Section B1 – Min Win
1.Kf4 Na6
( 1…Ke7 2.Ke5 Na6 3.Kd5 +- and the main solution like in main line after 5. Rd5 )
2.Bf1!
( 2.Ke5? Nc5! 3.Be6 Ke7! 4.Bc4 Nb7 (Rd7) 5.Kd5 Kd7 (Cb7)= )
2…Nc7!
Back on c7
3.Ke5 Ke7 4.Bh3!
Back on h3. Not 4. b4? Rd7 5. b5 Ca8! drawing.
4…Na6!
Back on a6. 4… Rd8 5. Rd6 Cb5+ 6. Rc5+-. Now begins a curious journey by white king.
5.Kd5 Nb4+ 6.Kc4 Nc2!
( 6…Nc6 7.Kc5 +- )
7.Kc5!
( 7.Kd5? Kd8! 8.Kd6
( 8.Bf5 Ne3+! 9.Ke4 Nc2 10.Kd5
( 10.Kd3 Nb4+ 11.Kc4 Nc6 =, quiet )
10…Ne3+ Positional draw )
8…Ne3! 9.Be6
( 9.Kc6 Nd1 10.b4 Nxb2 11.b5 Ke7! 12.b6 Nc4 =, quiet )
9…Nc2!
( 9…Nd1? 10.b4 +- )
10.Kc6
( 10.Bh3 Ne3! 11.Be6
( 11.Kc6 Nd1! 12.b4 Nxb2 13.b5 Ke7! 14.b6 Nc4 =, quiet )
11…Nc2 Positional draw )
10…Nd4+ 11.Kd6 Nc2! 12.Kc6 Nd4+ Positional draw )
( 7.Kc3? Ne1! 8.Kd2 Nf3+ =, quiet )
7…Kd8 8.Kb6! Ne3! 9.Kb7! Ke7 10.Kc6! Nc2 11.Bg2! Nd4+ 12.Kc5
(d5)
12…Nxb3+ 13.Kc4 Nc1 14.Bf1!
(back on f1) and White wins. 14. b4? Ce2=
*