PAINT TRAIL MAZE · TAPCAPER

Level 109: Crossing the atrium

7 × 6 · 30 paint targets · switch & gate

CORAL STUDIO · HARD

Level 109 /120

Crossing the atrium

3% painted0 moves29 proven minimum
Gate A: closedASwitch B: toggles its matching gates on every visitBGate A: closedASwitch A: toggles its matching gates on every visitAGate B: closedB

Slide to the wall. Paint every dotted floor tile.

Best: not yet painted. 0/120 complete. New ball skins at 10, 20 and 30 clears.

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Reading this maze

Crossing the atrium starts at row 5, column 4. Of the 42 grid positions, 30 are paintable and 12 are walls. The start is already painted; the other 29 tiles remain to be reached.

Diamond A at row 5, column 6 toggles both barred cells marked A. Diamond B at row 1, column 3 toggles the gate marked B. Start up and stop at row 4, column 4. Both A gates share one state, while B stays independent; plan the closed bars as stopping points. The first slide covers 2 of 30 target tiles.

The verified opening crosses 1 tiles before stopping. A breadth-first search proves a 29-slide finish from this exact starting board; that is a reference target, not a move limit. You may revisit any painted tile.

Opening board for Crossing the atrium: 30 paintable tiles, ball at row 5, column 4

A and B keep separate states. The A diamond toggles both A gates together, while the B diamond toggles only B. Every barred cell must be painted. Undo restores all gate states, and Hint searches your current trail.