Nº17 Harold van der Heijden

Win

Section A.

Harold van der Heijden (Netherlands)

wKd7,Nb3,Pb2,c2/bKb1,Nc8

1.Na1!
1.Kxc8? Kxc2=

1…Nb6+
1…Kxb2 2.Kxc8+-

2.Kc6 Nc4
2…Na4 3.b3 Nc3 4.b4 Kxa1 5.b5 Kb2 6.b6+-

3.b4
3.b3? Na3 4.b4 Kxa1 5.b5 Kb2 (5…Kb1) 6.b6 Nc4 7.b7 Na5+=

3…Kxa1 4.Kc5
4.b5? Kb2=

4…Ne5 5.Kd5
5.Kd6? Nc4+ 6.Kc5 Ne5 repeats

5…Nd7 6.c4
6.Kc6? Ne5+ 7.Kd5 (7.Kd6 Nc4+ 8.Kc5 Ne5 repeats) 7…Nd7 repeats

6…Kb2 7.c5
7.b5? Kb3 8.c5 Kb4 9.c6 Nb6+=

7…Kb3
7…Kc3 8.c6 Nb6+ 9.Kc5 Na4+ 10.Kb5+-

8.c6
8.b5? Kb4= (8…Ka4)

8…Nb6+ 9.Kc5 Na4+
9…Na8 10.b5 Ka4 11.b6 Ka5 12.b7 wins, e.g. 12…Nc7 13.b8Q (13.Kd6 Nb5+) 13…Na6+ 14.Kd6 Nxb8 15.c7+-

10.Kb5! Nc3+ 11.Ka5! Nd5
main 11…Kc4 12.c7 Sd5 13.c8Q+ +- excelsior
or similarly: 11…Ne4 12.b5 Kc4 13.b6 Kc5 14.b7 Kxc6 15.b8Q+-

12.b5 Kc4 13.b6 Kc5 14.b7
14.c7? Nxb6=

14…Kxc6
14…Nb4 15.c7 e.g. 15…Nc6+ 16.Ka4+-

15.b8Q+- excelsior