- Setup. 8×8 board, dark squares only. 12 pieces per side. Red moves first (toward the top).
- Move. A man moves one square diagonally forward to an empty dark square. Kings can move forward or backward.
- Capture. Jump diagonally over an adjacent opponent piece into the empty square beyond. Captured pieces are removed.
- Mandatory. If you can capture, you MUST capture. If multiple captures chain together, you must take the longest available chain.
- King. Reaching the opposite back rank promotes a man to King (♛). Kings move and capture in both directions.
- Win. Capture all opponent pieces, or leave them with no legal move.