[Event "Washington State-chD"]
[Site "Kirkland"]
[Date "2020.02.16"]
[Round "7"]
[White "Mathews, Dan"]
[Black "Polich, Duane"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "1516"]
[PlyCount "45"]
[EventDate "2020.02.08"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 g6 2. d4 d6 3. Be2 Bg7 4. Be3 c5 5. c3 cxd4 6. Bxd4 Nf6 7. Bf3 Nc6 8. Be3 0-0 9. Ne2 Ne5 10. Ng3 b6 11. Be2 Bb7 12. f3 Rc8 13. 0-0 Qd7 14. Nd2 h5 15. Bg5 Qc7 16. Bxf6 Bxf6 17. f4 Nd7 18. Bxh5 gxh5 19. Nxh5 Kh7 20. Qg4 Rh8 21. Rf3 Rcg8 22. Nxf6+ Nxf6 23. Rh3+ 1-0

[Event "Washington State-chD"]
[Site "Kirkland"]
[Date "2020.02.15"]
[Round "5"]
[White "Mathews, Dan"]
[Black "Patton, Lorenzo"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "1516"]
[BlackElo "1492"]
[PlyCount "76"]
[EventDate "2020.02.08"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Be2 e6 4. 0-0 d5 5. exd5 exd5 6. d4 b6 7. Bb5 Bd7 8. dxc5 Nf6 9. cxb6 Qxb6 10. Bxc6 Qxc6 11. Ne5 Qc7 12. Nxd7 Qxd7 13. Bg5 Be7 14. Nd2 0-0 15. Bxf6 Bxf6 16. c3 Rab8 17. Rb1 Qf5 18. Nf3 Rfe8 19. Qd2 Re4 20. Rfd1 Rd8 21. Qd3 h6 22. Rd2 Qh5 23. Rbd1 Be5 24. Nxe5 Qxe5 25. h3 Rd6 26. Qf1 Rh4 27. Rd4 Rh5 28. Re1 Qg5 29. Rg4 Qf5 30. Rg3 Rg5 31. Rxg5 Qxg5 32. f4 Qg3 33. Qf2 Qd3 34. Qe3 Qc2 35. Re2 Qb1+ 36. Kh2 Re6 37. Qf3 Rxe2 38. Qxe2 Qxa2 1/2-1/2

[Event "Washington State-chD"]
[Site "Kirkland"]
[Date "2020.02.15"]
[Round "6"]
[White "Mathews, Dan"]
[Black "Velea, Stephanie"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "1516"]
[BlackElo "1574"]
[PlyCount "115"]
[EventDate "2020.02.08"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. g3 Nc6 3. Bg2 Nf6 4. Nc3 g6 5. Nge2 Bg7 6. 0-0 d6 7. d3 0-0 8. Rb1 Bd7 9. f3 Rc8 10. Be3 Be6 11. Qd2 b6 12. Bh6 Bxh6 13. Qxh6 Nd4 14. Qd2 Nxe2+ 15. Qxe2 d5 16. exd5 Nxd5 17. Nxd5 Bxd5 18. b3 e6 19. Qe3 Bc6 20. Rfe1 Qd4 21. Re2 Rc7 22. a4 h5 23. f4 Kg7 24. Bxc6 Rxc6 25. Kg2 Rd8 26. Qe5+ Kg8 27. Re4 Qxe5 28. Rxe5 Rd4 29. Rbe1 a5 30. Kf3 Rcd6 31. R1e4 R6d5 32. Rxd5 Rxd5 33. Ke3 Kg7 34. c3 Rd6 35. Rc4 Rd5 36. d4 f5 37. b4 axb4 38. cxb4 cxb4 39. Rxb4 Rd6 40. Kd3 Kf6 41. h4 Ke7 42. Rb3 Kd8 43. Rb5 Kc7 44. Re5 Kd7 45. a5 bxa5 46. Rxa5 Ke7 47. Rc5 Ra6 48. Rc3 Rd6 49. Rb3 Kf6 50. Ra3 Ke7 51. Ra7+ Kf6 52. Ra5 Ke7 53. Rb5 Kf7 54. Rc5 Ra6 55. Rc3 Rd6 56. Rc5 Ra6 57. Ke2 Ra3 58. Kf2 1/2-1/2

[Event "Washington State-chD"]
[Site "Kirkland"]
[Date "2020.02.09"]
[Round "4"]
[White "Wang, Felicity"]
[Black "Mathews, Dan"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1527"]
[BlackElo "1516"]
[PlyCount "122"]
[EventDate "2020.02.08"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 b6 3. c4 Bb7 4. Nc3 e6 5. d4 cxd4 6. Nxd4 Nf6 7. Bd3 Bc5 8. Be3 Nc6 9. Bc2 Nxd4 10. Bxd4 Bxd4 11. Qxd4 Bc6 12. 0-0 Qe7 13. Rad1 e5 14. Qd2 0-0 15. b3 a6 16. Bd3 Qc5 17. Rfe1 b5 18. Re3 b4 19. Ne2 Ng4 20. Rf3 f5 21. Ng3 f4 22. Nf1 Nf6 23. Qe2 d6 24. Bb1 Be8 25. Rh3 Bd7 26. Rhd3 Bg4 27. Qe1 Bxd1 28. Rxd1 a5 29. Nd2 a4 30. Nf3 axb3 31. axb3 h6 32. Nh4 Ra3 33. Rd3 Ra1 34. Rd1 Rfa8 35. Qe2 R8a3 36. Qc2 Ng4 37. Rf1 Qd4 38. h3 Nxf2 39. Qxf2 Qxf2+ 40. Kxf2 Rxb3 41. Bc2 Ra2 42. Rc1 Rc3 43. Ke2 Rcxc2+ 44. Rxc2 Rxc2+ 45. Kd3 Rc3+ 46. Kd2 Rxc4 47. Kd3 Rd4+ 48. Kc2 Rxe4 49. Kd3 Re3+ 50. Kc2 b3+ 51. Kd2 b2 52. Kc2 Re2+ 53. Kb1 g5 54. Nf3 e4 55. Nd4 Rxg2 56. Nf5 e3 57. Nd4 e2 58. Nxe2 Rxe2 59. h4 f3 60. hxg5 f2 61. gxh6 f1Q+ 0-1

[Event "Washington State-chD"]
[Site "Kirkland"]
[Date "2020.02.08"]
[Round "2"]
[White "Bian, Erin"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "C16"]
[WhiteElo "1405"]
[BlackElo "1516"]
[PlyCount "87"]
[EventDate "2020.02.08"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Be7 5. f4 c5 6. Nf3 Nc6 7. Be3 c4 8. Be2 h5 9. Qd2 Bd7 10. f5 Bb4 11. fxe6 Bxe6 12. 0-0 Qd7 13. Rf2 0-0-0 14. Raf1 f6 15. exf6 Nxf6 16. Ng5 Rde8 17. Qc1 Bg4 18. h3 Bxe2 19. Nxe2 Qe7 20. Bd2 Bxd2 21. Qxd2 Qe3 22. Qxe3 Rxe3 23. Nf7 Rg8 24. Nd6+ Kc7 25. Nf5 Ree8 26. Neg3 Ne4 27. Nxe4 Rxe4 28. c3 g6 29. Ng3 Re3 30. Rf3 Rge8 31. h4 b5 32. a3 a5 33. Rxe3 Rxe3 34. Rf7+ Kb6 35. Kf2 Re6 36. Ne2 b4 37. a4 bxc3 38. bxc3 Re4 39. Nf4 Nxd4 40. cxd4 Rxd4 41. Rf6+ Kc5 42. Ne6+ Kb4 43. Nxd4 c3 44. Rc6 1-0

[Event "Washington State-chD"]
[Site "Kirkland"]
[Date "2020.02.08"]
[Round "1"]
[White "Li, Edward1111"]
[Black "Mathews, Dan"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "1266"]
[BlackElo "1516"]
[PlyCount "124"]
[EventDate "2020.02.08"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 g6 2. Bc4 e6 3. Nc3 Bg7 4. Nf3 Ne7 5. d3 d5 6. exd5 exd5 7. Bb3 0-0 8. 0-0 c6 9. Bg5 f6 10. Be3 b6 11. Re1 Nf5 12. Nd4 Nxd4 13. Bxd4 Na6 14. Qf3 Nc7 15. Be3 Be6 16. Bf4 Bf7 17. Rad1 Qd7 18. Qg3 Ne6 19. Be3 Rae8 20. Qh3 f5 21. Bh6 Bxh6 22. Qxh6 Qd8 23. Ba4 b5 24. Bb3 Nc5 25. d4 Ne4 26. Nxe4 dxe4 27. Re3 Bxb3 28. Rxb3 Rf7 29. Rc3 Rc7 30. Rc5 Ree7 31. Qf4 Red7 32. c3 Rd6 33. Kf1 Rcd7 34. Qe5 Re7 35. Qf4 Qd7 36. Qg5 Rd5 37. Rxd5 cxd5 38. Qf4 Qc7 39. Qxc7 Rxc7 40. a3 Rc4 41. Ke2 a5 42. Ke3 b4 43. Rc1 b3 44. Kf4 Rc8 45. Ke5 Rd8 46. Ra1 a4 47. Rc1 Kf7 48. c4 dxc4 49. Rxc4 Re8+ 50. Kf4 Ra8 51. Rc7+ Ke6 52. Ra7 Kd5 53. Rd7+ Kc4 54. Ke3 Ra6 55. Rc7+ Kd5 56. Rc5+ Ke6 57. f3 exf3 58. gxf3 Ra7 59. Re5+ Kf7 60. Kf4 Re7 61. Ra5 Re2 62. Rxa4 Rxh2 1/2-1/2

[Event "Washington State-chD"]
[Site "Redmond"]
[Date "2019.02.24"]
[Round "8"]
[White "Kuhner, Mary"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1772"]
[BlackElo "1501"]
[PlyCount "60"]
[EventDate "2019.02.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ Qxf6 6. Nf3 Qd8 7. Bf4 Be7 8. Bd3 Bf6 9. c3 Nd7 10. Qc2 h6 11. 0-0-0 c6 12. h4 Qa5 13. Kb1 b5 14. g4 Bb7 15. g5 Be7 16. Rhe1 hxg5 17. Nxg5 Rxh4 18. Qd2 b4 19. Nxe6 bxc3 20. bxc3 fxe6 21. Rxe6 Rxf4 22. Qxf4 Qxc3 23. Qe3 Qb4+ 24. Kc2 Nf6 25. Rb1 Qa4+ 26. Kc1 Nd5 27. Rxe7+ Nxe7 28. Rxb7 Qa3+ 29. Kb1 Kd8 30. Qh3 Qxd3+ 1-0

[Event "Washington State-chD"]
[Site "Redmond"]
[Date "2019.02.24"]
[Round "9"]
[White "Mathews, Dan"]
[Black "Jiang, Brandon"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1501"]
[BlackElo "1705"]
[PlyCount "36"]
[EventDate "2019.02.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. Nc3 d6 6. h3 h6 7. d3 g5 8. Nxg5 hxg5 9. Bxg5 Rg8 10. h4 Rxg5 11. hxg5 Bg4 12. Qd2 Nd4 13. g6 Nh5 14. gxf7+ Kd7 15. Qh6 Qh4 16. f8Q Rxf8 17. Qxf8 Nf3+ 18. gxf3 Qg3+ 0-1

[Event "Washington State-chD"]
[Site "Redmond"]
[Date "2019.02.23"]
[Round "6"]
[White "Mathews, Dan"]
[Black "Velea, Stephanie"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "1501"]
[BlackElo "1665"]
[PlyCount "59"]
[EventDate "2019.02.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 a6 5. Be2 Ngf6 6. d3 e6 7. b3 Be7 8. Bb2 0-0 9. Nbd2 b5 10. e5 Nd5 11. exd6 Bxd6 12. Ne4 Bc7 13. d4 cxd4 14. Qxd4 f6 15. g3 Bb7 16. c4 e5 17. Qd2 Nf4 18. gxf4 Bxe4 19. Rad1 Bc6 20. f5 Qb8 21. Nh4 e4 22. Ng2 Bxh2+ 23. Kh1 Bc7 24. Qe3 Ne5 25. Nf4 Ng4 26. Bxg4 Bxf4 27. Qh3 e3+ 28. Bf3 e2 29. Bxc6 exf1Q+ 30. Qxf1 0-1

[Event "Washington State-chD"]
[Site "Redmond"]
[Date "2019.02.23"]
[Round "7"]
[White "Yan, Jeffrey Oliver"]
[Black "Mathews, Dan"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "1755"]
[BlackElo "1501"]
[PlyCount "166"]
[EventDate "2019.02.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Bd3 Be7 6. Nf3 0-0 7. 0-0 Nxe4 8. Bxe4 Bf6 9. c3 g6 10. Bh6 Re8 11. Qb3 c6 12. Rad1 Qb6 13. Ne5 Qxb3 14. axb3 Nd7 15. Nc4 Nb6 16. f4 Nxc4 17. bxc4 Bd7 18. Ra1 a6 19. c5 Rad8 20. Kf2 Bc8 21. Ke3 Bg7 22. Bxg7 Kxg7 23. g4 f6 24. Kd3 Re7 25. h4 e5 26. f5 Rde8 27. g5 gxf5 28. Bxf5 fxg5 29. Bxc8 Rxc8 30. Rg1 h6 31. hxg5 h5 32. Raf1 exd4 33. cxd4 Rce8 34. g6 h4 35. Rf4 Rh8 36. Rh1 h3 37. Rf3 h2 38. Rf2 Rh3+ 39. Kd2 Kxg6 40. Rhxh2 Rxh2 41. Rxh2 Kf6 42. Rh6+ Kf5 43. Kd3 Rg7 44. b3 Rd7 45. Kc4 a5 46. Rh8 Ke4 47. Re8+ Kf5 48. Kd3 Rg7 49. Rf8+ Ke6 50. Ke4 Rh7 51. Ra8 Rh1 52. Rxa5 Re1+ 53. Kd3 Kd7 54. Ra8 Rd1+ 55. Kc3 Rc1+ 56. Kd2 Rg1 57. Rf8 Rg3 58. Rf7+ Kc8 59. Kc2 Re3 60. Rf4 Kb8 61. Kb2 Ka7 62. Rf7 Ka6 63. Ka3 Rd3 64. Rd7 b6 65. Rd6 Kb5 66. Kb2 bxc5 67. dxc5 Rf3 68. Rd4 Kxc5 69. Rc4+ Kb5 70. Ka3 c5 71. Rh4 Kc6 72. Rh5 Kb6 73. Ka4 Rf4+ 74. Ka3 Kb5 75. Re5 Rd4 76. Re6 Rd7 77. Kb2 Rg7 78. Rd6 Rg2+ 79. Kc3 Rg3+ 80. Rd3 Rxd3+ 81. Kxd3 Kb4 82. Kc2 c4 83. bxc4 Kxc4 1/2-1/2

[Event "Washington State-chD"]
[Site "Redmond"]
[Date "2019.02.18"]
[Round "5"]
[White "Thomas, Damarcus T"]
[Black "Mathews, Dan"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "1719"]
[BlackElo "1501"]
[PlyCount "76"]
[EventDate "2019.02.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 c6 5. Bf4 Nd7 6. e4 dxe4 7. Nxe4 Bb4+ 8. Nc3 Ngf6 9. a3 Be7 10. Bc4 0-0 11. Nf3 Nb6 12. Bb3 Nfd5 13. Be5 Nxc3 14. bxc3 Bf6 15. 0-0 Bg4 16. Re1 Bxe5 17. Rxe5 Qf6 18. h3 Bxf3 19. Qxf3 Qxf3 20. gxf3 Rfe8 21. Rae1 Kf8 22. R1e4 Rxe5 23. dxe5 Ke7 24. f4 g6 25. Kg2 c5 26. Kg3 Rd8 27. c4 Rd3+ 28. Re3 Rd4 29. Rc3 Nd7 30. Kf3 Nf8 31. Bc2 Ne6 32. Be4 b6 33. h4 Rd2 34. Bd3 Nd4+ 35. Kg3 Rd1 36. Kg2 Rd2 37. Kg3 Rd1 38. Kg2 Rd2 1/2-1/2

[Event "Washington State-chD"]
[Site "Redmond"]
[Date "2019.02.17"]
[Round "4"]
[White "Mathews, Dan"]
[Black "Kaelin, Alex"]
[Result "1-0"]
[ECO "B27"]
[WhiteElo "1501"]
[BlackElo "1523"]
[PlyCount "120"]
[EventDate "2019.02.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. Bc4 Bg7 4. 0-0 e6 5. c3 Ne7 6. d4 cxd4 7. cxd4 d5 8. exd5 exd5 9. Bb5+ Nbc6 10. Bxc6+ bxc6 11. b3 0-0 12. Ba3 Re8 13. Nbd2 Nf5 14. Bc5 Nh4 15. Nxh4 Qxh4 16. Nf3 Qf4 17. g3 Qh6 18. Re1 Bg4 19. Qd3 Bf5 20. Qd2 Qh5 21. Ne5 f6 22. Nxc6 Bh6 23. f4 Be4 24. Qc3 Kf7 25. Nxa7 g5 26. fxg5 Qxg5 27. Nb5 Re6 28. Nc7 Rg8 29. Nxe6 Kxe6 30. Ba3 f5 31. Rac1 Rd8 32. Rxe4+ dxe4 33. Rf1 e3 34. Qd3 e2 35. Qxe2+ Qe3+ 36. Qxe3+ Bxe3+ 37. Kg2 Ra8 38. Bc5 Rxa2+ 39. Kf3 Bg5 40. Rf2 Ra1 41. Re2+ Kd7 42. Re5 Rb1 43. Rxf5 Rxb3+ 44. Ke4 h6 45. Kd5 Rb2 46. h4 Bc1 47. Rf7+ Ke8 48. Re7+ Kd8 49. Rg7 Rb5 50. Kc6 Rxc5+ 51. dxc5 Bb2 52. Rg6 Bc1 53. Kb7 Ke7 54. c6 Kf7 55. Rg4 h5 56. Rc4 Bb2 57. c7 Be5 58. c8Q Bxg3 59. Qf5+ Kg7 60. Rc6 Bd6 1-0

[Event "Washington State-chD"]
[Site "Redmond"]
[Date "2019.02.17"]
[Round "3"]
[White "Velea, Sophie"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "1629"]
[BlackElo "1501"]
[PlyCount "29"]
[EventDate "2019.02.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nd7 5. Nf3 e6 6. Bd3 Ne7 7. 0-0 c6 8. f5 Nf6 9. e5 dxe5 10. dxe5 Qb6+ 11. Kh1 Ng4 12. f6 Nf2+ 13. Rxf2 Qxf2 14. fxg7 Rg8 15. Ne4 1-0

[Event "Washington State-chD"]
[Site "Redmond"]
[Date "2019.02.16"]
[Round "2"]
[White "Mathews, Dan"]
[Black "Baxter, Brent Lee"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1501"]
[BlackElo "1786"]
[PlyCount "108"]
[EventDate "2019.02.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Qf3 Nf6 4. Qxd5 Nxd5 5. c3 e5 6. g3 c6 7. Bg2 Nd7 8. Bxd5 cxd5 9. d4 Bd6 10. Ne2 b6 11. 0-0 Ba6 12. Re1 0-0 13. Be3 Rfe8 14. Nd2 Rac8 15. Nf3 f6 16. Kg2 b5 17. a3 Bb7 18. Kg1 a6 19. Rad1 Nf8 20. h4 Ne6 21. Nh2 a5 22. f4 exf4 23. Nxf4 b4 24. axb4 axb4 25. Bd2 bxc3 26. bxc3 Bxf4 27. gxf4 Ba6 28. f5 Nc7 29. Nf1 Kf7 30. Rxe8 Rxe8 31. Ng3 Bc8 32. Ra1 Nb5 33. Ra5 Bd7 34. Kf2 Bc6 35. Ra6 Rc8 36. h5 Bd7 37. Ra5 Ke7 38. Ne2 Kd6 39. Nf4 Nc7 40. h6 gxh6 41. Nh5 Ke7 42. Nf4 Bc6 43. Rc5 Kd7 44. Nh5 Ne8 45. Bxh6 Ke7 46. Bf4 Bd7 47. Rxd5 Rxc3 48. Ng3 Bc6 49. Rc5 Rf3+ 50. Ke2 Rxf4 51. Rxc6 Rxd4 52. Ke3 Rd6 53. Rc8 Ra6 54. Ne4 Ra7 1/2-1/2

[Event "Seattle Super Masters-B"]
[Site "Seattle"]
[Date "2018.03.04"]
[Round "5"]
[White "Mathews, Dan"]
[Black "Petrov, Oscar"]
[Result "0-1"]
[ECO "A38"]
[WhiteElo "1490"]
[BlackElo "1751"]
[PlyCount "99"]
[EventDate "2018.03.02"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. Nf3 Nf6 6. 0-0 0-0 7. Rb1 e6 8. d3 d5 9. cxd5 exd5 10. Bg5 h6 11. Bxf6 Bxf6 12. e4 dxe4 13. Nxe4 Be7 14. Qd2 Kh7 15. Qe3 Nd4 16. Nxd4 cxd4 17. Qe2 Rb8 18. f4 Bd7 19. Qf2 Bb5 20. Qd2 f5 21. Nf2 g5 22. Rfe1 Bf6 23. Qb4 Qd7 24. fxg5 hxg5 25. Rbc1 b6 26. Re2 Rbe8 27. Rce1 Rxe2 28. Rxe2 Re8 29. Qe1 Rxe2 30. Qxe2 Qe8 31. Qf3 Kg6 32. g4 Qe6 33. gxf5+ Qxf5 34. Qe2 Qf4 35. Be4+ Kh6 36. Ng4+ Kg7 37. Nxf6 Kxf6 38. Qf2 Ke5 39. Qxf4+ Kxf4 40. Kf2 Kg4 41. Kg2 a5 42. h3+ Kf4 43. Kf2 Bd7 44. Bg2 Bf5 45. Bf1 b5 46. a3 a4 47. Be2 Bxh3 48. Bd1 Be6 49. Bf3 Bf5 50. Ke2 0-1

[Event "Seattle Super Masters-B"]
[Site "Seattle"]
[Date "2018.03.03"]
[Round "3"]
[White "Mathews, Dan"]
[Black "Mahajan, Rushaan"]
[Result "0-1"]
[ECO "C68"]
[WhiteElo "1490"]
[BlackElo "1718"]
[PlyCount "82"]
[EventDate "2018.03.02"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[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 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. h3 h5 7. d3 Qf6 8. Kh1 Bxf3 9. Qxf3 Qxf3 10. gxf3 Bd6 11. Nc3 f6 12. Be3 c5 13. Ne2 g5 14. c3 Ne7 15. d4 cxd4 16. cxd4 0-0-0 17. d5 Ng6 18. Rac1 Nh4 19. Bc5 Nxf3 20. Rfd1 g4 21. Rd3 Ng5 22. Bxd6 Rxd6 23. Ng3 Nxh3 24. Rc2 Kb8 25. Nf5 Rd7 26. Rxh3 gxh3 27. Kh2 Rg8 28. Kxh3 Rg4 29. f3 Rg1 30. Kh2 Rg5 31. Rf2 Rxf5 32. exf5 Rxd5 33. Rg2 c5 34. Kh3 Rd3 35. Rg3 e4 36. fxe4 Rxg3+ 37. Kxg3 Kc7 38. e5 fxe5 39. f6 Kd7 40. f7 Ke7 41. f8Q+ Kxf8 0-1

[Event "Seattle Masters-B 12"]
[Site "Seattle"]
[Date "2017.12.09"]
[Round "1"]
[White "Mathews, Dan"]
[Black "Elisara, Travis"]
[Result "1/2-1/2"]
[ECO "A96"]
[PlyCount "78"]
[EventDate "2017.12.09"]
[EventType "swiss"]
[EventRounds "3"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nf3 Be7 5. 0-0 0-0 6. c4 d6 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Bf6 10. Qc2 Nc6 11. d5 exd5 12. cxd5 Nb4 13. Qb3 a5 14. a3 Na6 15. Be3 Qe8 16. Qc2 Bd7 17. Bd4 Qe4 18. Qc3 Qxe2 19. Rfe1 Qb5 20. Bxf6 Rxf6 21. Re7 Nc5 22. Nd4 Qb6 23. Rae1 Raf8 24. Ne6 Nxe6 25. dxe6 Bc6 26. Bxc6 bxc6 27. Rxg7+ Kxg7 28. e7 Kg8 29. exf8Q+ Rxf8 30. Re7 Rf7 31. Re8+ Rf8 32. Rxf8+ Kxf8 33. Qh8+ Ke7 34. Qxh7+ Ke6 35. Qg6+ Ke5 36. Qe8+ Kd5 37. Qf7+ Ke5 38. Qe8+ Kd5 39. Qf7+ Ke5 1/2-1/2

[Event "Seattle Masters-B 12"]
[Site "Seattle"]
[Date "2017.12.09"]
[Round "3"]
[White "Wang, Kai"]
[Black "Mathews, Dan"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1606"]
[PlyCount "81"]
[EventDate "2017.12.09"]
[EventType "swiss"]
[EventRounds "3"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Ne2 h6 5. Ng3 Bg6 6. h4 e6 7. h5 Bh7 8. Bd3 Bxd3 9. cxd3 Bb4+ 10. Nd2 Ne7 11. 0-0 Nf5 12. Qg4 Qg5 13. Qxg5 hxg5 14. Nxf5 exf5 15. Nf3 g4 16. Ne1 Bxe1 17. Rxe1 Rxh5 18. g3 Na6 19. a3 Kd7 20. Kf1 Rh1+ 21. Ke2 Rxe1+ 22. Kxe1 Rh8 23. Ke2 Rh1 24. b4 b6 25. Bb2 Rxa1 26. Bxa1 Ke6 27. Ke3 c5 28. dxc5 bxc5 29. b5 Nc7 30. a4 g5 31. d4 c4 32. Bc3 Kd7 33. Kd2 Ne6 34. Ke3 Kc7 35. Bb4 Kb6 36. Bc3 a6 37. bxa6 Kxa6 38. Ke2 Kb6 39. Ke3 f4+ 40. gxf4 gxf4+ 41. Ke2 0-1

[Event "Clark Harmon Memorial 8th"]
[Site "Seattle"]
[Date "2014.05.03"]
[Round "2"]
[White "Dutton, Carl"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "B44"]
[WhiteElo "1653"]
[BlackElo "1805"]
[PlyCount "37"]
[EventDate "2014.05.03"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Bb4+ 6. Nc3 Qf6 7. Be3 Nge7 8. Be2 a6 9. 0-0 e5 10. Nf3 g6 11. Nd5 Nxd5 12. cxd5 Nd8 13. Nxe5 0-0 14. Ng4 Qg7 15. Bh6 Qxb2 16. Rb1 Qc3 17. Rb3 Qc5 18. Nf6+ Kh8 19. Qa1 1-0

[Event "Clark Harmon Memorial 8th"]
[Site "Seattle"]
[Date "2014.05.03"]
[Round "3"]
[White "Jiang, Peiqi"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1691"]
[BlackElo "1805"]
[PlyCount "82"]
[EventDate "2014.05.03"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nc6 3. g3 Nf6 4. Bg2 e6 5. d3 Bd6 6. 0-0 h5 7. Nc3 Bd7 8. e4 dxe4 9. dxe4 Bc5+ 10. Kh1 Ng4 11. Qe2 h4 12. Nxh4 Rxh4 13. gxh4 Qxh4 14. h3 Nf2+ 15. Kh2 0-0-0 16. Nd1 Nxd1 17. Rxd1 e5 18. f5 Bf2 19. c3 Qg3+ 20. Kh1 Rh8 21. Qd3 Qxd3 22. Rxd3 g6 23. fxg6 fxg6 24. Kh2 Bh4 25. Bd2 g5 26. Be3 Be6 27. b3 g4 28. hxg4 Bxg4 29. Bh3 Bxh3 30. Kxh3 Be7+ 31. Kg2 Rh4 32. Kf3 Rh3+ 33. Ke2 Bh4 34. Rf1 b6 35. Bg1 Rh1 36. Bf2 Rh2 37. Rf3 Ne7 38. Rg1 Bxf2 39. Rxf2 Rh3 40. Kd2 Rh4 41. Re2 Nc6 1-0

[Event "Clark Harmon Memorial 8th"]
[Site "Seattle"]
[Date "2014.05.03"]
[Round "1"]
[White "Mathews, Dan"]
[Black "Feng, Roland"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1805"]
[BlackElo "2245"]
[PlyCount "64"]
[EventDate "2014.05.03"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Ne5 Bd6 6. Bd3 c5 7. Bb5+ Nbd7 8. 0-0 0-0 9. Nxd7 Nxd7 10. Bxd7 Qxd7 11. dxc5 Bxc5 12. Bf4 Qf5 13. Bg3 Be6 14. Nd2 d4 15. Re1 Rac8 16. Nf3 Qd5 17. Re5 Qd7 18. Qd3 f6 19. Rh5 g6 20. Rh4 g5 21. Re4 Bf5 22. Qb3+ Kh8 23. Ree1 Bb6 24. Rac1 Qc6 25. c3 d3 26. h3 g4 27. hxg4 Bxg4 28. Nd2 Be2 29. Qb4 Rg8 30. Qh4 Rg4 31. Qh3 Rcg8 32. Kh2 Bxf2 0-1

[Event "Washington State Invitational"]
[Site "Seattle"]
[Date "2011.02.21"]
[Round "9"]
[White "He, Daniel Ming"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "1821"]
[BlackElo "1820"]
[PlyCount "83"]
[EventDate "2011.02.12"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 c6 2. e4 d5 3. e5 Bf5 4. Nf3 h6 5. Bd3 Bxd3 6. Qxd3 e6 7. 0-0 Nd7 8. c3 Ne7 9. Nbd2 Nf5 10. Re1 Nh4 11. Nf1 Nxf3+ 12. Qxf3 Be7 13. Qg4 g6 14. f4 h5 15. Qf3 Qc7 16. Ne3 0-0-0 17. b4 f5 18. a4 g5 19. fxg5 Bxg5 20. Nxf5 exf5 21. Bxg5 Rde8 22. a5 Re6 23. Qxf5 Rhe8 24. Rf1 a6 25. Qf7 Qb8 26. Qxh5 Nxe5 27. Bf4 Qa7 28. Bxe5 Rxe5 29. Rf5 Re3 30. Raf1 b5 31. Rf7 R3e7 32. Qf5+ Kb8 33. h4 Qc7 34. Qf4 Qxf4 35. R1xf4 Re1+ 36. Kh2 R8e3 37. Rg7 Re8 38. h5 R1e3 39. h6 R3e6 40. Rh4 Rh8 41. h7 Ree8 42. Rh6 1-0

[Event "Washington State Invitational"]
[Site "Seattle"]
[Date "2011.02.20"]
[Round "7"]
[White "He, Samuel Fei"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1802"]
[BlackElo "1820"]
[PlyCount "121"]
[EventDate "2011.02.12"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 e6 2. c4 Bb4+ 3. Bd2 Bxd2+ 4. Qxd2 Nf6 5. Nc3 d5 6. g3 dxc4 7. Nf3 c6 8. Ne5 0-0 9. Bg2 Nbd7 10. Nxc4 Nb6 11. Ne5 Nfd7 12. Nf3 Nd5 13. e4 Nxc3 14. bxc3 b6 15. 0-0 Ba6 16. Rfd1 Rc8 17. Qc2 Qe7 18. Rd2 Rfd8 19. Re1 Nf8 20. Qa4 Bb5 21. Qb3 Ba6 22. c4 Qc7 23. Bf1 Bb7 24. Rde2 Qb8 25. Rd2 Rc7 26. Ne5 Nd7 27. Ng4 Nf8 28. Ne3 Rcd7 29. Red1 Ng6 30. f4 Ne7 31. Bg2 c5 32. d5 e5 33. Bh3 exf4 34. gxf4 Qxf4 35. Bxd7 Rxd7 36. Qd3 Ng6 37. Rf1 Qe5 38. Ng4 Qg5 39. Rg2 Nf4 40. Qe3 h5 41. Rxf4 hxg4 42. Qg3 g6 43. Qxg4 Qxg4 44. Rfxg4 Re7 45. Rc2 Bc8 46. Rf4 Kg7 47. Rd2 Bd7 48. h4 a6 49. Rdf2 Be8 50. d6 Rb7 51. e5 b5 52. cxb5 axb5 53. Rf6 c4 54. e6 fxe6 55. Rxe6 Bf7 56. Re7 Rxe7 57. dxe7 c3 58. Kf1 b4 59. Ke1 Be8 60. Rf8 c2 61. Kd2 1-0

[Event "Washington State Invitational"]
[Site "Seattle"]
[Date "2011.02.20"]
[Round "8"]
[White "Mathews, Dan"]
[Black "Tokareva, Kate"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1820"]
[BlackElo "1871"]
[PlyCount "91"]
[EventDate "2011.02.12"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. f3 Bc5 7. Be2 0-0 8. Nc3 Qe7 9. Bg5 Bb4 10. Qd4 c5 11. Bxf6 cxd4 12. Bxe7 Bxe7 13. Nb5 c5 14. b3 Bb7 15. 0-0 Bf6 16. Rad1 Bc6 17. Bc4 a5 18. a4 Rad8 19. Nc7 Be5 20. Nd5 Bxd5 21. Bxd5 Bf4 22. g3 Be3+ 23. Kg2 g6 24. f4 Kg7 25. f5 f6 26. Rf3 g5 27. g4 Rde8 28. c3 Rb8 29. cxd4 Bxd4 30. Rxd4 cxd4 31. Rd3 Rb6 32. Rxd4 Re8 33. Rd3 Rc8 34. Bc4 d6 35. Kg3 Rc7 36. Kf3 Rc5 37. Ke3 Rbc6 38. Rd4 Kf8 39. Kd3 Rb6 40. Kd2 Rc8 41. h3 Ke7 42. Bb5 Rc5 43. Rd3 Re5 44. Rd4 Rc5 45. Rd3 Re5 46. Rd4 1/2-1/2

[Event "Washington State Invitational"]
[Site "Seattle"]
[Date "2011.02.19"]
[Round "5"]
[White "Buck, Stephen"]
[Black "Mathews, Dan"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "1762"]
[BlackElo "1820"]
[PlyCount "223"]
[EventDate "2011.02.12"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. cxd5 exd5 5. d4 c6 6. e3 Bf5 7. Bd3 Bxd3 8. Qxd3 Bd6 9. 0-0 0-0 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 Re8 13. Qc2 h6 14. Be3 Na6 15. Rad1 Nb4 16. Qb3 Qc7 17. Rfe1 Nd5 18. a3 Re7 19. Bd2 Rae8 20. Rxe7 Rxe7 21. Re1 Rxe1+ 22. Bxe1 Qe7 23. Qd1 Qe4 24. g3 Nb6 25. Qb3 Qd5 26. Qxd5 Nxd5 27. Kf1 Kf8 28. Ke2 Ke7 29. Kd3 Ke6 30. Bd2 b5 31. h3 f5 32. Ne1 Nf6 33. Ng2 Ne4 34. Be3 g5 35. h4 Kd5 36. hxg5 hxg5 37. f3 Nxg3 38. Bxg5 Ke6 39. Nf4+ Bxf4 40. Bxf4 Nh5 41. Bd2 Nf6 42. Bg5 Nd5 43. Bd2 Nb6 44. b3 a6 45. Ba5 Nd5 46. Bd2 Ne7 47. Bg5 Ng6 48. a4 Kd5 49. axb5 cxb5 50. Bd8 Nf4+ 51. Ke3 Ne6 52. Bb6 a5 53. Bxa5 Nxd4 54. b4 Ne6 55. Kd3 Nd4 56. Ke3 Ne6 57. Kd3 f4 58. Bb6 Ng5 59. Bc7 Nxf3 60. Bxf4 Nd4 61. Bd2 Nf3 62. Bc3 Ng5 63. Bf6 Ne6 64. Be7 Nf4+ 65. Kc3 Ke4 66. Bc5 Ne6 67. Be7 Nc7 68. Bf8 Nd5+ 69. Kb3 Kd3 70. Bg7 Nf4 71. Bf8 Ne2 72. Be7 Nd4+ 73. Kb2 Kc4 74. Bc5 Nc6 75. Ka3 Ne5 76. Be7 Nd3 77. Bf8 Kc3 78. Bg7+ Kc2 79. Bf6 Nf4 80. Be7 Nd5 81. Bf8 Kc3 82. Bc5 Nf4 83. Be7 Ne2 84. Bf8 Ng1 85. Bg7+ Kc4 86. Bf8 Nf3 87. Be7 Ne1 88. Kb2 Nd3+ 89. Ka3 Nc1 90. Bf8 Nb3 91. Kb2 Nd4 92. Bd6 Nf5 93. Bf8 Ne3 94. Bd6 Nd1+ 95. Ka3 Kc3 96. Be5+ Kc2 97. Bf6 Nc3 98. Bg7 Nb1+ 99. Ka2 Nd2 100. Bf6 Nc4 101. Bg7 Nb6 102. Ka3 Kd3 103. Kb3 Nd7 104. Bc3 Nf8 105. Be5 Ne6 106. Bd6 Nd4+ 107. Kb2 Kc4 108. Bf8 Ne6 109. Be7 Nd4 110. Bf8 Nc6 111. Ka3 Nxb4 112. Bxb4 1/2-1/2

[Event "Washington State Invitational"]
[Site "Seattle"]
[Date "2011.02.19"]
[Round "6"]
[White "Mathews, Dan"]
[Black "Watts, Peter Owen"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "1820"]
[BlackElo "1910"]
[PlyCount "146"]
[EventDate "2011.02.12"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. c3 Nf6 2. Qc2 d5 3. d4 b6 4. Bf4 Bb7 5. Nf3 Nbd7 6. g3 Rc8 7. Bh3 c5 8. dxc5 Rxc5 9. 0-0 g6 10. Nbd2 Bg7 11. Nb3 Rc8 12. Rad1 0-0 13. Ne5 e6 14. Nxd7 Nxd7 15. Bd6 Re8 16. Ba3 Ne5 17. Nd4 Nc4 18. Qa4 a6 19. b4 b5 20. Qb3 f5 21. e3 Qc7 22. Bc1 Nd6 23. Bb2 Ne4 24. Rd3 Qc4 25. Qxc4 Rxc4 26. f3 Ng5 27. Bg2 e5 28. Ne2 e4 29. fxe4 dxe4 30. Rd7 Bc6 31. Ra7 Ra8 32. Rxa8+ Bxa8 33. Rd1 Nf7 34. Nd4 Bxd4 35. Rxd4 Rxd4 36. exd4 Bd5 37. a3 Bc4 38. Bc1 Kf8 39. g4 Ke7 40. gxf5 gxf5 41. Kf2 Nh8 42. h4 h5 43. Bg5+ Kd6 44. Ke3 Ng6 45. Bh3 Be6 46. Bf1 Kd5 47. Be2 f4+ 48. Bxf4 Nxh4 49. Kf2 Ng6 50. Bc1 h4 51. a4 Bd7 52. axb5 Bxb5 53. Bh5 Be8 54. Bd2 Kc4 55. Be2+ Kb3 56. Bxa6 Kc2 57. Be1 Nf4 58. Kg1 Kd1 59. Bxh4 Nd5 60. b5 Nxc3 61. b6 Bc6 62. Kf2 e3+ 63. Kxe3 Nd5+ 64. Kf2 Nxb6 65. Bd3 Kd2 66. Be2 Kc3 67. Bf6 Bd5 68. Bf3 Bxf3 69. Kxf3 Kc4 70. Ke4 Nd5 71. Be5 Nc3+ 72. Ke3 Nb5 73. d5 Kxd5 1/2-1/2

[Event "Washington State Invitational"]
[Site "Seattle"]
[Date "2011.02.13"]
[Round "3"]
[White "Mathews, Dan"]
[Black "Hoffman, Nicholas"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "1820"]
[BlackElo "1927"]
[PlyCount "115"]
[EventDate "2011.02.12"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nc6 5. 0-0 Nf6 6. Nc3 0-0 7. d3 d6 8. d4 cxd4 9. Nxd4 Nxd4 10. Qxd4 Be6 11. Qd1 Bc4 12. Re1 Nd7 13. Nd5 Nb6 14. c3 e6 15. Ne3 Qc7 16. Ng4 h5 17. Ne3 Rfd8 18. Nxc4 Nxc4 19. Bf1 b5 20. Rb1 a6 21. Bxc4 Qxc4 22. a3 d5 23. exd5 Rxd5 24. Qc2 h4 25. Be3 Rad8 26. Rbd1 Qg4 27. Rxd5 Rxd5 28. Qe2 Qh3 29. Qf1 Qg4 30. f3 Qa4 31. g4 a5 32. h3 Qb3 33. Qf2 b4 34. axb4 axb4 35. cxb4 Bxb2 36. Rb1 Rd1+ 37. Rxd1 Qxd1+ 38. Kg2 Qb3 39. Bc5 g5 40. Qd2 Bf6 41. Be3 Kh7 42. Bc5 Kg6 43. Qe2 Qd5 44. Qe4+ Qxe4 45. fxe4 Be5 46. Ba7 f5 47. exf5+ exf5 48. Kf3 Kf6 49. b5 Ke6 50. gxf5+ Kxf5 51. Bg1 Bb8 52. b6 Bf4 53. b7 Bb8 54. Kg2 g4 55. hxg4+ Kxg4 56. Bh2 h3+ 57. Kh1 Ba7 58. Bg1 1/2-1/2

[Event "Washington State Invitational"]
[Site "Seattle"]
[Date "2011.02.13"]
[Round "4"]
[White "Mathews, Dan"]
[Black "Smith, Mark1111"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "1820"]
[BlackElo "1907"]
[PlyCount "136"]
[EventDate "2011.02.12"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 c6 6. e5 Nd5 7. Nxd5 cxd5 8. exd6 Qxd6 9. c3 Nc6 10. Be3 Bg4 11. Qd2 Rc8 12. 0-0 0-0 13. Bf4 Qd8 14. Ne5 Nxe5 15. dxe5 Bxe2 16. Qxe2 e6 17. Rfe1 Rc4 18. Bg3 Qb6 19. Kh1 Rfc8 20. f3 Bh6 21. Bf2 Qa5 22. Bd4 R4c6 23. a3 Qc7 24. Rad1 Bf8 25. b4 Bh6 26. Rd3 Rc4 27. g3 Qc6 28. f4 Qa4 29. Qb2 b6 30. Rb1 Qb5 31. Rbd1 a5 32. Qf2 axb4 33. axb4 Bf8 34. Qe3 Qa4 35. Qg1 Qc6 36. Ra1 Ra8 37. Rdd1 Rxa1 38. Rxa1 Rxc3 39. b5 Qc4 40. Bxc3 Qxc3 41. Rc1 Qa5 42. Qf1 Bc5 43. Rc2 Qb4 44. g4 Qe4+ 45. Rg2 d4 46. f5 d3 47. fxe6 fxe6 48. h4 Be7 49. Qc1 Qxe5 50. h5 g5 51. Qc8+ Kg7 52. h6+ Kxh6 53. Qc1 Bc5 54. Qf1 Bd6 55. Rg3 Qe4+ 56. Rf3 d2 57. Qd3 Qxd3 58. Rxd3 Bf4 59. Kg2 Kg6 60. Kf3 Kf6 61. Ke4 e5 62. Rd7 Ke6 63. Rd5 Kf6 64. Rd6+ Kg7 65. Kf5 Kf7 66. Rd7+ Ke8 67. Rd5 Ke7 68. Rd3 Ke8 1/2-1/2

[Event "Washington State Invitational"]
[Site "Seattle"]
[Date "2011.02.12"]
[Round "1"]
[White "Mathews, Dan"]
[Black "Hosford, Michael J"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1820"]
[BlackElo "1859"]
[PlyCount "81"]
[EventDate "2011.02.12"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 d5 3. e5 Bf5 4. c3 Qd7 5. Bd3 f6 6. f4 h5 7. Nf3 h4 8. Be3 h3 9. g3 Nh6 10. Qe2 e6 11. Nbd2 Bxd3 12. Qxd3 f5 13. 0-0-0 Ng4 14. Nh4 Be7 15. Ndf3 0-0-0 16. Rd2 Rh6 17. Re1 Bxh4 18. Nxh4 Ne7 19. Bg1 Ng6 20. Nxg6 Rxg6 21. b3 Rh6 22. c4 Qe7 23. c5 c6 24. b4 Qc7 25. Rb2 Kd7 26. Ree2 Rhh8 27. b5 Rb8 28. b6 axb6 29. Rxb6 Ra8 30. Reb2 Rhb8 31. Qb3 Ra7 32. a4 Kc8 33. Qb4 Rba8 34. Ra2 Ra5 35. Qb3 Qb8 36. Rb2 R8a7 37. Rxc6+ Kd7 38. Rd6+ Ke7 39. c6 Qc8 40. Rc2 b5 41. Rd7+ 1-0

[Event "Washington State Invitational"]
[Site "Seattle"]
[Date "2011.02.12"]
[Round "2"]
[White "Xing, Casey"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "1887"]
[BlackElo "1820"]
[PlyCount "57"]
[EventDate "2011.02.12"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 0-0 6. e3 a6 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bg3 Nxc3 11. bxc3 Nd7 12. 0-0 b5 13. Bd3 Bb7 14. Qc2 g6 15. Qe2 c5 16. e4 c4 17. Bb1 a5 18. Nd2 Ba6 19. e5 Nb6 20. Qg4 b4 21. Ne4 Nd5 22. h4 bxc3 23. h5 Kg7 24. Nc5 Bxc5 25. dxc5 f5 26. exf6+ Qxf6 27. hxg6 hxg6 28. Rfe1 Kh7 29. Rxe6 1-0

[Event "Silverdale Beach Hotel Classic"]
[Site "Silverdale"]
[Date "2010.10.02"]
[Round "1"]
[White "Rupel, David G"]
[Black "Mathews, Dan"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "2109"]
[PlyCount "123"]
[EventDate "2010.10.02"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 g6 3. Nf3 Bg7 4. e3 Nf6 5. Nbd2 Bg4 6. Be2 Nbd7 7. h3 Bxf3 8. Bxf3 c6 9. Bf4 0-0 10. c4 Re8 11. 0-0 e5 12. dxe5 Nxe5 13. Be2 Nxc4 14. Nxc4 dxc4 15. Bxc4 Qxd1 16. Rfxd1 Rad8 17. Bc7 Rxd1+ 18. Rxd1 Rc8 19. Be5 b5 20. Be2 Nd5 21. Bxg7 Kxg7 22. Bxb5 Nxe3 23. Rc1 Nf5 24. Rxc6 Rxc6 25. Bxc6 Kf6 26. Bd5 Ke7 27. Kf1 f6 28. Ke1 Kd6 29. Bg8 h6 30. Bb3 Ke5 31. Ba4 Nd6 32. Bc6 f5 33. Kd2 Kd4 34. b3 g5 35. Kc2 h5 36. b4 h4 37. Bd7 f4 38. Kd2 Ne4+ 39. Ke2 Nc3+ 40. Kf3 Nxa2 41. Kg4 Nxb4 42. Kxg5 Ke5 43. Kxh4 Nd3 44. Kg5 Nxf2 45. Bc6 Kd6 46. Ba4 Ke5 47. h4 Ne4+ 48. Kg6 Ng3 49. Bd1 a5 50. h5 Nf5 51. h6 Nxh6 52. Kxh6 f3 53. Bxf3 Kf4 54. g4 Kxf3 55. g5 a4 56. g6 a3 57. g7 a2 58. g8Q a1Q 59. Qd5+ Ke2 60. Qe4+ Kd2 61. Qg2+ Kd3 62. Qg6+ 1/2-1/2

[Event "Washington op Premier"]
[Site "Redmond"]
[Date "2010.05.31"]
[Round "5"]
[White "Mathews, Dan"]
[Black "Leslie, Cameron D"]
[Result "0-1"]
[ECO "B04"]
[WhiteElo "1726"]
[BlackElo "1810"]
[PlyCount "29"]
[EventDate "2010.05.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d5 5. exd6 cxd6 6. Nc3 g6 7. Nf3 Bg7 8. Be3 0-0 9. h3 e5 10. Be2 exd4 11. Bxd4 Bxd4 12. Nxd4 a6 13. 0-0 Nc6 14. Qd2 Nxd4 15. Qxd4 0-1

[Event "Washington op Premier"]
[Site "Redmond"]
[Date "2010.05.31"]
[Round "5"]
[White "Mathews, Dan"]
[Black "Qu, Frank"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "1726"]
[BlackElo "1844"]
[PlyCount "120"]
[EventDate "2010.05.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d3 c5 2. e4 Nc6 3. Nc3 g6 4. Be3 d6 5. g3 Bg7 6. Nge2 Bg4 7. Bg2 Bxe2 8. Qxe2 Nf6 9. 0-0 0-0 10. h3 Nd7 11. f4 Nd4 12. Qf2 Rb8 13. Rab1 b5 14. Ne2 Nxe2+ 15. Qxe2 b4 16. Bd2 Qb6 17. Kh2 Qa6 18. Be3 Qxa2 19. Ra1 Qxb2 20. Rxa7 Rfd8 21. e5 dxe5 22. Bc6 exf4 23. gxf4 Nf6 24. Rxe7 Nd5 25. Bxd5 Rxd5 26. Bf2 b3 27. cxb3 Qxe2 28. Rxe2 Rxb3 29. Re8+ Bf8 30. Rc1 Kg7 31. Re3 Bd6 32. Rc4 g5 33. Kg2 Bxf4 34. Rf3 Rdxd3 35. Rxd3 Rxd3 36. Rxc5 Kg6 37. h4 h6 38. hxg5 hxg5 39. Be1 f6 40. Bc3 Rg3+ 41. Kf1 Bd6 42. Rc6 Be7 43. Kf2 Rd3 44. Ke2 Rd6 45. Rc8 f5 46. Rg8+ Kh5 47. Rg7 Bf6 48. Bxf6 Rxf6 49. Kf3 Ra6 50. Rh7+ Kg6 51. Rh1 Ra3+ 52. Ke2 g4 53. Rb1 Kg5 54. Kf2 Rf3+ 55. Kg2 Re3 56. Rf1 f4 57. Rc1 Re2+ 58. Kh1 Kh4 59. Kg1 Kg3 60. Ra1 f3 0-1

[Event "Washington op Premier"]
[Site "Redmond"]
[Date "2010.05.31"]
[Round "6"]
[White "Mathews, Dan"]
[Black "Zarate, Cristian"]
[Result "1/2-1/2"]
[ECO "B94"]
[WhiteElo "1726"]
[BlackElo "1874"]
[PlyCount "48"]
[EventDate "2010.05.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Qb6 7. Bxf6 gxf6 8. Nb3 h5 9. Nd5 Qd8 10. Qd4 Nc6 11. Qb6 Qxb6 12. Nxb6 Rb8 13. 0-0-0 Rg8 14. f3 Be6 15. Nd5 Bh6+ 16. Kb1 Kd7 17. c4 b5 18. c5 Bxd5 19. exd5 Ne5 20. c6+ Kc7 21. Nd4 Rbe8 22. a4 bxa4 23. g3 Be3 24. Be2 e6 1/2-1/2

[Event "Washington op"]
[Site "Redmond"]
[Date "2010.05.30"]
[Round "4"]
[White "Dixon, Dakota Ellis"]
[Black "Mathews, Dan"]
[Result "0-1"]
[ECO "E06"]
[WhiteElo "2036"]
[PlyCount "75"]
[EventDate "2010.05.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 e6 2. d4 d5 3. g3 Nf6 4. Bg2 Be7 5. c4 0-0 6. 0-0 c5 7. cxd5 Nxd5 8. Ne5 cxd4 9. Qxd4 Nc6 10. Nxc6 bxc6 11. Nc3 Bb7 12. Ne4 Qb6 13. Qa4 c5 14. Bg5 Bxg5 15. Nxg5 h6 16. Nf3 Bc6 17. Qa3 Qb4 18. Rac1 Bb5 19. Rxc5 Qxa3 20. bxa3 Bxe2 21. Re1 Ba6 22. Nd4 Bb7 23. Nxe6 fxe6 24. Rxe6 Rad8 25. Re5 Ne3 26. Rxe3 Rd1+ 27. Bf1 Ba6 28. f4 Rxf1+ 29. Kg2 Ra1 30. Rc7 Rxa2+ 31. Kh3 Bf1+ 32. Kg4 Rxh2 33. Kf3 Bg2+ 34. Kg4 Bd5 35. Rxa7 Bf7 36. Re5 h5+ 37. Kg5 h4 38. g4 0-1

[Event "Washington op"]
[Site "Redmond"]
[Date "2010.05.30"]
[Round "1"]
[White "Mathews, Dan"]
[Black "Perez, Ignacio"]
[Result "0-1"]
[ECO "A68"]
[BlackElo "2227"]
[PlyCount "78"]
[EventDate "2010.05.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Bd3 c5 7. d5 e6 8. Nf3 exd5 9. cxd5 c4 10. Bc2 b5 11. 0-0 b4 12. Ne2 Re8 13. Ng3 Na6 14. Be3 b3 15. axb3 cxb3 16. Bxb3 Nxe4 17. Nxe4 Rxe4 18. Bc1 Nb4 19. Kh1 Ba6 20. Rf2 Qb6 21. Ng5 Re7 22. Nh3 Nd3 23. Re2 Rxe2 24. Qxe2 Nxc1 25. Qxa6 Qxa6 26. Rxa6 Nxb3 27. Rxd6 a5 28. Rd7 a4 29. d6 Bxb2 30. Rc7 Rd8 31. d7 Nd4 32. Ng5 Ne6 33. Nxe6 fxe6 34. Rc8 Bf6 35. g4 Kf7 36. Rc4 a3 37. Ra4 Bb2 38. Kg2 Rxd7 39. Rxa3 Bxa3 0-1

[Event "Washington op Premier"]
[Site "Redmond"]
[Date "2010.05.30"]
[Round "3"]
[White "Mathews, Dan"]
[Black "Polak, Alex"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "1726"]
[PlyCount "50"]
[EventDate "2010.05.29"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bb5+ Bd7 7. Bxd7+ Nbxd7 8. 0-0 Be7 9. Kh1 0-0 10. f4 a6 11. Rf3 Nc5 12. e5 Nfe4 13. Nxe4 Nxe4 14. Be3 dxe5 15. fxe5 Bg5 16. Bxg5 Qxg5 17. Qd3 Qxe5 18. Raf1 f5 19. c3 Rf6 20. g3 Raf8 21. Kg2 Qd5 22. a3 Rd8 23. Qe3 h6 24. g4 Ng5 25. gxf5 exf5 1-0

[Event "Washington op"]
[Site "Redmond"]
[Date "2010.05.30"]
[Round "3"]
[White "Wilson, Matthew Spencer"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "B36"]
[PlyCount "128"]
[EventDate "2010.05.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nxd4 5. Qxd4 d6 6. c4 Nf6 7. Nc3 g6 8. Be3 Bg7 9. f3 0-0 10. Qd2 Be6 11. Rc1 b6 12. Be2 Rc8 13. b3 Nd7 14. 0-0 a6 15. Rfd1 f5 16. exf5 Bxf5 17. Qd5+ Kh8 18. g4 Nf6 19. Qb7 Rb8 20. Qxa6 Bc8 21. Qb5 Nd7 22. Nd5 e6 23. Nc3 Ne5 24. f4 Nf7 25. Ne4 e5 26. fxe5 Bxe5 27. Bd4 Bxd4+ 28. Rxd4 Qe7 29. Rf1 Bb7 30. Bf3 Ne5 31. Bg2 Rxf1+ 32. Kxf1 Bxe4 33. Rxe4 Qg5 34. Qb4 Qf6+ 35. Kg1 Nd3 36. Qd2 Nc5 37. Rf4 Qe5 38. Qd4 Re8 39. Qxe5+ Rxe5 40. Bd5 Nd3 41. Rf8+ Kg7 42. Rd8 Re1+ 43. Kg2 Re2+ 44. Kf3 Rxh2 45. g5 h5 46. gxh6+ Rxh6 47. Rd7+ Kf8 48. Rxd6 Rh2 49. Rxb6 Rxa2 50. Ke3 Ne5 51. Kd4 Nd7 52. Rxg6 Ke7 53. Rg7+ Kd6 54. c5+ Kc7 55. c6 Rd2+ 56. Kc4 Rc2+ 57. Kb4 Rxc6 58. Bxc6 Kxc6 59. Rxd7 Kxd7 60. Kb5 Kc7 61. Kc5 Kb7 62. Kb5 Ka7 63. Kc6 Ka6 64. b4 Ka7 1-0

[Event "Washington Challengers Cup"]
[Site "Seattle"]
[Date "2009.12.13"]
[Round "3"]
[White "Dietsch, Kristen S"]
[Black "Mathews, Dan"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "1855"]
[BlackElo "1781"]
[PlyCount "142"]
[EventDate "2009.12.12"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 b6 2. d3 Bb7 3. f4 d5 4. Qe2 dxe4 5. dxe4 e5 6. Nf3 exf4 7. Bxf4 Nf6 8. Nbd2 Be7 9. Qc4 Nc6 10. Bd3 0-0 11. a3 Nd7 12. e5 Nc5 13. Be4 Na5 14. Qe2 Nxe4 15. Nxe4 Qd5 16. Ned2 Nc6 17. Qc4 Qxc4 18. Nxc4 Nd8 19. 0-0-0 Bxf3 20. gxf3 Ne6 21. Be3 Rad8 22. f4 Rxd1+ 23. Rxd1 Rd8 24. Rg1 Bc5 25. Bxc5 Nxc5 26. Rd1 Rxd1+ 27. Kxd1 Ne6 28. f5 Nd4 29. Ne3 Nf3 30. Nd5 Nxe5 31. Nxc7 Nc4 32. b3 Ne3+ 33. Kd2 Nxf5 34. Nb5 a5 35. Kd3 Kf8 36. Nc7 Nd6 37. c3 f5 38. a4 h6 39. h4 Kf7 40. b4 axb4 41. cxb4 g5 42. hxg5 hxg5 43. a5 bxa5 44. bxa5 Nc8 45. Nb5 Ke6 46. a6 g4 47. Ke3 Ke5 48. a7 Nxa7 49. Nxa7 f4+ 50. Kf2 Ke4 51. Nb5 g3+ 52. Kf1 f3 53. Nc3+ Kd3 54. Nd1 Kd2 55. Nf2 Ke3 56. Nd1+ Kf4 57. Kg1 Ke4 58. Nf2+ Ke3 59. Nh3 Ke2 60. Nf4+ Ke1 61. Ng2+ Ke2 62. Nf4+ Ke3 63. Ng2+ Ke4 64. Nh4 Ke3 65. Nxf3 Kxf3 66. Kf1 Kg4 67. Kg2 Kh4 68. Kg1 Kh3 69. Kh1 Kg4 70. Kg2 Kf4 71. Kg1 Ke3 1/2-1/2

[Event "Washington Challengers Cup"]
[Site "Seattle"]
[Date "2009.12.13"]
[Round "4"]
[White "Mathews, Dan"]
[Black "Xing, Casey"]
[Result "1/2-1/2"]
[ECO "A03"]
[WhiteElo "1781"]
[BlackElo "1807"]
[PlyCount "110"]
[EventDate "2009.12.12"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 c5 3. e3 g6 4. Bb5+ Bd7 5. Bxd7+ Nxd7 6. 0-0 Bg7 7. Nc3 e6 8. d4 Ngf6 9. dxc5 Nxc5 10. Qd4 Qe7 11. b4 Ncd7 12. e4 dxe4 13. Nxe4 0-0 14. Ne5 Rfd8 15. Nxf6+ Nxf6 16. Qc5 Qxc5+ 17. bxc5 Nd7 18. Rb1 Nxc5 19. Ba3 Bf8 20. Nd3 Nxd3 21. Bxf8 Kxf8 22. cxd3 b6 23. Rb3 Rd7 24. Kf2 Rc8 25. Ke3 Rc2 26. Rf2 Rxf2 27. Kxf2 Ke7 28. Ke3 Rd5 29. g4 Kd7 30. d4 Ra5 31. a3 Kd6 32. Ke4 f5+ 33. gxf5 exf5+ 34. Kf3 Kd5 35. Ke3 b5 36. Rc3 a6 37. Rc5+ Kd6 38. Rc3 Ra4 39. Kd3 a5 40. Rb3 Kc6 41. Rc3+ Kd5 42. Rc5+ Kd6 43. Rxb5 Rxa3+ 44. Kc4 Ra4+ 45. Kd3 Ra2 46. h4 Rh2 47. Rxa5 Rxh4 48. Ra6+ Kd5 49. Ra5+ Kc6 50. d5+ Kd6 51. Ke3 Rh1 52. Kd4 Rd1+ 53. Kc4 Rc1+ 54. Kd4 Rd1+ 55. Kc4 Rc1+ 1/2-1/2

[Event "Washington Challengers Cup"]
[Site "Seattle"]
[Date "2009.12.12"]
[Round "1"]
[White "Mathews, Dan"]
[Black "McMillan, Charles Stuart"]
[Result "0-1"]
[ECO "A49"]
[WhiteElo "1781"]
[BlackElo "2063"]
[PlyCount "70"]
[EventDate "2009.12.12"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d4 d6 6. Re1 c5 7. dxc5 dxc5 8. Qxd8 Rxd8 9. Nc3 Nc6 10. a3 Bg4 11. Be3 Nd4 12. Bxd4 cxd4 13. Nd1 Nd5 14. h3 Be6 15. Rc1 Rac8 16. e3 dxe3 17. fxe3 Bh6 18. Kf2 Nf6 19. Nc3 Rxc3 20. bxc3 Ne4+ 21. Kg1 Nxc3 22. Nd4 Rxd4 23. exd4 Bxc1 24. Bxb7 Bxa3 25. Ra1 Bb2 26. Rxa7 Ne2+ 27. Kg2 Nxd4 28. Be4 f5 29. Bd3 Kf7 30. c4 Nc6 31. Rc7 Ne5 32. Be2 Bd4 33. c5 Bd5+ 34. Kh2 Bc6 35. Bc4+ Kf6 0-1

[Event "Washington Class-ch A"]
[Site "Redmond"]
[Date "2009.11.29"]
[Round "6"]
[White "Hosford, Michael J"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "1859"]
[BlackElo "1820"]
[PlyCount "23"]
[EventDate "2009.11.27"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 b6 2. g3 Bb7 3. Bg2 Nf6 4. 0-0 g6 5. d3 Bg7 6. Nbd2 0-0 7. e4 d5 8. e5 Nfd7 9. d4 c5 10. c3 cxd4 11. cxd4 e6 12. Re1 1-0

[Event "Washington State Invitational"]
[Site "Redmond"]
[Date "2009.02.16"]
[Round "9"]
[White "Mathews, Dan"]
[Black "Polich, Duane"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "1839"]
[BlackElo "1913"]
[PlyCount "71"]
[EventDate "2009.02.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Bc4 c6 5. c3 Qc7 6. Bf4 e5 7. dxe5 dxe5 8. Ng5 exf4 9. Nxf7 Nh6 10. Nxh8 Bxh8 11. Nd2 Nd7 12. Nf3 Ne5 13. Nxe5 Bxe5 14. h4 Bd7 15. Qb3 0-0-0 16. Rd1 Re8 17. f3 b5 18. Be2 Qb6 19. Qc2 Be6 20. b4 Ng8 21. a3 Nf6 22. c4 a6 23. c5 Qc7 24. 0-0 Nh5 25. Rd2 Qe7 26. Rfd1 Qxh4 27. Rd6 Bxd6 28. Rxd6 Qe1+ 29. Kh2 Ng3 30. Rxc6+ Kb7 31. Rb6+ Ka7 32. Rxa6+ Kxa6 33. Qa4+ Kb7 34. Qxb5+ Kc7 35. Qb6+ Kd7 36. Qd6+ 1-0

[Event "Washington State Invitational"]
[Site "Redmond"]
[Date "2009.02.15"]
[Round "8"]
[White "Mathews, Dan"]
[Black "Kalina, Chris"]
[Result "0-1"]
[ECO "B70"]
[WhiteElo "1839"]
[BlackElo "1945"]
[PlyCount "154"]
[EventDate "2009.02.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f3 Bg7 7. Bb5+ Nbd7 8. Be3 0-0 9. h4 a6 10. Bxd7 Bxd7 11. g4 Qa5 12. Qd2 Rfc8 13. h5 Rc4 14. hxg6 fxg6 15. Nb3 Qc7 16. Bh6 Bxh6 17. Rxh6 Rc8 18. g5 Rxc3 19. bxc3 Nh5 20. 0-0-0 Qxc3 21. Qxc3 Rxc3 22. Rd3 Rc7 23. Kb2 b5 24. Rd4 Kg7 25. c3 Be6 26. Rd2 Bc4 27. Rh2 d5 28. Nd4 dxe4 29. fxe4 e6 30. Nf3 Rc5 31. Rd2 Rxg5 32. Rxh7+ Kxh7 33. Nxg5+ Kh6 34. Nf3 Nf6 35. e5 Ne4 36. Rh2+ Kg7 37. Rh4 Bd5 38. Nd4 g5 39. Nxe6+ Kg6 40. Nxg5 Kxg5 41. Rh7 Kf5 42. Ra7 Nc5 43. Ka3 Kxe5 44. Kb4 Kd6 45. Rh7 Bxa2 46. Rh6+ Be6 47. Rh5 Nb7 48. Rxb5 axb5 49. Kxb5 Nc5 50. c4 Nd3 51. c5+ Nxc5 52. Kb4 Ne4 53. Kb5 Bd5 54. Kb4 Ke5 55. Ka3 Kd4 56. Kb4 Bc4 57. Ka3 Kc3 58. Ka4 Nf6 59. Ka5 Nd5 60. Ka4 Nb6+ 61. Ka5 Nd7 62. Ka4 Bd5 63. Ka5 Bc6 64. Ka6 Kb4 65. Ka7 Kc5 66. Ka6 Nf6 67. Ka5 Nd5 68. Ka6 Bd7 69. Ka5 Kc4 70. Ka6 Kb4 71. Kb7 Kb5 72. Ka7 Bc8 73. Ka8 Kb6 74. Kb8 Bg4 75. Ka8 Nc7+ 76. Kb8 Na6+ 77. Ka8 Bf3# 0-1

[Event "Washington State Invitational"]
[Site "Redmond"]
[Date "2009.02.15"]
[Round "7"]
[White "Prentice, Gregory"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "1799"]
[BlackElo "1839"]
[PlyCount "57"]
[EventDate "2009.02.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 g6 3. c4 c6 4. Nc3 Bg7 5. e3 Nf6 6. h3 0-0 7. Bd2 Bf5 8. Qb3 b6 9. Be2 dxc4 10. Bxc4 Ne4 11. 0-0 b5 12. Be2 a5 13. Nxe4 Bxe4 14. Rac1 Bd5 15. Qc2 f5 16. Ne5 Bxe5 17. dxe5 e6 18. b3 Nd7 19. Qb2 Qg5 20. e4 f4 21. exd5 Nxe5 22. dxc6 Qf5 23. f3 h5 24. c7 g5 25. Bc3 g4 26. fxg4 hxg4 27. Bxe5 gxh3 28. Rxf4 h2+ 29. Kh1 1-0

[Event "Washington State Invitational"]
[Site "Redmond"]
[Date "2009.02.14"]
[Round "6"]
[White "Wang, Michael"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "A26"]
[WhiteElo "1932"]
[BlackElo "1839"]
[PlyCount "67"]
[EventDate "2009.02.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 g6 4. Bg2 Bg7 5. d3 0-0 6. e4 Nc6 7. Nge2 d6 8. 0-0 Be6 9. h3 Qd7 10. Kh2 Ne7 11. Nd5 Bxd5 12. cxd5 c6 13. dxc6 bxc6 14. f4 exf4 15. gxf4 d5 16. Qc2 Rac8 17. Be3 Ne8 18. Bc5 Nd6 19. Ng3 f5 20. e5 Nf7 21. e6 Qxe6 22. Rae1 Ne5 23. d4 h6 24. dxe5 g5 25. Bxe7 Qxe7 26. Nxf5 Rxf5 27. Qxf5 Rf8 28. Qg6 Kh8 29. Qd6 Qxd6 30. exd6 Rd8 31. Re6 gxf4 32. Rxf4 Bxb2 33. Rf7 Ba3 34. d7 1-0

[Event "Washington State Invitational"]
[Site "Redmond"]
[Date "2009.02.08"]
[Round "4"]
[White "Mathews, Dan"]
[Black "Pazderic, Nicola"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1839"]
[BlackElo "1856"]
[PlyCount "152"]
[EventDate "2009.02.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Bg4 3. Ne5 Bf5 4. e3 Nd7 5. Nxd7 Qxd7 6. Bd3 0-0-0 7. Nc3 e6 8. Bxf5 exf5 9. Qd3 Nf6 10. Bd2 Ne4 11. f3 Nxd2 12. Qxd2 c6 13. 0-0-0 Bb4 14. Qd3 Rde8 15. Rhe1 g5 16. a3 Bd6 17. g3 h5 18. e4 dxe4 19. fxe4 Qe6 20. e5 Be7 21. d5 cxd5 22. Nxd5 Bd8 23. Qc3+ Qc6 24. Qd4 Kb8 25. Rd3 h4 26. Rc3 Qd7 27. Rd1 Qe6 28. Nf6 Bxf6 29. exf6 hxg3 30. hxg3 Rc8 31. Kb1 Rxc3 32. Qxc3 Rc8 33. Qd4 a6 34. Qd7 Rc6 35. Qd8+ Qc8 36. Qxc8+ Kxc8 37. Re1 Rxf6 38. Re7 f4 39. gxf4 Rxf4 40. Kc1 g4 41. Kd2 f5 42. Ke3 Rf3+ 43. Kd4 Rf2 44. c4 Rxb2 45. Rf7 Rf2 46. c5 g3 47. Rf8+ Kd7 48. Rf7+ Ke6 49. Rxb7 g2 50. Rg7 f4 51. c6 Rc2 52. Ke4 Kf6 53. Rg8 Rxc6 54. Rxg2 Rc4+ 55. Kd5 Ra4 56. Rg8 Kf5 57. Rf8+ Kg4 58. Rg8+ Kf3 59. Rh8 Kf2 60. Rh4 Kg3 61. Rh8 f3 62. Rg8+ Rg4 63. Rf8 f2 64. Rxf2 Kxf2 65. Kc5 Ra4 66. Kd5 Rxa3 67. Kc4 a5 68. Kb5 Ke3 69. Kb6 Kd4 70. Kb5 Kd5 71. Kb6 Rb3+ 72. Kxa5 Kc5 73. Ka4 Rb8 74. Ka3 Kc4 75. Ka2 Kc3 76. Ka1 Kc2 0-1

[Event "Washington State Invitational"]
[Site "Redmond"]
[Date "2009.02.08"]
[Round "3"]
[White "Watts, Peter Owen"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1935"]
[BlackElo "1839"]
[PlyCount "125"]
[EventDate "2009.02.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 e6 2. c4 Be7 3. e4 d5 4. exd5 exd5 5. Nc3 Nf6 6. cxd5 Nxd5 7. Qf3 Nxc3 8. bxc3 0-0 9. Bc4 Bf6 10. Ne2 Nc6 11. 0-0 Ne7 12. Ba3 c6 13. Rfe1 Re8 14. Nf4 Nf5 15. Nh5 Be6 16. Rxe6 Rxe6 17. Qxf5 g6 18. Nxf6+ Rxf6 19. Qe5 Rf5 20. Qe7 Qxe7 21. Bxe7 Re8 22. Bd6 b5 23. Bd3 Rd5 24. Bc5 a6 25. Kf1 f5 26. c4 Rd7 27. cxb5 axb5 28. a4 Ra8 29. a5 Ra6 30. Bb6 Rb7 31. Rc1 Rbxb6 32. axb6 Rxb6 33. Rb1 Kf7 34. d5 cxd5 35. Rxb5 Rd6 36. Rb7+ Kf6 37. Rxh7 Ke5 38. Rc7 Kd4 39. Ke2 Rb6 40. Kd2 Rb2+ 41. Bc2 Rb6 42. h4 Ke5 43. h5 gxh5 44. Rf7 Rh6 45. Rxf5+ Ke6 46. Rg5 Rh8 47. Bb3 h4 48. Rxd5 Kf6 49. Rd6+ Kg5 50. Be6 Rf8 51. Ke3 Re8 52. f4+ Kf6 53. f5 Rh8 54. Kf4 h3 55. g4 Ke7 56. Rd7+ Ke8 57. Rc7 Rh6 58. g5 Rh4+ 59. Kg3 h2 60. f6 Rh3+ 61. Kg4 Rh4+ 62. Kf5 Rf4+ 63. Kxf4 1-0

[Event "Washington State Invitational"]
[Site "Redmond"]
[Date "2009.02.07"]
[Round "1"]
[White "Kolde, Sterling"]
[Black "Mathews, Dan"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "1822"]
[BlackElo "1839"]
[PlyCount "84"]
[EventDate "2009.02.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 Nf6 4. cxd5 exd5 5. Qc2 c6 6. Bg5 Be7 7. e3 0-0 8. Nf3 b5 9. Bd3 h6 10. h4 a5 11. 0-0-0 Na6 12. Qd2 b4 13. Na4 Ne4 14. Bxe7 Qxe7 15. Qc2 Bd7 16. Kb1 b3 17. axb3 Nb4 18. Qe2 Nxd3 19. Rxd3 Bf5 20. Ka2 Nxf2 21. Qxf2 Bxd3 22. Ne5 Bb5 23. Nc5 a4 24. b4 Ra7 25. g4 Qd6 26. h5 Bc4+ 27. Ka3 Re7 28. g5 Rfe8 29. Rh3 Rxe5 30. dxe5 Rxe5 31. gxh6 Qxh6 32. Kxa4 Re8 33. Ka3 Ra8+ 34. Na4 Qe6 35. b3 Qxh3 36. bxc4 dxc4 37. Qe2 Qe6 38. Qd2 Qe4 39. Kb2 Rxa4 40. h6 Qe5+ 41. Kb1 Qa1+ 42. Kc2 Ra2# 0-1

[Event "Washington State Invitational"]
[Site "Redmond"]
[Date "2009.02.07"]
[Round "2"]
[White "Mathews, Dan"]
[Black "Chang, Eddie Cheng Ho"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "1839"]
[BlackElo "1832"]
[PlyCount "65"]
[EventDate "2009.02.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. Nf3 c5 2. d4 cxd4 3. Nxd4 e5 4. Nb3 d5 5. e3 Nc6 6. a3 Nf6 7. c4 d4 8. exd4 exd4 9. Bd3 Be7 10. 0-0 0-0 11. h3 Be6 12. Bf4 Bd6 13. Bxd6 Qxd6 14. N1d2 Ne5 15. Qc2 Rac8 16. Rac1 Qd7 17. f4 Nxd3 18. Qxd3 Bf5 19. Qxd4 Qc6 20. Nf3 Rcd8 21. Qc5 Qe6 22. Ng5 Qc8 23. Qxc8 Rxc8 24. Rfd1 Rfe8 25. Nd4 Be4 26. b4 h6 27. Nxe4 Rxe4 28. c5 Rxf4 29. b5 Ne4 30. c6 bxc6 31. bxc6 Ng3 32. Rc2 Rc7 33. Nb5 1-0

[Event "Washington op"]
[Site "Seattle"]
[Date "2007.05.27"]
[Round "4"]
[White "Pupols, Viktors"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "A81"]
[WhiteElo "2209"]
[PlyCount "153"]
[EventDate "2007.05.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nd2 Be7 5. e4 fxe4 6. Nxe4 0-0 7. f4 Nxe4 8. Bxe4 d5 9. Bd3 c5 10. Nf3 c4 11. Be2 Nc6 12. 0-0 Bf6 13. c3 Bd7 14. b3 b5 15. a4 a6 16. Ba3 Re8 17. Bc5 Be7 18. b4 Bxc5 19. bxc5 Qf6 20. Qb1 Reb8 21. axb5 axb5 22. Rxa8 Rxa8 23. Bd1 Rb8 24. Bc2 g6 25. h4 b4 26. Ne5 Be8 27. Qb2 b3 28. Bb1 Qe7 29. Qe2 Nxe5 30. Qxe5 Rb7 31. Re1 Bf7 32. Kg2 Qc7 33. Qe3 Qa5 34. g4 Qd8 35. Kh3 b2 36. Bc2 Qb8 37. Rb1 Ra7 38. h5 Ra1 39. hxg6 hxg6 40. Kg2 Rxb1 41. Bxb1 Qb3 42. Qd2 Kg7 43. Kf2 Be8 44. Qe1 Bf7 45. Ke3 Qb8 46. Qf2 Qh8 47. Qg2 Qh4 48. Kd2 Qh6 49. g5 Qh4 50. Kc2 Qxf4 51. Kxb2 Qb8+ 52. Kc1 Qf4+ 53. Qd2 Qg3 54. Kb2 Qc7 55. Qe2 Qb7+ 56. Kc1 Qc6 57. Bc2 Qc7 58. Qf3 Qd8 59. Qf4 Qe7 60. Qe5+ Kg8 61. Kd2 Be8 62. Bd1 Qf7 63. Bg4 Qf2+ 64. Be2 Qf7 65. Ke3 Qe7 66. Kf4 Qf7+ 67. Kg3 Qe7 68. Kg4 Bd7 69. Bf3 Bc6 70. Kf4 Kh7 71. Qf6 Qc7+ 72. Ke3 Qa5 73. Qf7+ Kh8 74. Qf8+ Kh7 75. Qh6+ Kg8 76. Qxg6+ Kh8 77. Qf6+ 1-0

[Event "Reno Far West op"]
[Site "Reno"]
[Date "2006.04.08"]
[Round "4"]
[White "Straver, Edwin"]
[Black "Mathews, Dan"]
[Result "0-1"]
[ECO "A83"]
[WhiteElo "2151"]
[BlackElo "1819"]
[PlyCount "75"]
[EventDate "2006.04.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 g6 3. e4 fxe4 4. Nc3 d5 5. Qd2 Bg7 6. f3 Nf6 7. 0-0-0 0-0 8. h4 Nc6 9. Bh6 exf3 10. Nxf3 Bg4 11. Bxg7 Kxg7 12. Re1 Ne4 13. Nxe4 dxe4 14. Rxe4 Bf5 15. Re1 Qd5 16. b3 Qd6 17. Kb2 h5 18. c3 Bg4 19. Ng5 Rf6 20. Qe3 Raf8 21. Ne4 Re6 22. Nxd6 Rxe3 23. Ne8+ Rxe8 24. Rxe3 e6 25. Bb5 Rf8 26. Rf1 Ne7 27. Rxf8 Kxf8 28. Bd3 Kf7 29. c4 c6 30. a4 Bf5 31. Kc3 Bxd3 32. Kxd3 Nf5 33. Rf3 Ke7 34. g3 a6 35. Ke4 b5 36. cxb5 cxb5 37. a5 Kd6 38. b4 0-1

[Event "Reno Far West op"]
[Site "Reno"]
[Date "2006.04.07"]
[Round "2"]
[White "Vigorito, David"]
[Black "Mathews, Dan"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2430"]
[BlackElo "1819"]
[PlyCount "43"]
[EventDate "2006.04.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 0-0 6. e3 b6 7. cxd5 Nxd5 8. Bg3 Nxc3 9. bxc3 Nd7 10. Bd3 Bb7 11. Qc2 g6 12. e4 c5 13. 0-0 Rc8 14. Qe2 Bf6 15. Rfe1 Re8 16. Rad1 c4 17. Bxc4 Bxe4 18. Ba6 Bd5 19. c4 Bxf3 20. Qxf3 Nf8 21. Bxc8 Qxc8 22. Qxf6 1-0

