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A target decimal number is shown at the top. Your goal is to match it by flipping bits on or off.
Use the Arrow Keys (or A/D) to move the selector left and right.
Press the Spacebar or Enter to flip the selected bit (from 0 to 1, or 1 to 0).
The values above the bits show what each position represents. Your "Current Value" is the sum of the values of all the '1' bits.
Match the target number as quickly as you can! When you succeed, a new number will appear. See how high you can get your score in 60 seconds!