Section B1 – Min Win
1.Bd1+! Kb4 2.Kf2!
Main A
2…Ne4+
( Main B 2…Nf5 3.Be2 Bxc4
( 3…Kc5 4.Rf8! +- )
4.Rb8+ Kc3 5.Rc8 Nd6 6.Rc6 +- )
3.Ke3 Nc5!
( 3…Nc3 4.Rb8+! Kc5
( 4…Kxc4 5.Bb3+ +- )
5.Bb3 Bxc4 6.Rc8+ Kb4 7.Bxc4 +- )
4.Kd4!
( 4.Be2? Kc3! 5.Rd4 Bf7 6.Rh4 Nb3! 7.Rf4 Be6 =, quiet Positional Draw. )
4…Bxc4 5.Rb8+ Bb5 6.Be2 Ne6+! 7.Ke3!
( 7.Ke5? Nc7 8.Rb7 Ka5! =, quiet )
7…Nc7 8.Rb7
Diagonal echo-variant compared to B.
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