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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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List of records for youngest female international masters since 1950? [duplicate]

Note: I really mean female IMs and not WIMs All IM version: List of records for youngest international masters since 1950? WIM version: List of records for youngest WIMs (woman international masters) ...
BCLC's user avatar
  • 1
27 votes
5 answers
5k 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 ...
user avatar
16 votes
3 answers
3k 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?
Ahmad Azwar Anas's user avatar
4 votes
1 answer
2k views

List of female chess players by peak FIDE rating

Update: The answer currently doesn't include countries and other trivia like in the original one. Please consider posting an answer with at least the countries or editing current answer to include ...
BCLC's user avatar
  • 1
-6 votes
3 answers
425 views

How do I find data to determine records like the youngest person to obtain a certain title?

A. Background: Under Mobeus Zoom's suggestion here: List of records for youngest superGMs since 1950? (or 1970 or whenever FIDE started rating people. or basically after 2700s after Fischer) (this is ...
BCLC's user avatar
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1 vote
2 answers
490 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 - ...
BCLC's user avatar
  • 1
15 votes
4 answers
4k views

What is the shortest possible game with 18 queens?

This question demonstrates a game in which all 16 pawns promote for a total of 18 queens on the board. It takes 80 moves... What is the shortest sequence of moves that achieves this goal?
yrodro's user avatar
  • 2,064
12 votes
1 answer
4k views

What is the longest proven forced win (including 50 & 75 move 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?...
silent-tiger's user avatar
-2 votes
1 answer
206 views

List of records for youngest female grandmasters since 1950?

On Wiki, we have a list for List of youngest grandmasters since 1950. What about female GMs (really female GMs and not WGMs) instead of GMs? I guess the list ends with Judit Polgar, Koneru Humpy and ...
BCLC's user avatar
  • 1
15 votes
3 answers
608 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 ...
ericw31415's user avatar
6 votes
3 answers
217 views

Longest sequence of moves where number of available moves increases

White has 20 available moves at the start of the game. After 1.a4 e5, white has 21 available moves. (The rook has gained 2 moves, while the pawn has lost 1). What is the longest sequence of moves ...
Steve Bennett's user avatar
6 votes
3 answers
1k views

What professional game has the quickest sequence, starting from move one, to quadrupled pawns?

In the blog "AJEDREZ, SIN DUDA", I came across a page that gives a game featuring quadrupled pawns. [Title "Zheliandinov-T. Sereteli, 35th Championship of the USSR, Kharkov, 1967"] ...
Rewan Demontay's user avatar
3 votes
1 answer
213 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 ...
BCLC's user avatar
  • 1
2 votes
1 answer
2k 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 ...
BCLC's user avatar
  • 1
-1 votes
1 answer
282 views

List of records for youngest WFMs (woman FIDE masters) since 1950 (or whenever)? [duplicate]

On Wiki, we have the List of youngest grandmasters since 1950. What about WFMs (woman FIDE masters) instead of GMs? Note 1: I really mean to ask about WFMs (females who obtain the female exclusive ...
BCLC's user avatar
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28 votes
1 answer
6k 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? ...
Haran's user avatar
  • 621
20 votes
4 answers
4k 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 ...
micsthepick's user avatar
11 votes
3 answers
3k views

Maximum number of pieces on board in dead position

It is possible in a chess game to have a dead position in which both players have all eight pawns, one bishop, and a king--20 pieces total. If the two players' pawns are interlocked in "zig-zag" ...
supercat's user avatar
  • 1,154
11 votes
5 answers
23k views

What is the longest forced win with 3 to 6 pieces (ignoring 50 & 75 move rules)?

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 ...
DrZ214's user avatar
  • 759
9 votes
2 answers
1k views

What is the maximum number of passed pawns in a position?

Something I have wondered about recently is the maximum number of passed pawns that is theoretically possible. What is the answer, and the fastest way to achieve that result?
Rewan Demontay's user avatar
9 votes
7 answers
515 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 ...
I. J. Kennedy's user avatar
7 votes
2 answers
550 views

Challenge: Create the longest set of moves where the game is able to be perfectly reproduced from only the current board state and move number

The challenge is to create the longest list of half moves whereby an AI could re-create that list of moves perfectly, only given the ending board state and the number of moves. As example I will first ...
jbernard3396's user avatar
6 votes
3 answers
860 views

What is the highest number of pieces from one side that can be involved in a checkmate?

What is the highest number of pieces from one side that can be involved in a checkmate? "Involved in a checkmate" is defined below. A non-king piece is involved in a checkmate 'if removing ...
user avatar
6 votes
4 answers
602 views

Longest sequence of moves where white's number of available moves decreases

An easier version of this White has 20 available moves at the start of the game (from the standard position). After 1.h3 h5, white has 19 available moves. (The h pawn has lost the ability to move two ...
Steve Bennett's user avatar
6 votes
4 answers
2k 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? (...
Cotton Headed Ninnymuggins's user avatar
6 votes
3 answers
585 views

The quickest mate in n

Obviously inspired by the analogous selfmate question. (Helpmate would also be possible in principle, but looks a bit silly.) Thus, 1.f3 e5 2.g4 allows Black a #1, and 1.f3 e5 2.h3 a #2. 1.f4 e5 2....
Hauke Reddmann's user avatar
4 votes
2 answers
690 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 ...
Noam D. Elkies's user avatar
1 vote
1 answer
504 views

Both (at least) WGM and PhD/doctorate

Similar to this question Both grandmaster and PhD/doctorate but for at least WGM (WGM, female IM, female GM, etc) Among woman grandmasters, who have PhDs/doctorates? Conditions: standard WGM only eg ...
BCLC's user avatar
  • 1
-4 votes
2 answers
409 views

List of records for youngest WCMs (woman candidate masters) since 1950? [duplicate]

Re the close: If it was really a duplicate then why didn't Brian Towers♦ answer on the other post? Checkmate! On Wiki, we have the List of youngest grandmasters since 1950. What about WCMs (woman ...
BCLC's user avatar
  • 1
27 votes
2 answers
3k 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 ...
minoret's user avatar
  • 281
22 votes
4 answers
4k 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 ...
Peter's user avatar
  • 3,359
12 votes
8 answers
18k 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 ...
Quaxton Hale's user avatar
11 votes
8 answers
2k views

Both grandmaster and PhD/doctorate

Who have PhDs/doctorates that are also grandmasters? Conditions: standard GM only eg no WGM (see there for WGM version), no International Correspondence Chess Grandmaster no honourary PhDs/...
BCLC's user avatar
  • 1
9 votes
3 answers
2k 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?
jva's user avatar
  • 367
5 votes
1 answer
436 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.
tttony's user avatar
  • 227
5 votes
2 answers
2k views

How many times can the same pawn move be made in a game?

How many times in a game can "the same pawn move" be made? By "the same pawn move", I mean, a move made by a pawn that would be notated the same way. For instance, after 1.e4 e5 2....
Steve Bennett's user avatar
5 votes
1 answer
880 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 ...
Rewan Demontay's user avatar
5 votes
2 answers
349 views

Who was, or is, the oldest WGM?

It is well known that (concerning GMs only) Lilienthal set a record - he died 3 days after his 99th birthday. Yuri Averbakh has since surpassed him and may well be the first 100 year old GM. What ...
Hauke Reddmann's user avatar
5 votes
1 answer
376 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 ...
ericw31415's user avatar
4 votes
1 answer
147 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 ...
Hauke Reddmann's user avatar
3 votes
3 answers
466 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.
Rewan Demontay's user avatar
3 votes
3 answers
342 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 ...
Rewan Demontay's user avatar
3 votes
1 answer
466 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?
Rewan Demontay's user avatar
3 votes
1 answer
507 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 ...
Peter's user avatar
  • 3,359
2 votes
2 answers
368 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..
Rewan Demontay's user avatar
2 votes
1 answer
461 views

What is the longest known 7-piece checkmate?

What is the longest known 7-piece checkmate?
theonlygusti's user avatar
2 votes
1 answer
150 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 exd4 3.e5, there is one unoriginal pawn move, ...
Steve Bennett's user avatar
0 votes
1 answer
203 views

What is the fastest way to reach a position in which one side is forced to choose between checkmate and stalemate?

I had an interesting idea recently. While there are many proof games ending in checkmate or stalemate, why not both, I thought. So, thus I wondered, what is the fastest way to reach a position in ...
Rewan Demontay's user avatar
0 votes
1 answer
195 views

List of female chess players by their peak FIDE rapid rating

Similar to these questions: 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 ...
BCLC's user avatar
  • 1
0 votes
1 answer
132 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 ...
Rewan Demontay's user avatar