🖼️ Pixel Cross
Number clues down the sides. Fill the right squares and a hidden picture appears.
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How to play Pixel Cross
- Numbers beside each row and above each column describe the filled runs in that line.
- A clue of 4 2 means a block of four filled squares, at least one gap, then a block of two.
- Left click or tap to fill a square. Right click, or long press, to mark it as definitely empty.
- Fill every square the clues require and the hidden picture appears.
Controls
| Input | Action |
|---|---|
| Click / tap | Fill a square |
| Right click / long press | Mark a square as empty |
| Click and drag | Fill or mark a whole run |
| Z | Undo the last change |
| H | Reveal one correct square |
| F | Enter or leave full screen |
| Esc | Leave full screen |
Tips & strategy
- Start with the longest clues. In a fifteen-wide row a clue of twelve leaves only a few possible positions.
- Overlap is the core technique: shade the squares that are filled in every possible placement of a run.
- Mark empty squares aggressively. Knowing where a run cannot go is as useful as knowing where it can.
- A clue whose numbers plus minimum gaps equal the line length is fully determined — fill it immediately.
Frequently asked questions
Do I ever have to guess?
No. Every puzzle is generated and then checked to be solvable by line-by-line deduction alone, so logic is always enough.
What do the crossed-out squares do?
They are your own notes marking squares you have proved empty. They never affect whether the puzzle is complete — only filled squares do.
What are the grid sizes?
Five by five for a quick solve, ten by ten as the standard, and fifteen by fifteen when you want a long sitting.