Peg solitaire puzzle

How to play a puzzle

The rules are the same on every board.

1. Each jump needs two neighbouring marbles in a straight line and an empty hole immediately beyond them. The jumped marble is removed; every jump reduces the count by one.
2. On square grids, jump horizontally or vertically. On the triangle, use any of the six directions parallel to its three sides. A diagonal on a square grid is never legal.
3. The marked hole is the required finish. One marble somewhere else is a different result, not a win in this target puzzle. You can undo a jump and explore a different route.
4. Our counter records individual jumps. Mathematical books sometimes group several jumps by the same marble into one “move”; those totals are not comparable.

Click or tap a marble. If only one jump is possible it happens at once; if there are several, outlined holes show where it can land. You can also drag a marble, or use the keyboard: arrow keys, Enter or Space, Escape to clear and Ctrl or Cmd with Z to undo.

Tips

• Marbles left minus one is the number of jumps still to make.
• Work backwards from the ring: the last jump needs exactly two marbles in line with it.
• Restart starts this puzzle again; Undo only takes back one jump.