Nº9 Leonid Topko


Section B.2.

Leonid Topko (Ukraine)


1.Ngh4+ Kg4 2.Bd7+
2.Nxg2? Ra5 3.Bc6 Ra1+ 4.Ke2 Ra2+ 5.Kf1 Rf2+ 6.Kg1 Rxf3 7.Bxf3+ Kxf3 8.Ne1+ Ke2 9.Nc2 Be3+ 10.Kg2 Bc5–+

2…Kf4 3.Nxg2+ Kxf3 4.Bc6+ Kg4 5.Bd7+ Kf3 6.Bc6+ Kg4 7.Bd7+
There is one eternal check. Black can move on to the second eternal check. wB active, wS passive. 7…Kh5
7…Rf5 8.Nh4 g6 (or 8…Bd2+ 9.Ke2 g6 10.Nxf5 gxf5 11.Bc6 Kh3 12.Kf1=) 9.Nxf5 gxf5 10.Kf1= (10.Bc6=)

8.Be8+? g6–+

8…Kh4 9.Ng2+ Kh5 10.Nf4+= New eternal check. wS active, wB passive. Mutual change.