Nonocross Puzzle 21
Answers
The finished picture is SMILE — a 8×8 grid with 52 filled squares.
Nonocross Puzzle 21 is a 8×8 grid and the finished picture is SMILE. Of its 64 squares, 52 are filled — a density of 81%, which tells you whether you should be hunting filled squares or blanks.
The solved grid above shows the complete answer with the row and column clue numbers in place, exactly as the game presents them. Hold it beside your own board and compare line by line: the fastest way to find your mistake is to count the runs in a row that looks right and check the total against the 52 filled squares this puzzle should have.
The heaviest single row in this puzzle needs 8 filled squares out of 8, which is usually the right place to start — the more a clue fills a line, the fewer positions it can occupy. Work that line first, then use the crossings to open the columns.
Nonocross Puzzle 21 FAQ
1What is the answer to Nonocross Puzzle 21?+
2How many answers does this level have?+
3Where do I go next?+
4Are these answers verified?+
How Nonocross Works
The same three moves solve most Nonocross puzzles, including this one.
Read the clue runs
A clue of 4 means four filled squares in a row with no gap. A clue of 1,4 means one, then at least one blank, then four.
Start where the clue is largest
In a six-wide row, a clue of 6 fills the row outright, and a clue of 5 guarantees the middle four squares whichever way it slides.
Mark the blanks too
Squares you have proved empty are as useful as filled ones. Marking them is what turns a guess into a deduction.
Nonocross Tips & Strategy
Starting with what this particular puzzle teaches you.
This grid is 81% filled
Most of this grid is filled, so the blanks are the rare thing — find and mark them and the picture falls out quickly.
Heaviest line needs 8
One row here needs 8 filled squares out of 8. The fuller a line, the fewer positions its clue can occupy — start there.
Solve the full rows first
Any row or column whose clue equals its width is completely filled. These are free squares and they give every crossing line a starting anchor.
Use overlap on big clues
In a 10-wide row a clue of 8 has only three possible positions, and the middle six squares are filled in all of them. Overlap gives you certain squares without guessing.
Count the total
Every puzzle page shows the filled-cell count. Add up your own filled squares — if the total does not match, you have an error somewhere, even if each line looks right.
Mark empties with a dot
Nonograms are solved as much by proving squares blank as by filling them. Most stuck grids are stuck because the blanks were never marked.
Nonocross Puzzle 21 In Detail
Everything recorded for this puzzle, counted from its source record.
| Picture | SMILE |
|---|---|
| Grid size | 8 × 8 |
| Filled cells | 52 of 64 |
| Density | 81% |
| Clue numbers | 16 |
| Puzzle | 21 |
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