Odpowiedź:
Szczegółowe wyjaśnienie:
+-------+-------+-------+
| 1 4 2 | 5 3 7 | 8 6 9 |
| 5 7 9 | 6 8 2 | 3 1 4 |
| 6 8 3 | 9 1 4 | 7 2 5 |
|-------+-------+-------+
| 3 5 1 | 8 7 9 | 2 4 6 |
| 7 6 8 | 4 2 1 | 9 5 3 |
| 9 2 4 | 3 5 6 | 1 8 7 |
+-------+-------+-------+
| 8 1 6 | 7 9 5 | 4 3 2 |
| 4 3 7 | 2 6 8 | 5 9 1 |
| 2 9 5 | 1 4 3 | 6 7 8 |
+-------+-------+-------+
