Nº17 Harold van der Heijden (Netherlands)

Win

Harold van der Heijden (Netherlands)

wKc5,Bc8,Rb2,b7,Pa7,c7,f7/bKa8,Qf3,Nd2,Bb3

1.R7xb3!
1.R2xb3? Qh5+= (1…Qf2+=) 2.Kb4 e.g. 2…Qh4+ 3.Bg4 Qxg4+ 4.Ka3 Nb1+ 5.Ka2 Qe2+ 6.Ka1 Qa6+ 7.Kb2 Qe2+ 8.Ka1 Qa6+ 9.Kxb1 Qa2+ 10.Kc1 Qc2+ 11.Kxc2; 1.Rb8+? Kxa7 2.Rb7+ Ka8 3.R7xb3 Nxb3+ 4.Rxb3 Qxb3= e.g. (4…Qf2+) 5.Bb7+ Kxb7 6.c8Q+ Kxc8=

1…Nxb3+ 2.Rxb3 Qxb3
main 2…Qxf7 3.Bb7+ (3.Rb8+ Kxa7 4.Rb7+ Ka8=) 3…Kxa7 4.c8N+! (4.c8Q? e.g. 4…Qc4+ 5.Kxc4 stalemate) 4…Kb8 5.Bd5+ Kxc8 6.Bxf7+-

3.Bb7+!! Qxb7
3…Kxb7 4.a8Q+- (4.c8Q+)

4.f8R+!
4.f8Q? Kxa7 5.c8Q Qxc8+ 6.Qxc8 stalemate

4…Kxa7 5.c8Q Qxc8+
5…Qc6+ 6.Kd4+- (or 6.Kb4 ; 6.Kxc6? stalemate; 6.Qxc6 stalemate)
5…Qb5+ 6.Kd4+- (6.Kd6)

6.Rxc8+-

Three promotion: Q, R and N