🧩 Level 4 - Puzzle #091

📊 Professional ⭐ Hard 📝 91 Steps 🔧 6 Techniques

🎯 Current State

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🔧 Techniques Used

Hidden Single 55×
Pointing/Claiming 21×
ALS-XZ
XYZ-Wing
Naked Triple
Naked Quad

📋 Solution Steps

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