[Event "San Antonio IT"]
[Round "12"]
[Site "San Antonio"]
[Date "1972"]
[White "Hort, Vlastimil"]
[WhiteElo "2600"]
[Black "Karpov, Anatoly"]
[BlackElo "2630"]
[Result "1/2-1/2"]
[ECO "B23"]
[Opening "Sicilian, Closed"]
 1. e4   c5
 2. Nc3  e6
 3. Nf3  Nc6
 4. d4   cxd4
 5. Nxd4 a6
 6. g3   Nge7
 7. Bg2  Nxd4
 8. Qxd4 Nc6
 9. Qe3  d6
10. b3   Be7
11. Bb2  O-O
12. O-O  Rb8
13. Ne2  b5
14. Rac1 Qa5
15. a3   Qb6
16. Qd2  a5
17. Rfd1 Rd8
18. Nf4  
1/2-1/2