數獨實戰 EP6 - 不需用Chain的高階題目

Hodoku Rating: 2066 (Extreme)
Source:
• You’ll Never Believe W...
Techniques used :
Row 58 2 x wing
Row 369 1 swordfish
Row 258 1 swordfish
Col 28 9 finned x wing
Block 7 48 matching pair
Row 7 123 xy wing
Col 4 159 xy wing
Block 8 lock 5
Col 7 19 matching pair
Row 4 127 xy wing
Row 78 67 unique rectangle type 7
Block 8 lock 7
Col 4 139 triplet