🧩 Level 7 - Puzzle #021
📊 Legend
⭐ Master
📝 191 Steps
🔧 11 Techniques
🎯 Current State
Loading grid...
← Previous
Step 0 / 191
Next →
🔧 Techniques Used
Hidden Single
100×
Pointing/Claiming
26×
Subset Technique
25×
Naked Pair
14×
Forcing Chain
10×
Swordfish
6×
Trial & Error
4×
Locked Candidates
2×
Naked Single
2×
Naked Triple
1×
ALS-XZ
1×
📋 Solution Steps
All
Singles
Locked
Subsets
Fish
Wings
Chains
Expand All
Collapse All
Loading steps...
← Previous
Level 7 Index
Next →