[Event "Schaffhausen op"]
[Site "Schaffhausen"]
[Date "2024.01.14"]
[Round "5"]
[White "Cardoso Rodrigues, Michael"]
[Black "Mattes, Sam"]
[Result "1-0"]
[ECO "C28"]
[WhiteElo "1645"]
[BlackElo "1468"]
[PlyCount "89"]
[EventDate "2024.01.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "SUI"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 4. d3 Na5 5. Bb3 Bc5 6. f4 d6 7. Na4 Bb6 8. Nf3 Qe7 9. fxe5 dxe5 10. c3 Nxb3 11. axb3 Bg4 12. Nxb6 cxb6 13. 0-0 0-0 14. h3 Bh5 15. Bg5 h6 16. Bh4 g5 17. Bg3 g4 18. hxg4 Bxg4 19. Qd2 Nh5 20. Bh2 Bxf3 21. Rxf3 Qe6 22. Rf5 Qg6 23. Bxe5 f6 24. Bh2 Kh7 25. Raf1 Rg8 26. Qe2 Ng3 27. Bxg3 Qxg3 28. Rxf6 Rg4 29. Qf3 Qxf3 30. R1xf3 Rag8 31. Rf7+ Kh8 32. Rf2 R8g7 33. e5 Rxg2+ 34. Rxg2 Rxf7 35. d4 Re7 36. b4 b5 37. Kf2 b6 38. Ke3 Rd7 39. Ke4 Kh7 40. e6 Re7 41. d5 h5 42. Kf5 Re8 43. d6 Rf8+ 44. Ke5 Rf1 45. e7 1-0

[Event "Schaffhausen op"]
[Site "Schaffhausen"]
[Date "2024.01.14"]
[Round "4"]
[White "Mattes, Sam"]
[Black "Pan, Yun"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "1468"]
[BlackElo "1776"]
[PlyCount "54"]
[EventDate "2024.01.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "SUI"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. d3 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. g3 Be7 7. Bg2 Be6 8. 0-0 Qd7 9. Qc2 0-0-0 10. a3 f6 11. Bd2 h5 12. b4 h4 13. Nxh4 Nd4 14. Qd1 g5 15. Ng6 Nxc3 16. Bxc3 Rh6 17. Nxe7+ Qxe7 18. Bxd4 exd4 19. Qa4 Kb8 20. Qb5 Bc8 21. Rfe1 Rdh8 22. Qc5 Qh7 23. Qxd4 Rxh2 24. Qe4 Rh1+ 25. Bxh1 Qh2+ 26. Kf1 Bh3+ 27. Bg2 Qh1# 0-1

[Event "Schaffhausen op"]
[Site "Schaffhausen"]
[Date "2024.01.13"]
[Round "3"]
[White "Matei, Robert"]
[Black "Mattes, Sam"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "1816"]
[BlackElo "1468"]
[PlyCount "71"]
[EventDate "2024.01.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "SUI"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nc6 3. Bg2 b6 4. Nc3 Bb7 5. Nf3 Nf6 6. d3 d5 7. cxd5 Nxd5 8. 0-0 e5 9. Ne1 Nf6 10. b3 a6 11. Bb2 Bd6 12. Nc2 Qc7 13. Ne3 Nd4 14. Ne4 Nxe4 15. dxe4 g5 16. Nd5 Bxd5 17. exd5 h5 18. e3 Nf5 19. Qd3 Qd7 20. f4 gxf4 21. exf4 c4 22. Qe4 Bc5+ 23. Kh1 f6 24. fxe5 Ne3 25. Rxf6 Ng4 26. Re6+ Kd8 27. Bd4 Qf7 28. Bxc5 bxc5 29. Qf3 Nf2+ 30. Kg1 Nh3+ 31. Kf1 Qxf3+ 32. Bxf3 Rf8 33. Ke2 Ng5 34. Rd6+ Ke7 35. Rf6 cxb3 36. d6+ 1-0

[Event "Schaffhausen op"]
[Site "Schaffhausen"]
[Date "2024.01.12"]
[Round "1"]
[White "Dikich, Andreas"]
[Black "Mattes, Sam"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1861"]
[BlackElo "1468"]
[PlyCount "78"]
[EventDate "2024.01.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "SUI"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. c4 e6 5. Nc3 Bd6 6. Bg3 Ne4 7. Nxe4 Bxe4 8. c5 Bxg3 9. hxg3 c6 10. Nf3 Bxf3 11. gxf3 Qa5+ 12. Qd2 Qxd2+ 13. Kxd2 Nd7 14. Bd3 h6 15. f4 b6 16. cxb6 axb6 17. Rhc1 c5 18. Bb5 Rc8 19. Rc3 Ke7 20. Rac1 Nf6 21. Bd3 c4 22. b3 b5 23. bxc4 dxc4 24. Bb1 Nd5 25. R3c2 h5 26. e4 Nf6 27. f3 h4 28. g4 Ra8 29. Ke3 Ra3+ 30. Rc3 Rxc3+ 31. Rxc3 Nd7 32. Rc1 Nb6 33. g5 Na4 34. Bc2 Nc3 35. Kd2 Nxa2 36. Rh1 b4 37. Bb1 b3 38. Bxa2 bxa2 39. Ra1 h3 0-1

