Been-Koomen Variation

Coups: 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 c5

Partie
1934 Leningrad – Round 1 – Chekhover, Vitaly – 0-1 – Romanovsky, Pjotr – G45
1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 c5 5. dxc5 d4 6. Ne4 Bxc5 7. Nxc5 Qa5+ 8. Qd2 Qxc5 9. Bxf6 gxf6 10. g3 Nc6
1952 URS Ch sf – Round ? – Kuzminykh, Evgeny – 0-1 – Taimanov, Mark E – G2
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. Bxf6 Qxf6 6. e3 cxd4 7. exd4 dxc4 8. Nf3 Be7 9. Bxc4 O-O 10. Qe2 Nc6