The game looks like this:

```
a b
A [(-12, 1) (8, 8)]
B [(15, 1), (8,-1)]
```

(15, 1) and (8,8) are Nash Equlibria. However, could you still mix between (8,8) and (15,1)? For example, for P2 (column player) to make P1 indifferent he could play b with a probability of 1. And player 1 could make player 2 indifferent with another probability mix.

However, can mixed strategies include weakly dominated strategies?