by pjb » Sun Apr 01, 2018 10:08 pm
- Code: Select all
8 5 3 | 2 6 1 | 4 9 7
6 1 2 | 9 47 47 | 3 8 5
9 4 7 | 35 358 358 | 2 1 6
------------------------+----------------------+---------------------
7 6 19 |d15 2 b589 |e58 4 3
5 2 49 | 36 348 34689 | 68 7 1
3 8 14 | 7 c145 45-6 |f56 2 9
------------------------+----------------------+---------------------
4 7 8 | 156 b15 a56 | 9 3 2
1 3 6 | 4 9 2 | 7 5 8
2 9 5 | 8 37 37 | 1 6 4
(6=5)r7c6 - (5=1)r7c5(r4c6) - r6c5 = (1-5)r4c4 = r4c7 - (5=6)r6c7 => -6 r6c6; stte
Phil