🧩 Level 4 - Puzzle #091
📊 Professional
⭐ Hard
📝 84 Steps
🔧 6 Techniques
🎯 Current State
Loading grid...
← Previous
Step 0 / 84
Next →
🔧 Techniques Used
Hidden Single
54×
Pointing/Claiming
16×
ALS-XZ
7×
XY-Wing
3×
Naked Quad
3×
2-String Kite
1×
📋 Solution Steps
All
Singles
Locked
Subsets
Fish
Wings
Chains
Expand All
Collapse All
Loading steps...
← Previous
Level 4 Index
Next →