Bb5+
Extinction Chess

11. ... 0-0
You might need to make these next couple of moves out of order in your diagram:
for example
11. Bb5+ 0-0 12.c3 Ba5 might become 11. c3 0-0 12 Bb5+ Ba5 in your diagram.
or you might make some other rearangement of moves to accomadate castleing out of check.
btw: you canconsider "11. Bb5+ 0-0 12.c3 Ba5 " to be a conditional move.
10. ... cxd5