[Event "Palma de Mallorca Gran Torneo-07"]
[Site "Palma de Mallorca"]
[Date "1971.12.15"]
[Round "13"]
[White "Csom, Istvan"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]

1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. dxc5 Bxc5 8. Qxd8+ Kxd8 9. a3 Ke7 10. b4 Bd6 11. Bb2 b5 12. Be2 Bb7 13. Nbd2 Nbd7 14. Rac1 1/2-1/2