How to play
You complete Tile Puzzle when all sixteen tiles occupy their exact ascending target positions. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim.
- Tile Puzzle opens from a versioned seeded position built for a deterministic shuffled 4-by-4 numbered grid whose action exchanges any two selected tiles rather than sliding into a blank. Its game ID, rules profile, and deal identity are stored together so restart recreates the same opening without a server request.
- Every Tile Puzzle action is checked against the current board, available material, and this defining restriction: each action must name two different occupied positions, those two tiles swap directly, and a blank-space or adjacent-slide rule is never used. Invalid, stale, or post-terminal actions leave the position unchanged.
- You complete Tile Puzzle when all sixteen tiles occupy their exact ascending target positions. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim.
Strategy tips
- A practical Tile Puzzle plan is to preserve several legal continuations around a deterministic shuffled 4-by-4 numbered grid whose action exchanges any two selected tiles rather than sliding into a blank. Use the deterministic hint to inspect one legal action, then compare how it affects the documented objective before committing.
- A common Tile Puzzle error is to ignore the boundary rule that each action must name two different occupied positions, those two tiles swap directly, and a blank-space or adjacent-slide rule is never used. Undo is useful for studying that decision, while restart deliberately preserves the original seeded position.
- Near the end of Tile Puzzle, recount the remaining obligations needed until all sixteen tiles occupy their exact ascending target positions. Check the boundary rule after every final placement or transfer because terminal status is enforced immediately.