1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3

4...d5  5.a3 Bxc3 6.bxc3 c5! 7.cxd5! Nxd5! 8.dxc5!? Qa5! [8...f5!? 9.Nh3!? 0-0 {9...Nf6 10.c4!? (10.Be3! 0-0! 11.Qb3 Nfd7! 12.a4! Qc7! 13.Qa3 b6! 14.a5!? bxc5 15.Nh3 Ba6 16.Bxa6 Nxa6 17.Qa4 Ne5 18.Nf2!? Rab8 19.f4 Nc6 20.0-0 Rfd8 21.Qc4!? ±)10...Qh4!? 11.Nf2 Nf6 12.e3 Nc6 13.Be2 Rd8 14.Qc2 Nd7 15.0-0 Nxc5 16.Bb2 e5 17.Nd3 Nxd3 18.Bxd3 Rf8 19.Rad1 Be6 20.c5! a6 21.f4 e4 22.Bc4 Qe7 23.Rd6 Bxc4 24.Qxc4+ Qf7 25.Rd7 Qxc4 26.Rxg7+  +-}] 9.e4! Nc7 10.Qd4! f6! 11.Qb4!? Nc6 12.Qxa5 Nxa5 13.Rb1 Bd7 14.c4 Ba4 15.Rb4!? Bb3 16.Nh3 0-0-0 17.Be2 Ba2 18.Nf4 Rhe8 19.Nh5!? Re7 20.e5! ±