If the target decimal is an odd number , the furthest bit to the right (the 1s column) must be 1. If it's even, it must be 0.
Players are presented with a grid of 8 bits (a byte). Your goal is to toggle individual bits (0 or 1) to match a target decimal number, or vice versa—identifying the decimal value of a pre-set binary string. As the game progresses, the timer speeds up, forcing you to move beyond manual calculation and toward "instant recognition." Why Binary Matters in 8.2.6