Ostapenko, Alexander - Kurkin, S.

URSS 1970

1.e4 c5 2.Cf3 Cc6 3.d4 cxd4 4.Cxd4 e6 5.Cc3 d6 6.Ae3 Cf6 7.f4 Ae7 8.Df3 0–0 9.0–0–0 Ad7 10.Ae2 Cxd4 11.Axd4 Ac6 12.g4 Da5 13.g5 Cd7 14.Thg1 b5 15.Dh5 b4 16.Cd5 exd5 17.Dh6 Ce5 18.fxe5 Tfc8 19.e6 gxh6 20.gxh6+ Rf8 21.Tdf1 Ag5+ 22.Txg5 Tc7 23.Ag7+ Re8 24.exf7+ Rd7 25.Ag4+ Re7 26.Af6+ Rf8 27.Tg8+ Rxf7 28.Tg7+ Re8 29.Ah5+ Tf7 30.Txf7 1–0

    

Después de 15...b4               Después de 18...Tfc8