🧩 Level 4 - Puzzle #153

📊 Professional ⭐ Hard 📝 67 Steps 🔧 5 Techniques

🎯 Current State

Loading grid...

🔧 Techniques Used

Hidden Single 52×
Pointing/Claiming 8×
Naked Quad 4×
Naked Triple 2×
Naked Pair 1×

📋 Solution Steps

Loading steps...