Tafl

The Fleet — thirteen ships, one flagship among them — begins at the center of an 11×11 chart. The Blockade surrounds it with twenty.

1. 01On each turn, make two moves — or one diagonal capture.
2. 02Non-capturing moves travel any distance along a row or column.
3. 03No piece may jump over another.
4. 04Captures take one square on the diagonal.
5. 05If the flagship moves, it consumes the whole turn.
6. 06A piece that has just moved cannot move again this turn.