- Code: Select all
*--------------------------------------------------------------*
| 3 6 1 | 5 7 2 | 9 4 8 |
| 4 b9-7 59 | 8 6 1 | 235 235 ak237 |
| 578 2 58 | 9 4 3 |bj15 6 bk17 |
*---------------------+-------------------+--------------------|
| 159 f49 2 | 3 8 6 | 7 59 149 |
| 58 e348 d568 | 1 9 7 | 235 2358 e2346 |
| 1789 cgh3789 c689 | 2 5 4 |ci13 c389 1369 |
*---------------------+-------------------+--------------------|
| 289 f89 7 | 6 1 5 | 4 239 239 |
| 29 5 4 | 7 3 8 | 6 1 29 |
| 6 1 3 | 4 2 9 | 8 7 5 |
*--------------------------------------------------------------*
[7r2c9 = 7r2c1&(71)r3c79 - (1|7=3896)r6c2378 - 6r5c3 = (64)r5c29 - (4=89)r47c2 - (8|9=7)r6c2] = 3r6c2 - (3=1)r6c7 - 1r3c7 = (17)r23c9 => -7 r2c2 ; ste
Or, a bit shorter:
(5=17)r3c79 - (1|7)r3c1,r6c7 = (37)r2c2,r6c7 - (3|7=896)r6c238 - 6r5c3 = (46-3)r5c29 = (31)r6c27 => -1 r3c7 ; ste