Get the lowest score. Cards run from -2 (best) to 12 (worst). The first player to hit 100 or more ends the game; lowest total wins.
If all three cards in a column show the same value, the column is discarded. Free points.
The first player to reveal all 12 cards triggers the end. Everyone else gets one last turn, then totals are added up.
Watch out: if the player who ended the round doesn't have a round total strictly lower than everyone else (same score counts as not strictly lower), their round score is doubled. This applies at any score, including negatives and zero.