5 ms·
I believe 8848.5 under modern rules (with the 75-move rule, as in FIDE rules since 2014). There's a reasonably rigorous demonstration here: https://wismuth.com
by dmurray 1y ago
I believe 8848.5 under modern rules (with the 75-move rule, as in FIDE rules since 2014). There's a reasonably rigorous demonstration here:
https://wismuth.com/chess/longest-game.html https://wismuth.com/chess/longest-game.html
- LegionMammal978 1y agoThanks for that link! I was looking for that answer a few years ago, but I couldn't find anyone who had carried it out all the way through (with the cost of "switching control" fully accounted for), nor many people who were even aware of the 75-move rule.
- LorenPechtel 1y ago75 move rule?! Did they go and change the 50 move rule or something, because I've never heard of it.
- dmurray 1y agoThe 50 move rule is still there: either player has the right to claim a draw after 50 moves without a pawn move or a capture. So the game can end then if either player wishes it to (and it almost always will end, because at least one player can expect no better than a draw). After 75 moves, however, it's not optional, the game has ended. It's still a draw if the game subsequently "ends" in checkmate or a loss on time, though maybe not the players sign the score sheet, move on to the next round, etc.
- deleted 1y ago[deleted]
- sim7c00 1y agohow can the longest game have half a move???
- InitialLastName 1y ago"Moves" are counted for both players. Half a move means White moved but Black hasn't yet.
- sim7c00 1y agothank you!
- pxx 1y agoAn A press is an A press. You can't say it's only a half.