Heystek - Welling, Gerard

Holanda 1979

1.d4 d5 2.Cf3 c6 3.Af4 e6 4.Cbd2 Ce7 5.e3 Cg6 6.Ag3 Ad6 7.Ad3 0–0 8.c3 f5 9.Dc2 b6 10.Axd6 Dxd6 11.g4 c5 12.g5 Aa6 13.h4 Axd3 14.Dxd3 Cc6 15.h5 Cge7 16.0–0–0 c4 17.De2 b5 18.b4 a5 19.a3 axb4 20.axb4 Cxb4 21.cxb4 Ta2 22.Cxc4 Da6 23.Cfd2 Tc8 24.Dd3 dxc4 25.Dc3 Cd5 0–1

Después de 20.axb4