🧩 Level 4 - Puzzle #140

📊 Professional ⭐ Hard 📝 78 Steps 🔧 6 Techniques

🎯 Current State

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🔧 Techniques Used

Hidden Single 52×
Pointing/Claiming 12×
Naked Triple 9×
Naked Single 2×
Naked Pair 2×
Naked Quad 1×

📋 Solution Steps

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