My solution was:
Naked Pairs and Naked Quad until
- Code: Select all
+---------+------------+-----------+
| 3 57 89|569 1 25| 27 678 4 |
| 1 2 6| 4 78 78| 3 9 5 |
| 4 57 89|569 26 3 |127 678 126|
+---------+------------+-----------+
| 5 8 2| 7 4 6 | 9 1 3 |
| 7 3 1| 2 5 9 | 6 4 8 |
| 6 9 4| 38 38 1 | 5 2 7 |
+---------+------------+-----------+
| 9 46 3| 1 2678 278| 48 5 26|
| 2 146 7|568 9 58| 48 3 16|
| 8 16 5| 36 236 4 |127 67 9 |
+----------------------------------+
Then
NTriple (257)r1c267 => (-5)r1c4 (-7)r1c8
VWXYZ-Wing Type B on {23568} in b8e467,b8e8,c5e3 (-6)b8c5 => (-6)r7c5
Skyscraper (2)r1c6=r1c7-r9c7=r9c5 => (-2)r7c6 (-2)r3c5
Singles to:
- Code: Select all
+---------+---------+---------+
| 3 5 8| 9 1 2| 7 6 4|
| 1 2 6| 4 78 78| 3 9 5|
| 4 7 9| 5 6 3| 12 8 12|
+---------+---------+---------+
| 5 8 2| 7 4 6| 9 1 3|
| 7 3 1| 2 5 9| 6 4 8|
| 6 9 4|38 38 1| 5 2 7|
+---------+---------+---------+
| 9 46 3| 1 278 78|248 5 26|
| 2 146 7|68 9 5|148 3 16|
| 8 16 5|36 23 4| 12 7 9|
+-----------------------------+
NPair (12)c7r39 => (-2)r7c7 (-1)r8c7
XY-wing [3] (6)(6=2)r7c9-(2=1)r9c7-(1=6)r9c2 => (-6)r7c2
stte