Instant play

Pocket Lanterns

Pocket logic · light every path

Lanterns

Place lanterns so every open square glows—without any two seeing each other.

Lit0 / 34
Lanterns0
Dark34
Time0:00
Clean wins0
Puzzle #17×7 · Clean run
Unique solution verified
2
1
0
0
1
0
1
1

Tap a cell to cycle clear → lantern → cross. Right-click cycles backward. Slide sideways for larger grids.

Focused cellrow 1, column 1Current mark: clear · dark
Puzzle tools

7 by 7 puzzle 1 is ready. Place a lantern or mark a ruled-out cell.

Lantern rules & controls
  • Place lanterns on open cells. A lantern lights its own cell and every open cell orthogonally until a wall blocks the beam.
  • Two lanterns may not see each other along an uninterrupted row or column.
  • A number on a wall requires exactly that many lanterns in its orthogonally adjacent cells. Unnumbered walls only block light.
  • The puzzle is complete when every open cell is lit, no lanterns see each other, and every numbered wall is exact.

←↑↓→ roam · L lantern · X cross · 0 clear

Hints reveal one cell from the independently verified unique solution. That assistance remains recorded after undo.
✓
Unique solution verified8 numbered walls · generation pass 1
Cleared0
Clean0
Best 7×7—
Daily streak0
Best streak0

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