[Event "Interzonal-01"]
[Site "Saltsjobaden"]
[Date "1948.07.20"]
[Round "4"]
[White "Book, Eero"]
[Black "Stoltz, Gosta"]
[Result "1-0"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. cxd5 Nxd5 7. e4 Nxc3 8. bxc3 O-O 9. Be2 Qc7 10. O-O Nd7 11. a4 c5 12. e5 Nb8 13. Ba3 Nc6 14. Bxc5 Nxe5 15. Qa3 Nc6 16. d5 b6 17. d6 Qb7 18. dxe7 Re8 19. Bd6 Nxe7 20. Ng5 Bd7 21. Bc4 Nd5 22. Rad1 Be6 23. Qb3 Nc7 24. Bxc7 Qxc7 25. Nxe6 fxe6 26. Bxe6+ Kh8 27. Bd5 Rad8 28. c4 Be5 29. g3 Rf8 30. Kg2 Qc5 31. h4 Rd6 32. f4 Bf6 33. Rfe1 a5 34. Re4 Qb4 35. Qc2 Rc8 36. Rb1 Qa3 37. Qb3 Qxb3 38. Rxb3 h5 39. f5 Kg7 40. Re6 Rxe6 41. Bxe6 Rc6 42. Bd5 Rd6 43. fxg6 Kxg6 44. Rf3 Rd7 45. Be4+ Kg7 46. Rf5 Rd4 47. Kf3 Rxc4 48. Rxh5 Rxa4 49. Kf4 Ra1 50. Rh7+ Kg8 51. Rb7 Rf1+ 52. Kg4 Be5 53. Re7 Bd6 54. Rd7 Be5 55. h5 a4 56. h6 a3 57. Ra7 Rf8 58. Rxa3 Kf7 59. Kf5 Bb2 60. Ra7+ Kg8+ 61. Kg6 Rf6+ 62. Kh5 Rf8 63. g4 Rf2 64. g5 Kf8 65. Kg6 Re2 66. Ra8+ Ke7 67. Ra2 Rd2 68. Rxb2 1-0