Triangle peg solitaire solution
Start with a1 empty. Make 13 jumps and the last marble lands on a1. This is one verified route, so use it to check your own idea, or to see how an old puzzle is finished.
How to read it
Every jump is written as two holes, like a3 → a1: the marble that moves, then the empty hole it lands on. The marble it jumps over is removed. Every hole shows its name on the board, and the next jump glows. Click any number to see the position after that jump, or use ← / → to step and Space to play.
The route in brief
- Jump 1: a3 → a1. Replay from the start
- By jump 8 the lower-left corner is empty. Show it
- By jump 11 the lower-right corner is empty. Show it
- Before the last jump only a2 and a3 are left. Then a3 → a1 ends on a1. Show the last jump
Where players go wrong
These jumps look natural, and each one leaves a position that can no longer reach a1.