Free printable akari
Akari, often called Light Up, is a Japanese logic puzzle on a grid of white cells and black walls. You place lamps so every open square is illuminated, lamps never shine on one another, and a numbered wall has exactly that many lamps touching it. This 10x10 is aimed at solvers who already enjoy Nikoli-style puzzles and want a compact page they can finish with a pencil.
Solution page included
Peek at the solution
This download is a 6x9 inch high-resolution PNG of Puzzle 1, plus a matching solution that shows where every lamp belongs. There is no signup, no interactive board, and no PDF — print the PNG whenever you want a sitting-down logic session.
How to play
- Study the 10x10 grid: black squares are walls; some walls show a 0, 1, or 2, and some walls are unnumbered.
- Place a lamp on a white cell so it lights its entire row and column until a wall stops the beam.
- Light every white cell, but do not let two lamps see each other along a row or column.
- A numbered wall must have exactly that many lamps in the four orthogonally adjacent white cells; a 0 wall has none.
- Unnumbered black walls still block light; they just do not constrain how many lamps touch them.
Print at 100% scale on letter or A4 so the 10x10 wall numbers stay readable.
Frequently asked questions
Does this Akari printable include an answer key?
Yes. A separate solution PNG shows the finished lamp placement on the same 10x10 grid. Compare it after you think every white cell is lit, or use it to check a single numbered wall that will not add up.
Do I have to pay or sign up to print this Akari?
No. The puzzle is a free PNG you can download and print without creating an account. There is no email gate and no watermark on the page. Print it as often as you need.
Who will enjoy this Akari puzzle?
It is a good fit for teens and adults who already like Japanese logic puzzles such as Sudoku, Slitherlink, or Nurikabe. The 10x10 size is compact enough for a single sitting, but the no-glare lamp rule still takes careful counting. Younger solvers can try it if they can follow the printed instructions.
What is the best way to print this Akari page?
Send the PNG to the printer at 100% scale on letter or A4 paper so the 6x9 inch page is not scaled down. A full-size 10x10 keeps the wall numbers readable and leaves room to mark lamps and lit cells. Avoid fit-to-page, which shrinks the grid.
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