Light Up #23

Wednesday, October 21, 2026 · medium · 8×8 grid · LogicPuzzle.io

This sheet prints light up puzzles #23 from the daily archive for Oct 21, 2026 (medium). Today's sheet is a 8 by 8 grid holding 19 walls, 8 of them numbered (including one zero wall); the solver must place exactly 11 bulbs so every white cell glows. Print it with your browser's print dialog (Ctrl/Cmd + P) and check yourself against the solution on the last page. Prefer to solve on screen instead? Play this puzzle online, or browse more printable light up puzzles from past days.

Method: keep a running tally per numbered wall. When a wall reaches its number, bar the rest of its neighbors; when it needs every neighbor it has left, draw them all. Re-scan unlit cells after each bulb. The full step-by-step method is in the how to play light up puzzles guide.

Place bulbs on the white cells

	1
2			0
				2

		1	2	1


				1

Mark each bulb with a dot and cross out cells a bulb shines on; every white cell must end up lit, and no two bulbs may see each other.

Solution: Light Up #23

	1
2			0
				2

		1	2	1


				1