Section B1 Min Win
1.a7 Nxe6 2.Kd7
( 2.a8=Q {?} 2…Nc7+ {! Draw} )
2…Nxc5+ 3.Kd6 Ne4+ 4.Ke6 Na6 5.Kd7
( 5.a8=Q {?} 5…Nc7+ {! Draw} )
5…Nf6+ 6.Kc6 Nb4+ 7.Kc5 Nd3+ 8.Kd4 Nf2 9.Ke5
{!!}
( 9.a8=Q {?} 9…N2g4 {!} 10.Qa5+ Kg6 {! Draw} )
9…Nd7+
( 9…N2g4+ 10.Kf5 {! +-} )
10.Kd6 Nb6 11.Kc6 Na8 12.Kb7 Ne4 13.Kxa8 Nd6 14.Kb8 Nb5 15.a8=Q
{+-}
*