Kuma ken

Kuma ken is a hand game in which each player throws a number from 0 to 5. Higher numbers beat lower numbers, except that 5 is beaten by 0. The primary strategy for kuma ken is to realize that playing the numbers 1, 2, or 3 is pointless, as 4 beats them and everything they beat. Once both parties in a game of kuma ken realize this, the game degenerates into janken (play 0 to beat 5, play 5 to beat 4, play 4 to beat 0).