Two players have nine stones each; White places first. Alternate placing onto empty points. After all stones are placed, move along a line to an adjacent empty point. With exactly three stones, fly to any empty point. A newly formed mill grants a separate removal of one opposing stone, even when two mills form together. Remove a stone outside mills first; only if every rival stone is in a mill may any be taken. Breaking and rebuilding a mill is allowed. Win when the rival has fewer than three stones in total or no legal move in the movement phase. Casual house rule: the third identical board, reserves and player to move draws automatically. Resigning is allowed.

Rooms expire 24 hours after the last action. Refresh to reconnect; leaving ends the current game.