1.Bb8? K*c6 2.Be5 b2 3.d5+! K*d5 4.B*b2 = =

But 2…. Kd5! – black wins

1.d5! b2 2.Bb8! Kb6 3.Ba7! Kc7 4.Bb8! Kc8 5.d6! b1Q 6.d7! Kd8 7.Ba7!!

7… Kc7 8.Bb6+!! Q*b6 9.d8Q+! K*d8

10.c7+ Q*c7/K*c7 – stalemates

10… Kd7 11.c8Q+! K*c8 – stalemate

7… Qb5 8.Bb6+!! Q*b6 9.c7+! Q*c7 – stalemate

9... K*c7 10.d8Q+! K*d8 - stalemate

6.Ba2? Qa1 7.d7+! Kc7 8.d8Q+! K*d8 9.c7+!! Kd7

10.c8Q+!! K*c8 – pin-stalemate

but:

6…. Qb5 7.d6+ Kc7! 8.Bb6+ K*c6! 9.d8Q Qa6+

10.Kb8/Ba7 Qb7#