Koi-Koi (Koikoi) is a popular Hanafuda (Japanese playing card) game.
How to Play Koi-Koi (Koikoi)
Players take turns discarding cards onto the table. Matching cards by month allows a player to collect them. Collecting all cards of a suit results in a point-scoring "flush." Players can choose to continue the game or end their turn. A game without any scoring results in no points for either player. The winner is the player with the most points accumulated over twelve rounds of play. Game records are automatically saved.