- Code: Select all
+-----------------+-----------------------+------------------+
| 5 23 Ed89 | 69-8 1 679 | 39 4 278 |
| 4 1 Dc89 | 2 zCa789 3 | 5 6 b78 |
| 7 23 6 | 4 zB89 5 | 39 1 28 |
+-----------------+-----------------------+------------------+
| 8 4 3 | 159 a259 129 | 6 7 59 |
| 6 7 2 | 359 3459 49 | 1 8 59 |
| 9 5 1 | 7 6 8 | 4 2 3 |
+-----------------+-----------------------+------------------+
| 1 8 45 | 59 24579* 2479 | 27* 3 6 |
| 2 6 45 | 358 34578* 47 | 78* 9 1 |
| 3 9 7 | 16 B28* 16 | 28* 5 4 |
+-----------------+-----------------------+------------------+
DP(278)r789c57 using externals:
(7)r2c5 - (7=8)r2c9 - r2c3 = (8)r1c3
(2)r4c5 - (2=89)r39c5 - r2c5 = r2c3 - (9=8)r1c3
(8)r23c5
=> -8r1c4; ste
(not the reasonable way
)