Nº16 Oleg Pervakov

Win

Oleg Pervakov (Russia)

wKg8,Ne7,f4,Pd2,f2,g3,g6,h2/bKf6,Nb7,e5,Bd1,Pa5,c4,c6,e4,f7

1.g7 e3!
1…c3 2.Kh8! c2 (2…e3 3.g8Q Kxe7 4.Qg7 Nc4 5.dxe3 c2 6.Qc3+-) 3.Ng8+! Kf5 (3…Kg5 4.Nh6 Ng6+ 5.Nxg6+-) 4.Nh6+ Kf6 5.g8N+ Kg5 6.h4#!

2.fxe3!
Thematic move 2.dxe3? c3 3.Kh8 c2 4.g8Q (4.Ng8+ Kf5 5.Nh6+ Ke4!=) 4…Kxe7! 5.Qg5+ f6 6.Qg7+ Ke8 7.Qg8+ Kd7! 8.Ne2 Bxe2 9.Qh7+ Nf7+! 10.Qxf7+ Kc8 11.Qf8+ Kc7 12.Qa3 Bd3 13.h4 a4 14.Kg7 Na5 15.h5 Nb3=

2…c3! 3.dxc3 Nd6 4.Kh7!
Logical try 4.Kh8? Ng6+ 5.Nfxg6 fxg6 6.Ng8+?! (6.g8Q Nf7+ 7.Kh7 Ng5+ 8.Kh6 Nf7+= Perpetual check, or 9.Qxf7+ Kxf7 10.Nxc6 a4=) 6…Ke5! 7.Nh6 Bb3 8.Ng4+ Kf5 (e4)–+

4…Bc2+ 5.e4! Bxe4+ 6.Kh8 Ng6+
6…Kxe7 7.g8Q Ne8 8.Qg5+ f6 9.Qh5! a4 10.Kg8 Bc2 11.Qe2 Bb3+ 12.Kh7 a3 13.Ng6+ Kd6 14.Qd2+ Kc7 15.Nxe5 fxe5 16.Qe3+-

7.Nfxg6!
Thematic move 7.Nexg6? fxg6 8.g8Q Nf7+ 9.Kh7 Ng5+! 10.Kh6 Nf7+= Perpetual check

7…fxg6 8.Ng8+!
Thematic move 8.g8Q? Nf7+ 9.Kh7 Ng5+! 10.Kh6 Nf7+= Perpetual check

8…Ke5 9.Nh6! Bd5 10.Ng4+ Kf5
10…Ke4 11.Nf6+ Kf5 12.Nxd5+-

11.Ne3+ Kf6 12.Nxd5+-