[Event "NED-ch U20 op"]
[Site "Borne"]
[Date "2019.08.10"]
[Round "9"]
[White "Lettko, Michael"]
[Black "Butzen, Robin"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1386"]
[BlackElo "1967"]
[PlyCount "46"]
[EventDate "2019.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 a6 3. f4 b5 4. Nf3 Bb7 5. d3 e6 6. g3 d5 7. exd5 exd5 8. Bg2 Nf6 9. 0-0 Be7 10. f5 0-0 11. Bf4 d4 12. Ne2 Nbd7 13. h3 Nd5 14. Bd2 Bd6 15. Ng5 N7f6 16. Nf4 Ne3 17. Bxe3 Bxg2 18. Kxg2 dxe3 19. Qe2 Bxf4 20. Rxf4 Nd5 21. Rg4 h5 22. Nxf7 Rxf7 23. Rh4 Qxh4 0-1

[Event "NED-ch U20 op"]
[Site "Borne"]
[Date "2019.08.09"]
[Round "8"]
[White "Hofstra, Tijmen"]
[Black "Lettko, Michael"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "1732"]
[BlackElo "1386"]
[PlyCount "43"]
[EventDate "2019.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. exd5 cxd5 5. Bb5+ Nc6 6. h3 Bxf3 7. Qxf3 e6 8. d3 Nge7 9. Bg5 Qc7 10. 0-0 a6 11. Bxc6+ Nxc6 12. Rfe1 Nd4 13. Qxd5 Nxc2 14. Rxe6+ fxe6 15. Qxe6+ Be7 16. Nd5 Qd7 17. Qe2 Nxa1 18. Nxe7 Kf7 19. Qf3+ Ke8 20. Qe4 Kf7 21. Qf3+ Ke8 22. Qe4 1/2-1/2

[Event "NED-ch U20 op"]
[Site "Borne"]
[Date "2019.08.06"]
[Round "2"]
[White "Lettko, Michael"]
[Black "Hempler, Poul"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1386"]
[BlackElo "1809"]
[PlyCount "142"]
[EventDate "2019.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 6. c3 Nc6 7. Be3 Qb6 8. Qb3 Qxb3 9. axb3 cxd4 10. cxd4 Nb4 11. Bb5+ Kd8 12. 0-0 Ne7 13. Nc3 Nec6 14. Na4 Be7 15. Nc5 Bxc5 16. dxc5 Bd3 17. Bxc6 Nxc6 18. Rfc1 h6 19. Rc3 Be2 20. Nd4 Bh5 21. f4 Kd7 22. Ra4 a6 23. Rc1 Rhc8 24. Raa1 f6 25. Nxc6 Rxc6 26. Bd4 Rf8 27. g3 fxe5 28. Bxe5 Rf7 29. h4 g5 30. hxg5 hxg5 31. b4 Rc8 32. Kf2 gxf4 33. gxf4 Kc6 34. Ke3 Rg8 35. Rg1 Rg4 36. Rxg4 Bxg4 37. Rg1 Bf5 38. Rg7 Rxg7 39. Bxg7 Kb5 40. Bc3 Kc4 41. Kd2 d4 42. b3+ Kxb3 43. Bxd4 Kxb4 44. Kc1 Kb3 45. c6 bxc6 46. Bb6 Kc3 47. Ba5+ Kd3 48. Kb2 Ke3 49. Bc7 Kd4 50. Bb6+ c5 51. Kb3 Bd3 52. Kb2 Kd5 53. Kc3 Kc6 54. Bd8 c4 55. Kb4 Kd5 56. Kc3 Kc5 57. Ba5 Kb5 58. Bb4 Bb1 59. Be7 Ba2 60. Kb2 Bb3 61. Bf8 Kc6 62. Kc3 Kd5 63. Bb4 Ke4 64. Bd6 a5 65. Be5 a4 66. Kb2 Kd3 67. Bf6 Bd1 68. Kc1 c3 69. Kxd1 a3 70. Kc1 a2 71. Bxc3 Kxc3 0-1

