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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1answer
86 views

What is the fastest possible stalemate by castling?

It is known what the fastest stalemate is. But what but is the fastest possbile stalemate in which castling must be the last move? 33 ply is my best result so far. [FEN ""] 1. e4 h5 2. Qxh5 d6 3. ...
7
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2answers
973 views

Most pieces involved in checkmate in actual game?

I recall seeing a number of chess games where a lot of pieces are involved in the final checkmate, and was curious to know what is the maximum number of pieces of one player A that have been involved ...
2
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1answer
188 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 ...
1
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1answer
87 views

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

It is well-known that stalemate can be achieved from the normal starting position in just 9.5 moves, aka 19 ply But what is the fastest stalemate possible from an initial position where the pieces (...
26
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1answer
5k views

What is the fastest way to reach stalemate?

It is known that the minimum number of moves required for checkmate is 2 moves (4 half moves) resulting in a victory for Black. However, what is the minimum number of moves required for stalemate? ...
2
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1answer
133 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 ...
3
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1answer
74 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 ...
2
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2answers
415 views

What is the farthest away a game can be from a guaranteed checkmate?

What is the maximum number of moves away from checkmate that a player can be where checkmate is guaranteed? There are many positions that are a guaranteed win for a player if played perfectly right? (...
3
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1answer
290 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 ...
4
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1answer
313 views

What is the maximum number of promoted pawns ever achieved in a competitive game?

In theory, a player could advance all eight of their pawns to the end of the board, promoting them all. In my own experience, games with more than two promotions on one side have been vanishingly rare,...
0
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2answers
267 views

Record for most double-steps by pawns in a game?

Quite simply, what known official game, as in a tounament game, holds the record for the most double-steps by pawns? Drawn and won game are both considered. The most I have found, in quite a few games,...
20
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1answer
2k views

From the start of the game what is the longest possible series of consecutive white moves where white can do those moves no matter what black does?

From the start of the game what is the longest possible series of consecutive white moves where white can do those moves no matter what black does? So I want the longest list of moves white can do ...
4
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1answer
262 views

Record for most stalemates in one?

Is there a known record for the most possible stalemates in one in a legal position, for with and without promoted pieces? I have gotten some results out of my own work. For without promoted pieces, ...
0
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2answers
593 views

Most possible movement by the losing side in a zugzwang position

Usually, in a zugzwang, the idea is to limit the number of moves that the opponent can make, but it is also possible for them to have numerous moves in oddball scenarios. What is the highest possible ...
4
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3answers
311 views

Maximum number of ways to get out of check

What is the maximum number of legal moves in a legal position, given that the player is in check? It's easy to see that 43 is an upper bound. Let's suppose the white K is in check along a diagonal by ...
6
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2answers
474 views

What is the longest possible sequence of double checks?

The record for the most mutual checks is known, but what about the record for double checks? There are a few rules though so this question can actually have an answer. A checkmate move only counts it ...
3
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1answer
212 views

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

Not a duplicate of, but inspired by: A position in which checkmate is forced (obligatory) What are the legal positions that have the most possible forced checkmates for one side, and for both sides?
6
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2answers
442 views

Is there a record for threefold repetition for when the claimed positions are the farthest apart, in terms of moves?

That’s one long question, so let’s break it down. Threefold repetition, as many know, is when a draw occurs, after the same position, with all piece types on the same square, all possible moves and ...
1
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1answer
504 views

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

Some of us have heard about the famous game with the longest surviving quadrupled pawn structure, i.e four pawns on the same file (Kovacs - Barth, Balatonbereny 1994.) It is one of many games with ...
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2answers
241 views

What are the fastest horizontal checkmate for both castlings?

Horizontal: wherein the rook attacks down a rank. I wish to know the fastest possible castling checkmates, for both queenside and kingside, that are a horizontal one See my question about vertical ...
2
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3answers
248 views

What are the fastest vertical checkmates for both castlings?

Vertical: wherein the rook attacks down a file. I wish to know the fastest possible castling checkmates, for both queenside and kingside, that are a vertical one. See my question about horizontal ...
1
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4answers
217 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.
3
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3answers
262 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?
5
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1answer
344 views

What is the longest professional chess game that ended in a checkmate?

Quite simply, what is the longest professional chess game that ended in a checkmate?
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1answer
218 views

What is quickest way for an en passant checkmate after all other such captures?

Here’s a dumb challenge: What is the fastest way for an en passant checkmate after all other seven en passant captures have been done?
9
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1answer
2k views

What longest number of moves for a forced mate position (including draw rules)?

What is the longest (currently discovered) number of moves for a forced mate position where players will use both the 50-move draw rule and the 3-fold repetition rule if it will help them avoid losing?...
17
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4answers
2k views

Fastest possible checkmate by en passant

En passant is somewhat of a rare move in chess. Checkmating by en passant, however, is an even rarer occurrence. But suppose both sides had the same goal to help cause a checkmate to their opponent ...
5
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1answer
270 views

Shortest sequence of moves to create biggest material imbalance

What is the shortest game with the largest material imbalance? This of course means that one side will have 9 queens, 2 rooks, 2 bishops, 2 knights, and a king, and a bare king on the other side. From ...
3
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1answer
1k views

Longest number of moves that have been identical in two independently played games on record

Are there any recorded examples of two chess games that were identical till the end? If the answer is no (which is most likely the case), what is the longest number of moves that have been identical ...
13
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3answers
417 views

Fastest King vs King endgame

What is the fastest possible game that ends in a King vs King endgame? Please post a game and tell me the number of half-moves you've achieved. By some simple logic, I can prove that this number is ...
10
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5answers
1k views

What is the longest known stalemate your opponent in x-moves problem?

What is the longest known stalemate your opponent in x-moves problem where the given stalemate is the fastest one from the initial position? A win is not possible, but stalemating your opponent so ...
8
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3answers
460 views

Problems: record for most mates-in-2

Does anyone know what the record for most mates-in-2 is for a composed problem? Example: this one has 58 different moves that mate in 2. [FEN "6R1/8/8/8/3Q3B/5K2/7k/1R6 w - - 0 1"]
3
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2answers
482 views

What is the longest current tablebase mate with a unique optimal line?

Having been inspired by an article on ChessBase.com, what is the longest current tablebase mate with a unique optimal line? By unique, I mean for each of the winning side's plies, there is only one ...
6
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3answers
7k views

What endgame, with 3 to 6 pieces, has the longest known forced checkmate?

I am wondering, what endgame, with 3 to 6 pieces, has the longest checkmate with optimal play? Right now, the longest I'm aware of is the two knights versus one pawn endgame, which in certain ...
8
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3answers
1k views

What is the most queens that have been on the board in a grandmaster game?

There are quite a few grandmaster games with 3 queens or 4 queens, but what is the highest number of queens on the board in a game between two GMs? I'd be interested in both the most on the board ...
6
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1answer
380 views

From a full board to a pawn endgame in the shortest possible number of half-moves

Is any game known where all the pieces (except the pawns) are still on the board, and where a piece (not a pawn!) is captured at each half-move, leading to a pawn endgame? In other words, is there a ...
2
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1answer
233 views

Longest period with each piece “hanging”

What is the longest period in a real game (can also be rapid, blitz or blindfold, but the players should both have at least 2000 ELO) with a position with all pieces "hanging". To clarify this : All ...
18
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4answers
3k views

What is the longest known sequence of forced moves leading to a checkmate for one side?

By forced move, it is meant that the player has only one legal move. [fen "7k/q5Q1/p4PPK/6PP/8/5P2/8/8 b - - 0 1"] 1... Qxg7+ 2. fxg7+ Kg8 3. f4 a5 4. f5 a4 5. f6 a3 6. f7# Above is an example with ...
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3answers
188 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 ...
3
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2answers
498 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 ...
3
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1answer
367 views

Longest DTM in the endgame KQPPKQ

What is the longest DTM in the endgame queen and two pawns versus a queen (KQPPKQ) ? The position White : Kg6 , Qb5 , Pa3, h2 Black : Ka7 , Qh3 is mate in 167 if white has the move. Is also the ...
2
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1answer
245 views

Maximum number of captures in a position

I was wondering what is the maximum number of captures in a position, either in a real game or a puzzle
2
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1answer
397 views

Which international tournament chess game has the record of 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. Thanks in advance. Note : Result should not be drawn [1/2 - ...
9
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7answers
335 views

Position with the most (or many) distinct refutations?

I'm looking for a chess position, hopefully not too contrived, in which it's Black's turn, he has several moves, but each one is refuted by a mate by White. I know I could take any mate-in-two ...
7
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3answers
1k views

Longest forced sequence that ends with checkmate and every move is a check

What is the longest move sequence that ends with checkmate and every move is a check by both players?
6
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3answers
238 views

Maximum number of non-pawn pieces on the board

In a reachable game, what is the maximum sum of queens, rooks, bishops, knights, and kings on the board? For queens only, see Maximum number of queens possible
19
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5answers
2k views

Longest sequence of mutually forced moves

In this position, the black move 1. ... Qc3 results in two consecutive forced moves, Kxc3 and Ke7: 2rkr3/2p5/2q5/8/8/8/3KP3/3R4 b - - 0 1 1... Qc3 2. Kxc3 Ke7 What is the longest sequence of ...
10
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3answers
1k views

Maximum possible movement in a turn

I've read that for any position, there are on average approximately 35 possible moves. But what's the maximum number of possible moves for a position?
11
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3answers
2k views

Shortest possible game with 18 queens?

The selected answer to this question shows a game in which all 16 pawns promote to queens so that there is a total of 18 queens on the board. It takes 80 moves... What is the shortest sequence of ...
9
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7answers
10k views

Longest chess game possible (maximum moves)

What is the longest chess game possible in terms of chess moves? I read somewhere that there is a theoretical maximum of 5949 moves. But I don't see any proof and I don't think it is correct. Can it ...