How to play
You complete Tapa when every clue's unordered circular run pattern matches, all black cells connect orthogonally, and no two-by-two black area appears. The full Tapa position determines the outcome; visual shortcuts never replace the documented Tapa terminal rule.
- Tapa begins with a rectangular grid with clue cells containing one or more run lengths and every non-clue cell initially undecided. The Tapa deal identity and Tapa standard rules v1 are stored together. Restarting Tapa reproduces this opening exactly.
- During Tapa, you shade non-clue cells or mark them white while fitting circular neighbour runs around each clue and maintaining wall constraints. The Tapa engine rejects profile violations, unavailable material, and every action attempted after Tapa reaches a terminal result.
- You complete Tapa when every clue's unordered circular run pattern matches, all black cells connect orthogonally, and no two-by-two black area appears. The full Tapa position determines the outcome; visual shortcuts never replace the documented Tapa terminal rule.
Strategy tips
- A reliable Tapa plan is to resolve clues whose run total plus required separators nearly fills all eight neighbours, then join forced wall fragments. A Tapa hint is legal and deterministic. The next Tapa hint exposes one bounded action; it never claims a forced Tapa win.
- A costly Tapa mistake is to read clue numbers as fixed compass directions; they specify run lengths in cyclic order but not a predetermined starting neighbour. Undo supports studying that Tapa decision, while restart preserves the original seeded Tapa opening.
- In the Tapa endgame, test rotations around the remaining clue and choose the one that connects wall components without forming a black square. Check every remaining Tapa action before committing because its terminal rule is enforced immediately.