Father and child place eight coins in a row. The idea is to take a coin, jump over two coins and place it on top. Then take another coin, jump over two more coins and place it on top. The object is to finish up with four double coins like "Kings" in checkers. You must jump two each time. When a coin becomes a King it is counted as two coins.
Solution: Move 5 to 2, 3 to 7, 8 to 6, 1 to 4.