On the Subject of Letter Keys
| -0 | -1 | -2 | -3 | -4 | -5 | -6 | -7 | -8 | -9 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 0- | A | CE3=C D | CE3=C D | ≥2b=B CE3=C D | CE3=C D | CE3=C D | A | CE3=C D | CE3=C D | ≥2b=B CE3=C D |
| 1- | CE3=C D | CE3=C D | A | CE3=C D | CE3=C D | ≥2b=B CE3=C D | CE3=C D | CE3=C D | A | CE3=C D |
| 2- | CE3=C D | ≥2b=B CE3=C D | CE3=B D | CE3=B D | A | CE3=B D | CE3=B D | ≥2b=B CE3=B D | CE3=B D | CE3=B D |
| 3- | A | CE3=B D | CE3=B D | ≥2b=B CE3=B D | CE3=B D | CE3=B D | A | CE3=B D | CE3=B D | ≥2b=B CE3=B D |
| 4- | CE3=B D | CE3=B D | A | CE3=B D | CE3=B D | ≥2b=B CE3=B D | CE3=B A | CE3=B A | A | CE3=B A |
| 5- | CE3=B A | ≥2b=B CE3=B A | CE3=B A | CE3=B A | A | CE3=B A | CE3=B A | ≥2b=B CE3=B A | CE3=B A | CE3=B A |
| 6- | A | CE3=B A | CE3=B A | ≥2b=B CE3=B A | CE3=B A | CE3=B A | A | CE3=B A | CE3=B A | D |
| 7- | CE3=B A | CE3=B A | A | CE3=B A | CE3=B A | ≥2b=B CE3=B A | CE3=B A | CE3=B A | A | CE3=B A |
| 8- | CE3=C A | ≥2b=B CE3=C A | CE3=C A | CE3=C A | A | CE3=C A | CE3=C A | ≥2b=B CE3=C A | CE3=C A | CE3=C A |
| 9- | A | CE3=C A | CE3=C A | ≥2b=B CE3=C A | CE3=C A | CE3=C A | A | CE3=C A | CE3=C A | ≥2b=B CE3=C A |