🧠Cerebite

Nonogram

The numbers give the lengths of the filled runs in each row and column, in order. Fill the right cells to reveal the hidden picture.

Size
Time 0:00

How to play

Each number is a run of consecutive filled cells; multiple numbers on one line are separated by at least one empty cell, in the order shown. Tap to fill a cell; switch to ✖️ mode (or right-click) to mark cells you know are empty — X marks are just notes and never count against you. Start with big numbers and full lines: a "10" fills its whole row, and a "7" on a 10-wide line forces the middle 4 cells. Every puzzle here is generated and verified to be solvable line by line with pure logic, so you never have to guess.

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Frequently asked questions

Do I ever have to guess?
No. The generator only publishes a board after verifying that it can be completed using row-and-column logic alone, which also guarantees the solution is unique. If you are stuck, some line always has a forced cell — re-scan rows and columns you have partially filled.
What do the X marks do?
They are your own notes for cells you have deduced must stay empty. They are never graded and do not affect winning — the puzzle completes as soon as all the correct cells are filled, whether or not you marked any X.
Where should a beginner start?
Start on 5×5 and learn the two core moves: lines whose numbers (plus gaps) fill the whole width, and the overlap trick — a single large number forces its middle cells. Once those feel natural, 8×8 adds longer chains of deduction and 10×10 becomes a satisfying picture reveal.