Players program a simple Turing Machine, also known as a State Machine. One cube, called the pointer is positioned opposite a line of 7 other cubes, called the tape. For each state that the pointer/tape is in, a player writes an instruction changing the state, and moving the pointer. Points are scored for the number of times the pointer moves, unless the pointer moves past the end of the tape (a bug) or gets trapped in an endless cycle of instructions (a loop). The rulebook contains the instructions for a more complex version (Time-Sharing) and 4 simpler games, designed to introduce the concepts in the base game for younger players.

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