[Event "IBM"]
[Site "Amsterdam"]
[Date "1962.08.21"]
[Round "6"]
[White "Rellstab, Ludwig Sr"]
[Black "Kieninger, Georg"]
[Result "1/2-1/2"]

1. d4 c5 2. d5 e5 3. e4 d6 4. Nc3 a6 5. a4 Ne7 6. Bd3 Ng6 7. Nf3 Be7 8. O-O O-O 9. Ne2 Bg4 10. Ng3 Nh4 11. Be2 Bxf3 12. Bxf3 Nd7 13. Bg4 Nf6 14. Bg5 Nxg4 15. Bxh4 Bxh4 16. Qxg4 Bxg3 1/2-1/2