Nonocross Level 4 is a 4×4 nonogram with the answer HELMET. The completed grid contains 13 filled cells out of 16 total — a very dense puzzle (81%). With most cells filled, the empty gaps are the key constraint — trace them carefully.
The puzzle is part of the Levels 1–60 range on the Nonocross Answers hub. Each number in a clue line represents one consecutive run of filled cells; runs are separated by at least one empty cell. The visual grid below shows the verified solution — the clue reference lists every row and column clue so you can cross-check your own attempt. Continue to Level 5 when ready.
Every answer is built from what the level actually shows you and nothing else. Counting that first rules out most of what comes to mind, which is quicker than trying words and being rejected.
Long answers use up the awkward letters and leave a set that spells the short ones out for you. Starting long is consistently faster than sweeping for three-letter words.
Difficulty climbs gradually rather than in jumps, so the levels either side of a hard one reuse its patterns. They are more useful than any hint the game sells you.
The order that clears a board fastest.
Letters, tiles or clues — count them before you start. That constraint is the strongest filter you have.
Each confirmed answer narrows the ones it touches, so the easy entries are worth the first minute.
Follow the chain from what you have placed rather than jumping around the board.
Every answer on this page is read from the game's own puzzle data rather than retyped from another site, and is checked against what the board actually provides — so nothing listed can use a letter the level does not give you. The counts shown are computed from the stored data, not typed in by hand.
Reviewed by Priya Raghunathan, Word Games Editor at Puzzle Solved. The full checking routine is in the methodology, and the standards every page is held to are in the editorial policy.
Last checked — Sep 4, 2026