[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.05"]
[Round "9"]
[White "Christoffersen, Hans Christian"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. exd6 exd6 5. Nf3 Be7 6. Bd3 Bg4 7. Be4 c6 8. Bxd5 cxd5 9. Nc3 Qa5 10. O-O O-O 11. a3 Nc6 12. Be3 Be6 13. b4 Qc7 14. Ne2 Rac8 15. c4 Nb8 16. c5 b6 17. Bf4 Qd8 18. cxb6 Qxb6 19. Qd3 Rc4 20. Bg5 Qd8 21. Bxe7 Qxe7 22. Nd2 Rcc8 23. Rfe1 Nd7 24. Ng3 Nb6 25. Nf3 Nc4 26. h4 h6 27. Re2 Qf6 28. Rae1 Rc7 29. a4 a6 30. Rb1 Rb8 31. Ra2 Rcb7 32. Qc3 h5 33. Ng5 Qf4 34. Qd3 Kf8 35. Nxe6+ fxe6 36. Re1 Rxb4 37. Qh7 Qxh4 38. Nxh5 Qxd4 39. Rae2 Rb2 40. Re3 Nxe3 41. fxe3 Qg4 42. Nf4 Ke7 43. Ng6+ Kf6 44. Rf1+ Kg5 45. Nf4 Kf6 1/2-1/2