Opponent’s options: VOE(S) 11c, VANS 2l (out), VIS 11m
Scoring options: QIS o4/4g, NAOI 14a, QI 15i

In Puzzle 12, you need to block VANS, but none of the options that do so score very well. However, you can block VANS and set up your Q for your next turn, making a play such as AnI 3l (2). If your opponent blocks, you will be able to trap them with the V and win handily.