🧩 Level 4 - Puzzle #210
📊 Professional
⭐ Hard
📝 72 Steps
🔧 4 Techniques
🎯 Current State
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🔧 Techniques Used
Hidden Single
51×
Pointing/Claiming
16×
Naked Single
3×
Naked Pair
2×
📋 Solution Steps
All
Singles
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Subsets
Fish
Wings
Chains
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