| A | B | C | D | E | F | G | H | I | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | (1, 1) | (2, 1) | (3, 1) | (4, 1) | (5, 1) | (6, 1) | (7, 1) | (8, 1) | (9, 1) |
| 2 | (1, 2) | (2, 2) | (3, 2) | (4, 2) | (5, 2) | (6, 2) | (7, 2) | (8, 2) | (9, 2) |
| 3 | (1, 3) | (2, 3) | (3, 3) | (4, 3) | (5, 3) | (6, 3) | (7, 3) | (8, 3) | (9, 3) |
| 4 | (1, 4) | (2, 4) | (3, 4) | (4, 4) | (5, 4) | (6, 4) | (7, 4) | (8, 4) | (9, 4) |
| 5 | (1, 5) | (2, 5) | (3, 5) | (4, 5) | (5, 5) | (6, 5) | (7, 5) | (8, 5) | (9, 5) |