This one is not as difficult as the the last bishop trap. See if you can find how black can trap white's bishop in the following position. The trap is also known as the Noah's Ark trap. I suppose this is because the bishop gets stranded on a pawn mountain of sorts (your clue). Black to move and trap the b3 bishop in two moves. Good luck!

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?

Can you find White's best move after black attacks the bishop with 9...e5?