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Tjatoer!. A chess variant written in Python, designed to stress test engines.[All Comments] [Add Comment or Rating]
H. G. Muller wrote on 2021-06-26 UTC

BTW, why 5-fold repeat? Surely no one would be so stupid that when he sees a certain move sequence leads to a repetition, that he would play that move again a 2nd, 3rd and 4th time?

I am also not sure it is useful to allow 100 reversible moves instead of 50, despite the bigger board. Most pieces are so strong they can deliver checkmate singlehandedly. The Lance even in the middle of the board! And because baring is a win, you won't have lengthy mates like KBNK. You should amend the rule to also reset the counter on promotion, though. (Since you also have non-Pawns that can promote.)

The drawback of a generous move limit is that the game gets very boring in positions that are genuine draws, and one of the players doesn't want to admit it. (99 moves, push a Pawn 1 square, 99 moves, push another square...) So it is generally better to have a tight limit, but smart recognition of true progress towards a win for resetting the counter.