Nonograms

Each number is a run of filled squares in that row or column, in order. 3 1 means a run of three, at least one empty square, then a run of one. Fill a square when every arrangement that fits the clue fills it, and cross it when none can.

Start with the long runs. In a row of 10, a clue of 7 must cover the middle four squares wherever it sits. Every square you settle changes what the crossing line allows.

Every puzzle here can be finished one line at a time, without guessing.

Mouse and touch

Click or drag to fill. Right-click, or switch to Cross, to mark squares that stay empty. On a touch screen, pinch or drag with two fingers to zoom and move a large board.

Keyboard

← ↑ → ↓

Move

Space

Fill or clear

X

Cross or clear

Shift + arrow

Move and repeat the last mark

Delete

Clear the square

Home End

First or last square in the row

Page Up Page Down

First or last square in the column

Ctrl Z / Ctrl Y

Undo, redo

H

Hint

M

Switch between Fill and Cross

+ −

Zoom