Checkmath

Checkmath is an abstract game played on a 10x10 board with spaces numbered from 1-100. Each player has a set of 10 pieces numbered 1-10.

Players set up their pieces on the opposite ends of the board and take turns moving one piece forwards by one row. A piece can only move to a space which is a multiple of its number, but it can move to any such space in the next row (adjacency is not a factor). (In the first version of the game, and possibly others, the "10" pieces were numbered "10/11" and could move to multiples of either number.)

If a piece lands on an opposing piece it captures. If a piece reaches the opposite end of the board it is crowned (flipped over) and can now move one row backwards or forwards.

The winner is the player who captures all the opposing pieces.