Re:The neural network of the Stockfish chess engine
by harryposner on Wednesday January 13, 2021 @11:27AM
(#25764192)
> there's no, say, "fivefold repetition" draw that could be enforced despite the players' will
There is exactly such a rule. See the FIDE Laws of Chess [0], rule 9.6.1.
Re:The neural network of the Stockfish chess engine
by anandoza on Wednesday January 13, 2021 @11:06AM
(#25763846)
Lichess.org actually does have a 5fold repetition rule that applies without players claiming it -- https://lichess.org/faq#threefold
Kind of funny that your hypothetical example was exactly reality in this case.
The threefold repetition rule doesn't have an equivalent (there's no, say, "fivefold repetition" draw that could be enforced despite the players' will), but it's really irrelevant from the perspective of solving chess, because there's no point in analyzing what happens if game goes through the same loop 1, 10 or 100 times.
And the 75-move rule sets a hard limit anyway, so you couldn't loop infinitely, even if it mattered.