🧩 Level 4 - Puzzle #020

📊 Professional ⭐ Hard 📝 77 Steps 🔧 7 Techniques

🎯 Current State

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🔧 Techniques Used

Hidden Single 52×
Pointing/Claiming 14×
Naked Triple 5×
XY-Wing 2×
ALS-XZ 2×
X-Wing 1×
Naked Quad 1×

📋 Solution Steps

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