The Jumping Coins

Solution

5 - 4, 3 - 5, 2 - 3, 4 - 2, 6 - 4,
7 - 6, 5 - 7, 3 - 5, 1 - 3, 2 - 1,
4 - 2, 6 - 4, 5 - 6, 3 - 5, 4 - 3.

The minimum possible number of moves for this puzzle is 15. One of possible solutions is given on the left. In the solution the numbers correspond to the board's cells. Every move is shown as two numbers - start and finish cells.