How to play
You complete Tatamibari when the completed grid satisfies the aspect clued rectangles constraint set, every fixed clue, and the profile's whole-board completion test. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim.
- Tatamibari opens from a versioned seeded position built for One clue per rectangular region fixes its aspect class, and region boundaries never meet four ways. The independent runtime records this exact aspect clued rectangles rules identity. Its game ID, rules profile, and deal identity are stored together so restart recreates the same opening without a server request.
- Every Tatamibari action is checked against the current board, available material, and this defining restriction: One clue per rectangular region fixes its aspect class, and region boundaries never meet four ways. Partial assignments remain legal only while at least one completion still satisfies those constraints. Invalid, stale, or post-terminal actions leave the position unchanged.
- You complete Tatamibari when the completed grid satisfies the aspect clued rectangles constraint set, every fixed clue, and the profile's whole-board completion test. The engine evaluates the full position rather than relying on a visual shortcut or an unsupported solvability claim.
Strategy tips
- A practical Tatamibari plan is to preserve several legal continuations around One clue per rectangular region fixes its aspect class, and region boundaries never meet four ways. The independent runtime records this exact aspect clued rectangles rules identity. Use the deterministic hint to inspect one legal action, then compare how it affects the documented objective before committing.
- A common Tatamibari error is to ignore the boundary rule that One clue per rectangular region fixes its aspect class, and region boundaries never meet four ways. Partial assignments remain legal only while at least one completion still satisfies those constraints. Undo is useful for studying that decision, while restart deliberately preserves the original seeded position.
- Near the end of Tatamibari, recount the remaining obligations needed until the completed grid satisfies the aspect clued rectangles constraint set, every fixed clue, and the profile's whole-board completion test. Check the boundary rule after every final placement or transfer because terminal status is enforced immediately.