Pixel Logic — free nonogram sampler

Solve the logic — reveal the picture. Five free nonograms (picross / hanjie / griddlers), playable right here in your browser. Every solved grid turns into a pixel drawing: a plus, a key, a cat, a heart, an hourglass.

Every puzzle is computer-verified: exactly one solution, reachable with pure line logic. No guessing, ever. If you are stuck, there is always a deducible cell somewhere.

How to play: numbers are the lengths of the runs of filled cells in that row/column, in order. Left-click fills, right-click marks an empty cell (on touch, use the Fill/Mark buttons). Completed lines fade their clues.

Liked these five? The full book has 100 solver-verified picture nonograms (40 warm-up 10×10, 35 medium 15×15, 25 challenge 20×20), printable at home on A4, plus a playable version of all 100 (one file, works offline, saves progress) — plus a free 10-puzzle printable pack on the same page: Pixel Logic — 100 Nonograms.

More free nonograms from the studio site: 10 printable puzzles, a step-by-step solving guide, and a lesson plan for teachers with the sheets ranked by difficulty.