🧩 Level 4 - Puzzle #181
📊 Professional
⭐ Hard
📝 71 Steps
🔧 6 Techniques
🎯 Current State
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🔧 Techniques Used
Hidden Single
52×
Pointing/Claiming
10×
Naked Quad
3×
Naked Single
3×
Naked Triple
2×
ALS-XZ
1×
📋 Solution Steps
All
Singles
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Subsets
Fish
Wings
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