an impossible guess, (e.g. guessing 20 but only putting in a fist and a palm for 5 points) then that person gets a strike. Two strikes would result in a point for the other player. See also Chopsticks (hand game) - a hand-game based on logic rather than chance. Matching pennies - a game of chance, using coins instead of fingers. Rock paper scissors - a hand-game of chance, in which each player has three options. Spoof (game) - a game of chance, in which each player has to guess the total number of coins held by all players. Horsengoggle - a hand-game of chance, used to select a single person from a group. Notes References Carcopino, Jerome. Daily Life in Ancient Rome. Suetonius, The Twelve Caesars. Ifrah, Georges. The Universal History of Numbers. External links Art Academy of Cincinnati Finger-counting Hand games Parity (mathematics)