A quick analysis of tile placement popularity, from a collection of around 7k computer v computer Quackle games.
For some reason, either as a consequence inherent to the game or the algorithm's training the top right corner of the board is less popular.
| Quadrant | Percent of tiles |
|---|---|
| NW | 17.69 |
| NE | 21.86 |
| SW | 21.4 |
| SE | 21.89 |
(The remaining ~20 percent comes from the central cross, which was not included in the quadrants.)