How to play
and common questions

Only floating tiles can be pressed. Sunken tiles and spaces where tiles have disappeared cannot be pressed. The pressed tile sinks, and tiles that share an edge with it flip state. Corner contact alone does not make tiles neighbors.

In Rise & Sink · All Down, no tiles disappear; clear the puzzle by sinking them all. In Tiles Disappear, after a move, sunken tiles that have no floating neighbor along an edge disappear. When no floating tile remains, all remaining sunken tiles disappear and the puzzle clears.

The hint searches for a route from the current board. If the search reaches its limit, not finding a route is not proof that the puzzle cannot be solved. You can undo a move or restart and try another approach.

Undo returns to the previous move. Redo reapplies a move you undid. Restart immediately returns the current board to its initial layout without a confirmation dialog. It does not delete the puzzle's completion record. Deleting that record is a separate action.

No. Rule explanations and guided examples are separate from real puzzles and do not change your board, progress, or records.

There are 100 puzzles for each rule. Each rule has its own list, organized in groups of ten. The browser demo lets you play three puzzles selected from the app's early levels for each rule.

Resume your saved puzzle from the home screen. You can also start the next unsolved puzzle or choose one from the list. Progress is tracked separately for each rule.

For each puzzle, the app shows whether you have completed it, the completion date, your latest and best move counts, and how many times you have completed it.

No. Export a backup in the app and import it on the other device. Import replaces that device's progress and display settings. The app saves a recovery copy before replacing them.

Choose Japanese or English, one of three text sizes, and one of three tile palettes. You can also turn high contrast, reduced motion, and haptic feedback on or off. State is shown with symbols as well as color.

After clearing a puzzle, the app can create a short video from the tiles you actually pressed. Preview it before sharing. This is not a separate frame-by-frame solution replay feature. Check the destination app to confirm whether it sent or saved the video.

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