🧩 Level 4 - Puzzle #331
📊 Professional
⭐ Hard
📝 71 Steps
🔧 7 Techniques
🎯 Current State
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🔧 Techniques Used
Hidden Single
52×
Naked Triple
5×
Pointing/Claiming
4×
Naked Single
3×
ALS-XZ
3×
Naked Quad
2×
Naked Pair
2×
📋 Solution Steps
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Singles
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Fish
Wings
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