Nº5 Oleg Pervakov

Win

Oleg Pervakov (Russia)

wKd2,Ne5,Pb6,f2,g3/bKb1,Nc1,Ra1,Pa2

1.Nd3!
Logical try–1: 1.b7? Nb3+ 2.Kc3 Kc1 3.b8Q (3.Nd3+ Kd1 4.Nb2+ Ke2 5.Kxb3 Rh1 6.Kxa2 Rh8=) 3…Rb1 4.Qc8 Kd1 5.Qg4+ (5.Qd7+ Ke1 6.Nf3+ Kf1 7.Qh3+ Ke2=) 5…Ke1 6.Qe4+ Kf1 7.Qh1+ Ke2! 8.Qf3+ Kf1=
1.Nc4? Nb3+ 2.Kc3 (2.Kd1? Na5!–+) 2…Kc1 3.Kxb3 Rb1+ 4.Kxa2 Rb4=

1…Nxd3
1…Nb3+ 2.Kc3 Na5 3.f4 Nb7 4.f5 Nd6 5.Kb3! Nc4 6.Kxc4 Kc2 7.Nb4+ Kd2 8.Nxa2 Rxa2 9.f6!+-

2.b7 Nb2! 3.f3!!
Logical try-2: 3.g4? Nc4+ 4.Kc3 Kc1 5.b8Q Rb1 6.Qf4+ Kd1 7.Qf3+ Ke1 8.Qe4+ Ne3! 9.Qxe3+ Kf1 10.Qd3+ Kg1!=
3.b8Q?= Stalemate

3…Nc4+ 4.Kc3 Kc1 5.b8Q Rb1!
5…Kd1 6.Qb3+ Ke1 7.Qc2+-

6.Qf4+ Kd1 7.Qd4+ Ke1 8.Qg1+! Ke2 9.Qg2+ [Or 9.Qh2+ ] 9…Ke3 10.Qxa2 Rc1+ 11.Kb4! Kxf3 12.Qa8+! Kxg3 13.Qe4 zz 13…Nd2
13…Kf2 14.Qf4++-

14.Qe3+-