Questions tagged [75-move-rule]

Questions about the seventy-five-move rule

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5
votes
2answers
652 views

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

Given the existence of the (optional) 50-move rule and the (mandatory) 75-move rule, are the (optional) threefold-repetition rule and the (mandatory) fivefold-repetition strictly necessary? Do the ...
5
votes
1answer
560 views

Longest possible game of Horde Chess

The longest possible normal game of chess has been calculated, but I want to know what the longest possible game of Horde Chess is. What makes this an interesting case is the crazy amount of pawn ...
1
vote
1answer
823 views

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

This puzzle extends Rewan Demontay's New Year Math Riddle. Rewan asked (essentially): if the players co-operate, what's the largest number of times a given diagram can occur in a game before reaching ...
37
votes
2answers
13k views

Why is there a 50-move rule and a 75-move rule?

Logically, if 75 moves have been played, 50 moves would've also been played. This sounds ridiculous. It is like saying "I would buy this book if it cost under $60 and it costs under $40". So,...
16
votes
6answers
3k views

Does the FIDE 75-move rule apply after checkmate or resignation?

75 move rule says 9.6 If one or both of the following occur(s) then the game is drawn: (...) any series of at least 75 moves have been made by each player without the movement of any pawn and ...
19
votes
1answer
4k views

Has the 75 move draw rule ever been invoked in a FIDE rated standard game involving a GM?

In the latest FIDE Laws of Chess the arbiter is supposed to step in and declare the game drawn if 75 moves are played by both sides with no captures and no pawn moves. It would be understandable if ...