🧩 Level 4 - Puzzle #189

📊 Professional ⭐ Hard 📝 78 Steps 🔧 5 Techniques

🎯 Current State

Loading grid...

🔧 Techniques Used

Hidden Single 51×
Pointing/Claiming 14×
Naked Triple 5×
XY-Wing 4×
Naked Pair 4×

📋 Solution Steps

Loading steps...