3 steps for me:
- Code: Select all
+-----------------------+---------------------------+-------------------------+
| 356789 356789 15689 | 4 679 567 | 2 139 13569 |
| 5679 5679 4 | 1579 3 2 | 569 8 1569 |
| 3569 2 1569 | 159 69 8 | 4569 1349 7 |
+-----------------------+---------------------------+-------------------------+
| 2 34689 7 | ca38 1 a34 | 689 5 689 |
| 4589 4589 589 | 6 2478 457 | 3 1279 189 |
| 3568 1 568 | 57-38 278 9 | 678 27 4 |
+-----------------------+---------------------------+-------------------------+
| 1 4789 3 | c789 5 b47 | 4789 6 2 |
| 456789 456789 5689 | 2 46789 3467 | 1 3479 3589 |
| 456789 456789 2 | c3789 46789 1 | 45789 3479 3589 |
+-----------------------+---------------------------+-------------------------+
(38=4)r4c46 - (4=7)r7c6 - (7=938)r479c4 => -38r6c4
4 singles
- Code: Select all
+------------------------+--------------------------+--------------------------+
| 56789 3 15689 | 4 679 567 | 2 19 1569 |
| 5679 5679 4 | 1579 3 2 | 569 8 1569 |
| 569 2 1569 | 159 69 8 | 4 3 7 |
+------------------------+--------------------------+--------------------------+
| 2 4689 7 | b38 1 c34 | 689 5 689 |
| 4589 4589 589 | 6 2478 c457 | 3 1279 189 |
| 3 1 568 |da57 a278 9 | 68-7 a27 4 |
+------------------------+--------------------------+--------------------------+
| 1 4789 3 | 789 5 c47 | 789 6 2 |
| 456789 456789 5689 | 2 46789 3467 | 1 479 3589 |
| 456789 456789 2 | 3789 46789 1 | 5789 479 3589 |
+------------------------+--------------------------+--------------------------+
(7=258)r6c458 - (8=3)r4c4 - (3=475)475c6 - (5=7)r6c4 => -7r6c7
pairs,singles, locked candidates
- Code: Select all
+------------------------+--------------------------+--------------------------+
| 5689 3 5689 | 4 679 567 | 2 1 569 |
| 5679 5679 4 | 1 3 2 | 569 8 569 |
| 569 2 1 | 59 69 8 | 4 3 7 |
+------------------------+--------------------------+--------------------------+
| 2 468 7 | c38 1 b34 | d689 5 d689 |
| 4589 4589 589 | 6 2478 457 | 3 27 1 |
| 3 1 568 | 57 278 9 | d68 27 4 |
+------------------------+--------------------------+--------------------------+
| 1 a48-79 3 | f789 5 b47 | f78 6 2 |
| 456789 456789 5689 | 2 46789 3467 | 1 49 358 |
| 456789 456789 2 | 3789 46789 1 | 578 49 358 |
+------------------------+--------------------------+--------------------------+
4r7c2 = 43r74c6 - (3=*8)r4c4 - r4c79 = 8r6c7 - (*8=79)r7c47 => -79r7c2, ste