Rematch/Resign
In December of 1026, King Cnut (known in English legend as King Canute) was playing chess with his brother-in-law, the Jarl Ulf, at a banquet in Roskilde. They started arguing over the chess-board, and the following day one of Cnut's retainers assassinated Ulf (apparently with Cnut's approval).
No rematch for you!