7 votes
Accepted

What is the most number of repetitions in a GM game?

The most number I have found so far is in this game from 2015 [fen ""] [Title "Narciso Dublan vs Grigoryan 38th Barbera Open 2015 "] 1.e4 c5 2.Nc3 e6 3.g3 d5 4.exd5 exd5 5.Bg2 d4 ...
Brian Towers's user avatar
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6 votes

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

are the (optional) threefold-repetition rule and the (mandatory) fivefold-repetition strictly necessary? Yes, they are necessary. Something which players sometimes forget is that arbiters are people ...
Brian Towers's user avatar
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3 votes
Accepted

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

An important, but not the sole, reason for allowing draws in chess (outside of stalemate) is to prevent infinitely long games. Hence, when helpmate is unachievable for either side (a condition loosely ...
Mobeus Zoom's user avatar
  • 2,279
3 votes

EXTENDED New Year's Math Riddle: 5-fold repetition & 75-move rules

Answers to all 4 questions Q1: Under the 3-fold repetition & 50-move rules, how many times can a diagram occur? A1: Even if it were mandatory, the 50-move rule has no impact: the answer is still ...
Laska's user avatar
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2 votes

Quintuple repetition and the FIDE's 2014 rulebook revision

In the Jan 2018 Laws (and indeed the previous version too, but that's history) the rule is replaced with: 9.6.1 [The game is drawn if] the same position has appeared, as in 9.2.2 [Draw by ...
Laska's user avatar
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1 vote

Quintuple repetition and the FIDE's 2014 rulebook revision

The only question is whether the same position has occured ( = the FEN notation would be the same) multiple times ( = five different # of moves apply to the same position). Nothing is said about move ...
Ferazhu's user avatar
  • 192

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