[Event "IECG QB.2007.0.00087 email"]
[Site "IECG email"]
[Date "2007.05.21"]
[Round "1.3"]
[White "Broniek, Mariusz Maciej"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "B99"]
[WhiteElo "1879"]
[BlackElo "1800"]
[PlyCount "83"]
[EventDate "2007.05.21"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nbd7 10. g4 b5 11. Bxf6 Nxf6 12. g5 Nd7 13. f5 Ne5 14. Qg3 0-0 15. f6 Bd8 16. a3 Rb8 17. Be2 b4 18. axb4 Rxb4 19. Nb3 Bb7 20. Rd4 Rxd4 21. Nxd4 Qb8 22. Nb3 a5 23. Rd1 a4 24. Nxa4 Bxe4 25. Nc3 Bg6 26. h4 d5 27. h5 Bf5 28. Nd4 Bc7 29. Qh4 Nc4 30. Bxc4 dxc4 31. Nxf5 exf5 32. Nd5 Be5 33. c3 Kh8 34. fxg7+ Kxg7 35. h6+ Kh8 36. Qxc4 Qa7 37. Kc2 Qb7 38. Re1 Qb8 39. Ne7 Qd6 40. Nxf5 Qc7 41. Qe4 f6 42. g6 1-0

[Event "IECG QB.2007.0.00087 email"]
[Site "IECG email"]
[Date "2007.05.21"]
[Round "2.3"]
[White "Mason, David"]
[Black "Broniek, Mariusz Maciej"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "1800"]
[BlackElo "1879"]
[PlyCount "67"]
[EventDate "2007.05.21"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. h3 a6 7. Bb3 h6 8. 0-0 0-0 9. Re1 Re8 10. Nbd2 Nh5 11. d4 exd4 12. cxd4 Ba7 13. Nc4 Nf6 14. d5 Ne7 15. Bc2 b5 16. Na5 c5 17. Nb3 Ng6 18. Nbd2 c4 19. Nf1 Bd7 20. Ng3 Bc5 21. Be3 Qb6 22. a3 Ne5 23. Nxe5 Rxe5 24. Qf3 Bxe3 25. Rxe3 Qd4 26. Rc3 Rae8 27. Rd1 Qa7 28. Kh1 Qb7 29. Re3 a5 30. Qe2 Qb6 31. Re1 Qc5 32. Rc1 Qd4 33. Bb1 Qb6 34. Kg1 1/2-1/2

[Event "IECG QB.2007.0.00087 email"]
[Site "IECG email"]
[Date "2007.05.21"]
[Round "1.2"]
[White "Mason, David"]
[Black "Reboredo, Daniel"]
[Result "0-1"]
[ECO "C24"]
[WhiteElo "1800"]
[BlackElo "1817"]
[PlyCount "26"]
[EventDate "2007.05.21"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 d5 5. exd5 Nxd5 6. 0-0 Be7 7. Re1 f6 8. d4 Bg4 9. dxe5 Ndb4 10. Qxd8+ Rxd8 11. Bb3 Bxf3 12. gxf3 Nxe5 13. Kg2 c6 0-1

[Event "IECG QB.2007.0.00087 email"]
[Site "IECG email"]
[Date "2007.05.21"]
[Round "2.2"]
[White "Reboredo, Daniel"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1817"]
[BlackElo "1800"]
[PlyCount "27"]
[EventDate "2007.05.21"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. e5 e6 4. Bb5+ Bd7 5. Bxd7+ Nxd7 6. d4 cxd4 7. exd6 Bxd6 8. Qxd4 Ne5 9. Nxe5 Qa5+ 10. Bd2 Qxe5+ 11. Qxe5 Bxe5 12. Bc3 Bf6 13. Ke2 0-0-0 14. Bxf6 1-0

[Event "IECG CB.2007.0.00171 email"]
[Site "IECG email"]
[Date "2007.05.20"]
[Round "?"]
[White "Mason, David"]
[Black "Bonoldi, Fabio"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1800"]
[BlackElo "1942"]
[PlyCount "26"]
[EventDate "2007.05.20"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Bd3 g6 4. Nf3 Bg7 5. 0-0 0-0 6. h3 Nc6 7. c3 e5 8. Nbd2 Re8 9. d5 Ne7 10. Nb3 c6 11. c4 Bd7 12. Bg5 Qc7 13. Qd2 a5 0-1

[Event "IECG CB.2007.0.00171 email"]
[Site "IECG email"]
[Date "2007.05.20"]
[Round "?"]
[White "Mason, David"]
[Black "Broniek, Mariusz Maciej"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1800"]
[BlackElo "1879"]
[PlyCount "70"]
[EventDate "2007.05.20"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. Be3 Be6 10. f4 exf4 11. Rxf4 Nc6 12. Nd5 Ne5 13. Nxe7+ Qxe7 14. Nd2 Rac8 15. c3 Rfd8 16. Bd4 Nfd7 17. Nf1 Nc5 18. Ng3 g6 19. b4 Ncd7 20. a4 a5 21. bxa5 Nc5 22. Qf1 Ra8 23. Bxc5 dxc5 24. a6 bxa6 25. Bxa6 c4 26. Bb5 Qa7+ 27. Kh1 Rd2 28. Ne2 Nd3 29. Nd4 Nxf4 30. Qxf4 Rxd4 31. cxd4 Qxd4 32. Rc1 c3 33. Qf3 Rc8 34. Qd3 Qb4 35. e5 c2 0-1

[Event "IECG CB.2007.0.00171 email"]
[Site "IECG email"]
[Date "2007.05.20"]
[Round "?"]
[White "Mason, David"]
[Black "Pagano, Marcelo"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1800"]
[BlackElo "1915"]
[PlyCount "60"]
[EventDate "2007.05.20"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Be2 0-0 5. 0-0 Nc6 6. Nd5 Bc5 7. d3 h6 8. c3 a5 9. Nxe5 Nxe5 10. d4 Nxd5 11. exd5 Bd6 12. dxe5 Bxe5 13. Re1 Re8 14. Bd3 d6 15. Be3 a4 16. a3 Bd7 17. Bc2 c6 18. f4 Bf6 19. Qd3 g6 20. dxc6 Bxc6 21. Bf2 Qd7 22. Rad1 Qg4 23. Bg3 Kg7 24. h3 Qh5 25. f5 Qxf5 26. Qxf5 gxf5 27. Bxf5 Ra5 28. Rxe8 Bxe8 29. Bc2 Be5 30. Bf2 Bc6 0-1

[Event "IECG CB.2007.0.00171 email"]
[Site "IECG email"]
[Date "2007.05.20"]
[Round "?"]
[White "Richkov, Sergei"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "E20"]
[WhiteElo "1859"]
[BlackElo "1800"]
[PlyCount "65"]
[EventDate "2007.05.20"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Be7 4. Nc3 0-0 5. e4 d5 6. Bd3 dxe4 7. Nxe4 Nc6 8. Ng3 b6 9. a3 Bb7 10. 0-0 h6 11. Be3 Bd6 12. Qe2 Re8 13. Rad1 Ne7 14. c5 Bxf3 15. Qxf3 Bxg3 16. Qxg3 Kh8 17. Rc1 Ned5 18. Rfd1 c6 19. cxb6 Qxb6 20. Rc2 Rac8 21. b4 a5 22. bxa5 Qxa5 23. Bc1 Qa4 24. Qe5 c5 25. dxc5 Rxc5 26. Rdd2 Rec8 27. Rxc5 Rxc5 28. Qb8+ Ng8 29. Bb2 Nf4 30. h3 Rg5 31. g3 Nxd3 32. Rxd3 Kh7 33. Qb7 1-0

[Event "IECG CB.2007.0.00171 email"]
[Site "IECG email"]
[Date "2007.05.20"]
[Round "?"]
[White "Rochow, Stephan"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "A02"]
[WhiteElo "1800"]
[BlackElo "1800"]
[PlyCount "85"]
[EventDate "2007.05.20"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. f4 Nf6 2. b3 e6 3. Bb2 d5 4. Nf3 Bc5 5. e3 0-0 6. Be2 Nc6 7. 0-0 d4 8. b4 Bxb4 9. Nxd4 a6 10. Nxc6 bxc6 11. Nc3 Nd5 12. Ne4 Be7 13. c4 Nb6 14. d3 Rb8 15. Rb1 f5 16. Nf2 Bb7 17. a4 c5 18. a5 Nd7 19. Bf3 c6 20. Qa4 Qc7 21. Qa1 g6 22. g3 Ba8 23. Bc3 Bf6 24. Rxb8 Qxb8 25. Bxf6 Nxf6 26. Rb1 Qd6 27. d4 cxd4 28. exd4 Nd7 29. c5 Qc7 30. Qc3 Re8 31. Nd3 h6 32. Ne5 Nxe5 33. fxe5 Bb7 34. Rb6 Kg7 35. Be2 Qc8 36. Bc4 Rd8 37. Qb3 Ba8 38. Bxe6 Qc7 39. Rxa6 h5 40. Qb6 Qb8 41. Ra7+ Kh6 42. Bd7 h4 43. e6 1-0

[Event "FICGS rapid B 000052 email"]
[Site "FICGS email"]
[Date "2007.05.17"]
[Round "1"]
[White "D Ettorre, Rodolfo"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "1400"]
[BlackElo "1430"]
[PlyCount "49"]
[EventDate "2007.??.??"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 dxc4 3. e3 b5 4. a4 c6 5. axb5 cxb5 6. Nd4 Qb6 7. Nc3 Bd7 8. Qf3 Bc6 9. Nxc6 Nxc6 10. b3 Rc8 11. bxc4 bxc4 12. Bxc4 e6 13. Ra6 Ne5 14. Qe4 Qc7 15. Bb5+ Nd7 16. Qa4 Bc5 17. Rc6 Qd8 18. Ne4 Rxc6 19. Bxc6 Be7 20. Bb2 Ngf6 21. Nxf6+ gxf6 22. Qxa7 Rg8 23. Ke2 Rg5 24. Rc1 Kf8 25. Bxd7 1-0

[Event "FICGS rapid B 000052 email"]
[Site "FICGS email"]
[Date "2007.05.17"]
[Round "1"]
[White "Mason, David"]
[Black "Livenais, Jean Rene"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1430"]
[BlackElo "1500"]
[PlyCount "54"]
[EventDate "2007.??.??"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. c3 Nc6 7. Nf3 cxd4 8. cxd4 Nge7 9. 0-0 Nf5 10. Nc3 Be7 11. h3 Rc8 12. a3 0-0 13. Be3 Na5 14. g4 Nxe3 15. fxe3 Nc4 16. Qe2 b5 17. g5 Nxa3 18. Nxd5 exd5 19. bxa3 Qxh3 20. Rf2 a6 21. Rg2 Rc3 22. Rh2 Qf5 23. a4 bxa4 24. Rxa4 Rc1+ 25. Ne1 Rb8 26. Rxa6 Rbb1 27. Ra8+ Bf8 0-1

[Event "FICGS rapid B 000052 email"]
[Site "FICGS email"]
[Date "2007.05.17"]
[Round "1"]
[White "Mason, David"]
[Black "Marques, Joao"]
[Result "1-0"]
[ECO "B86"]
[WhiteElo "1430"]
[BlackElo "1504"]
[PlyCount "49"]
[EventDate "2007.??.??"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Bd7 7. 0-0 a6 8. h3 Nc6 9. Re1 Be7 10. Nxc6 Bxc6 11. Bf4 e5 12. Bg3 0-0 13. Kh1 b5 14. Bd3 Qc7 15. f4 Rfd8 16. Qf3 Nd7 17. Rf1 Bf6 18. Rae1 Rf8 19. Nd5 Bxd5 20. exd5 Rfe8 21. Qe4 Nc5 22. Qxh7+ Kf8 23. fxe5 dxe5 24. Bg6 Ke7 25. Rxf6 1-0

[Event "FICGS rapid B 000052 email"]
[Site "FICGS email"]
[Date "2007.05.17"]
[Round "1"]
[White "Mason, David"]
[Black "Pech, Jaroslav Sr"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1430"]
[BlackElo "1433"]
[PlyCount "40"]
[EventDate "2007.??.??"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. d5 Nbd7 5. Be3 Be7 6. Ne2 Ng4 7. 0-0 Nxe3 8. fxe3 Bh4 9. c4 Qg5 10. Rf3 0-0 11. Nbc3 Nc5 12. Bc2 Bg4 13. Qf1 a5 14. g3 Bxf3 15. Qxf3 Qg6 16. Kh1 Bg5 17. h4 Qh6 18. Nd1 Kh8 19. Kg2 Bd8 20. Nf2 Ra6 0-1

[Event "FICGS rapid B 000052 email"]
[Site "FICGS email"]
[Date "2007.05.17"]
[Round "1"]
[White "Phillip, Lennox"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "1700"]
[BlackElo "1430"]
[PlyCount "75"]
[EventDate "2007.??.??"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 Bb4+ 5. Bd2 Bd6 6. c5 Be7 7. Nc3 0-0 8. Ne5 c6 9. Bd3 Qc7 10. 0-0 Bxc5 11. Nxf7 Qxf7 12. dxc5 e5 13. h3 e4 14. Be2 Qg6 15. Kh2 Nbd7 16. b4 Ne5 17. f4 Nf7 18. Be1 Nh6 19. Bh4 Ne8 20. Bh5 Qe6 21. Bxe8 Qxe8 22. g4 b6 23. Qd4 bxc5 24. Qxc5 Qd7 25. Rg1 a5 26. b5 d4 27. bxc6 Qa7 28. Qd5+ Kh8 29. exd4 Ba6 30. Nxe4 Rae8 31. Nd6 Rb8 32. Rab1 Rxf4 33. Qc5 Qc7 34. Rxb8+ Qxb8 35. c7 Qf8 36. Rg2 Bc8 37. Nxc8 Qxc8 38. Rb2 1-0

[Event "FICGS rapid B 000052 email"]
[Site "FICGS email"]
[Date "2007.05.17"]
[Round "1"]
[White "Veeraiah, Karuppaiah"]
[Black "Mason, David"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1400"]
[BlackElo "1430"]
[PlyCount "64"]
[EventDate "2007.??.??"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. Qxd4 Nf6 4. e5 Nc6 5. Qa4 Nxe5 6. Bf4 Nc6 7. Nc3 e5 8. Be3 Be7 9. Bd3 d5 10. 0-0-0 0-0 11. Qh4 e4 12. Bb5 a6 13. Bxc6 bxc6 14. f3 c5 15. Nxd5 Nxd5 16. Qxe4 Bb7 17. Bd2 Qc7 18. Qe1 Nb4 19. Kb1 Rac8 20. Nh3 Bf6 21. Bc3 Rfe8 22. Qd2 Rcd8 23. Qf4 Rxd1+ 24. Rxd1 Qxf4 25. Nxf4 Bxc3 26. bxc3 Nc6 27. Rd7 Ba8 28. Nd3 c4 29. Nc5 a5 30. Rc7 g5 31. Nd7 Kg7 32. Nb6 Rb8 0-1

[Event "FICGS class C 000037 email"]
[Site "FICGS email"]
[Date "2007.03.31"]
[Round "1"]
[White "Mason, David"]
[Black "Behrmann, Klaus"]
[Result "0-1"]
[ECO "B17"]
[WhiteElo "1700"]
[BlackElo "1651"]
[PlyCount "46"]
[EventDate "2007.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. Bc4 e6 6. d4 Ngf6 7. Ng3 Bd6 8. 0-0 0-0 9. Qe2 a6 10. Bg5 h6 11. Bxf6 Nxf6 12. Ne4 Nxe4 13. Qxe4 Qb6 14. b3 c5 15. Bd3 g6 16. Nh4 Kg7 17. Nxg6 f5 18. Qh4 Kxg6 19. dxc5 Qxc5 20. g4 Rg8 21. Rae1 Kh7 22. Kh1 b5 23. Rg1 Bb7+ 0-1

[Event "FICGS class C 000037 email"]
[Site "FICGS email"]
[Date "2007.03.31"]
[Round "1"]
[White "Mason, David"]
[Black "Flores, Luis"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1700"]
[BlackElo "1700"]
[PlyCount "72"]
[EventDate "2007.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. 0-0 Be6 9. Bg5 Nbd7 10. Bxf6 Nxf6 11. Nd5 Nxe4 12. Bf3 Ng5 13. Re1 Nxf3+ 14. Qxf3 Rc8 15. Qd3 Bxd5 16. Qxd5 Rxc2 17. Rad1 Qb6 18. Rd2 Rc7 19. h3 0-0 20. Nc1 Bg5 21. Rdd1 Qxb2 22. Nd3 Qa3 23. g3 Rfc8 24. f4 Bf6 25. Rd2 exf4 26. gxf4 Bc3 27. Qe4 g6 28. Rc2 Bxe1 29. Rxc7 Rxc7 30. Nxe1 Qg3+ 31. Kf1 Qxh3+ 32. Kf2 Qh4+ 33. Kf1 Re7 34. Qb1 Qxf4+ 35. Kg1 Qe3+ 36. Kf1 Qe2+ 0-1

[Event "FICGS class C 000037 email"]
[Site "FICGS email"]
[Date "2007.03.31"]
[Round "1"]
[White "Mason, David"]
[Black "Wyngaarden, Martin"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1700"]
[BlackElo "1700"]
[PlyCount "46"]
[EventDate "2007.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. Bg5 Be6 10. Bxf6 Bxf6 11. Nd5 Bg5 12. Nd2 Bxd5 13. exd5 Nd7 14. Nf3 e4 15. Nxg5 Qxg5 16. Qd4 f5 17. f4 exf3 18. Bxf3 Rac8 19. c4 Ne5 20. Be2 b5 21. cxb5 Rc2 22. Rf2 Rxe2 23. Raf1 Nf3+ 0-1

[Event "FICGS class C 000037 email"]
[Site "FICGS email"]
[Date "2007.03.31"]
[Round "1"]
[White "Smith, Dave"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1700"]
[BlackElo "1700"]
[PlyCount "65"]
[EventDate "2007.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Nge2 Nf6 4. Nf4 e6 5. Bc4 a6 6. a3 b5 7. Ba2 Bb7 8. d3 Be7 9. Be3 0-0 10. g4 Nc6 11. g5 Nd7 12. Nxe6 fxe6 13. Bxe6+ Kh8 14. f4 Nd4 15. Bd5 Bxd5 16. Nxd5 Rc8 17. 0-0 Ne6 18. Bd2 Nb6 19. Ba5 Rb8 20. Kh1 Rb7 21. g6 h6 22. c3 Bf6 23. f5 Ng5 24. Nxb6 Rxb6 25. Qg4 Qb8 26. Bxb6 Qxb6 27. h4 Nxe4 28. Qxe4 a5 29. h5 b4 30. axb4 cxb4 31. cxb4 axb4 32. Ra8 Rd8 33. Qe8+ 1-0

[Event "FICGS class C 000037 email"]
[Site "FICGS email"]
[Date "2007.03.31"]
[Round "1"]
[White "Turakainen, Pekka I"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "1700"]
[BlackElo "1700"]
[PlyCount "47"]
[EventDate "2007.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 a6 5. cxd5 exd5 6. g3 Bd6 7. Bg2 0-0 8. 0-0 h6 9. Qb3 c6 10. Nd2 Re8 11. e4 dxe4 12. Ndxe4 Nxe4 13. Nxe4 Bc7 14. Re1 Nd7 15. Bd2 Nb6 16. Nc5 Nd7 17. Rxe8+ Qxe8 18. Nxb7 Nb6 19. Re1 Be6 20. Qc2 Qc8 21. Qxc6 Rb8 22. Nc5 Bd7 23. Nxd7 Nxd7 24. Re7 1-0

[Event "FICGS rapid B 000044 email"]
[Site "FICGS email"]
[Date "2007.03.27"]
[Round "1"]
[White "Mason, David"]
[Black "Lorena, June"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1700"]
[BlackElo "1400"]
[PlyCount "31"]
[EventDate "2007.??.??"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 h6 4. c3 d6 5. h3 Nf6 6. d3 Na5 7. Bb5+ c6 8. Ba4 Be7 9. Bc2 0-0 10. b4 d5 11. bxa5 dxe4 12. Nxe5 exd3 13. Qxd3 Bc5 14. 0-0 Qc7 15. Bf4 Nh5 16. Qh7# 1-0

[Event "FICGS rapid B 000044 email"]
[Site "FICGS email"]
[Date "2007.03.27"]
[Round "1"]
[White "Mason, David"]
[Black "Rundgren, Anders"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1700"]
[BlackElo "1400"]
[PlyCount "19"]
[EventDate "2007.??.??"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. exd5 cxd5 5. d4 Nc6 6. Be2 e6 7. 0-0 Nf6 8. Be3 Be7 9. h3 Bh5 10. Re1 1-0

[Event "FICGS rapid B 000044 email"]
[Site "FICGS email"]
[Date "2007.03.27"]
[Round "1"]
[White "Mason, David"]
[Black "Sharland, Michael"]
[Result "0-1"]
[ECO "B84"]
[WhiteElo "1700"]
[BlackElo "1505"]
[PlyCount "46"]
[EventDate "2007.??.??"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. 0-0 Be7 8. f4 0-0 9. Kh1 Qc7 10. Nf3 Nbd7 11. Be3 b5 12. f5 b4 13. fxe6 bxc3 14. exd7 Bxd7 15. bxc3 Nxe4 16. c4 Nc3 17. Bd3 Nxd1 18. Raxd1 Be6 19. Nd2 Qa5 20. Nb3 Qa3 21. Rf2 Rac8 22. Nd4 Bxc4 23. Nf5 Rfe8 0-1

[Event "FICGS rapid B 000044 email"]
[Site "FICGS email"]
[Date "2007.03.27"]
[Round "1"]
[White "Miranda, Marcus"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "1434"]
[BlackElo "1700"]
[PlyCount "31"]
[EventDate "2007.??.??"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. f4 h6 8. Bxf6 Nxf6 9. e5 dxe5 10. fxe5 Ng4 11. e6 Bxe6 12. Nxe6 Qxd1+ 13. Rxd1 fxe6 14. Rd4 Nf6 15. Bd3 Rd8 16. Bg6# 1-0

[Event "FICGS rapid B 000044 email"]
[Site "FICGS email"]
[Date "2007.03.27"]
[Round "1"]
[White "Podogov, Ilia"]
[Black "Mason, David"]
[Result "0-1"]
[ECO "B84"]
[WhiteElo "1400"]
[BlackElo "1700"]
[PlyCount "22"]
[EventDate "2007.??.??"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. 0-0 Be7 8. Be3 0-0 9. Qd2 b5 10. Bf3 Bb7 11. e5 Nd5 0-1

[Event "FICGS rapid B 000044 email"]
[Site "FICGS email"]
[Date "2007.03.27"]
[Round "1"]
[White "Wyngaarden, Martin"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "1700"]
[BlackElo "1700"]
[PlyCount "55"]
[EventDate "2007.??.??"]
[EventType "tourn (rapid)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 0-0 8. Nc3 d5 9. cxd5 exd5 10. Ne5 Re8 11. Rd1 c5 12. 0-0 cxd4 13. Qxd4 Qe7 14. Nxd5 Bxd5 15. Bxd5 Nxd5 16. Qxd5 Na6 17. Nc6 Qxe2 18. Nd8 Rc8 19. Qxf7+ Kh8 20. Qd5 h6 21. Nf7+ Kh7 22. Qf5+ Kg8 23. Nxh6+ gxh6 24. Qg6+ Kh8 25. Qxh6+ Kg8 26. Qg6+ Kf8 27. Qf6+ Kg8 28. Rd7 1-0

[Event "FICGS class C 000035 email"]
[Site "FICGS email"]
[Date "2007.03.21"]
[Round "1"]
[White "Mason, David"]
[Black "Behrmann, Klaus"]
[Result "0-1"]
[ECO "B17"]
[WhiteElo "1700"]
[BlackElo "1651"]
[PlyCount "72"]
[EventDate "2007.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. d4 e6 6. Bd3 Ngf6 7. Ng3 c5 8. 0-0 Bd6 9. dxc5 Bxg3 10. fxg3 Nxc5 11. Bb5+ Bd7 12. Bxd7+ Qxd7 13. Qe2 0-0 14. Bg5 Nce4 15. Rad1 Qc7 16. Bxf6 Nxf6 17. Ne1 Qb6+ 18. Kh1 Qxb2 19. Nd3 Qxa2 20. Ne5 h6 21. Rxf6 gxf6 22. Qg4+ Kh7 23. Nd7 Rfd8 24. Nxf6+ Kh8 25. Nh5 Rxd1+ 26. Qxd1 Qd5 27. Qa1+ e5 28. Qf1 Qe6 29. h3 a5 30. Nf6 a4 31. Ne4 a3 32. Qa1 a2 33. Nc3 f6 34. g4 e4 35. Nxe4 Qxe4 36. Qxf6+ Kg8 0-1

[Event "FICGS class C 000035 email"]
[Site "FICGS email"]
[Date "2007.03.21"]
[Round "1"]
[White "Mason, David"]
[Black "Pasiak, Adam"]
[Result "1-0"]
[ECO "B55"]
[WhiteElo "1700"]
[BlackElo "1700"]
[PlyCount "31"]
[EventDate "2007.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Bd3 cxd4 5. Nxd4 Nc6 6. Nxc6 bxc6 7. 0-0 g6 8. Re1 Bg7 9. Nd2 0-0 10. Nf3 Rb8 11. h3 Qc7 12. Rb1 Nd7 13. b3 Nc5 14. Bf4 e5 15. Be3 Nxd3 16. cxd3 1-0

[Event "FICGS class C 000035 email"]
[Site "FICGS email"]
[Date "2007.03.21"]
[Round "1"]
[White "Mason, David"]
[Black "Walker, John"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1700"]
[BlackElo "1700"]
[PlyCount "36"]
[EventDate "2007.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. c3 0-0 6. Bb3 h6 7. 0-0 d5 8. exd5 Nxd5 9. Re1 Bg4 10. h3 Bh5 11. Bc2 Re8 12. Na3 Bxa3 13. bxa3 Nxc3 14. Qd2 Nd5 15. Nh2 Nf4 16. Bb2 Qg5 17. Qxf4 exf4 18. f3 Qc5+ 0-1

[Event "FICGS class C 000035 email"]
[Site "FICGS email"]
[Date "2007.03.21"]
[Round "1"]
[White "Rotaru, Dan"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "1679"]
[BlackElo "1700"]
[PlyCount "57"]
[EventDate "2007.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Bxc3+ 5. Qxc3 0-0 6. Bg5 d5 7. Nf3 h6 8. Bxf6 Qxf6 9. e3 c6 10. Bd3 Re8 11. 0-0 Nd7 12. Ne5 Qe7 13. f4 Nf8 14. Rac1 f6 15. Nf3 a6 16. Rf2 Bd7 17. Qb3 Rab8 18. cxd5 exd5 19. e4 Be6 20. e5 f5 21. g3 Nh7 22. Nh4 g5 23. Nxf5 Bxf5 24. Bxf5 gxf4 25. Rxf4 Ng5 26. Rcf1 Rf8 27. Qd1 Rf7 28. Qh5 Kg7 29. Qg6+ 1-0

[Event "FICGS class C 000035 email"]
[Site "FICGS email"]
[Date "2007.03.21"]
[Round "1"]
[White "Wilson, Jaimie"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1672"]
[BlackElo "1700"]
[PlyCount "45"]
[EventDate "2007.??.??"]
[EventType "tourn (corr)"]
[EventRounds "4"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 e5 6. Nf3 exd4 7. Qxd4 Qxd4 8. Nxd4 Bb4+ 9. Bd2 Bxd2+ 10. Nxd2 Bd7 11. Bc4 Nf6 12. 0-0 0-0 13. N2f3 Nc6 14. Rad1 Nxd4 15. Nxd4 Bg4 16. f3 Bh5 17. Nf5 Bg6 18. Ne7+ Kh8 19. Nxg6+ fxg6 20. Rfe1 Rac8 21. b3 Rc7 22. Re6 Nh5 23. Red6 1-0

[Event "IECG CP.2002.P.00033 email"]
[Site "IECG email"]
[Date "2002.10.01"]
[Round "?"]
[White "Karsdorp, Ronald"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "1093"]
[BlackElo "800"]
[PlyCount "53"]
[EventDate "2002.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "TUN"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 Nc6 4. c4 d5 5. Nc3 b6 6. cxd5 exd5 7. Bb5 Bd7 8. Qa4 a5 9. Bxc6 Rb8 10. Ne5 Bd6 11. Bxd7+ Nxd7 12. Nc6 Qc8 13. Nxb8 Qxb8 14. Qc6 Qd8 15. Qxd5 0-0 16. Ne4 Nf6 17. Nxf6+ Qxf6 18. Bd2 Rc8 19. Rc1 g6 20. 0-0 c5 21. Bc3 Qe7 22. dxc5 Rxc5 23. Qa8+ Qf8 24. Qf3 Qh6 25. h3 Rh5 26. Qf6 Kf8 27. Qd8# 1-0

[Event "IECG CP.2002.P.00033 email"]
[Site "IECG email"]
[Date "2002.10.01"]
[Round "?"]
[White "Mason, David"]
[Black "Abdelmoumen, Ahmed"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "800"]
[BlackElo "2028"]
[PlyCount "42"]
[EventDate "2002.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "TUN"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. e3 c5 5. Nc3 0-0 6. dxc5 Na6 7. Na4 Ne4 8. Bd3 Qa5+ 9. Ke2 Naxc5 10. b3 Bxa1 11. Ba3 Nxa4 12. Bxe4 Nc3+ 13. Kd2 Nxd1+ 14. Kxd1 Qxa3 15. Nd2 Qxa2 16. Bb1 Qb2 17. Ke2 b5 18. c5 Bb7 19. Rd1 d6 20. f4 dxc5 21. Kf2 Rfd8 0-1

[Event "IECG CP.2002.P.00033 email"]
[Site "IECG email"]
[Date "2002.10.01"]
[Round "?"]
[White "Nicora, Paolo"]
[Black "Mason, David"]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "1950"]
[BlackElo "800"]
[PlyCount "26"]
[EventDate "2002.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "TUN"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bd6 4. e4 e5 5. c5 Be7 6. dxe5 Bxc5 7. exf6 Qxf6 8. Qf3 Qd6 9. Bf4 Qd4 10. Bxc7 0-0 11. Nge2 Qc4 12. Nd5 Nc6 13. Nec3 Qd4 0-1

[Event "IECG CP.2002.P.00033 email"]
[Site "IECG email"]
[Date "2002.10.01"]
[Round "?"]
[White "Woods, Richard"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "1524"]
[BlackElo "800"]
[PlyCount "37"]
[EventDate "2002.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "TUN"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 Bc5 5. 0-0 Ng4 6. d4 Bb6 7. Bf4 Nc6 8. c5 Ba5 9. a3 Qf6 10. b4 Nxb4 11. axb4 Bxb4 12. Qa4+ Bd7 13. Qxb4 b6 14. c6 Bxc6 15. Bg5 Qd8 16. Bxd8 Rxd8 17. Rxa7 g6 18. Rc1 Kd7 19. h3 1-0

[Event "CServe email"]
[Site "CServe email"]
[Date "1995.??.??"]
[Round "?"]
[White "Winegar, Matthew"]
[Black "Mason, David"]
[Result "0-1"]
[ECO "D53"]
[PlyCount "50"]
[EventDate "1995.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "E-Mail 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Be7 6. e3 h6 7. Bh4 0-0 8. Bd3 c5 9. cxd5 cxd4 10. Nxd4 Nxd5 11. Bxe7 Qxe7 12. Nxd5 exd5 13. 0-0 Nd7 14. Qg4 Ne5 15. Nf5 Qg5 16. Qxg5 hxg5 17. Ne7+ Kh8 18. f4 Nxd3 19. Rad1 Nxb2 20. Rxd5 Re8 21. Nxc8 Raxc8 22. Rb1 Rc2 23. fxg5 Rxe3 24. Rf1 Ree2 25. h4 Rxg2+ 0-1

[Event "East Detroit ch-MI M/X"]
[Site "Detroit East"]
[Date "1987.??.??"]
[Round "3"]
[White "Mason, David"]
[Black "Kitts, Gary"]
[Result "0-1"]
[ECO "E72"]
[PlyCount "104"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. e4 Nc6 7. Nge2 e5 8. d5 Ne7 9. 0-0 Nh5 10. Be3 f5 11. Qd2 b6 12. Rac1 Ba6 13. Nb5 fxe4 14. Bxe4 Nf6 15. Nec3 Bc8 16. Bg2 a6 17. Na3 Nf5 18. f4 Ng4 19. Nc2 Ngxe3 20. Nxe3 exf4 21. Nxf5 Bxf5 22. gxf4 Qf6 23. b3 Rae8 24. Ne2 Qb2 25. Qxb2 Bxb2 26. Rce1 Bd3 27. Bf3 Bf6 28. Bg4 Bh4 29. Be6+ Kg7 30. Ng3 Bxf1 31. Rxf1 Bxg3 32. hxg3 c5 33. Kg2 Re7 34. Rf2 b5 35. Rb2 Rb8 36. cxb5 axb5 37. b4 c4 38. Kf3 Ra8 39. Ke4 Rea7 40. Kd4 Rxa2 41. Rxa2 Rxa2 42. Bd7 Rd2+ 43. Kc3 Rd3+ 44. Kc2 Rxg3 45. Bxb5 Rb3 46. Bxc4 Rxb4 47. Kc3 Rxc4+ 48. Kxc4 Kf6 49. Kd4 Kf5 50. Ke3 h5 51. Kf3 h4 52. Ke3 Kg4 0-1

[Event "East Detroit ch-MI M/X"]
[Site "Detroit East"]
[Date "1987.??.??"]
[Round "1"]
[White "Mason, David"]
[Black "Noren, Kevin"]
[Result "0-1"]
[ECO "A97"]
[PlyCount "68"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 e6 2. g3 f5 3. Bg2 Nf6 4. Nf3 Be7 5. 0-0 0-0 6. Bg5 d6 7. c4 Qe8 8. Nc3 Qg6 9. e4 fxe4 10. Bxf6 exf3 11. Bxe7 fxg2 12. Bxf8 gxf1Q+ 13. Qxf1 Kxf8 14. Re1 Nc6 15. d5 Nd4 16. f4 exd5 17. Qf2 c5 18. Nxd5 Bg4 19. Re3 Re8 20. Rxe8+ Qxe8 21. Qe3 Qxe3+ 22. Nxe3 Bf3 23. Kf2 Bc6 24. g4 Ke7 25. h4 a6 26. h5 b5 27. cxb5 axb5 28. g5 Be4 29. Ng4 Bf3 30. Ne3 Bxh5 31. b4 Bf7 32. bxc5 dxc5 33. a3 Kd6 34. Nd1 Nc2 0-1

[Event "East Detroit ch-MI M/X"]
[Site "Detroit East"]
[Date "1987.??.??"]
[Round "2"]
[White "Thompson, Dean"]
[Black "Mason, David"]
[Result "1/2-1/2"]
[ECO "B11"]
[PlyCount "94"]
[EventDate "1987.??.??"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 d4 4. Ne2 c5 5. c3 Bg4 6. Ng3 Bxf3 7. Qxf3 Nc6 8. Bb5 e5 9. Bc4 Qf6 10. Qd1 g6 11. d3 Bg7 12. Qb3 Qe7 13. 0-0 Nf6 14. f4 0-0 15. f5 Na5 16. Qa4 Nxc4 17. Qxc4 Kh8 18. Bg5 Qd6 19. Rf3 Ng8 20. f6 Bxf6 21. Bxf6+ Nxf6 22. Raf1 Ng4 23. Rxf7 Ne3 24. Rxf8+ Rxf8 25. Rxf8+ Qxf8 26. Qe6 Nd1 27. Qxe5+ Kg8 28. Nh1 Qh6 29. Qb8+ Qf8 30. Qxb7 Qf4 31. Qc8+ Kg7 32. Qd7+ Kg8 33. h3 Qe3+ 34. Kh2 Qf4+ 35. Ng3 Ne3 36. cxd4 Qf2 37. Qe8+ Kg7 38. Qe7+ Kg8 39. Qe8+ Kg7 40. Qe7+ Kg8 41. Qd8+ Kg7 42. Qc7+ Kh6 43. Nf5+ gxf5 44. Qc6+ Kg5 45. e5 Nf1+ 46. Kh1 Ng3+ 47. Kh2 Nf1+ 1/2-1/2

[Event "Monroe ch-MI op"]
[Site "Monroe"]
[Date "1986.??.??"]
[Round "5"]
[White "Cooper, Thomas L"]
[Black "Mason, David"]
[Result "1/2-1/2"]
[ECO "A06"]
[PlyCount "74"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 d5 3. e3 c5 4. Bb2 e6 5. Ne5 a6 6. Be2 Bd6 7. f4 0-0 8. 0-0 Qc7 9. Bd3 Ne4 10. Nc3 f5 11. Bxe4 dxe4 12. Ne2 Nc6 13. Nxc6 Qxc6 14. Ng3 b5 15. Nh5 Rf7 16. g4 g6 17. Nf6+ Kf8 18. g5 Be7 19. Qe1 Bxf6 20. Bxf6 Raa7 21. Be5 Rad7 22. h4 Bb7 23. h5 gxh5 24. Rd1 Ke8 25. Qh4 Rf8 26. Bf6 Rg8 27. Qxh5+ Rf7 28. Rf2 Rg6 29. Kf1 b4 30. Ke1 Kd7 31. d3 Kc7 32. Be5+ Kb6 33. d4 c4 34. Qe2 c3 35. a4 a5 36. Qf1 Ba6 37. Qh1 Rd7 1/2-1/2

[Event "Dearborn ch-MI M/X"]
[Site "Dearborn"]
[Date "1986.??.??"]
[Round "3"]
[White "Kitts, Gary"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "D40"]
[PlyCount "115"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. b3 0-0 8. Bd3 Nc6 9. 0-0 Kh8 10. Bc2 b6 11. Bb2 Ba6 12. Nb5 dxc4 13. bxc4 Bxb5 14. cxb5 Nb4 15. Bb3 a6 16. bxa6 Rxa6 17. Qe2 Qa8 18. Ne5 Qe4 19. Qb5 Qb7 20. f4 Nfd5 21. a3 Ne3 22. Rf3 Nbd5 23. Qe2 Nf5 24. Nxf7+ Rxf7 25. Qxe6 Rf6 26. Qxd5 Qxd5 27. Bxd5 Rd6 28. Bc4 b5 29. Bxb5 Rab6 30. a4 Bf6 31. Kf1 g6 32. Rd3 Bxd4 33. Rxd4 Rxd4 34. Bxd4+ Nxd4 35. Rb1 Kg7 36. Kf2 Kf6 37. Ke3 Nf5+ 38. Kd3 Rd6+ 39. Kc4 Rd4+ 40. Kc5 Rxf4 41. a5 Nd4 42. Rf1 Rxf1 43. Bxf1 Nb3+ 44. Kb6 Nxa5 45. Kxa5 Kf5 46. Kb4 Kf4 47. Kc3 Ke3 48. Bb5 g5 49. Bc6 g4 50. Kc4 Kf2 51. Kd4 Kg1 52. Ke3 Kxh2 53. Kf4 h5 54. Kg5 Kg3 55. Kxh5 Kf4 56. Kh4 g3 57. Bf3 Kf5 58. Kxg3 1-0

[Event "Monroe ch-MI op"]
[Site "Monroe"]
[Date "1986.??.??"]
[Round "3"]
[White "Koster, Ed"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "B17"]
[PlyCount "49"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 Qc7 7. Bd3 g6 8. 0-0 Bg7 9. Re1 Nb6 10. Ne5 0-0 11. Qf3 Be6 12. Bf4 Qd8 13. Rad1 Qxd4 14. Bxg6 Qxb2 15. Bd3 Bd5 16. Qe3 Ne8 17. Nf5 Qb4 18. Rb1 Qa4 19. Qh3 Nf6 20. Nxe7+ Kh8 21. Bh6 Nc4 22. Qh4 Ne4 23. Bxg7+ Kxg7 24. Bxe4 Rh8 25. Nf5+ 1-0

[Event "Dearborn ch-MI M/X"]
[Site "Dearborn"]
[Date "1986.??.??"]
[Round "4"]
[White "Lang, J2222"]
[Black "Mason, David"]
[Result "0-1"]
[ECO "B10"]
[PlyCount "70"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. f4 d5 3. e5 d4 4. Bc4 e6 5. Qh5 Qc7 6. Nf3 b5 7. Bd3 g6 8. Qh4 Be7 9. Qf2 Bb7 10. Qxd4 a6 11. Be4 f5 12. Bd3 c5 13. Qf2 c4 14. Be2 Be4 15. Bd1 Nh6 16. h3 Nd7 17. a3 Nc5 18. Nc3 Rd8 19. 0-0 0-0 20. Kh2 Nf7 21. Qg3 Kg7 22. Ne1 Rh8 23. Bf3 h5 24. Bxe4 fxe4 25. Qe3 Qc6 26. Rb1 Nh6 27. b4 cxb3 28. cxb3 Nf5 29. Qe2 h4 30. Qg4 Nxb3 31. Rf2 Nc5 32. Nc2 Nd3 33. Re2 Ng3 34. Ne3 Nxe2 35. Nxe2 Nf2 0-1

[Event "Monroe ch-MI op"]
[Site "Monroe"]
[Date "1986.??.??"]
[Round "6"]
[White "Mason, David"]
[Black "Finegold, Mark"]
[Result "0-1"]
[ECO "A91"]
[PlyCount "76"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nc3 0-0 6. Bg5 Nc6 7. Nf3 d6 8. d5 Ne5 9. Nd2 Nxd5 10. Nxd5 exd5 11. Bxd5+ Kh8 12. Bxe7 Qxe7 13. 0-0 f4 14. Rc1 Bg4 15. Rc3 c6 16. Bf3 Rae8 17. e3 Bh3 18. Bg2 Bxg2 19. Kxg2 f3+ 20. Kh1 Qe6 21. Rg1 Qh3 22. Qf1 Ng4 23. Nxf3 Qxf1 24. Rxf1 Rxf3 25. Kg2 Rf7 26. Rd3 Rd7 27. Rfd1 Red8 28. b3 Nf6 29. Kf3 Kg8 30. h3 Kf7 31. e4 d5 32. cxd5 cxd5 33. exd5 Rxd5 34. Rxd5 Rxd5 35. Rxd5 Nxd5 36. a3 Ke6 37. Ke4 Nc3+ 38. Kd4 Nb5+ 0-1

[Event "Monroe ch-MI op"]
[Site "Monroe"]
[Date "1986.??.??"]
[Round "2"]
[White "Mason, David"]
[Black "Quigley, Lawrence W"]
[Result "1/2-1/2"]
[ECO "A32"]
[BlackElo "2215"]
[PlyCount "46"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Qb6 7. e3 Nc6 8. Bg2 0-0 9. 0-0 d5 10. Qb3 Bxd2 11. Qxb6 axb6 12. Nxd2 Nxd4 13. exd4 Bd7 14. cxd5 exd5 15. a3 Ra4 16. Nf3 Rc8 17. Rfc1 Rac4 18. Rxc4 Rxc4 19. Ne5 Rxd4 20. Nxd7 Nxd7 21. Rc1 g5 22. h3 Nc5 23. b4 Nb3 1/2-1/2

[Event "Monroe ch-MI op"]
[Site "Monroe"]
[Date "1986.??.??"]
[Round "4"]
[White "Mason, David"]
[Black "Smith, Les Leroy"]
[Result "1-0"]
[ECO "A85"]
[PlyCount "41"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nc3 e6 4. a3 Be7 5. g3 0-0 6. Bg2 c6 7. Nf3 a5 8. 0-0 Na6 9. Bg5 Nc7 10. Qc2 d5 11. c5 Nce8 12. Ne5 Qc7 13. Na4 h6 14. Nb6 Ra6 15. Bd2 Nd7 16. Ng6 Rf7 17. Na4 Bf6 18. Bf4 e5 19. dxe5 Nxe5 20. Nb6 Be6 21. Bh3 1-0

[Event "Dearborn ch-MI M/X"]
[Site "Dearborn"]
[Date "1986.??.??"]
[Round "2"]
[White "Mason, David"]
[Black "Stone, Raymond"]
[Result "0-1"]
[ECO "D94"]
[BlackElo "2315"]
[PlyCount "110"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 0-0 6. e3 c5 7. Be2 Nc6 8. 0-0 cxd4 9. exd4 Be6 10. cxd5 Nxd5 11. Nxd5 Bxd5 12. Ne5 Qa5 13. Nxc6 Bxc6 14. Bf3 Rfd8 15. Be3 Bxf3 16. Qxf3 Qd5 17. Qxd5 Rxd5 18. Rac1 Rd7 19. g3 Rad8 20. Kg2 Bxd4 21. Bxd4 Rxd4 22. Rc7 R8d7 23. Rfc1 Rd2 24. R1c2 g5 25. Rxd2 Rxc7 26. Rd5 h6 27. Ra5 a6 28. Ra4 Kg7 29. b3 e6 30. h4 f5 31. hxg5 hxg5 32. Rb4 b5 33. a4 Rc5 34. Rd4 Rd5 35. Rb4 Kf6 36. axb5 Rxb5 37. Ra4 a5 38. f4 gxf4 39. gxf4 Rb4 40. Rxa5 Rxf4 41. Rb5 e5 42. Rb8 Rd4 43. b4 e4 44. b5 Ke5 45. b6 Kf4 46. Rf8 Rb4 47. Rf6 Rb2+ 48. Kf1 Kg4 49. Ke1 f4 50. Kd1 e3 51. Re6 Kf3 52. Kc1 Rb4 53. Kc2 Ke2 54. Kc3 Rb1 55. Kd4 Kd2 0-1

[Event "Monroe ch-MI op"]
[Site "Monroe"]
[Date "1986.??.??"]
[Round "7"]
[White "McKinney, T."]
[Black "Mason, David"]
[Result "0-1"]
[ECO "B17"]
[PlyCount "60"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 g6 7. Be2 Bg7 8. 0-0 0-0 9. c3 Qc7 10. Bg5 c5 11. Qd2 Rd8 12. Bf4 e5 13. dxe5 Ng4 14. e6 Nde5 15. exf7+ Kf8 16. Bxe5 Bxe5 17. Qc2 Bxg3 18. hxg3 Qxf7 19. Rad1 Bf5 20. Bd3 Rxd3 21. Rxd3 c4 22. Ng5 cxd3 23. Qa4 Qe7 24. Qd4 Qxg5 25. Qh8+ Kf7 26. Qxa8 Qh5 27. Qxb7+ Kf6 28. Qc6+ Be6 29. Qf3+ Kg7 30. Qb7+ Kh6 0-1

[Event "Dearborn ch-MI M/X"]
[Site "Dearborn"]
[Date "1986.??.??"]
[Round "1"]
[White "Thompson, D."]
[Black "Mason, David"]
[Result "0-1"]
[ECO "B17"]
[PlyCount "104"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Ne5 Be6 8. c3 g6 9. Bc4 Bxc4 10. Nxc4 Qd5 11. Ne3 Qd7 12. 0-0 Bg7 13. Nc4 0-0 14. Ne5 Qc7 15. Qb3 b5 16. Bf4 Nh5 17. Nxf7 Qxf4 18. Ng5+ Rf7 19. Nxf7 Qxf7 20. Rfe1 Qxb3 21. axb3 Kf7 22. Ra6 Rc8 23. Rxa7 Bf6 24. g3 Ng7 25. Rb7 Ne8 26. Ra1 Nd6 27. Rd7 Ke6 28. Raa7 c5 29. dxc5 Rxc5 30. f4 Rd5 31. g4 h6 32. h4 g5 33. fxg5 hxg5 34. h5 b4 35. Rac7 bxc3 36. bxc3 Rd3 37. Kg2 Re3 38. c4 Rxb3 39. c5 Ne4 40. c6 Rg3+ 41. Kf1 Rxg4 42. Ra7 Ng3+ 43. Ke1 Nxh5 44. Rd8 Re4+ 45. Kd2 Rd4+ 46. Rxd4 Bxd4 47. Rd7 Be5 48. Kd3 g4 49. Kc4 g3 50. Rd8 g2 51. Rg8 Ng3 52. Rg6+ Kf7 0-1

[Event "Monroe ch-MI op"]
[Site "Monroe"]
[Date "1986.??.??"]
[Round "1"]
[White "West, James R"]
[Black "Mason, David"]
[Result "0-1"]
[ECO "B10"]
[PlyCount "64"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. c4 d5 3. Nc3 d4 4. Na4 e5 5. c5 Nf6 6. d3 b5 7. cxb6 axb6 8. b3 Bd6 9. g3 0-0 10. f4 exf4 11. Bxf4 Re8 12. Bxd6 Qxd6 13. Nf3 Ng4 14. Qd2 c5 15. Bh3 b5 16. Nb2 Nc6 17. 0-0 Ne3 18. Bxc8 Nxf1 19. Rxf1 Rexc8 20. a4 Na5 21. e5 Qd5 22. Ng5 Qxe5 23. Rxf7 Nxb3 24. Qc2 Qxg5 25. Qxb3 c4 26. dxc4 Kxf7 27. axb5 Qe3+ 28. Qxe3 dxe3 29. Kf1 Ra2 30. Nd3 Rd8 31. Ne1 Rd1 32. c5 Rf2+ 0-1

[Event "Lansing-chMI op"]
[Site "Lansing"]
[Date "1985.??.??"]
[Round "7"]
[White "Avery, Robert William"]
[Black "Mason, David"]
[Result "1/2-1/2"]
[ECO "E36"]
[PlyCount "101"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 d5 7. Nf3 Nbd7 8. b4 dxc4 9. Qxc4 Nb6 10. Qc2 Bd7 11. e3 Ba4 12. Qb1 a6 13. Bd3 h6 14. 0-0 Bb5 15. Bd2 Ne8 16. Rc1 f5 17. Ne5 Nd6 18. Qb3 Re8 19. a4 Bxd3 20. Qxd3 c6 21. f3 Nd7 22. Bc3 Nf6 23. Re1 Nf7 24. Nxf7 Kxf7 25. e4 f4 26. Qc4 b5 27. Qb3 Re7 28. Ra2 Ne8 29. Rea1 Rc8 30. g3 fxg3 31. hxg3 Nd6 32. Re2 Nc4 33. f4 Qd7 34. Rf1 g6 35. Ba1 Rf8 36. Qc3 Ke8 37. Ra2 Ref7 38. Raf2 g5 39. axb5 axb5 40. Qc1 gxf4 41. gxf4 Qe7 42. Bc3 Qh4 43. Rh2 Qg3+ 44. Rg2 Qe3+ 45. Kh1 Qxe4 46. Re1 Qd5 47. Qa1 Rxf4 48. Qa8+ Ke7 49. Qa7+ Kd6 50. Qc5+ Kd7 51. Qa7+ 1/2-1/2

[Event "Westland SE MI op"]
[Site "Westland"]
[Date "1985.??.??"]
[Round "3"]
[White "Harrold, A."]
[Black "Mason, David"]
[Result "0-1"]
[ECO "A05"]
[PlyCount "48"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. e4 d6 5. d4 Nxe4 6. Bd3 Nc5 7. Be2 Bf5 8. Nc3 Ne6 9. h3 c5 10. g4 cxd4 11. gxf5 dxc3 12. Bb5+ Nc6 13. Bc1 Nc7 14. Bc4 Qd7 15. fxg6 hxg6 16. h4 0-0 17. Ng5 e6 18. Bf4 Ne5 19. Bf1 Qc6 20. f3 f6 21. Ne4 g5 22. Be3 d5 23. Nc5 d4 24. Bxd4 Nxf3+ 0-1

[Event "Motor City op"]
[Site "Detroit East"]
[Date "1985.??.??"]
[Round "2"]
[White "Kung, F."]
[Black "Mason, David"]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "93"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 8. Bd3 c5 9. dxc5 Bxc5 10. N1f3 h6 11. Ne4 Nxe4 12. Qxe4 Qd5 13. Bf4 Qxe4+ 14. Bxe4 Nd5 15. Bg3 Nf6 16. Bd3 Ke7 17. 0-0-0 Bd7 18. Ne5 Rhd8 19. Rd2 Rac8 20. Rhd1 Bb4 21. c3 Nd5 22. Bc2 Bc5 23. c4 Nb6 24. Nxd7 Rxd7 25. Rxd7+ Nxd7 26. Be4 b6 27. Bb7 Rf8 28. a3 a5 29. Kc2 Nf6 30. Kc3 Rd8 31. Rxd8 Kxd8 32. b4 axb4+ 33. axb4 Be7 34. f3 Nd7 35. Bc6 f5 36. Bf2 Bf6+ 37. Kb3 Be5 38. g3 Bc7 39. c5 bxc5 40. bxc5 Be5 41. f4 Bf6 42. Bb5 Kc7 43. Kc4 Nb8 44. Bd4 Nc6 45. Bxf6 gxf6 46. Kc3 e5 47. fxe5 1/2-1/2

[Event "Lansing-chMI op"]
[Site "Lansing"]
[Date "1985.??.??"]
[Round "5"]
[White "Mason, David"]
[Black "Armstead, Curt"]
[Result "1-0"]
[ECO "D87"]
[PlyCount "129"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Nf3 0-0 9. 0-0 Nc6 10. Be3 cxd4 11. Nxd4 Bd7 12. Qd2 Qa5 13. Nb3 Qc7 14. Bf4 Be5 15. Bxe5 Nxe5 16. Be2 Rac8 17. Rfd1 Rfd8 18. Rac1 Ng4 19. g3 Qb6 20. Qe1 Nf6 21. e5 Ne8 22. Bf3 Ba4 23. Rxd8 Rxd8 24. Nd4 Bc6 25. Bxc6 bxc6 26. Qe4 Rd5 27. Rb1 Qc7 28. f4 e6 29. Qe2 Rd7 30. Qc4 c5 31. Nb3 Rd5 32. Qb5 Kf8 33. c4 Rd8 34. Nxc5 Rc8 35. Ne4 Qxc4 36. Qxc4 Rxc4 37. Ng5 h6 38. Nh3 Ra4 39. Rb2 Nc7 40. Nf2 Nd5 41. Ng4 h5 42. Nf6 Nb6 43. Rc2 Rc4 44. Rb2 Rc7 45. Kf1 Nd7 46. Ne4 Nb6 47. Ke2 Ke7 48. Kd3 Nd5 49. Kd2 Kd7 50. Rc2 Rxc2+ 51. Kxc2 Nb4+ 52. Kb3 Nc6 53. Kc4 Kc7 54. Kc5 Nd8 55. Ng5 a6 56. a4 Nb7+ 57. Kb4 Nd8 58. Ne4 Nb7 59. Nc5 Kb6 60. Nxb7 Kxb7 61. Kc5 Kc7 62. a5 Kc8 63. Kb6 Kd7 64. Kxa6 Kc6 65. h3 1-0

[Event "Lansing-chMI op"]
[Site "Lansing"]
[Date "1985.??.??"]
[Round "2"]
[White "Mason, David"]
[Black "Czuhai, Kevin"]
[Result "0-1"]
[ECO "A65"]
[PlyCount "82"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. f3 c5 6. d5 e6 7. Be3 exd5 8. cxd5 d6 9. Nge2 Nbd7 10. Rc1 Ne5 11. Nb5 b6 12. a4 a6 13. Na3 Bd7 14. Nc3 Re8 15. h3 Nh5 16. Nc4 Nxc4 17. Bxc4 Ng3 18. Rg1 b5 19. Ne2 Nxe2 20. Bxe2 f5 21. axb5 fxe4 22. f4 Bxb5 23. b3 Qh4+ 24. g3 Qxh3 25. Bg4 Qh6 26. Kf2 Bb2 27. Rc2 Qg7 28. Qd2 Bd4 29. Rh1 Rab8 30. b4 Bd3 31. Ra2 Rxb4 32. Be6+ Kh8 33. Bxd4 Qxd4+ 34. Qe3 Rb2+ 35. Rxb2 Qxb2+ 36. Kg1 Rb8 37. Rh4 Qa1+ 38. Kh2 Rb2+ 39. Kh3 h5 40. Rxh5+ gxh5 41. Kh4 Rh2+ 0-1

[Event "Motor City op"]
[Site "Detroit East"]
[Date "1985.??.??"]
[Round "1"]
[White "Mason, David"]
[Black "Dmuchowski, F."]
[Result "1-0"]
[ECO "A39"]
[PlyCount "60"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 g6 4. g3 Bg7 5. Bg2 0-0 6. 0-0 cxd4 7. Nxd4 Nc6 8. Nc3 a6 9. Nb3 d6 10. e4 Qc7 11. Bf4 Rd8 12. Rc1 Ne8 13. Na4 Qb8 14. Nb6 Ra7 15. Be3 Be6 16. Nd5 Ra8 17. Bb6 Rd7 18. Qd2 Bxd5 19. cxd5 Ne5 20. Rc2 Nc7 21. Rfc1 Nb5 22. h3 Qf8 23. Qe3 f5 24. f4 Bh6 25. a4 Qf7 26. axb5 axb5 27. Rc8+ Rxc8 28. Rxc8+ Kg7 29. Nd4 Nc4 30. Ne6+ Kf6 1-0

[Event "Lansing-chMI op"]
[Site "Lansing"]
[Date "1985.??.??"]
[Round "3"]
[White "Mason, David"]
[Black "Halstead, Kevin"]
[Result "1-0"]
[ECO "E00"]
[PlyCount "121"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Bxd2+ 5. Nxd2 b6 6. Bg2 Nc6 7. Ngf3 Bb7 8. 0-0 Ne7 9. Qc2 c5 10. dxc5 bxc5 11. e4 d6 12. e5 dxe5 13. Nxe5 Bxg2 14. Kxg2 0-0 15. Rad1 Qc7 16. Ndf3 Rfd8 17. Qe2 Nc6 18. b3 Qb7 19. Kg1 h6 20. Rfe1 Qc7 21. Nxc6 Qxc6 22. Rd3 Kf8 23. Red1 Ke7 24. Qe5 Qb6 25. Nh4 Rxd3 26. Rxd3 Rc8 27. Nf5+ Kf8 28. Ne3 Qc7 29. Qxc7 Rxc7 30. f3 Ke7 31. Kf2 Rd7 32. Ke2 Rxd3 33. Kxd3 Nd7 34. f4 f5 35. a3 a5 36. Kc3 g6 37. b4 axb4+ 38. axb4 cxb4+ 39. Kxb4 Kd6 40. Kb5 Nc5 41. g4 Nd3 42. Kb6 Nc5 43. h4 Nd7+ 44. Kb5 Nc5 45. g5 h5 46. Ng2 Nd3 47. Kb6 Nc5 48. Ne1 Nd7+ 49. Kb5 Nc5 50. Nf3 Nd3 51. Kb6 Nc5 52. Ne5 Nd7+ 53. Nxd7 Kxd7 54. c5 Kc8 55. Kc6 e5 56. fxe5 f4 57. e6 Kd8 58. Kd6 f3 59. c6 f2 60. e7+ Ke8 61. c7 1-0

[Event "Motor City op"]
[Site "Detroit East"]
[Date "1985.??.??"]
[Round "5"]
[White "Mason, David"]
[Black "La Mar, Frank"]
[Result "0-1"]
[ECO "D08"]
[PlyCount "54"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 Nge7 6. Nb3 Ng6 7. Nbxd4 Ncxe5 8. Nxe5 Nxe5 9. e3 Bg4 10. Be2 Bb4+ 11. Bd2 Nd3+ 12. Kf1 Qh4 13. g3 Qf6 14. f3 Bh3+ 15. Kg1 Bxd2 16. Qxd2 Ne5 17. c5 Rd8 18. Qe1 0-0 19. g4 Ng6 20. Nf5 Ne7 21. Nxg7 Kxg7 22. Qg3 Rd2 23. Kf2 Rxe2+ 24. Kxe2 Qxb2+ 25. Kd3 Rd8+ 26. Kc4 Qc2+ 27. Kb5 a6+ 0-1

[Event "Westland SE MI op"]
[Site "Westland"]
[Date "1985.??.??"]
[Round "5"]
[White "Mason, David"]
[Black "Martin, K1111"]
[Result "1-0"]
[ECO "E11"]
[PlyCount "57"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nxd2 d5 7. Bg2 0-0 8. Qc2 Nbd7 9. Ngf3 c6 10. 0-0 b6 11. Rfe1 Bb7 12. e4 dxe4 13. Nxe4 Nxe4 14. Rxe4 g6 15. Rae1 Rfe8 16. Qd2 Rad8 17. Rh4 Qf6 18. Rhe4 Qg7 19. Qf4 c5 20. d5 Nf6 21. Re5 exd5 22. Rxe8+ Nxe8 23. Re7 Nd6 24. Ng5 Qf8 25. Rc7 h6 26. Nxf7 Nxf7 27. Rxb7 Nd6 28. Bxd5+ Nf7 29. Rxf7 1-0

[Event "Westland SE MI op"]
[Site "Westland"]
[Date "1985.??.??"]
[Round "2"]
[White "Mason, David"]
[Black "Poschel, Paul"]
[Result "0-1"]
[ECO "D20"]
[BlackElo "2260"]
[PlyCount "69"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. g3 e5 4. d5 Nf6 5. Bg2 Bb4+ 6. Nc3 0-0 7. e4 c6 8. Nge2 cxd5 9. exd5 Nbd7 10. 0-0 Nb6 11. Bg5 h6 12. Bxf6 Qxf6 13. Qc2 Bf5 14. Ne4 Qg6 15. Rfd1 Rfd8 16. a3 Bf8 17. N2c3 Rac8 18. Qe2 Bg4 19. f3 Bd7 20. Rac1 f5 21. Nd2 Bd6 22. Nf1 Kh8 23. Kh1 Re8 24. Qc2 Qf7 25. Nd2 Red8 26. Bf1 Rc7 27. a4 a5 28. Nb5 Bxb5 29. axb5 Rdc8 30. Qb1 Bb4 31. Qa2 Qxd5 32. Nxc4 Qe6 33. b3 Nd5 34. Qa1 e4 35. fxe4 0-1

[Event "Motor City op"]
[Site "Detroit East"]
[Date "1985.??.??"]
[Round "3"]
[White "Mason, David"]
[Black "Praedel, R."]
[Result "1-0"]
[ECO "D00"]
[PlyCount "25"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d5 3. g3 Bg4 4. Bg2 c6 5. Nf3 Nbd7 6. Ne5 Nxe5 7. dxe5 Nd7 8. cxd5 cxd5 9. Qxd5 Qc7 10. Nc3 Nxe5 11. Nb5 Qb8 12. Bf4 a6 13. Bxe5 1-0

[Event "Westland SE MI op"]
[Site "Westland"]
[Date "1985.??.??"]
[Round "1"]
[White "Mason, David"]
[Black "Selitsky, B."]
[Result "1-0"]
[ECO "E05"]
[PlyCount "59"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 dxc4 7. Qc2 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bf4 Bd6 11. Bg5 Nbd7 12. Rd1 h6 13. Bxf6 Nxf6 14. Nbd2 Rc8 15. Nb3 Be4 16. Qc1 Qe7 17. Nc5 Bxc5 18. Qxc5 Qd6 19. Ne5 Bxg2 20. Kxg2 Ne4 21. Qc6 f6 22. Qxe4 fxe5 23. Rac1 exd4 24. Rxd4 Qb6 25. Rc6 Qa7 26. Qxe6+ Kh8 27. e3 Rce8 28. Qg6 Qa8 29. Rd7 Rg8 30. Kg1 1-0

[Event "Lansing-chMI op"]
[Site "Lansing"]
[Date "1985.??.??"]
[Round "4"]
[White "Owens, J."]
[Black "Mason, David"]
[Result "1-0"]
[ECO "E18"]
[PlyCount "133"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. g3 e6 4. Bg2 Bb7 5. c4 d5 6. cxd5 exd5 7. 0-0 Be7 8. Nc3 0-0 9. Ne5 Nbd7 10. f4 c5 11. e3 Ne4 12. f5 Rc8 13. Nxe4 dxe4 14. Bd2 Bf6 15. Bc3 Re8 16. Ng4 Qe7 17. Nxf6+ Nxf6 18. Qe2 Nd5 19. Rae1 Rc7 20. Qg4 f6 21. Rf2 b5 22. Ba5 Rc6 23. dxc5 Rxc5 24. a3 Qe5 25. Rd2 Bc8 26. Bh3 Ne7 27. Qd1 Nxf5 28. Bb4 Nxe3 29. Qb3+ Nc4 30. Bg2 e3 31. Bxc5 Qxc5 32. Rd5 Na5 33. Rxc5+ Nxb3 34. Bd5+ Be6 35. Bxe6+ Rxe6 36. Rc8+ Kf7 37. Rc7+ Kg6 38. Rxa7 Nd2 39. Re2 Nf3+ 40. Kg2 Nd2 41. a4 bxa4 42. Rxa4 h5 43. Rd4 Kf5 44. Rd5+ Kg6 45. b4 Re4 46. b5 Nb1 47. Rc5 Nd2 48. Rd5 Nb1 49. Kf3 Rb4 50. Rxe3 Rb2 51. h3 Nd2+ 52. Kf2 Ne4+ 53. Ke1 Ng5 54. h4 Nf7 55. Kd1 Ne5 56. Kc1 Rb4 57. Kc2 Kf7 58. Rb3 Rxb3 59. Kxb3 Ke6 60. Rd1 Nd7 61. Kb4 g5 62. Ka5 gxh4 63. gxh4 f5 64. b6 Nxb6 65. Kxb6 Ke5 66. Kc5 Kf4 67. Rg1 1-0

[Event "Motor City op"]
[Site "Detroit East"]
[Date "1985.??.??"]
[Round "6"]
[White "Proszkow, T."]
[Black "Mason, David"]
[Result "0-1"]
[ECO "E46"]
[PlyCount "46"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 0-0 5. e3 b6 6. Bd3 Ba6 7. Qc2 d5 8. b3 Nbd7 9. Nf3 c5 10. Nb5 Bxb5 11. cxb5 Rc8 12. Bxb4 cxb4 13. Qe2 Rc3 14. 0-0 Qe7 15. Nd2 e5 16. Nb1 Rc7 17. f3 e4 18. fxe4 Nxe4 19. a3 bxa3 20. Rxa3 Re8 21. Re1 Ndf6 22. Ra2 Rec8 23. Nd2 Nc3 0-1

[Event "Westland SE MI op"]
[Site "Westland"]
[Date "1985.??.??"]
[Round "4"]
[White "Rawley, Lloyd"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "B17"]
[PlyCount "57"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bd3 Nxe4 7. Bxe4 Nf6 8. Bd3 Bg4 9. c3 e6 10. 0-0 Be7 11. Bf4 0-0 12. h3 Bxf3 13. Qxf3 Nd5 14. Be5 Bg5 15. Rad1 f6 16. Qe4 f5 17. Qf3 Ne7 18. Rfe1 Ng6 19. Bc4 Qe7 20. Bd6 Qxd6 21. Rxe6 Qxe6 22. Bxe6+ Kh8 23. Qh5 Nf4 24. Qxg5 Nxe6 25. Qe7 Rae8 26. Qxb7 Nd8 27. Qxa7 f4 28. Qd7 Re6 29. d5 1-0

[Event "Lansing-chMI op"]
[Site "Lansing"]
[Date "1985.??.??"]
[Round "1"]
[White "Schweikert, G."]
[Black "Mason, David"]
[Result "0-1"]
[ECO "D40"]
[PlyCount "58"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. Be2 0-0 8. 0-0 dxc4 9. Bxc4 Qc7 10. Qb3 a6 11. d5 b5 12. Bd3 Rd8 13. Rd1 exd5 14. Nxd5 Nxd5 15. Be4 Be6 16. Rxd5 Nc6 17. Be3 Rxd5 18. Qc2 Rc8 19. Bxd5 Bxd5 20. Qf5 Be6 21. Qe4 Nb4 22. Rc1 Qxc1+ 23. Bxc1 Rxc1+ 24. Ne1 Nc2 25. Qa8+ Bf8 26. g3 Nxe1 27. Kf1 Bc4+ 28. Kg1 Be2 29. f4 Bf3 0-1

[Event "Motor City op"]
[Site "Detroit East"]
[Date "1985.??.??"]
[Round "4"]
[White "Simon, P."]
[Black "Mason, David"]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "66"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Ne5 Be6 8. c3 g6 9. Bd3 Bg7 10. 0-0 0-0 11. Qe2 Rc8 12. Be3 Qc7 13. a3 Nd5 14. f4 c5 15. Rae1 Nxe3 16. Qxe3 cxd4 17. cxd4 Qb6 18. f5 gxf5 19. Bxf5 Bxf5 20. Rxf5 Qxb2 21. Kh1 Qc3 22. Qf2 Qxa3 23. Qf4 Qd6 24. Qg4 f6 25. Nf3 Rc4 26. Rh5 Qc7 27. Qe6+ Rf7 28. Ne5 fxe5 29. Rf1 Bf6 30. Rxh7 Kxh7 31. Qxf7+ Bg7 32. Qh5+ Kg8 33. Qf7+ Kh7 1/2-1/2

[Event "Lansing-chMI op"]
[Site "Lansing"]
[Date "1985.??.??"]
[Round "6"]
[White "Sprague, Al L"]
[Black "Mason, David"]
[Result "0-1"]
[ECO "A14"]
[PlyCount "52"]
[EventDate "1985.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. 0-0 e6 5. c4 Be7 6. d3 d5 7. b3 0-0 8. Bb2 c5 9. Nbd2 d4 10. e3 dxe3 11. fxe3 Qxd3 12. Re1 Qd8 13. e4 Nc6 14. e5 Nd7 15. Qe2 Qc7 16. Rad1 Rfd8 17. h4 Nf8 18. Kh2 Rd7 19. Ne4 Rad8 20. Rxd7 Rxd7 21. Qe3 Nd4 22. Nxd4 Qxe5 23. Nf3 Qxb2 24. Re2 Qa1 25. Qf4 Bxe4 26. Ne5 Bd6 0-1

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1984.??.??"]
[Round "?"]
[White "Jackson, C."]
[Black "Mason, David"]
[Result "0-1"]
[ECO "E21"]
[PlyCount "58"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. Nc3 Bb4 5. Bd2 0-0 6. e4 Bxc3 7. Bxc3 Nxe4 8. Qc2 Nxc3 9. Qxc3 Bb7 10. Be2 d6 11. 0-0-0 Nd7 12. h4 Nf6 13. Rdg1 Rc8 14. g4 c5 15. Rh2 cxd4 16. Nxd4 d5 17. b3 Qd6 18. Rh3 Rfd8 19. Rd1 dxc4 20. bxc4 Nd5 21. Qb2 Qf4+ 22. Kb1 Nf6 23. f3 e5 24. Nf5 Rxd1+ 25. Bxd1 Rxc4 26. Qa3 g6 27. Ne7+ Kg7 28. g5 Nd5 29. Qxa7 Qc1# 0-1

[Event "Plymouth ch-MI op"]
[Site "Plymouth"]
[Date "1984.??.??"]
[Round "?"]
[White "Mason, David"]
[Black "Alexander, Joe Matt"]
[Result "1-0"]
[ECO "E04"]
[PlyCount "43"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 c5 6. 0-0 Nc6 7. Na3 Be7 8. dxc5 Qxd1 9. Rxd1 Bxc5 10. Nxc4 Ne4 11. Be3 Bxe3 12. Nxe3 Ke7 13. Nd4 Nxd4 14. Rxd4 Nc5 15. Rad1 Rb8 16. Nc4 b6 17. Ne5 Bb7 18. b4 f6 19. bxc5 Bxg2 20. Rd7+ Ke8 21. Kxg2 fxe5 22. c6 1-0

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1984.??.??"]
[Round "?"]
[White "Mason, David"]
[Black "Blocker, Calvin"]
[Result "0-1"]
[ECO "E04"]
[BlackElo "2390"]
[PlyCount "86"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Nbd7 5. Nf3 dxc4 6. 0-0 c5 7. Na3 Nb6 8. Nxc4 Nxc4 9. Qa4+ Bd7 10. Qxc4 b5 11. Qc2 Rc8 12. Bg5 h6 13. Bxf6 gxf6 14. Qd2 Bc6 15. dxc5 Bxc5 16. Qxd8+ Kxd8 17. Rfd1+ Ke7 18. Nd4 Bd7 19. Nb3 Bb6 20. Rac1 a5 21. e3 Rhd8 22. Rxc8 Rxc8 23. Rc1 Rxc1+ 24. Nxc1 Kd6 25. Kf1 e5 26. Ke2 f5 27. f3 Be6 28. b3 Bc5 29. Nd3 Bb6 30. Nc1 a4 31. Kd3 Bc5 32. e4 fxe4+ 33. fxe4 Ba3 34. Ne2 axb3 35. axb3 Bxb3 36. Nc3 Bc4+ 37. Kc2 b4 38. Nb1 Kc5 39. Nxa3 bxa3 40. Kc3 a2 41. Kb2 Kd4 42. h4 Ke3 43. g4 f6 0-1

[Event "Plymouth ch-MI op"]
[Site "Plymouth"]
[Date "1984.??.??"]
[Round "?"]
[White "Mason, David"]
[Black "Groisser, David"]
[Result "1/2-1/2"]
[ECO "A32"]
[PlyCount "53"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Nc6 6. Bg2 Bc5 7. e3 Qb6 8. Nb3 Bb4+ 9. Bd2 0-0 10. 0-0 Rd8 11. Nc3 Bf8 12. e4 a6 13. Be3 Qc7 14. Na4 Re8 15. Nb6 Rb8 16. Rc1 d6 17. a3 Nd7 18. Na4 b6 19. Nd2 Nc5 20. Nc3 Bb7 21. Qc2 Rec8 22. Rfd1 Ba8 23. b4 Nd7 24. f4 Ne7 25. Qd3 Nf6 26. Ne2 Ng4 27. Nf3 1/2-1/2

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1984.??.??"]
[Round "?"]
[White "Mason, David"]
[Black "Jonik, H."]
[Result "1-0"]
[ECO "E81"]
[PlyCount "47"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nh5 7. Qd2 f5 8. exf5 Bxf5 9. g4 Bxg4 10. fxg4 Nf6 11. Bh3 Rf7 12. g5 Kh8 13. gxf6 exf6 14. 0-0-0 Nc6 15. Nf3 Qf8 16. Rdf1 f5 17. Ng5 Re7 18. Nd5 Rxe3 19. Nxe3 Nxd4 20. Rf4 c5 21. Nxf5 gxf5 22. Bxf5 Re8 23. Bd3 Qg8 24. Nf7+ 1-0

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1984.??.??"]
[Round "?"]
[White "Mason, David"]
[Black "Meleg, Mike"]
[Result "1/2-1/2"]
[ECO "A89"]
[PlyCount "55"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 f5 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nc3 Nf6 6. Nf3 0-0 7. 0-0 Nc6 8. d5 Ne5 9. Nxe5 dxe5 10. e4 e6 11. dxe6 c6 12. Qxd8 Rxd8 13. exf5 gxf5 14. e7 Re8 15. Bg5 Rxe7 16. Rad1 Be6 17. b3 Rd7 18. Na4 Rxd1 19. Rxd1 Nd7 20. Bf3 e4 21. Bh5 Ne5 22. Kg2 b6 23. Rd6 Bf7 24. Be2 c5 25. Bf6 Be8 26. Bxg7 Kxg7 27. Nc3 Nc6 28. Nd5 1/2-1/2

[Event "Plymouth ch-MI op"]
[Site "Plymouth"]
[Date "1984.??.??"]
[Round "?"]
[White "Mason, David"]
[Black "O'Donnell, Robert"]
[Result "0-1"]
[ECO "E81"]
[PlyCount "76"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c6 7. Qd2 a6 8. a4 a5 9. Nge2 Na6 10. Nc1 Qc7 11. Nb3 e5 12. d5 Nh5 13. Rc1 f5 14. dxc6 bxc6 15. Be2 Be6 16. 0-0 Rab8 17. c5 Nxc5 18. Nxc5 dxc5 19. Bxc5 Rfd8 20. Qc2 Bb3 21. Qb1 Qf7 22. Bd1 Nf4 23. Bxb3 Rxb3 24. Rfd1 Rdb8 25. Rd2 Ne6 26. Be3 Nd4 27. Kf1 Qc4+ 28. Ke1 Rxc3 29. Rxc3 Qxc3 30. bxc3 Rxb1+ 31. Kf2 f4 32. Bxd4 exd4 33. cxd4 Rb2 34. Ke2 Rxd2+ 35. Kxd2 Bxd4 36. Kd3 Bg1 37. h3 Kf7 38. Kc4 Ke6 0-1

[Event "Plymouth ch-MI op"]
[Site "Plymouth"]
[Date "1984.??.??"]
[Round "?"]
[White "Mason, David"]
[Black "Sacco, Gelabert"]
[Result "1-0"]
[ECO "E18"]
[PlyCount "63"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 b6 5. Bg2 Bb7 6. 0-0 Be7 7. Nc3 0-0 8. b3 Ne4 9. Qc2 Nxc3 10. Ng5 Ne4 11. Bxe4 Bxe4 12. Qxe4 Bxg5 13. Qxa8 Bf6 14. Ba3 Qc7 15. Qe4 Bxd4 16. Rad1 f5 17. Qc2 Nc6 18. e3 Bf6 19. Qd2 Rf7 20. f4 h6 21. Rf2 Qb7 22. Bb2 Bd8 23. Bc3 a6 24. Qb2 b5 25. Rfd2 Qa7 26. Bxg7 Rxg7 27. Qxg7+ Kxg7 28. Rxd7+ Qxd7 29. Rxd7+ Kf6 30. Rd6 bxc4 31. Rxc6 cxb3 32. axb3 1-0

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1984.??.??"]
[Round "?"]
[White "Petrison, John"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "A30"]
[PlyCount "74"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 b6 3. Bb2 e6 4. e3 Bb7 5. Be2 Be7 6. 0-0 0-0 7. c4 c5 8. Nc3 d6 9. Qc2 Nc6 10. Rad1 Rc8 11. d3 Qc7 12. Rd2 Rfd8 13. Ne4 Nxe4 14. dxe4 Ne5 15. Ne1 Bf6 16. f3 Nd7 17. Nd3 Bg5 18. f4 Bf6 19. Bf3 e5 20. Rfd1 Nf8 21. Nf2 Ng6 22. g3 Be7 23. Bg4 Rb8 24. h4 Bc6 25. Bh3 f6 26. h5 Nf8 27. Bg2 Qb7 28. Ng4 a6 29. Nf2 b5 30. cxb5 axb5 31. Bf3 b4 32. Be2 Ra8 33. Bc4+ Kh8 34. Bc1 Ra7 35. Qd3 Rda8 36. a4 bxa3 37. Ra2 Nd7 1-0

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1984.??.??"]
[Round "?"]
[White "Steen, Harold"]
[Black "Mason, David"]
[Result "0-1"]
[ECO "A15"]
[PlyCount "90"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. 0-0 e6 5. d3 d5 6. c4 Be7 7. cxd5 exd5 8. Nc3 0-0 9. d4 Re8 10. a3 Nbd7 11. b4 Ne4 12. Bb2 Bf6 13. Rc1 Rc8 14. e3 c5 15. Nxe4 dxe4 16. Nd2 Qe7 17. Nc4 cxb4 18. axb4 Ba6 19. b5 Bxb5 20. Ba3 Qd8 21. Qb3 Bxc4 22. Rxc4 Be7 23. Rfc1 Rxc4 24. Rxc4 Bxa3 25. Qxa3 Qb8 26. Qc3 b5 27. Rc7 Nb6 28. Qc1 b4 29. Rc2 b3 30. Rb2 Na4 31. Rb1 Rc8 32. Qa3 b2 33. Bxe4 Qb5 34. Kg2 a5 35. Bd3 Qb4 36. Qxb4 axb4 37. d5 Rc1 38. Kf3 Rxb1 39. Bxb1 Nc3 40. d6 Kf8 41. Bc2 b3 42. Bd3 b1Q 43. Bxb1 Nxb1 44. Ke2 b2 45. d7 Ke7 0-1

[Event "Plymouth ch-MI op"]
[Site "Plymouth"]
[Date "1984.??.??"]
[Round "?"]
[White "Steen, Harold"]
[Black "Mason, David"]
[Result "0-1"]
[ECO "A05"]
[PlyCount "132"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. Nc3 e6 5. d4 d5 6. 0-0 Be7 7. a4 0-0 8. a5 bxa5 9. Rxa5 c5 10. Ra1 Nbd7 11. Ne5 cxd4 12. Nxd7 Qxd7 13. Qxd4 Rac8 14. Qd1 Bc5 15. Na4 Qb5 16. Nxc5 Qxc5 17. c3 Qb5 18. Re1 h6 19. Ra4 Rc4 20. Rxc4 Qxc4 21. Qd4 Qxd4 22. cxd4 Rc8 23. Bd2 Rc2 24. Bc3 Ba6 25. Bf3 Ne4 26. Bxe4 dxe4 27. e3 Be2 28. h4 Kh7 29. Ra1 a6 30. Re1 Kg6 31. Kh2 f6 32. Rb1 Bd3 33. Kg1 Kh5 34. Be1 Re2 35. Rc1 Rxb2 36. Kg2 Kg4 37. Ba5 Be2 38. Bd8 Ra2 39. Be7 a5 40. Bf8 g5 41. Bxh6 gxh4 42. gxh4 Kxh4 43. Bf4 Bf3+ 44. Kg1 a4 45. Bd6 Kg4 46. Rf1 Kh3 47. Bb4 Rb2 48. Bc3 Rb7 49. Ra1 a3 50. Kf1 Ra7 51. Ke1 a2 52. Bb2 Kg2 53. Bc3 f5 54. Bb2 Bh5 55. Bc3 Be8 56. Ke2 Bb5+ 57. Ke1 Bc4 58. Rc1 Rb7 59. Kd2 Kxf2 60. Ba1 Bd3 61. Kc3 Rb1 62. Kd2 Rxc1 63. Kxc1 Kxe3 64. Kd1 Bb1 65. Ke1 f4 66. Kf1 Kd2 0-1

[Event "Plymouth ch-MI op"]
[Site "Plymouth"]
[Date "1984.??.??"]
[Round "?"]
[White "Swathell, Gary"]
[Black "Mason, David"]
[Result "0-1"]
[ECO "E17"]
[PlyCount "62"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 d5 8. Ne5 c5 9. cxd5 exd5 10. Bf4 Na6 11. Re1 cxd4 12. Qxd4 Nc5 13. Rad1 Nce4 14. Nxe4 Nxe4 15. Bxe4 dxe4 16. Qxd8 Rfxd8 17. Rc1 Rac8 18. Rxc8 Rxc8 19. Rc1 Bf6 20. Rxc8+ Bxc8 21. b3 g5 22. Nc4 gxf4 23. Nd6 Be6 24. Nxe4 Be5 25. gxf4 Bxf4 26. e3 Be5 27. f4 Bg7 28. Kf2 Bf5 29. Nd6 Bb1 30. Nc8 Bxa2 31. b4 a5 0-1

[Event "Plymouth ch-MI op"]
[Site "Plymouth"]
[Date "1984.??.??"]
[Round "?"]
[White "Youssef, Issa"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "A18"]
[PlyCount "81"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. cxd5 exd5 5. e5 Ne4 6. Nxe4 dxe4 7. Qa4+ Bd7 8. Qxe4 Bc6 9. Qe3 Bb4 10. Nf3 0-0 11. Bc4 Bd5 12. Bxd5 Qxd5 13. 0-0 Nc6 14. Rd1 Rad8 15. Qb3 Qxb3 16. axb3 Rd3 17. Kf1 Rfd8 18. Re1 a5 19. Re3 R3d5 20. Ke2 Ne7 21. Re4 c5 22. g4 h6 23. h4 Nc6 24. g5 hxg5 25. hxg5 Re8 26. d3 Red8 27. Re3 b6 28. e6 Kf8 29. exf7 Kxf7 30. Bd2 Bxd2 31. Kxd2 Nb4 32. Ne5+ Kg8 33. f4 Rd4 34. Rf1 b5 35. f5 c4 36. f6 g6 37. f7+ Kg7 38. Rf6 R4d6 39. f8Q+ Rxf8 40. Rxd6 Rf2+ 41. Re2 1-0

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Arganian, David G"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "B13"]
[PlyCount "77"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Na5 8. Qa4+ Bd7 9. Qc2 Qb6 10. Nd2 e6 11. Ngf3 Rc8 12. Ne5 Bb5 13. 0-0 Be7 14. Ndf3 0-0 15. Bxb5 Qxb5 16. Rfe1 Qa6 17. Bg5 b5 18. Qe2 Qb7 19. Rac1 Rc7 20. h3 Rfc8 21. Nxf7 Ne4 22. Bxe7 Rxe7 23. N7g5 Nxg5 24. Nxg5 Rc6 25. Qd3 g6 26. Nf3 Nc4 27. b3 Nd6 28. Ne5 Rb6 29. Qf3 Kg7 30. h4 Nf5 31. g3 b4 32. g4 Nxh4 33. Qe3 h6 34. f4 bxc3 35. Rxc3 Rb4 36. Nc6 Rb6 37. Nxe7 Qxe7 38. Qe5+ Kh7 39. Rc7 1-0

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Bailey, Gregory E"]
[Black "Mason, David"]
[Result "0-1"]
[ECO "B17"]
[PlyCount "80"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Ne2 Nb6 8. Bd3 c5 9. 0-0 c4 10. Be4 h6 11. Nxf7 Kxf7 12. Bf3 Bd6 13. b3 Qc7 14. Kh1 Bd7 15. bxc4 Nxc4 16. Qd3 Rac8 17. Rb1 Nb6 18. c3 Bc6 19. Rb3 Rhf8 20. Ba3 Bxa3 21. Rxa3 a6 22. Rb3 Bd5 23. Bxd5 Nbxd5 24. Rfb1 b5 25. a4 Qc4 26. Qxc4 Rxc4 27. axb5 axb5 28. Rxb5 Ne4 29. Rb7+ Kf6 30. f3 Nexc3 31. Nxc3 Rxc3 32. h4 Rd3 33. Ra1 Rxd4 34. g3 Rd2 35. Raa7 Rc8 36. Rf7+ Ke5 37. f4+ Ke4 38. Ra4+ Kf3 39. Ra3+ Ne3 40. Ra1 Rcc2 0-1

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Geno, R."]
[Black "Mason, David"]
[Result "0-1"]
[ECO "B13"]
[PlyCount "70"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. h3 Nf6 5. d4 e6 6. a3 Be7 7. Nc3 0-0 8. Bf4 a6 9. Bd3 Nc6 10. 0-0 Bd7 11. Ne2 Rc8 12. c3 Na5 13. Ne5 Bb5 14. Bxb5 axb5 15. a4 b4 16. cxb4 Bxb4 17. Bd2 Bxd2 18. Qxd2 Nb3 19. Qb4 Nxa1 20. Rxa1 Nd7 21. Nd3 Qb6 22. Qd2 Rc4 23. b4 Rfc8 24. Ra2 Qc7 25. Nc5 Nxc5 26. dxc5 b6 27. cxb6 Qxb6 28. b5 Ra8 29. Nc3 Qa5 30. Rc2 Rac8 31. b6 Qxb6 32. Rb2 Qa5 33. Rb3 Rxc3 34. Qxc3 Qxc3 35. Rxc3 Rxc3 0-1

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Mason, David"]
[Black "Kensek, Ronald"]
[Result "1/2-1/2"]
[ECO "E05"]
[PlyCount "141"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 dxc4 7. Qc2 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bf4 Nc6 11. Nbd2 Rc8 12. Rac1 Nb4 13. Qb1 c5 14. dxc5 Rxc5 15. a3 Nbd5 16. Be5 Qa8 17. Rxc5 Bxc5 18. Rc1 Qa7 19. e3 Nxe3 20. Rxc5 Nxg2 21. Bd4 Qa8 22. Bxf6 gxf6 23. Kxg2 Rd8 24. Qe1 Rxd2 25. Qxd2 Bxf3+ 26. Kg1 Kg7 27. Rc3 Bh1 28. f4 Bd5 29. g4 a5 30. Rh3 Qc6 31. Qc3 Qb6+ 32. Qe3 Qc7 33. Qd2 Qc5+ 34. Re3 Qc4 35. Rc3 Qe4 36. Kf2 Qg2+ 37. Ke1 Qg1+ 38. Ke2 Qxh2+ 39. Ke3 Qg3+ 40. Kd4 Qxg4 41. Kc5 b4 42. axb4 Qg1+ 43. Re3 axb4 44. Kxb4 h5 45. Qc3 h4 46. Kc5 Qf1 47. b4 Qxf4 48. b5 Qc7+ 49. Kb4 Qxc3+ 50. Rxc3 Kg6 51. b6 Bg2 52. Kc5 Kg5 53. Kd4 Kf4 54. Rc7 h3 55. b7 e5+ 56. Kc5 Bxb7 57. Rxb7 h2 58. Rb1 f5 59. Kd5 e4 60. Kd4 Kf3 61. Rb3+ Kg2 62. Rb2+ Kg3 63. Rb3+ Kg4 64. Rb1 f4 65. Kxe4 f5+ 66. Kd3 Kg3 67. Rf1 f3 68. Kd2 f2 69. Ke2 f4 70. Rh1 Kg2 71. Rxh2+ 1/2-1/2

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Mason, David"]
[Black "Maring, L."]
[Result "1-0"]
[ECO "D30"]
[PlyCount "123"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 c5 5. Nf3 Nc6 6. cxd5 exd5 7. dxc5 Bxc5 8. 0-0 0-0 9. Qc2 Be7 10. Rd1 h6 11. Be3 Be6 12. Nc3 Rc8 13. Rac1 Qa5 14. Qa4 Qxa4 15. Nxa4 b6 16. Nc3 Rfd8 17. Nd4 Ne5 18. Rc2 Nc4 19. Bc1 a6 20. b3 Nd6 21. Ba3 Kf8 22. Rdc1 b5 23. e3 Nf5 24. Bxe7+ Nxe7 25. Nce2 Rxc2 26. Rxc2 Rc8 27. Rxc8+ Nxc8 28. Nf4 Ke7 29. Nfxe6 fxe6 30. Bh3 e5 31. Bxc8 exd4 32. Bxa6 b4 33. Bd3 dxe3 34. fxe3 Ng4 35. e4 d4 36. Kg2 Ne5 37. Be2 Kd6 38. Kf2 Kc5 39. Bd1 Kd6 40. Be2 Nd7 41. Bf3 Ke5 42. Ke2 Nc5 43. Bg2 g5 44. Kd2 g4 45. Kc2 Nxe4 46. Kd3 Nc5+ 47. Kc4 d3 48. Bf1 d2 49. Be2 Ne4 50. Bxg4 Nc3 51. Kd3 d1Q+ 52. Bxd1 Nxd1 53. Kc4 Ne3+ 54. Kxb4 Nf1 55. Kc5 Nxh2 56. a4 Nf1 57. a5 Nxg3 58. a6 Ne4+ 59. Kc6 h5 60. a7 h4 61. a8Q h3 62. Qh8+ 1-0

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Mason, David"]
[Black "Youssef, Issa"]
[Result "1/2-1/2"]
[ECO "E01"]
[PlyCount "79"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 c6 5. Nf3 Bd6 6. b3 0-0 7. 0-0 a5 8. Ba3 b5 9. Bxd6 Qxd6 10. c5 Qe7 11. a3 Nbd7 12. b4 axb4 13. Qb3 bxa3 14. Nxa3 e5 15. e3 e4 16. Nd2 Ba6 17. Nc2 Rfb8 18. Rxa6 Rxa6 19. Nb4 Rba8 20. Nxa6 Rxa6 21. Qc3 Nb8 22. Ra1 Qa7 23. Nb3 Rxa1+ 24. Qxa1 Qa4 25. Qxa4 bxa4 26. Na1 Na6 27. Kf1 Nb4 28. Ke2 Kf8 29. h3 Nd7 30. Kd2 g5 31. Bf1 Nb8 32. Kc3 N8a6 33. Bxa6 Nxa6 34. Nc2 Ke7 35. Kb2 Kd7 36. Ka3 Kc7 37. Kxa4 Kb7 38. Ne1 Nc7 39. f4 f6 40. fxg5 1/2-1/2

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Postma, D."]
[Black "Mason, David"]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "96"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Ne2 h6 8. Nf3 Be7 9. 0-0 0-0 10. Bf4 Nb6 11. Bd3 Bd7 12. c4 c5 13. dxc5 Bxc5 14. Qc1 Rc8 15. Rd1 Ng4 16. Bg3 Qe7 17. h3 Nf6 18. a3 Ba4 19. Rd2 Bb3 20. Ne5 Rfd8 21. Qc3 Nxc4 22. Bxc4 Bxc4 23. Nxc4 Rxd2 24. Qxd2 Ne4 25. Qd3 Bxf2+ 26. Bxf2 Nxf2 27. Kxf2 Qh4+ 28. Qg3 Qxg3+ 29. Kxg3 Rxc4 30. Rc1 Rxc1 31. Nxc1 Kf8 32. Nb3 Ke7 33. Kf4 g5+ 34. Kg4 f5+ 35. Kf3 b6 36. g4 Kf6 37. Nd4 a6 38. b4 Ke5 39. Nc6+ Kd5 40. Ne7+ Kc4 41. gxf5 exf5 42. Nxf5 Kb3 43. Nxh6 Kxa3 44. b5 a5 45. Nf5 a4 46. Ke3 Kb4 47. Nd4 Kc5 48. Kd3 Kb4 1/2-1/2

