6 printable hard 15x15 nonograms

Six grids verified solvable without guessing, ready for paper: crisp clues, pure black and white, optional solutions on a separate page.

Puzzle 1

2
5
2
1
1
2
1
1
7
3
2
5
1
2
1
1
1
2
6
1
1
4
4
3
3
2
2
3
2
1
4
2
3
1
1
3
3
2
6
1
2
1
1
5
2
3
1
2
2
3
2
1
3
1 4 1 2 1
1 1 1 2 4
2 1 2 1
3 1 1 1 1
1 1 4 1
2 2 1 1 2
1 4 1 1
2 7 4
3 7 1
1 1 1 3
1 2 4 1 1
2 4 2
3 1 2 1 1
3 2 5
3 1 1 1 2

Puzzle 2

2
2
2
2
2
1
2
1
3
1
2
2
1
2
3
1
1
2
2
2
2
1
1
2
1
4
1
2
2
2
1
1
1
1
4
9
1
1
2
1
2
1
1
3
2
1
1
1
1
1
1
7
1
2
1
5
1
1
1
5
1
1
2 2 2 2
2 3 3 1
1 1 2 1
1 4 1 1
2 2 1 3 3
1 3 1 1 1 1
1 1 4 5
3 3 2 2
1 4 3 3
1 2
1 2 1 1 3 1
1 1 1 1 1
1 1 1 2 4
3 1 1 2
1 1 1 1

Puzzle 3

1
2
2
1
2
1
1
2
1
2
3
1
1
11
2
3
1
4
1
1
2
1
1
1
1
1
1
2
1
3
1
3
4
1
6
1
3
2
2
2
1
1
1
1
2
3
1
5
1
2
2
1
4
1
2
6
1
3 1 2 1
1 3 2 1 1
4 2 1
2 4 1
1 3 2 1
4 1 4 1
3 1 1 1 1
3 1 1 1 2
2 2 2 3
5 2 4
1 1 1 2 1 2
2 1 1 2 2
1 1 1 1 2 2
2 1 1 4
1 1 2

Puzzle 4

1
4
3
1
1
2
1
2
4
2
5
1
5
1
1
1
1
5
2
2
3
1
2
1
1
4
3
1
3
1
1
1
1
2
1
1
7
2
2
2
3
1
2
2
2
6
1
2
2
1
1
4
1
1
5
2
1 4 2 3
3 3 3 1
2 5 1
4 1 4
1 5 4
1 2 1 2
1 1 3 2 1 1
2 1 2 2 1
5 1 1 2
1 1 1 2 2
1 1 3
2 2 1 1
1 1 2 3
2 1 1 1 1 1
5 1 2 1 1

Puzzle 5

1
3
3
1
1
1
4
1
2
1
2
1
1
2
1
5
1
5
1
1
1
1
4
1
4
1
1
1
2
1
1
1
1
2
1
1
1
1
3
1
1
1
2
2
5
3
1
1
1
4
1
10
2
1
5
3
3
3
1
1
2 1 1 3 3
2 1 2
1 1 2 2 1
1 3 1 1
3 1 1 2 1
5 2 1
1 1 1 2 1 1
1 1 1 2 2 1
2 1 1 1
3 1 1 1 1 1
2 1 1 1 1 4
2 1 2 1 3
1 3 1 5
1 1 4 3
1 1 3 1 3

Puzzle 6

4
2
1
4
2
1
1
1
2
1
3
1
1
1
1
2
1
2
1
1
1
1
1
1
1
1
1
1
1
1
6
2
2
2
3
1
2
2
4
1
4
2
1
1
3
3
3
1
2
1
4
1
1
1
2
2
6
1
1
1
2
1
3
4 1 1 1
1 2 1 1 1
2 1 1
2 2 2 6
1 5 2
1 2 2 2
3 1 2 1
2 2 4
1 1 1 1 1 1
1 1 2 1 1 1
1 1 3 1 1
2 3 1 2
1 1 2 1 3 1
1 2 1 5 1
2 1 3 2 1

Solutions

Solution 1

2
5
2
1
1
2
1
1
7
3
2
5
1
2
1
1
1
2
6
1
1
4
4
3
3
2
2
3
2
1
4
2
3
1
1
3
3
2
6
1
2
1
1
5
2
3
1
2
2
3
2
1
3
1 4 1 2 1
1 1 1 2 4
2 1 2 1
3 1 1 1 1
1 1 4 1
2 2 1 1 2
1 4 1 1
2 7 4
3 7 1
1 1 1 3
1 2 4 1 1
2 4 2
3 1 2 1 1
3 2 5
3 1 1 1 2

Solution 2

2
2
2
2
2
1
2
1
3
1
2
2
1
2
3
1
1
2
2
2
2
1
1
2
1
4
1
2
2
2
1
1
1
1
4
9
1
1
2
1
2
1
1
3
2
1
1
1
1
1
1
7
1
2
1
5
1
1
1
5
1
1
2 2 2 2
2 3 3 1
1 1 2 1
1 4 1 1
2 2 1 3 3
1 3 1 1 1 1
1 1 4 5
3 3 2 2
1 4 3 3
1 2
1 2 1 1 3 1
1 1 1 1 1
1 1 1 2 4
3 1 1 2
1 1 1 1

Solution 3

1
2
2
1
2
1
1
2
1
2
3
1
1
11
2
3
1
4
1
1
2
1
1
1
1
1
1
2
1
3
1
3
4
1
6
1
3
2
2
2
1
1
1
1
2
3
1
5
1
2
2
1
4
1
2
6
1
3 1 2 1
1 3 2 1 1
4 2 1
2 4 1
1 3 2 1
4 1 4 1
3 1 1 1 1
3 1 1 1 2
2 2 2 3
5 2 4
1 1 1 2 1 2
2 1 1 2 2
1 1 1 1 2 2
2 1 1 4
1 1 2

Solution 4

1
4
3
1
1
2
1
2
4
2
5
1
5
1
1
1
1
5
2
2
3
1
2
1
1
4
3
1
3
1
1
1
1
2
1
1
7
2
2
2
3
1
2
2
2
6
1
2
2
1
1
4
1
1
5
2
1 4 2 3
3 3 3 1
2 5 1
4 1 4
1 5 4
1 2 1 2
1 1 3 2 1 1
2 1 2 2 1
5 1 1 2
1 1 1 2 2
1 1 3
2 2 1 1
1 1 2 3
2 1 1 1 1 1
5 1 2 1 1

Solution 5

1
3
3
1
1
1
4
1
2
1
2
1
1
2
1
5
1
5
1
1
1
1
4
1
4
1
1
1
2
1
1
1
1
2
1
1
1
1
3
1
1
1
2
2
5
3
1
1
1
4
1
10
2
1
5
3
3
3
1
1
2 1 1 3 3
2 1 2
1 1 2 2 1
1 3 1 1
3 1 1 2 1
5 2 1
1 1 1 2 1 1
1 1 1 2 2 1
2 1 1 1
3 1 1 1 1 1
2 1 1 1 1 4
2 1 2 1 3
1 3 1 5
1 1 4 3
1 1 3 1 3

Solution 6

4
2
1
4
2
1
1
1
2
1
3
1
1
1
1
2
1
2
1
1
1
1
1
1
1
1
1
1
1
1
6
2
2
2
3
1
2
2
4
1
4
2
1
1
3
3
3
1
2
1
4
1
1
1
2
2
6
1
1
1
2
1
3
4 1 1 1
1 2 1 1 1
2 1 1
2 2 2 6
1 5 2
1 2 2 2
3 1 2 1
2 2 4
1 1 1 1 1 1
1 1 2 1 1 1
1 1 3 1 1
2 3 1 2
1 1 2 1 3 1
1 2 1 5 1
2 1 3 2 1

At 225 cells, the 15×15 demands method: mark the forbidden cells, revisit every line after each find, let the columns confirm the rows. Plan for 20 to 40 minutes depending on density. On hard, the grid is sparse: every cell is earned, the back-and-forth multiplies, and the advanced techniques — overlap, edge logic — earn their keep on every line.

Printing tip: letter or A4, portrait, default margins. Tick “Include solutions” to get the answers on a second page — handy to fold away for later. Prefer a screen to a pencil? The same format is playable online here, and the basics live in the beginner guide.