🧩 Level 4 - Puzzle #066

📊 Professional ⭐ Hard 📝 76 Steps 🔧 5 Techniques

🎯 Current State

Loading grid...

🔧 Techniques Used

Hidden Single 51×
Pointing/Claiming 12×
Naked Pair
Naked Triple
XYZ-Wing

📋 Solution Steps

Loading steps...