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Is there a limit to the number of moves in a tournement game?
NO (in general)- and YES (specifically) - there is a "50 move rule" in which the game is a draw if 50 consecutive moves are made without a pawn move or piece capture. (For instance, so that bozos who don't know how to mate with K+B+N vs K can't learn it OTB by making you sit at the board for days, wks or years until they "get it.") And there is a "triple repetition rule" in which the game is drawn if a player announces it prior to making his/her move that will result in a triple repetition of the exact same position - and it doesn't have to be three moves in a row either which can get confusing, esp in time pressure.
Other than that, the other reasons for ending a game don't directly relate to limiting the number of moves: checkmate, stalemate, insufficient material or both players simply agree to a draw.
However, the fifty move rule must be claimed by the player who desires a draw. so in theory after a minimum of 126*50 = 6200 moves either player will have the RIGHT to a draw, but NEED NOT claim it. So no, there is no limit to length.
@tazerdadog Where does the 126 come from? Yo no comprendo...
126 = maximum number of 50-move-rule resetting moves in a game.
I still don't get it - what's the rationale/reasoning/proof (or where is it online)
The 50 move rule is reset by a pawn move or a capture. 15 captures per side are possible in one game. 6 moves per pawn per game are possible.
((6(8) + 15)x2)x50 = 126x50 = 6200
OK I figured there was some formula but I was too lazy (or senile) to try figuring it out. Thanks for providing it.
So what happens in a tournament game if two players decide to keep playing forever without claiming a draw (say time controls have 5 seconds delay, and players take less than that for each move)?
Does the TD eventually steps in to declare it a draw?
10/25/2014 - White To Draw
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