1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 Bg4 6.h3 Bh5 7.g4 Bg6 8.Ne5 c6?! 9.Bg2 Nbd7 10.f4 e6 11.Nc4 (Even better is 11.h4) 11...Qc7 12.Qe2 In this position should black play 12...0-0-0 or 12...Nb6? How can you avoid the bishop trap?
Hansen, Carsten. Catastrophes & Tactics in the Chess Opening - Volume 7: Minor Semi-Open Games: Winning in 15 Moves or Less: Chess Tactics, Brilliancies & Blunders in the ... Opening (Winning Quickly at Chess Series) (pp. 5-6). CarstenChess. Kindle Edition.
Black must play 12...0-0-0. If 12...Nb6 then white plays 13.f5! and the g6 bishop is trapped.