fish · medium · 20x20

Whale 20x20 Nonogram

Play Whale 20x20 Nonogram, a 20x20 medium nonogram puzzle.

Difficulty
Medium
Grid
20x20
Category
Fish
whalefishmedium20x20picrossnonogram
Time 00:00 Progress 0% Ready

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About this puzzle

Whale 20x20 Nonogram sits in the fish theme as a medium 20x20 picross board. 156 of its 400 squares are filled, so it reads as a fairly balanced grid at roughly 39% coverage.

The biggest single run here is 18 cells long — fill that first and the surrounding lines fall into place faster. Expect to spend roughly 4 minutes from a blank grid to the finished picture.

How to solve this nonogram

At this size, work the longest clues first, then use the cells they force to crack the shorter lines around them. With balanced coverage, alternate between filling forced cells and ruling out empties to keep both kinds of clue moving. Turn Challenge mode on for instant feedback on mistakes, or leave it off for a calmer solve.

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FAQ

FAQ

What size is Whale 20x20 Nonogram?

Whale 20x20 Nonogram is a 20x20 medium nonogram, so you can expect a balanced solve.

Does this puzzle save my progress?

Yes. Your moves and timer are saved in the browser after every action, so you can close the tab and come back later without losing anything.

How do I check for mistakes?

Tap Check any time for a manual review, or turn on Challenge mode for immediate feedback as you play.

What do the X marks do?

X marks flag cells you've proved are empty. They don't affect the solution, but they make bigger grids much easier to track.