[Event "EU-ch Amateur Online Final 1400/1700"]
[Site "Tornelo INT"]
[Date "2021.04.18"]
[Round "1"]
[White "Valkenburg, Max"]
[Black "Lafkidis, Apostolos"]
[Result "0-1"]
[ECO "B76"]
[BlackElo "1483"]
[PlyCount "46"]
[EventDate "2021.04.18"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 d5 10. exd5 Nxd5 11. Nxd5 Qxd5 12. Nxc6 Qxc6 13. Bh6 Be6 14. a3 Rad8 15. Qxd8 Bxh6+ 16. Kb1 Rxd8 17. Rxd8+ Kg7 18. Bd3 Qb6 19. Re8 Bg5 20. h4 Bf6 21. b3 Qd4 22. Kc1 Qa1+ 23. Kd2 Qxh1 0-1

[Event "EU-ch Amateur Online 1400/1700"]
[Site "Tornelo INT"]
[Date "2021.04.17"]
[Round "6"]
[White "Kalogridis, Themistoklis"]
[Black "Valkenburg, Max"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1409"]
[PlyCount "99"]
[EventDate "2021.04.17"]
[EventType "swiss (rapid)"]
[EventRounds "8"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 c5 7. d5 Nbd7 8. Bg5 a6 9. Nd2 h6 10. Be3 Kh7 11. 0-0 e6 12. Qc2 exd5 13. exd5 Ne5 14. Bf4 Bf5 15. Qb3 Qe7 16. Nf3 Nxf3+ 17. Bxf3 g5 18. Bg3 Rae8 19. Qb6 Rd8 20. Rfe1 Qd7 21. Qb3 h5 22. h3 h4 23. Bh2 g4 24. hxg4 Bxg4 25. Be4+ Nxe4 26. Nxe4 Rh8 27. Nxd6 h3 28. Qxb7 hxg2 29. Qxd7 Rxd7 30. Kxg2 Kg6 31. Ne4 Rdd8 32. Re3 f5 33. Nxc5 Rxh2+ 34. Kxh2 f4 35. Re6+ Bxe6 36. Nxe6 Rh8+ 37. Kg2 Bxb2 38. Rb1 Be5 39. Rb6 Kf5 40. Nc5 Kg4 41. Rg6+ Kf5 42. Rxa6 Rg8+ 43. Kf3 Rh8 44. d6 Rh3+ 45. Ke2 f3+ 46. Kd3 Rh4 47. d7 Rd4+ 48. Ke3 Bf6 49. Rb6 Rd1 50. Rb8 1-0

[Event "EU-ch Amateur Online 1400/1700"]
[Site "Tornelo INT"]
[Date "2021.04.17"]
[Round "4"]
[White "Kyparissopoulos, Spyridon"]
[Black "Valkenburg, Max"]
[Result "1-0"]
[ECO "C63"]
[WhiteElo "1432"]
[PlyCount "51"]
[EventDate "2021.04.17"]
[EventType "swiss (rapid)"]
[EventRounds "8"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. exf5 Nf6 5. 0-0 d6 6. d4 e4 7. Re1 d5 8. Ne5 Bd7 9. Bg5 Nxe5 10. dxe5 Bxb5 11. exf6 gxf6 12. Qh5+ Ke7 13. Bh4 Be8 14. Qe2 Kd7 15. Nc3 c6 16. Rad1 Kc7 17. Nxe4 Bd7 18. Nxf6 Qc8 19. Bg3+ Kb6 20. Qe3+ Bc5 21. Qb3+ Ka6 22. Qa4+ Kb6 23. b4 Bxf2+ 24. Kxf2 c5 25. Qa5+ Kc6 26. Qxc5# 1-0

