Moving Circles

Lewis Holland

Solve the Following Puzzle!

Consider the 3-by-3 board below. Blue disks move like knights, two squares in one direction and one square in another direction 90 degrees to the right or left; red disks move like rooks, any number of squares up, down, right, or left. The goal is to get the disks marked with A, B, C, or D to the corner with the matching letter.

Diagram of puzzle

Solution

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