[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.03"]
[Round "5"]
[White "Petursson, Sturla"]
[Black "De Groot, Adriaan"]
[Result "0-1"]
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bd3 e5 7. d5 Nbd7 8. Nge2 Nh5 9. Be3 f5 10. exf5 gxf5 11. Qc2 Nc5 12. Bxc5 dxc5 13. O-O-O Qg5+ 14. Kb1 Qxg2 15. Rhg1 Qxf3 16. Ng3 Nxg3 17. Rxg3 Qh5 18. Rdg1 Rf7 19. Qg2 Qh6 20. Rh3 Qf6 21. Qe2 e4 22. Qh5 exd3 23. Qxh7+ Kf8 24. Rhg3 Qh6 25. Qxh6 Bxh6 26. Rg8+ Ke7 27. Re1+ Kf6 28. d6 Rf8 29. Nd5+ Kf7 30. Rgg1 Be6 31. Nxc7 Rae8 32. b3 Bf4 33. Nxe8 Rxe8 34. h4 Bxd6 35. h5 Rh8 36. Rh1 f4 37. h6 Bf5 38. Reg1 d2+ 39. Kb2 Be5+ 40. Ka3 Bc2 0-1