積と罰 (Crime and Punishment)

The cards come in 4 colors numbered 1 to 8, and you build a stack in front of you.

On your turn, take a card from your hand, the common area, or the deck and stack it on your pile so the card below stays visible. If that card below differs in both color and number, it is destroyed and goes to the common area, and the comparison carries on down the stack.

You can also set aside a scoring set: three of the same number, or a suited run. Once set aside, they are safe from destruction, but worth less.

At the end of a round, stacked cards score 2 points each and set-aside cards 1, with 3-point bonuses for the most of each. Play rounds until someone reaches 50 points.