Free printable · Answer key included
Printable 15x15 Nonograms (Hard), Pack 3
Fifteen-by-fifteen nonograms are long, absorbing solves with clue lists up to the edge of the grid. Print one per sitting, keep a sharp pencil, and mark empty squares as you go.
Pack 3 of 5 has four nonograms with an answer key on the second page. Between 56 and 61 percent of the squares end up shaded, so no two grids look alike.
15x15 Nonograms (Hard) · Pack 3
logicpuzzles.ca/printable/nonograms/hard-15x15/pack-3
Puzzle 1 · #185
1211211
42211
5111
622
3211
1233
72
21311
131
2172
114
211121
211121
112112
123111
21112
1314
22111
42112
231
4122
354
11421
1431
31211
1114
1324
11212
1212
523
Puzzle 2 · #199
12211
94
111213
41121
11411
11123
1124
6111
243
51111
11142
12122
5111
181
2116
1261
1332
4112
21341
2111
21213
4223
21112
1243
1322
632
211112
2323
4122
224
Puzzle 3 · #186
3611
433
11313
83
11132
11311
1111
22121
3412
1162
173
318
21223
3312
4211
11134
21124
2242
321
1114
1111
121411
137
4141
2215
39
2112
413
416
328
Puzzle 4 · #179
4141
131
172
1131
2411
12212
4122
211
1112
4411
364
164
5211
14211
1612
12131
11242
121
12313
335
2126
2432
1461
326
121221
11211
2161
1123
1321
1332
Answers: 15x15 Nonograms (Hard) · Pack 3
logicpuzzles.ca/printable/nonograms/hard-15x15/pack-3
Puzzle 1
1211211
42211
5111
622
3211
1233
72
21311
131
2172
114
211121
211121
112112
123111
21112
1314
22111
42112
231
4122
354
11421
1431
31211
1114
1324
11212
1212
523
Puzzle 2
12211
94
111213
41121
11411
11123
1124
6111
243
51111
11142
12122
5111
181
2116
1261
1332
4112
21341
2111
21213
4223
21112
1243
1322
632
211112
2323
4122
224
Puzzle 3
3611
433
11313
83
11132
11311
1111
22121
3412
1162
173
318
21223
3312
4211
11134
21124
2242
321
1114
1111
121411
137
4141
2215
39
2112
413
416
328
Puzzle 4
4141
131
172
1131
2411
12212
4122
211
1112
4411
364
164
5211
14211
1612
12131
11242
121
12313
335
2126
2432
1461
326
121221
11211
2161
1123
1321
1332
How to solve
- Read the clues: The numbers beside a row (or above a column) are the lengths of its shaded blocks, in order, with at least one empty square between blocks.
- Start with big blocks: A block longer than half the line always covers its middle squares, wherever it slides.
- Mark the empties: Put a dot or an X in squares that must stay empty. They cut lines into smaller pieces.
- Cross over: Every square you settle in a row is new information for its column, and the other way round.
Free to print and copy for home, classroom and library use. Every puzzle has one answer you can reach by logic alone.