Problem position for engines!

[beachknight]

16:
8/8/1B3pk1/3P2p1/4P2p/3r3P/5PK1/8 b - - 0 1

Analysis by Stockfish 180114IP 64:

73...f5 74.f3 fxe4 75.fxe4 Kf6 76.Bd8+ Ke5 77.Kf2 Kf4 78.d6 g4 79.hxg4 h3 80.Bc7 Rd2+ 81.Ke1 Rd4 82.Kf2 Kxg4 83.Kg1 Rd1+ 84.Kh2 Rd2+ 85.Kh1 Kf3 86.Kg1 Rd1+ 87.Kh2 Kg4 88.d7 Rxd7 89.Bb8 Rd2+ 90.Kh1 Re2 91.Bc7 Rg2 92.Bb8 Kf3 93.Bc7 Kg4
-/+ (-1.51) Depth: 49/61 00:04:56 1063MN
(Chess Engines Testing, 23.01.2014)