1.g7! [1.Rg2!? Bf6+ 2.Kxe4 Bg7 3.Kd5 Nf8 4.Rc2 Bxg6 5.Rc7 Bh6! 6.a6 Bf5-+ ] 1...Bf6+ [1...Bf7 2.Kxe4 Nf6+ 3.Kf5 Ng8 4.Re1= ] 2.Kxe4 Bxg7 main B [2...Bg6+ main A 3.Kf3! (3.Kd5!? Bxg7 4.Re7 Nf6+ 5.Ke6 Bh8 6.Rc7 Kb8 7.Re7 Ne4 8.Kd5 Nc3+-+ ; 3.Kf4!? Bxg7 4.Re7 Bh6+-+ ) 3...Bxg7 4.Re7 Ne5+ 5.Kf4! Nf7 6.Re8+ Ka7 7.Re7+ Kb8 8.Re8+ Kc7 9.a6! (9.Re7+!? Kd6 10.Rb7 Be5+! 11.Kf3 Bd4-+ ) 9...Bd4 10.Re7+ Kb8 11.Re8+ Ka7 12.Re7+ Kb8 positional draw ] 3.Kf5 Nf6 4.Re1!! [4.Re3!? Bd7+ 5.Kg6 Nd5-+ ; 4.Re7!? Bh8 5.Re6 Bd7-+ ; 4.Rg2!? Nh5-+ ] 4...Bb5 [4...Bc6 5.Kg6! Bh8 6.Re6 Nd5 7.Rxc6 Ne7+ 8.Kh7= ] 5.Kg6 Bh8 6.Rh1 Be8+ [6...Bd3+ 7.Kf7 Nh7 8.Kg8= ] 7.Kf5! Bd7+ 8.Kg6 Be8+ 9.Kf5 Nh5 10.Kg4! [10.Kg5 Bf6+ 11.Kg4 Ng7-+ ] 10...Nf6+ 11.Kf5 Bg7 12.Re1 positional draw.

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