Register Game

Select your group to start:

Move History (last five moves)

    Goal: Change every bit to a 1

    Instructions
    • Flip or shift the register using the given move buttons.
    • You have to use the least number of moves to achieve the goal.
    • Hint: the solution is 4 digits long and the submission box is at the bottom

    Type the optimal 4-move sequence as a single 4-digit number (first to last)