I´m thinking on a strange variant of Chess: It is forbidden Check the enemy
King. It is offensive, ignominious, and you can´t put the other King in
Check or you lose. Start-up is the same as Chess, and all the pieces
capture identically than in Chess, but with a new rule: once a piece has
moved, another identical piec is created in the starting position of the
piece that have been moved. You lose the game if you Check the enemy King,
or if you are stalemated. I have not tested this variant for playability
yet, so I don´t know how it works, but it should be interesting to see.