🖼️

Nonogram

Use pure logic to reveal the hidden picture, one clue at a time.

Hard

Filled: 0 / 9Mistakes: 0Checks: 0⏱ 00:00

Numbers tell you the lengths of consecutive filled blocks in each row and column. Fill mode paints picture cells; Mark mode (or right-click) places an ✕ on cells you know are empty. Drag to paint many cells at once. Press Check to catch mistakes.

How to Play

The numbers beside each row and above each column tell you the lengths of the consecutive filled blocks in that line, in order.

Use Fill mode to paint cells that must be part of the picture; drag to paint several at once.

Use Mark mode (or right-click) to put an ✕ on cells you have proven empty — good marks make the logic much easier.

Press Check whenever you like: wrongly filled cells flash red and count as mistakes, but the rest of your work stays untouched.

Fill every picture cell exactly to complete the puzzle — the hidden picture appears in colour.

Controls

Click / dragFill cells (in Fill mode) or mark ✕ (in Mark mode)

Right-clickToggle an ✕ mark on a cell

✓ CheckVerify your filled cells

Puzzle buttonsChoose from 7 pictures (5×5, 10×10, 15×15)

Tips

•Start with the biggest clues: a 10×10 row with clue 8 or more forces the middle cells to be filled.
•Where two clues plus their separating gap exactly equal the line length, the whole line is decided.
•Mark ✕ at both ends of a completed block — it prevents the most common mistakes.

About Nonogram

Nonogram (also called picross) is a pure-logic picture puzzle: the numbers beside each row and above each column describe the lengths of the consecutive filled blocks in that line, and by combining row and column information you can deduce exactly which cells belong to the picture. This version includes seven hand-designed pictures — a plus, a heart and a house at 5×5, a rocket, a fish and a sailboat at 10×10, and a pine tree at 15×15 — and every completed picture is revealed in its own colour.

Two tools make the logic manageable: Fill mode paints picture cells (drag to paint a whole run at once), while Mark mode — or a right-click — places an ✕ on cells you have proven empty, which is the key habit of experienced picross players. A mistake counter and a Check button keep you honest: pressing Check flashes any wrongly filled cells red and counts a mistake, but leaves correct work untouched and never reveals cells you have not found, so checking is a safety net rather than a spoiler.

How to Play Nonogram

Choose one of the seven pictures: 5×5 puzzles teach the rules, 10×10 adds real deduction, and the 15×15 pine tree is the full challenge.

Read the clues: in a row marked 3 1 there is a block of exactly 3 filled cells, at least one gap, then exactly 1 filled cell.

Use Fill mode to paint cells you are sure about; drag across cells to paint a run in one motion.

Use Mark mode or right-click to ✕ cells you have proven empty.

Press Check to verify your filled cells — wrong ones flash red and add a mistake. Fill the picture exactly to win.

Controls

Click / dragFill cells in Fill mode, or mark ✕ in Mark mode

Right-clickToggle an ✕ mark on a cell at any time

⬛ Fill / ✕ Mark buttonsSwitch the active painting mode

✓ CheckVerify filled cells (wrong ones flash and count as mistakes)

Puzzle buttonsChoose any of the 7 pictures

Tips & Tricks

💡Start with the largest clues: in a 10-wide row, a clue of 7 or more forces the centre cells to be filled no matter where the block starts.
💡When a block is complete, mark ✕ on both sides of it immediately — most errors come from accidentally extending a finished block.
💡Cross-reference constantly: every cell you fill in a row is also a fact about its column.
💡If a line's clues plus their minimum gaps exactly equal the line length, the whole line is forced — look for these free wins first.

Nonogram — Frequently Asked Questions

What do the numbers mean in a nonogram?+

Each number is the length of one consecutive run of filled cells in that row or column, in order. A clue of 2 3 means a run of 2, then at least one empty cell, then a run of 3. A clue of 0 means the entire line is empty.

Does the Check button give away the solution?+

No. Check only looks at cells you have already filled: wrongly filled cells flash red and add one mistake to your counter, and it tells you how many picture cells remain. It never marks or reveals unfilled cells.

What counts as a mistake?+

Each press of Check that finds at least one wrongly filled cell adds one mistake. The timer and mistake count are shown at the end so you can chase a clean, fast solve.

Which puzzle should a beginner start with?+

The 5×5 Plus and Heart puzzles teach clue reading in a couple of minutes. Move to the 10×10 Rocket once marking ✕ feels natural, and save the 15×15 Pine Tree for when you want a longer deduction session.