[Event "South Africa"] [Site "South Africa"] [Round "0"] [White "Mackie"] [Black "Bergendorff"] [Result "0-1"] [ECO "E22"] [Opening "Nimzo-Indian: Spielmann, 4...c5"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxc5 8. Qc2 O-O 9. e4 f5 10. exf5 Rxf5 11. O-O-O Qa5 12. a3 Rxf3 13. axb4 Nb3+ 14. Qxb3 Qa1+ #R 0-1