Nº25 Sergey Osintsev & Valery Shanshin

Draw

Section B.2.

Sergey Osintsev & Valery Shanshin (Russia)

wKc4,Qg7,Bf7/bKa5,Nb5,d7,Bb1,Pa2,c5,h3

1.Be8!
Try 1.Qh8? Nd6+! 2.Kb3 Nxf7 3.Qa8+ Kb6! (3…Kb5? 4.Qa4+ Kb6 5.Qxd7 h2 6.Qe6+=) 4.Kb2 Nfe5 5.Qh8 Nd3+ 6.Ka1 Nb4–+
or 1.Bd5? Nb6+! 2.Kxc5 Nxd5 3.Kxd5 h2 4.Qh8 h1Q+! 5.Qxh1 a1Q–+

1…Nb6+!
1…Nd6+ 2.Kb3! h2 3.Qxd7 c4+ 4.Kb2 a1Q+ 5.Kxa1 h1Q 6.Qc7+=
1…Na3+ 2.Kb3! h2 3.Qxd7! c4+ 4.Kb2 c3+ 5.Kb3 (5.Ka1? Nc2# model mate) 5…Bc2+ 6.Kxa2 h1Q 7.Qc7+=

2.Kxc5
2.Kb3? Nd4–+

2…Na4+
2…h2? 3.Bxb5 Na4+ 4.Bxa4 h1Q 5.Qa7#

3.Kc4!
3.Kd5? Nac3–+

3…Nd6+!
3…h2 4.Qe5 Nac3 5.Bxb5 Bd3+ 6.Kxd3 h1Q=

4.Kd5!
Try 4.Kb3? Nc5+! 5.Kb2 Nc4+! 6.Ka1 Nb3#! model mate or 5.Ka3 Nc4#

4…Nxe8
4…Nb5 5.Bxb5! h2 6.Qc7(a7)+ Kxb5=

5.Qe5!
5.Qa7+? Kb5! 6.Qd7+ Kb4! 7.Qe7+ Kb3!–+

5…a1Q! 6.Qxa1 h2 7.Qh8!
7.Qxb1? Nc3–+

7…Bh7! 8.Qa1!
8.Qxh7? Nf6–+

8…Bb1 9.Qh8= positional draw