Nº27 Oleg Pervakov

Win

Oleg Pervakov (Russia)

wKd1,Qa8,Rg2,h5,Pd2,d6/bKe4,Qc8,Rc5,g4,Pa2,c6,h2

All pieces are mutually attacked! 1.Re2+
1.Qa4+? Kf3 2.Qb3+ Kxg2=

1…Kd4! 2.Qa4+ Rc4 3.Re4+!
3.Qa7+? c5 4.Qg7+?? Rxg7–+

3…Rxe4
3…Kxe4 4.Qxc4+ Kf3 5.Qf1+ Ke4 6.Qe2+ Kd4 7.Qe3+ Kc4 8.Qc3#

4.Qa7+ Kd3!
4…c5 5.Qg7+! Kd3 6.Qg3+ Kd4 7.Qf2+ Kd3 8.Rd5+ Rcd4 9.Qf1+ Re2 10.Qxe2#

5.Qa3+ Kd4 6.Qb2+! (6.Qd6#??)
6.d7? h1Q+! 7.Rxh1 Qxd7–+

6…Kd3 7.d7! a1Q+
7…Re1+ 8.Kxe1 Qxd7 9.Qb3+ Ke4 10.Qe3#

8.Qxa1 h1Q+ 9.Rxh1 Qxd7 10.Rh3+!
10.Qa3+? Kd4 11.Qd6+?? Qxd6–+

10…Qxh3
10…Re3 11.Rxe3#

11.Qa3+ Kd4
11…Rc3 12.Qxc3#

12.Qd6# Model mate with two selfblocks.