[Event "Birmingham U20"]
[Site "Birmingham"]
[Date "1950.04.03"]
[Round "?"]
[White "Van Bastelaere, Gaston"]
[Black "Sieben, Ivan"]
[Result "1/2-1/2"]
[ECO "B45"]
[PlyCount "100"]
[EventDate "1950.04.03"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Bb4 7. Bg2 Qa5 8. 0-0 Bxc3 9. bxc3 Qxc3 10. Nb5 Qxa1 11. Nc7+ Kd8 12. Qd6 Qe5 13. Qxe5 Nxe5 14. Nxa8 Nh5 15. f4 Nc6 16. Bb2 b6 17. e5 g6 18. Bxc6 dxc6 19. Rd1+ Bd7 20. Ba3 c5 21. Rd6 Kc8 22. Nxb6+ axb6 23. Rxb6 Ba4 24. Ra6 Be8 25. Bxc5 Rg8 26. a4 f6 27. a5 fxe5 28. fxe5 Ng7 29. Ra7 Bc6 30. a6 h5 31. Re7 Bd5 32. a7 g5 33. Bb6 Ne8 34. c4 Ba8 35. Rxe6 h4 36. g4 Kd7 37. Rh6 Rg7 38. c5 Re7 39. c6+ Kc8 40. Bd4 Nc7 41. Rh8+ Re8 42. Rh6 Ne6 43. Bb6 Bxc6 44. Rg6 Be4 45. Be3 Kb7 46. Rf6 Nd8 47. Rb6+ Kc7 48. Rb8 Kd7 49. a8Q Bxa8 50. Rxa8 Rxe5 1/2-1/2

[Event "Birmingham U20"]
[Site "Birmingham"]
[Date "1950.04.??"]
[Round "?"]
[White "Barda, Yngvar"]
[Black "Van Bastelaere, Gaston"]
[Result "1-0"]
[ECO "A48"]
[PlyCount "39"]
[EventDate "1950.04.03"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. b3 Bg7 4. Bb2 0-0 5. e3 d6 6. Bd3 Nbd7 7. 0-0 b6 8. Nbd2 Bb7 9. c4 Re8 10. e4 c5 11. d5 Nxe4 12. Nxe4 Bxb2 13. Rb1 Bg7 14. Nfg5 Nf6 15. Qe2 h6 16. Nxf7 Kxf7 17. Ng5+ Kg8 18. Qe6+ Kh8 19. Nf7+ Kh7 20. Nxd8 1-0

[Event "Birmingham U20"]
[Site "Birmingham"]
[Date "1950.04.??"]
[Round "?"]
[White "Way, JA."]
[Black "Van Bastelaere, Gaston"]
[Result "0-1"]
[ECO "D98"]
[PlyCount "92"]
[EventDate "1950.04.03"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 0-0 7. e4 Bg4 8. Ne5 Be6 9. Qd3 Nfd7 10. Nxd7 Bxd7 11. Be3 a5 12. Be2 Na6 13. Rd1 Qc8 14. Nd5 Qd8 15. 0-0 Be6 16. Nc3 Nb4 17. Qb1 c6 18. a3 Na6 19. d5 cxd5 20. Nxd5 Qe8 21. Bb6 Bxd5 22. Rxd5 Qc6 23. Bxa5 Rac8 24. Bb5 Qc2 25. Rd2 Qxb1 26. Rxb1 Nc5 27. Re2 Nb3 28. Bb4 Nd4 29. Bxe7 Nxe2+ 30. Bxe2 Rfe8 31. Bb4 Rxe4 32. Bf3 Rec4 33. g3 Rc1+ 34. Rxc1 Rxc1+ 35. Kg2 b6 36. b3 Bf8 37. Bxf8 Kxf8 38. Bd5 Ke7 39. Kf3 Rc3+ 40. Ke2 Rc2+ 41. Ke3 Rb2 42. Bc4 f6 43. a4 Kd6 44. Bg8 h6 45. Bf7 g5 46. Bc4 Kc5 0-1

