Nº20 Pavel Arestov

Win

Pavel Arestov (Russia)

wKc6,Nc2,Rd5/bKb8,Nc1,Be2,Pb3

1.Rd8+!
1.Nd4? b2 2.Rd8+(2.Nb5 Bf3 =) 2…Ka7 3.Rd7+ Ka6! 4.Rb7 Bc4! 5.Rxb2 Nd3 6.Rb1 Ka5! 7.Ra1+ Kb4 =.

1…Ka7 2.Rd7+!
2.Nd4? b2(Bd3) 3.Rd7+ Ka6=.

2…Ka6!
2…Kb8 3.Nd4 b2 (3…Ba6 4.Kb6 +-) 4.Rb7+ Kc8 5.Rxe2 +-.

3.Nb4+ Ka5 4.Kc5! Ba6!
4…b2 5.Ra7+ Ba6 6.Rxa6#.

5.Ra7!
5.Rd6? Bb7(Bc8)! =;
5.Nc6+? Ka4 6.Ra7 b2 =.

5…Nd3+!
5…b2 6.Rxa6#.

6.Nxd3 b2! 7.Ne5!!
7.Nxb2? model stalemate with pin Ba6.

7…b1Q 8.Nc4+!
8.Nc6+? Ka4 9.Rxa6+ Kb3 =.

8…Ka4 9.Rxa6+ Kb3 10.Nd2+- fork, win.
10.Rb6+? Ka4 11.Rxb1 – stalemate or 11.Ra6+ Kb3 – loss of time.