Robert A. Hearn’s Martin Gardner-inspired, coin-sliding puzzle takes sliding-coin puzzles to the next level. Instead of solving the puzzle in the fewest number of moves, these puzzles are similar to sliding-block puzzles in that there are specific places where coins need to land in order to solve.
- Source: Robert A. Hearn (featured on Ivars Peterson’s Blogspot)
- Time Required: less than 15 minutes
- You’ll Need: coins, paper, and pen/pencil