- Code: Select all
+----------------------+----------------------+-------------------+
| 6 5 3 | 789 1 789 | 4 79 2 |
| 47* 1 a478* | 5 2 479 | 6 3 89 |
| 9 yb478 2 | 6 3 y47 | x17 5 18 |
+----------------------+----------------------+-------------------+
| 3 9 5 | 1478 78 178 | 2 148 6 |
| 8 6 14 | 3 9 2 | 5 14 7 |
| 2 47 147 | 148 6 5 | 9 148 3 |
+----------------------+----------------------+-------------------+
| C157 2 C79 | B179 B57 3 | 8 6 4 |
| 1457* 3 4789* | A1789 A578 6 | w17 2 159 |
| 157 zc8-7 6 | 2 4 1789 | 3 79 159 |
+----------------------+----------------------+-------------------+
UR(47)r28c13 using mixed internal-externals
(8)r2c3 - r3c2 = (8)r9c2
(7)r8c45 - r7c45 = (7)r7c13
(7)r8c7 - r3c7 - (7=48)r3c26 = (8)r9c2
=> -7 r9c2; ste