[Event "IBM"]
[Site "Amsterdam"]
[Date "1971.07.19"]
[Round "6"]
[White "Ivkov, Borislav"]
[Black "Uhlmann, Wolfgang"]
[Result "1/2-1/2"]

1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bg4 5. Bg2 g6 6. Bb2 Bg7 7. d3 Bxf3 8. Bxf3 O-O 9. O-O Nbd7 10. Nd2 e6 11. Qc2 Qe7 12. a3 Rfc8 13. Rac1 Ne8 14. Bxg7 Kxg7 15. Qb2+ Qf6 1/2-1/2