One of my games says: - Move 32 - Half Moves 3 What does the second line mean? In this game it is 6 half-moves since anything was last captured. For reference I'm talking about game 11236404
...Sorry I think I've managed to work it out for myself The rule is the number of half-moves since a capture OR a pawn move. (I think we're allowed 50 of them, then it becomes a draw.) Issue closed I think.