Section A1 – Win
1.b7 !
{Desperado sacrifice that pulls the bishop over the intersection
square d5 and puts it into a passive position.}
( 1.d5 ? Kxb6 = )
( 1.h5 ? Kxb6 = )
1…Bxb7
( 1…Bc6+ 2.Kf8 ! Bxb7 3.h5 Ne3 4.d5 ! +- {The win is easier for
White than after immediate 1…Bxb7.} )
2.h5
( 2.d5 ? Bxd5
( 2…Ng3 = )
3.Bxd5 Ng3 = )
2…Ne3 !
( 2…Ng3 3.h6 +- )
( 2…Be4 3.d5 Ng3
( 3…Ne3 4.d6 Nf5 5.d7 +- )
4.h6 Nf5 5.Bh7 ! Nd6+ 6.Kd7 Bxh7 7.Kxd6 +- )
3.d5 !
{A sacrifice on the intersection square.}
( 3.h6 ? Be4 = )
3…Kb6 !
{It‘s relatively best for Black to decline the offer.}
( 3…Nxd5 4.h6 ! Nf6+
( 4…Nf4 5.Bh7 ! +- {The passed pawn is only blocked shortly
and can‘t be stopped anymore.} )
5.Kf7 Nxg8 6.h7 ! +- )
( 3…Bxd5 4.Bxd5 Nxd5 5.Kf7 ! +- )
4.d6 !
( 4.h6 ? Ng4 5.h7 Nf6+ 6.Ke7 Nxh7 = )
4…Bc6+
( 4…Nf5 5.d7 +- )
5.Kd8 !
( 5.Kf8 ? Nf5 6.Bh7 Nh6 =
( 6…Nxd6 ? 7.h6 +- )
7.Kg7
( 7.Ke7 Kc5 8.d7 Bxd7 = )
7…Bf3 ! 8.d7 Kc7 = )
( 5.d7 ? Ng4 6.Be6 Bxd7+ ! 7.Bxd7
( 7.Kxd7 Nf6+ 8.Ke7 Nxh5 = )
7…Nf6+ 8.Kf7 Nxh5 = )
5…Nf5
( 5…Kc5 6.h6 Kxd6 7.h7 +- )
6.d7 Kc5
( 6…Nh6 7.Be6 +- )
7.Be6 !
( 7.Kc7 ? Bxd7 ! 8.Kxd7 Kd4 9.Ke6 Ng7+ 10.Kf7 Nxh5 = )
7…Ng7 8.h6 !
( 8.Ke7 ? Bxd7 9.h6
( 9.Bxd7 Nxh5 = )
9…Nf5+ 10.Bxf5 Bxf5 = )
8…Nxe6+ 9.Ke7 Bxd7 10.h7 ! +- 1-0