[Event "IBM"]
[Site "Amsterdam"]
[Date "1972.??.??"]
[Round "?"]
[White "Polugaevsky, Lev"]
[Black "Kortschnoj, Viktor Lvovich"]
[Result "1/2-1/2"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Nc6 6. Bg2 Nc7 7. a3 e6 8. O-O Be7 9. e3 Qd3 10. Qe2 Qxe2 11. Nxe2 Bd7 12. d4 Na5 13. b4 cxb4 14. axb4 Bxb4 15. Bd2 Nc6 16. Bxb4 Nxb4 17. Rfb1 a5 1/2-1/2