Pixel Logic

Nonogram puzzles: fill the grid so every row and column matches its number clues and reveal a pixel picture. Solvable by logic alone.

Pixel Logic

Nonogram puzzles, also known as Picross or 네모로직. The numbers beside each row and above each column give the lengths of its filled blocks, in order. Fill the cells that fit every clue, and a pixel picture appears in colour.

Every puzzle is checked to be solvable by logic alone: you never have to guess.

How to play

1. Pick a difficulty and press Start solving.
2. Read a clue: “3 1” means a block of 3 filled cells, then at least one empty cell, then a block of 1.
3. Tap a cell to fill it, tap it again to clear it, or drag to fill a whole line in one go.
4. Mark cells that must stay empty with a cross: switch the tool button, or right-click. Crosses are

notes and never count as filled.

1. The puzzle is solved the moment the grid fits every clue. Solve all puzzles of the run.

Difficulties

Normal, Hard

Puzzles, 3, 2

Grid, 10 × 10, 15 × 15

Finished clues, Turn grey, Stay as they are

Time

• Your score is the total time to solve every puzzle, to a hundredth of a second. Lower is better.
• Normal and Hard have separate leaderboards.
• Wrong fills cost nothing but time: a puzzle is simply not solved until it fits every clue.
• The short reveal between puzzles is not timed. The clock stops while the game is paused, and the

grid is hidden.

Controls

Action, Mouse and touch, Keyboard

Fill or clear a cell, Tap, Arrow keys, then Space or Enter

Cross a cell, Right-click, or the cross tool, X

Fill a line, Drag, —

Switch tool, Tool button, T

Undo, Undo button, Backspace or Ctrl+Z

Pause, Pause button, Esc or P

Clear empties the grid and can be undone. Sound, reduced motion and the interface language (English, Korean, Japanese, Chinese) can be changed at the top of the game.

Tip

Look for overlap. In a row of 10, a block of 7 covers the middle four cells wherever it goes, so those cells are filled. Cross off cells that no block can reach.