2 players. Start with rows of 3, 5 and 7 stones; first joined player starts. On each turn remove any positive number from exactly one row, including the whole row. Empty rows cannot be selected. Taking the final stone on the board wins immediately. Classic normal-play Nim, not the last-stone-loses variant. Original stone artwork, no stakes.

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