15 Puzzle
One empty square, fifteen tiles. Slide the numbers into order and find room for your next move.
One peg jumps over a neighbor into an empty hole. Remove the jumped peg, then plan the next landing. Start with a short endgame or take on the traditional 32-peg board. One peg left anywhere is a win.
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SIMPLE TO START
Tap or click a peg, then its blue landing hole. Arrows move focus without wrapping; Enter or Space selects, Escape clears selection, and Z or Ctrl/Cmd+Z undoes. Restart asks for confirmation.
Each start saves its peg positions, selected peg, keyboard focus, jump count and undo history in this browser. If storage is unavailable, switching starts preserves progress during the current page session.
An independent implementation with original code and artwork. The English cross and central-vacancy classic start are traditional public game rules and layout, not an original opening claim. Puzzle Grove independently reverse-generated the 12 finite endgames and verified legal solution routes, plus a complete 31-jump route for the classic board. No third-party puzzle catalog is copied; no unique move-sequence or calibrated-difficulty claim is made.
Made by Puzzle Grove.