[Event "K Antwerp SK vs. Rotterdam SK"]
[Site "Rotterdam"]
[Date "1967.10.21"]
[Round "1"]
[White "Riksen, Ben"]
[Black "Borodin, Vladimir"]
[Result "1-0"]
[ECO "E26"]
[Opening "Nimzo-Indian: Saemisch, O'Kelly variation"]
[Board "4"]
[Source "De Volksgazet 24/10/1967"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3
Nc6 9. Ne2 O-O 10. Ng3 Re8 11. d5 Ne5 12. e4 Ba6 13. O-O Bxc4 14. Bxc4 Nxc4
15. Qe2 b5 16. a4 a6 17. d6 e5 18. Nf5 Kh8 19. f4 Rc8 20. Ne7 Rxe7 21. dxe7 Qxe7
22. f5 d5 23. axb5 axb5 24. Bg5 d4 25. Ra6 Nd6 26. cxd4 cxd4 27. Rfa1 Qd7
28. Ra7 Qc6 29. Bxf6 gxf6 30. Re1 d3 31. Qxd3 Nxe4 32. Qxe4 1-0

[Event "K Antwerp SK vs. Rotterdam SK"]
[Site "Rotterdam"]
[Date "1967.10.21"]
[Round "1"]
[White "Mollekens, Roeland"]
[Black "van Wijgerden, Cornelis"]
[Result "1-0"]
[ECO "B17"]
[Opening "Caro-Kann: Petrosian-Smyslov variation (5.Bc4)"]
[Board "17"]
[Source "De Volksgazet 24/10/1967"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6
8. Bd3 c5 9. dxc5 Bxc5 10. Bf4 Nbd5 11. Be5 Nd7 12. Nxe6 fxe6 13. Bxg7 Nf4
14. Qe4 Rg8 15. Qxh7 Nxd3+ 16. cxd3 Ke7 17. O-O-O Kd6 18. Nf3 b5 19. d4 Bb6
20. a3 Ba5 21. Be5+ Kd5 22. b4 Rxg2 23. Rhe1 Rg4 24. h3 Qg8 25. Qd3 1-0