Brazilian draughts rules

A man captures by jumping an adjacent enemy piece onto the empty square beyond it - forwards or backwards, on any of the four diagonals - and must keep jumping while the piece that landed can jump again. The whole chain counts as one move.

Capturing is compulsory, and so is the maximum: with several sequences available you must play one that takes the greatest number of pieces. On a board this size, a five-piece chain is a third of an opponent's army, so the maximum-capture rule decides games rather than merely shaping them.

Jumped pieces stay on the board until the sequence is finished and none may be jumped twice - and because they are still standing, an already-jumped piece blocks a later leap in the same chain.

A man that ends its move on the far row is promoted. A man that passes over the far row mid-capture and jumps onward is not: it finishes the chain as a man and waits for another day.

A king moves any distance along a free diagonal and captures at a distance, landing on any free square beyond the piece it took - the choice of landing square is usually the choice of whether the chain continues.

You win when your opponent has no pieces or no legal move. The game is drawn on the third occurrence of the same position with the same player to move, or after 100 plies without progress - a capture, a promotion, or a man advancing a rank.

That 100-ply limit is the one number that differs from the 10×10 game, which allows 120. Fewer pieces on fewer squares means an endgame that is going nowhere gets there faster.

Same board as English checkers, opposite rules: there men capture forwards only, kings step one square, and no maximum applies. Same rules as international draughts, smaller board: twelve men instead of twenty, and a hundred-ply draw limit instead of a hundred and twenty.