[Event "HSG intern 2018-19"]  [Site ""]  [Date "2019.05.23"]  [Round "?"]  [White "Jan Nagel"]  [Black "Wim van der Wijk"]  [Result "0-1"]  [ECO "C01"]  [Annotator "Wim"]  [PlyCount "58"]   {Zwakke schakel.} 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 c5 6. dxc5  Bxc5 7. O-O O-O 8. Bg5 Nc6 9. c3 Bg4 10. h3 Bh5 11. g4 Bg6 12. Bxg6 hxg6 $15 (  12... fxg6 $17) 13. Nbd2 Qd6 14. Kg2 Rfe8 15. Nb3 Bb6 16. Nbd4 Ne4 $17 17. Bh4  Nxd4 18. Nxd4 Bc7 19. f4 a6 20. Qd3 Nc5 21. Qf3 Re4 22. Bg3 Qb6 23. b4 Na4 24.  Nc2 Rae8 25. Rae1 Qc6 $1 $19 {Pion c3 is de zwakke schakel in de witte  stelling.} 26. Rxe4 dxe4 27. Qe3 Bb6 28. Nd4 Qxc3 29. Qxc3 Nxc3 0-1