OK: 1... c4 2. Bf3 Ke7 3. Bd5 Kd7 4. Bg8 Ke7 5.Bh7(!!) seems to win.

5... Kf7 6.d5 N somewhere and the King penetrates.

OK: 1... c4 2. Bf3 Ke7 3. Bd5 Kd7 4. Bg8 Ke7 5.Bh7(!!) seems to win.

5... Kf7 6.d5 N somewhere and the King penetrates.

[Title "Black to move"]
[StartFlipped "0"]
[fen "8/6p1/1pBnk1p1/pPp2pP1/P2P1P1P/2K5/8/8 b - - 0 1"]

1... c4 2. Bg2! (2.Bf3 Ne4+! 3.Kxc4 (3.Kc2 Kd5-+) 3...Nd2+ 4.Kd3 Nxf3-+) 2... Ke7 3. Bd5 Kd7 4. Bg8 Ke7 5.Bh7! Kf7 6.d5+-