Bug. Game suddenly ended in a draw. No repetition and no 50 moves rule violation.

During this discussion I remember that it's not always clean for players why draw result is set. So I suggest to implement a notification which explains why draw is set: three-fold repetition, 50-move rule, stalemate or other. Sometimes you get a draw, but you don't know if it was a 50-rule move, or 3-fold repetition (or both), because 3rd repetition may occur much later than 2nd, and for player it is difficult to remember exact position (including which player is to move).

It says if it was 3 fold repetition when the draw is declared.

#21 What should be shown in case of a 300-move game which ends in either an insufficient material stalemate or a 3fold repetition 50-move rule?