Let's play a classic game, your location can tell you a lot.
| 8 | 2 | 5 | 4 | |||||
| 9 | 3 | 8 | 7 | |||||
| 1 | 3 | 4 | 9 | |||||
| 3 | 4 | 1 | 2 | |||||
| 1 | 7 | 2 | 6 | |||||
| 2 | 7 | 6 | 8 | |||||
| 8 | 5 | 1 | 3 | |||||
| 1 | 3 | 6 | ||||||
| 6 | 4 | 8 | 9 | 1 | 5 |
Best to play by the normal rules, I always say. Unless you already know the answer; in which case, what do you have to say for yourself?