Printable Light Up puzzles, ready for pencil.
Each pack is a black-and-white A4 booklet of Light Up grids, with the answer key starting on its own page. Puzzle pages show black walls, white digits, and a light grid. Answer pages mark each bulb with a filled circle.
- 12 free packs
- 7×7 · 8×8 · 10×10 · 14×14
- Answer key included
- No sign-up
- A4
- A4
- A4
- A4
- A4
- A4
- A4
- A4
- A4
- A4
- A4
Build your own pack
Mix sizes and difficulties in one PDF: a few easy 7×7 warm-ups, then hard 10×10 grids, or print-only 14×14. Up to 100 puzzles, answers included.
- Up to 6 sections
- A4 or US Letter
- Made in your browser
Sections
1 / 6Each section adds puzzles of one size and difficulty, in order.
4 pages: 2 of puzzles, 2 of answers
Your page preview lands here
Press Generate to build 8 puzzles in your browser. Nothing is uploaded, and you can page through every puzzle and answer page here before you download.
How does the pack builder work?
Everything happens on your device. When you press Generate, your browser creates each Light Up grid from the pack seed, solves it to make the answer key, and lays the pages out as a PDF. Nothing is uploaded and there's no account. Four 7×7 grids share a sheet, two 8×8 or 10×10 grids share a sheet, and a 14×14 grid gets its own page unless you tick Large print for one big grid per page. 7×7, 8×8 and 10×10 come in easy, medium and hard, and 14×14 in easy and medium. Each puzzle prints with its number and seed, so answers line up even when you keep them in a separate PDF. The same seed and settings always give the same puzzles. Use Copy share link to send a class or a friend the exact same pack, or press shuffle for a fresh set.
Want Light Up next to Sudoku in one PDF? Build a mixed pack.
Just want one grid?
Open Light Up, choose a size and difficulty, then press Print. You get a single clean sheet of that puzzle.
- 1
Download
Pick a size and difficulty. Every file is a small A4 PDF.
- 2
Print in black & white
7×7 fits four to a page, 8×8 fits two to a page, 10×10 fits two to a page, 14×14 gets a page each.
- 3
Check the answers
The answer key starts on its own page, so you won’t spoil the next puzzle.
About these Light Up packs
Print a Light Up pack and solve it with a pencil. Light Up asks you to place bulbs so every white cell is lit, no two bulbs see each other in a straight line, and every numbered wall has exactly that many bulbs beside it. Each file is a black and white booklet: the puzzles come first with black walls, white digits, and a light grid, and the answer key starts on its own page with a filled circle on every bulb. Packs are split by size and difficulty: 7×7, 8×8 and 10×10 at easy, medium and hard, and 14×14 at easy and medium for print only. A 7×7 sheet holds four puzzles, an 8×8 or 10×10 sheet holds two, and a 14×14 sheet holds one. Seeds are fixed, so the same download always has the same grids. Each single pack has eight puzzles, and the starter pack has eleven, one from each shipped band. To try one grid on screen first, open Light Up and use Print or Download PDF there.