Estudio de Oleg Pervakov (2002). Blancas juegan y ganan .

- 1er premio Sochniev -

1.a7! [1.dxc4+ Rxf4 2.a7 Cxc4! 3.b8=D Cxa3–+; 1.Dxb2 Cxb7 2.axb7 ( ‹2.Dxb7+ Rxf4 3.De4+ Rg5–+) 2...Db8=] 1...Db6! [1...Cb5 2.a8=D b1=D+ 3.Rxb1 Cxa3+ 4.Ra2+-] 2.dxc4+ Rxf4 3.Dg3+! Rxf5 [3...hxg3 4.fxg3+ Rxg3 5.Axb6 Axc4+ (5...Cxc4 6.b8=D+-) 6.Rxb2 Cxb7 7.a8=D Ad5 8.Da1+-] 4.Dxg4+! Rf6! [ 4...Rxg4 5.f3++-] 5.Dg5+! Re6! [5...Rxg5 6.f4++-] 6.Dxe5+! Rd7! [6...Rxe5 7.f4++- albino] 7.b8=C+! [7.Dxd6+ Dxd6 8.b8=D Axc4+ 9.Rxb2 Dd2+ 10.Ra3 Da5+=] 7...Rd8! [7...Rc8 8.Dh8+ Rb7 (8...Rc7 9.a8=C++-) 9.a8=D+! Rxa8 10.Cd7++-] 8.Df6+! [8.Dg5+ Re8 9.Dg8+ Re7 10.Df8+ Rxf8! 11.Cd7+ Rg7! 12.Cxb6 Cxc4! 13.a8=D Ad3 14.Dg2+ Rh7!=; 8.Dh8+ Ce8!=; ‹8.Cc6+ Dxc6 9.Da5+ Re7 10.a8=D Dxc4+ 11.Rxb2 De2+ 12.Rc1 Dc4+=] 8...Re8 9.Dh8+ Re7 10.Dxh4+! Re8! 11.Dh8+ Re7 12.Df8+! Re6! [12...Rxf8 13.Cd7+ Rg7 14.Cxb6 Cxc4 15.a8=D Ad3 16.Dg2+ Ag6 17.Dxg6+ Rxg6 18.Cxc4+-] 13.Dh6+ Re7 [13...f6 14.Dxf6+! (14.De3+ Dxe3 15.fxe3 Axc4+ 16.Rxb2 Ad5 17.Ca6 Cb5 18.Ah2 Aa8 19.Ab8 Rd5=) 14...Rxf6 15.Cd7++-] 14.De3+! Dxe3 15.Cc6+! Rd7 16.fxe3+- 1–0