[Event "Alekhine memorial"]
[Round "4"]
[Site "Moscow"]
[Date "1971.11.28"]
[White "Karpov, Anatoly"]
[WhiteElo "2540"]
[Black "Gheorghiu, Florin"]
[BlackElo "2530"]
[Result "1/2-1/2"]
[ECO "B92"]
[Opening "Sicilian, Najdorf, Opocensky Variation (6.Be2)"]
 1. e4   c5
 2. Nf3  d6
 3. d4   cxd4
 4. Nxd4 Nf6
 5. Nc3  a6
 6. Be2  e5
 7. Nb3  Be6
 8. O-O  Nbd7
 9. f4   Qc7
10. f5   Bc4
11. a4   Be7
12. a5   O-O
13. Bg5  Rfc8
14. Bxc4 Qxc4
15. Rf2  h6
16. Bxf6 Nxf6
17. Ra4  Qc7
18. Rd2  b5
1/2-1/2