polgar - 2735 - 2005-07 - 1976 - N/A - ...
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1answer
65 views

How many unoriginal pawn moves can be made in a single game?

Consider an "unoriginal pawn move" to be a pawn move whose notation matches a move already played in the game. For instance, after 1.e4 e5 2.d4 exd5 3.e5, there is one unoriginal pawn move, ...
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1answer
860 views

What is the longest possible series of consecutive captures?

What is this the longest possible series of consecutive captures in a legal position? Here is an example of 25 on the same square, which is not required. [FEN "q1kr2q1/1qnqnb2/2prp3/q2pK3/2P1P3/...
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1answer
211 views

Have there been computer-vs-computer chess games exceeding 493 moves?

From a FIDE Online Arena Facebook post (which appears copy/pasted from elsewhere), I'm interested in the part in bold: (Image of a chess board with two kings and no pawns nor pieces omitted.) This ...
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1answer
90 views

The fastest dualed mates in n

Hauke Reddmann asked a cool question about the quickest dual-free mates in n's from the starting position. But this is a rather limited scope. I wish to attack this idea from a different angle. What ...
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0answers
55 views

The quickest mutual selfmate in 1

How long would it take for a game to reach a position wherein either side could selfmate? Pretend you pass by the board at that moment; you wouldn't know who has the move. I found an answer in 13 ...
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0answers
165 views

What is the most number of blunders in a 2100+ game?

Obviously any move (starting at a given position) may be a blunder, see Kh3 Ra4 Nf5 - Kh1 Rf2 where both sides may miss a mate in one until kingdom come. It might be amusing to watch two engines ...
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0answers
74 views

What is the theoretical maximal total of material for the insufficient material draw? [duplicate]

The insufficient mating material rule says that the game is immediately declared a draw if there is no way to end the game in checkmate. This usually happens in KB vs K or KN vs K endgames. However, ...
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2answers
666 views

The highest amount of moves by the losing side in a zugzwang

In zugzwang, the usual idea is to limit the number of moves that the opponent can make. But they can also have many moves in certain scenarios. What is the highest amount number of moves by the losing ...
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2answers
335 views

What is the record for the most pawn double-steps in a professional game?

Quite simply, what is the record for the most pawn double-steps in a professional game? Drawn and won games are both considered. Computer games of any kind are not to be considered. The most I have ...
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1answer
189 views

I have discovered a selfmate requiring 1,351 moves to enforce. How does this move-count stack up against the 'record holder'?

I've discovered a selfmate requiring 1,351 moves to enforce. What is the highest move-count known for a selfmate? {The starting position is provably legal}.