Free online 10x10 nonogram — hard

A grid ready to play below — tap or click to fill, ✕ to mark blanks. Solvable by pure logic.

Why play hard 10x10?

The 10×10 is the classic nonogram format: big enough to demand real row-column cross-checking, compact enough to finish in about fifteen minutes. It’s the ideal size for levelling up.

On hard, the grid is sparse: every cell is earned, the back-and-forth multiplies, and the advanced techniques — overlap, edge logic — earn their keep on every line.

This page’s grid has 49 filled cells out of 100 (49%) and resolves in 6 propagation passes — verified solvable without ever guessing, like all our grids.

Keep going

• The full game110 pictures + Daily challenge
• Learn to solveinteractive beginner guide
• Step-by-step solverpaste your clues
• Printable 10x106 paper grids
5×5 hardsame difficulty15×15 hardsame difficulty20×20 hardsame difficulty10×10 easysame size10×10 mediumsame size