Section B1 – Min Win
1.b7!
( 1.Nb4? Kd7! 2.Ncd5 Bc5! 3.b7 Bxb4! 4.Nxb4 Kc7 =, quiet )
1…Kc6! 2.b8=N+!
( 2.b8=Q? Bd6+ =, quiet )
2…Kb7 3.Ne4! Bf8 4.Ke5!
( 4.Kf5!? Ka7! 5.Ke6 Bh6! 6.Nec5 Be3! 7.Nd3 Kb7! 8.Kd5! Ba7 =, quiet )
4…Ka7
( 4…Ba3 5.Kd4 Be7 6.Kd5 Ba3 7.Ng5 Bc1 8.Ne6 Be3 9.Nd8+ Kb6 10.Nb4 Bc5 11.Nb8c6 )
5.Kd5 Bh6 6.Nec5! Be3 7.Nd3! Kb7 8.Ndb4 Bd2 9.N4c6 Bf4! 10.Nc5+ Ka8 11.Nbd7 +-
White avoids an unexpected stalemate and wins
*