15x15 Nonogram

Difficulty: Advanced

Fill in the cells based on the numbers

   12
   22
1111
   11
1113
1122
  141
  112
  112
1111
   21
  131
  122
  111
  121
   111
   121
    12
    11
11212
    11
    21
   131
   312
   111
   111
    14
  1211
  1212
  1122
Tip: Right-click to mark cells with X

15x15 - Advanced Techniques

15x15 puzzles demand advanced solving strategies and careful attention to detail. These grids often reveal intricate pictures and patterns.

Key Features

  • Complex pattern interactions
  • Multiple solving paths
  • Requires strategic planning
  • Tests advanced technique application

Solving Tips

  • Start with the most constrained areas
  • Use cross-referencing between rows and columns
  • Keep track of your progress systematically
  • Double-check your work regularly