🧩 Level 4 - Puzzle #347
📊 Professional
⭐ Hard
📝 81 Steps
🔧 6 Techniques
🎯 Current State
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🔧 Techniques Used
Hidden Single
51×
Pointing/Claiming
15×
Naked Pair
6×
Naked Triple
4×
Naked Quad
3×
Naked Single
2×
📋 Solution Steps
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Singles
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