🧩 Level 4 - Puzzle #016
📊 Professional
⭐ Hard
📝 75 Steps
🔧 6 Techniques
🎯 Current State
Loading grid...
← Previous
Step 0 / 75
Next →
🔧 Techniques Used
Hidden Single
55×
Pointing/Claiming
8×
ALS-XZ
5×
Naked Pair
4×
Naked Triple
2×
XYZ-Wing
1×
📋 Solution Steps
All
Singles
Locked
Subsets
Fish
Wings
Chains
Expand All
Collapse All
Loading steps...
← Previous
Level 4 Index
Next →