15x15 Nonogram: Steam Train
A 15x15 nonogram for ages 10 and up, the size of a classic picross puzzle: 225 squares and up to five numbers per line. Solve it row by row and column by column to reveal a steam train with a smokestack and cab. No guessing needed; answer key on page 2.
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- Size
- US Letter (8.5 × 11 in), fits A4
- 2 pages: the puzzle and its answer key
- Level
- Hard
- License
- Free for personal & classroom use
About this puzzle
A 15x15 nonogram for ages 10 and up, the size of a classic picross puzzle: 225 squares and up to five numbers per line. Solve it row by row and column by column to reveal a steam train with a smokestack and cab. No guessing needed; answer key on page 2. It is a hard puzzle page for ages 10 and up, and grown-ups will enjoy it too.
Tips for using it
- Use a pencil and shade lightly; mark squares that must stay empty with a small X.
- Start with the biggest numbers and the lines that are almost full.
- Check each row against its numbers before moving on; one wrong square spreads to the columns.
- Cover the answer key (page 2) or print only page 1 for the kids.
Printing tips
Download the PDF and print at 100% (or “fit to page” on A4). Page 1 is the puzzle and page 2 is the answer key with the answers in red; print just page 1 if you want to keep the answers for checking. Free for personal, family and classroom use.
