Educational game using keyboard marked with numbers - has keys rocked on axle between walls of case to represent numbers thrown by dice

摘要

The game consists of a keyboard with nine keys, each marked with a number. The keys are mounted on an axle and pivot to show that they have been used. One end of the keys rests on a crossbar. - The keyboard is mounted in a case and the axle extends between one wall and a parallel wall which partitions off one corner. Dice are put in the partitioned corner and are thrown by each player. The number thrown is represented by depressing the appropriate keys. The player with the lowest number showing on the keys wins.