Boggle initially released in 1972, then rereleased 1992. Looking strictly at the English editions, here's a breakdown of the two sets. Note that I alphabetized the characters on each die, then alphabetized each die for assignment. I'm not concerned about which letter is adjacent to another on a specific die.
| Die | Old Set | New Set |
|---|---|---|
| 1 | AACIOT | AAEEGN |
| 2 | ABILTY | ABBJOO |
| 3 | ABJMOQ | ACHOPS |
| 4 | ACDEMP | AFFKPS |
| 5 | ACELRS | AOOTTW |
| 6 | ADENVZ | CIMOTU |
| 7 | AHMORS | DEILRX |
| 8 | BFIORX | DELRVY |
| 9 | DENOSW | DISTTY |
| 10 | DKNOTU | EEGHNW |
| 11 | EEFHIY | EEINSU |
| 12 | EGINTV | EHRTVW |
| 13 | EGKLUY | EIOSST |
| 14 | EHINPS | ELRTTY |
| 15 | ELPSTU | HIMNQU |
| 16 | GILRUW | HLNNRZ |
Some dice have repeating characters. The breakdown of unique characters per die is:
| Die | Old | New |
|---|---|---|
| 1 | 5 | 4 |
| 2 | 6 | 4 |
| 3 | 6 | 6 |
| 4 | 6 | 5 |
| 5 | 6 | 4 |
| 6 | 6 | 6 |
| 7 | 6 | 6 |
| 8 | 6 | 6 |
| 9 | 6 | 5 |
| 10 | 6 | 5 |
| 11 | 5 | 5 |
| 12 | 6 | 6 |
| 13 | 6 | 5 |
| 14 | 6 | 6 |
| 15 | 6 | 6 |
| 16 | 6 | 5 |
Here's the characters frequency distribution and difference from the old to new sets:
| Char. | Old Set | New Set | Diff. |
|---|---|---|---|
| A | 8 | 6 | -2 |
| B | 3 | 2 | -1 |
| C | 3 | 2 | -1 |
| D | 4 | 3 | -1 |
| E | 10 | 11 | +1 |
| F | 2 | 2 | |
| G | 3 | 2 | -1 |
| H | 3 | 5 | +2 |
| I | 7 | 6 | -1 |
| J | 1 | 1 | |
| K | 2 | 1 | -1 |
| L | 5 | 4 | -1 |
| M | 3 | 2 | -1 |
| N | 5 | 6 | +1 |
| O | 6 | 7 | +1 |
| P | 3 | 2 | -1 |
| Q | 1 | 1 | |
| R | 4 | 5 | +1 |
| S | 5 | 6 | +1 |
| T | 5 | 9 | +4 |
| U | 4 | 3 | -1 |
| V | 2 | 2 | |
| W | 2 | 3 | +1 |
| X | 1 | 1 | |
| Y | 3 | 3 | |
| Z | 1 | 1 |