Nine tiles or twelve?
Both boards use the same sum-and-close rule here. The twelve-tile board adds 10, 11 and 12, increasing the starting total and the decisions you can make.
| Feature | 9 tiles | 12 tiles |
|---|---|---|
| Open numbers | 1–9 | 1–12 |
| Starting total | 45 | 78 |
| Highest single tile | 9 | 12 |
| Initial dice | Two | Two |
| One-die switch | Every remaining tile is 6 or lower | |
| Daily challenge here | Available | Not available |
| Practice and friend rooms | Available | Available |
What changes with twelve tiles?
There are more tiles to clear and more combinations to consider. For example, a roll of 11 can close tile 11 directly, or close another open combination that adds up to 11. On a nine-tile board, 11 always needs at least two tiles.
Which should you start with?
Choose nine tiles to learn the controls and compare daily results. Choose twelve when you want a larger board. We do not provide a calculated win probability for either version, so a precise difficulty ratio would be misleading.
Compare scores within a board size
The starting sums differ: 1 through 9 total 45, while 1 through 12 total 78. Practice bests are therefore stored separately. Everyone in a friend room uses the board size chosen when the room was created.
Are the dice rules identical?
Yes on this website. Use two dice while any tile above 6 is open, and one die otherwise. Physical sets may use different house rules; check their instructions before comparing strategy or odds.