[Event "W-ch WS/O/1465 email"]
[Site "ICCF email"]
[Date "2022.08.31"]
[Round "?"]
[White "Abad, Jose Miguel"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "1702"]
[BlackElo "1813"]
[PlyCount "91"]
[EventDate "2022.??.??"]
[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 g6 3. Nc3 Bg7 4. e4 0-0 5. f3 c5 6. dxc5 b6 7. Be3 bxc5 8. Bxc5 d6 9. Be3 Nbd7 10. Qd2 Bb7 11. Be2 Ne5 12. Rd1 Rc8 13. b3 e6 14. Qxd6 Qxd6 15. Rxd6 Ne8 16. Rd1 Nxf3+ 17. Bxf3 Bxc3+ 18. Ke2 Nf6 19. e5 Ne4 20. Bxe4 Bxe4 21. Nf3 h5 22. Rd7 a6 23. Rc1 Bb2 24. Rcd1 Bc6 25. Re7 Rce8 26. Bc5 Rxe7 27. Bxe7 Re8 28. Bf6 Kf8 29. g3 Ba3 30. Bd8 Kg7 31. h4 Bc5 32. Ng5 Kg8 33. Bc7 Rc8 34. Bd6 Bb6 35. Rf1 Be8 36. Kd3 Kg7 37. Ne4 Bc6 38. Ng5 Be8 39. Kc3 a5 40. Be7 Ra8 41. Ne4 Ra7 42. Bc5 Bxc5 43. Nxc5 Bc6 44. Rf6 Rc7 45. Rxe6 fxe6 46. Nxe6+ 1-0

[Event "W-ch WS/O/1465 email"]
[Site "ICCF email"]
[Date "2022.08.31"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Beckett, Phillip J"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "1813"]
[BlackElo "1834"]
[PlyCount "76"]
[EventDate "2022.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 c6 5. Bg2 Nbd7 6. 0-0 Bd6 7. Nc3 0-0 8. Nd2 Re8 9. e4 dxe4 10. Ndxe4 Nxe4 11. Nxe4 Be7 12. Be3 Nf6 13. Rc1 Nxe4 14. Bxe4 g6 15. Qa4 Bf6 16. Rcd1 Bg7 17. c5 a5 18. h4 h6 19. Bf3 g5 20. hxg5 hxg5 21. g4 f5 22. Qc2 Qf6 23. Kg2 a4 24. Rh1 e5 25. dxe5 Rxe5 26. Bd4 fxg4 27. Be4 Be6 28. Bxe5 Qxe5 29. Bh7+ Kf8 30. Rhe1 Qf6 31. Rd6 Re8 32. Kg1 Kf7 33. Rdxe6 Rxe6 34. Qc4 Ke7 35. Rxe6+ Qxe6 36. Qxa4 Qe1+ 37. Kg2 g3 38. fxg3 Qe2+ 1/2-1/2

[Event "W-ch WS/O/1465 email"]
[Site "ICCF email"]
[Date "2022.08.31"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Croker, Barry"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "1813"]
[BlackElo "1518"]
[PlyCount "53"]
[EventDate "2022.??.??"]
[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 e5 3. dxe5 Ng4 4. Bf4 Nc6 5. Nf3 Bb4+ 6. Nc3 Bxc3+ 7. bxc3 Qe7 8. Qd5 f6 9. exf6 Nxf6 10. Qd3 d6 11. g3 0-0 12. Bg2 Re8 13. 0-0 Qe4 14. Nd4 Qxd3 15. exd3 Nxd4 16. cxd4 Bf5 17. Bxb7 Rab8 18. Bc6 Bxd3 19. Rfd1 Be2 20. Re1 Re7 21. c5 d5 22. Be5 Bf3 23. Re3 Be4 24. Rb3 Rxb3 25. axb3 Nd7 26. Bxd7 Rxd7 27. c6 1-0

[Event "W-ch WS/O/1465 email"]
[Site "ICCF email"]
[Date "2022.08.31"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Schroeder, Christopher"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1813"]
[BlackElo "1814"]
[PlyCount "96"]
[EventDate "2022.??.??"]
[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. Bg5 d5 3. e3 c5 4. Bxf6 gxf6 5. dxc5 Nc6 6. Nf3 e5 7. c4 d4 8. exd4 e4 9. Nfd2 Qxd4 10. Nc3 Qe5 11. Nb3 Be6 12. Be2 a5 13. a4 Rd8 14. Qc1 Rg8 15. g3 f5 16. Nd5 Rxd5 17. cxd5 Bxd5 18. Ra3 Qe6 19. Na1 Bh6 20. Qd1 Ke7 21. Nc2 f4 22. gxf4 Bxf4 23. Ne3 Rd8 24. Nxd5+ Rxd5 25. Qb3 Bd2+ 26. Kf1 e3 27. Rg1 Qf5 28. Rg2 Nd4 29. Qd3 Qf4 30. Rc3 Rg5 31. Rc4 Rxg2 32. Kxg2 Qxf2+ 33. Kh3 Qxe2 34. Qxd4 Qf1+ 35. Kh4 Qe1+ 36. Kg4 Qe2+ 37. Kh3 Qf3+ 38. Kh4 Qf2+ 39. Kh3 Qf3+ 40. Kh4 Be1+ 41. Kg5 h6+ 42. Kxh6 Qf6+ 43. Qxf6+ Kxf6 44. Re4 Kf5 45. Re8 Kf4 46. Kg7 Kf3 47. Kxf7 e2 48. Re7 Bf2 0-1

[Event "W-ch WS/O/1465 email"]
[Site "ICCF email"]
[Date "2022.08.31"]
[Round "?"]
[White "Lagergren, Henry"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "1612"]
[BlackElo "1813"]
[PlyCount "81"]
[EventDate "2022.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nc6 3. c4 e6 4. Nc3 Be7 5. Bf4 Nf6 6. e3 0-0 7. Rc1 Ne4 8. a3 a5 9. Bd3 Nxc3 10. Rxc3 dxc4 11. Rxc4 Bd6 12. Bg3 Ne7 13. e4 Bxg3 14. hxg3 b6 15. Ne5 f6 16. Qh5 fxe5 17. Qxh7+ Kf7 18. Be2 Ke8 19. Qxg7 Rg8 20. Qf6 Rf8 21. Qxe5 Qd6 22. Rxc7 Qxe5 23. dxe5 Kd8 24. Rc1 Bd7 25. f4 Ng6 26. Kd2 Rh8 27. Rxh8+ Nxh8 28. Rh1 Ng6 29. Rh6 Nf8 30. f5 Kc7 31. Rf6 exf5 32. exf5 Re8 33. g4 Ba4 34. Rf7+ Kd8 35. Bc4 Nd7 36. e6 Ne5 37. b3 Re7 38. Kc3 Be8 39. Rxe7 Kxe7 40. g5 Kd6 41. a4 1-0

[Event "W-ch WS/O/1465 email"]
[Site "ICCF email"]
[Date "2022.08.31"]
[Round "?"]
[White "Meller, Edwin"]
[Black "Calkins, Donn"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1712"]
[BlackElo "1813"]
[PlyCount "78"]
[EventDate "2022.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 c6 2. d4 d6 3. Nc3 Nf6 4. Nf3 Bg4 5. h3 Bh5 6. g4 Bg6 7. Qe2 d5 8. e5 Ne4 9. e6 fxe6 10. Bg2 Nd7 11. 0-0 Nxc3 12. bxc3 e5 13. c4 e6 14. cxd5 exd5 15. Bg5 Be7 16. Bxe7 Qxe7 17. Nxe5 Nxe5 18. dxe5 h5 19. f4 hxg4 20. hxg4 Be4 21. Bxe4 dxe4 22. Qxe4 0-0-0 23. Rad1 Rxd1 24. Rxd1 Qh4 25. Qg2 a5 26. Kf1 Qh6 27. g5 Qe6 28. Kf2 Qxa2 29. Qe4 Qe6 30. Rh1 Rxh1 31. Qxh1 g6 32. Qh8+ Kc7 33. Ke3 b5 34. Qf6 Qh3+ 35. Kd2 Qg2+ 36. Ke3 Qh3+ 37. Kd2 Qg2+ 38. Kd3 Qg3+ 39. Kd2 Qg2+ 1/2-1/2

[Event "W-ch WS/O/1420 email"]
[Site "ICCF email"]
[Date "2022.02.25"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Kunze, Juergen"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "1790"]
[PlyCount "80"]
[EventDate "2022.??.??"]
[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 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 e5 6. Bxc6 dxc6 7. h3 Ne7 8. d3 0-0 9. Be3 b6 10. Nc3 f5 11. b3 f4 12. Bd2 Bf6 13. a4 h5 14. a5 b5 15. Qe2 g5 16. Nh2 Qe8 17. Nd1 Kg7 18. Bc3 Qf7 19. f3 Ng6 20. Nf2 a6 21. Rad1 Be6 22. Nf1 Kh7 23. Nd2 Rg8 24. Ra1 Rg7 25. Rad1 Rag8 26. Nf1 g4 27. hxg4 Bh4 28. Bb2 Qe7 29. Rd2 hxg4 30. fxg4 Nh8 31. Nh2 Nf7 32. Rf1 Bg3 33. Nf3 Bxg4 34. Nxg4 Rxg4 35. Rfd1 Qe6 36. c3 Qh6 37. Ba3 b4 38. cxb4 Rh4 39. Nxh4 Qxh4 40. Qf3 Ng5 0-1

[Event "W-ch WS/O/1420 email"]
[Site "ICCF email"]
[Date "2022.02.25"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Sijses, Wim"]
[Result "1/2-1/2"]
[ECO "A93"]
[WhiteElo "1790"]
[BlackElo "1543"]
[PlyCount "58"]
[EventDate "2022.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. d4 f5 2. g3 d5 3. Bg2 Nf6 4. c4 e6 5. Nf3 Be7 6. 0-0 0-0 7. b3 b6 8. Bb2 Bb7 9. Nc3 c5 10. Ne5 Nc6 11. Nxc6 Bxc6 12. cxd5 exd5 13. e3 Ne4 14. Rc1 Rc8 15. dxc5 bxc5 16. Nxe4 dxe4 17. Re1 Bb5 18. Bf1 Bxf1 19. Kxf1 Qd3+ 20. Qe2 Qxe2+ 21. Rxe2 Rcd8 22. Rec2 Rd5 23. Ba3 Rc8 24. b4 c4 25. Rxc4 Rxc4 26. Rxc4 Rd2 27. Rc7 Rxa2 28. Rxe7 Rxa3 29. Re5 g6 1/2-1/2

[Event "W-ch WS/O/1420 email"]
[Site "ICCF email"]
[Date "2022.02.25"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Vah, Denis"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1790"]
[PlyCount "37"]
[EventDate "2022.??.??"]
[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. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 e6 6. Be3 cxd4 7. cxd4 Nc6 8. a3 Bd6 9. Nc3 Qa5 10. Bd3 0-0 11. 0-0 Qh5 12. h3 h6 13. Ne4 Nxe4 14. Bxe4 Ne7 15. Ne5 Qxd1 16. Rfxd1 Rd8 17. Rac1 Nd5 18. Bd2 Bxe5 19. dxe5 1-0

[Event "W-ch WS/O/1420 email"]
[Site "ICCF email"]
[Date "2022.02.25"]
[Round "?"]
[White "De la Cuadra Izquierdo, Mario"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1351"]
[BlackElo "1790"]
[PlyCount "108"]
[EventDate "2022.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. Bc4 Nb6 4. Bb3 c5 5. c3 c4 6. Bc2 d6 7. exd6 Qxd6 8. b3 Nc6 9. bxc4 Nxc4 10. Qe2 Be6 11. d3 Nb6 12. Ba3 Qd7 13. Nf3 g6 14. 0-0 Bg7 15. Re1 0-0 16. Bc5 Rfd8 17. Bxb6 axb6 18. d4 Ra5 19. Bd3 Bxd4 20. Bc4 Bxc4 21. Qxc4 b5 22. Qb3 Be5 23. Nxe5 Nxe5 24. Na3 Qf5 25. Rad1 Nd3 26. Rf1 Rd7 27. Nc2 Nc5 28. Qb1 Rxd1 29. Qxd1 Rxa2 30. Qd8+ Kg7 31. Nd4 Qe5 32. Nxb5 Ne4 33. Qd4 Qxd4 34. cxd4 Ra5 35. Nc7 b5 36. Nd5 e6 37. Ne3 b4 38. f4 b3 39. Nc4 Ra4 40. Rc1 Ra2 41. Re1 f5 42. Rb1 b2 43. Nxb2 Nc3 44. Re1 Rxb2 45. Rxe6 Ne2+ 46. Kf1 Nxf4 47. Re7+ Kf6 48. Rxh7 Nxg2 49. h4 f4 50. h5 Ne3+ 51. Ke1 f3 52. Rf7+ Kxf7 53. hxg6+ Kxg6 54. d5 f2# 0-1

[Event "W-ch WS/O/1420 email"]
[Site "ICCF email"]
[Date "2022.02.25"]
[Round "?"]
[White "Grau Ribas, Jose Maria"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "1856"]
[BlackElo "1790"]
[PlyCount "71"]
[EventDate "2022.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Bg4 10. Be2 Bxf3 11. gxf3 Qd7 12. Qd3 0-0-0 13. 0-0-0 f6 14. f4 Bb4 15. Ne4 f5 16. Ng5 h6 17. Nxe6 Nxe5 18. fxe5 Qxe6 19. Bf2 Rhf8 20. a3 Be7 21. Qc3 g5 22. d5 Qg6 23. Bd3 Qg7 24. Rhe1 f4 25. Bc2 g4 26. a4 Kb8 27. a5 Nc8 28. a6 b6 29. c5 h5 30. d6 Bg5 31. Qb3 f3+ 32. Kb1 h4 33. Be4 Qxe5 34. Bd4 Qe8 35. dxc7+ Kxc7 36. cxb6+ 1-0

[Event "W-ch WS/O/1420 email"]
[Site "ICCF email"]
[Date "2022.02.25"]
[Round "?"]
[White "Skoumal, Radek"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1359"]
[BlackElo "1790"]
[PlyCount "36"]
[EventDate "2022.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Bg7 3. g3 Nf6 4. Bg2 0-0 5. Nc3 d5 6. 0-0 c6 7. Bg5 Nbd7 8. Re1 h6 9. Ne5 hxg5 10. Nxd7 Bxd7 11. e4 Bg4 12. Bf3 Bxf3 13. Qxf3 dxe4 14. Nxe4 Qxd4 15. Nxf6+ Bxf6 16. c3 Qd2 17. Qe2 Rad8 18. Qxd2 Rxd2 0-1

[Event "W-ch WS/O/1407 email"]
[Site "ICCF email"]
[Date "2022.01.10"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Lagergren, Henry"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1790"]
[BlackElo "1772"]
[PlyCount "112"]
[EventDate "2022.??.??"]
[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. f3 e6 4. Be3 Be7 5. Bd3 c5 6. c3 Bd7 7. Ne2 0-0 8. 0-0 Nc6 9. Nd2 a5 10. dxc5 dxc5 11. Ng3 Ne5 12. Nc4 Nxd3 13. Qxd3 Qc7 14. Qd2 Bb5 15. Bf4 Qd7 16. Qxd7 Nxd7 17. Rfd1 Rfd8 18. Ne3 Rac8 19. Bd6 Kf8 20. c4 Bc6 21. e5 Bxd6 22. exd6 Nf6 23. Ng4 Nxg4 24. fxg4 f6 25. Rd2 Kf7 26. g5 f5 27. Rad1 Rd7 28. Nh5 e5 29. Re2 Kg6 30. Ng3 Re8 31. h4 h5 32. Rde1 f4 33. Ne4 Bxe4 34. Rxe4 Kf5 35. g3 fxg3 36. Kg2 Rxd6 37. Kxg3 Rd4 38. R4e3 Rxc4 39. Rf3+ Ke6 40. Rfe3 Kd5 41. Rd3+ Kc6 42. b3 Rg4+ 43. Kh3 e4 44. Rg3 Rf4 45. Rge3 b5 46. Kg3 Rg4+ 47. Kh3 c4 48. bxc4 bxc4 49. Rc3 Kd5 50. Rd1+ Kc5 51. a4 e3 52. Re1 e2 53. Rc2 Rge4 54. g6 Re3+ 55. Kg2 c3 56. Kf2 Kc4 0-1

[Event "W-ch WS/O/1407 email"]
[Site "ICCF email"]
[Date "2022.01.10"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Misere, Heinz"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "1790"]
[BlackElo "1540"]
[PlyCount "79"]
[EventDate "2022.??.??"]
[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. g3 d5 4. Bg2 Nc6 5. Nf3 Bb4+ 6. Bd2 Be7 7. 0-0 dxc4 8. Qa4 0-0 9. Qxc4 Ne4 10. e3 Bd7 11. Nc3 Nxd2 12. Nxd2 Bb4 13. a3 Be7 14. Rac1 Rc8 15. Rfd1 a6 16. Nce4 Na5 17. Qc2 b6 18. Bf1 Bb5 19. Bxb5 axb5 20. b4 Nb7 21. Nf3 Qd5 22. Ne5 Nd6 23. Nc6 Bd8 24. Nxd6 cxd6 25. e4 Qh5 26. Qd3 d5 27. e5 f6 28. Qxb5 fxe5 29. Nxe5 Bg5 30. Rxc8 Rxc8 31. Re1 Qe8 32. Qxb6 Bf6 33. Nf3 Qc6 34. Rxe6 Qxb6 35. Rxb6 Rc1+ 36. Kg2 Bd8 37. Rb8 Ra1 38. Rxd8+ Kf7 39. Rd7+ Kf6 40. b5 1-0

[Event "W-ch WS/O/1407 email"]
[Site "ICCF email"]
[Date "2022.01.10"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Tingen, Timothy"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "1790"]
[PlyCount "95"]
[EventDate "2022.??.??"]
[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. f4 c6 3. Nc3 d6 4. Nf3 Bg4 5. Bc4 exf4 6. d4 Qf6 7. e5 dxe5 8. dxe5 Qf5 9. 0-0 Nd7 10. Re1 0-0-0 11. Bd3 Qh5 12. Bxf4 Bc5+ 13. Kh1 Ne7 14. Ne4 Bxf3 15. Qxf3 Qxf3 16. gxf3 Nd5 17. Bg5 Rde8 18. c4 Nc7 19. Nd6+ Bxd6 20. exd6 Rxe1+ 21. Rxe1 Ne6 22. Be7 Ndc5 23. Bf5 a5 24. Kg2 g6 25. Be4 Kd7 26. Rd1 f5 27. Bc2 Re8 28. Kg3 Nd8 29. h4 h5 30. Rg1 Nf7 31. Kf2 Ne5 32. Rxg6 Rxe7 33. dxe7 Nxg6 34. Bxf5+ Kxe7 35. Bxg6 Kf6 36. Bxh5 Nd3+ 37. Ke3 Nxb2 38. Kd4 Na4 39. c5 Ke7 40. Bg4 b6 41. cxb6 Nxb6 42. Kc5 Na4+ 43. Kxc6 Nc3 44. a3 Nb1 45. Kc5 Nxa3 46. Bf5 Kf6 47. Bd3 Kg7 48. Kd5 1-0

[Event "W-ch WS/O/1407 email"]
[Site "ICCF email"]
[Date "2022.01.10"]
[Round "?"]
[White "De Cesare, Gianluca"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "B06"]
[BlackElo "1790"]
[PlyCount "82"]
[EventDate "2022.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Nc3 a6 5. Bd3 b5 6. 0-0 Bb7 7. Re1 Nd7 8. Bd2 c5 9. dxc5 Nxc5 10. Qe2 Nf6 11. b4 Nxd3 12. cxd3 e5 13. Bg5 0-0 14. a4 Qd7 15. axb5 axb5 16. Bxf6 Bxf6 17. Rxa8 Rxa8 18. h4 Rc8 19. Rc1 Rc7 20. Qd2 d5 21. h5 Be7 22. hxg6 hxg6 23. Nxe5 Qc8 24. Ne2 Rxc1+ 25. Qxc1 Qxc1+ 26. Nxc1 Bxb4 27. exd5 Bxd5 28. Ne2 Kg7 29. Kf1 Bd2 30. Nf3 Bxf3 31. gxf3 b4 32. Nd4 Bc3 33. Nb5 Bb2 34. Ke2 b3 35. Kd2 Kf6 36. Nc3 Ke5 37. Na4 Bd4 38. Ke2 b2 39. Nxb2 Bxb2 40. Kd2 Kf4 41. Ke2 Bd4 0-1

[Event "W-ch WS/O/1407 email"]
[Site "ICCF email"]
[Date "2022.01.10"]
[Round "?"]
[White "Guelfi, Luiz Adelar"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1865"]
[BlackElo "1790"]
[PlyCount "97"]
[EventDate "2022.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. d4 e6 2. c4 b6 3. e4 Bb7 4. Bd3 f5 5. exf5 Bb4+ 6. Kf1 Nf6 7. Nf3 0-0 8. a3 Bd6 9. Nc3 exf5 10. Bxf5 Nc6 11. h4 Qe7 12. Bc2 Rae8 13. Bg5 Qf7 14. Qd3 Qh5 15. Rh3 Ng4 16. Nb5 Ba6 17. Nxd6 cxd6 18. b4 Ne7 19. Re1 Nf5 20. Rxe8 Qxe8 21. b5 Bb7 22. h5 h6 23. Bd2 d5 24. Rh4 dxc4 25. Qxc4+ d5 26. Qd3 Qe4 27. Qxe4 dxe4 28. Rxg4 exf3 29. Rf4 fxg2+ 30. Kg1 Bc8 31. Bb4 Rf6 32. d5 Bd7 33. a4 Kh7 34. Be7 Rf7 35. d6 g6 36. hxg6+ Kxg6 37. Rg4+ Kh7 38. Rc4 Be6 39. Rc7 Kg7 40. Bxf5 Rxf5 41. d7 Bxd7 42. Rxd7 Kg6 43. Rxa7 Rd5 44. Rb7 Rd4 45. Rxb6+ Kf7 46. Bc5 Rxa4 47. Rc6 Kg7 48. b6 Ra1+ 49. Kxg2 1-0

[Event "W-ch WS/O/1407 email"]
[Site "ICCF email"]
[Date "2022.01.10"]
[Round "?"]
[White "Swindells, Joshua Edwin Ben"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "D20"]
[BlackElo "1790"]
[PlyCount "101"]
[EventDate "2022.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e4 e5 4. Bxc4 Qxd4 5. Qxd4 exd4 6. Nf3 Nc6 7. Bf4 Be6 8. Bxe6 fxe6 9. Bxc7 Rc8 10. Bg3 Bb4+ 11. Ke2 Nf6 12. a3 Ba5 13. b4 Bb6 14. Nbd2 0-0 15. Rac1 Rfd8 16. Kd3 Nh5 17. Nc4 Nxg3 18. hxg3 Bc7 19. Rh5 Rf8 20. Rc5 Bd8 21. Nce5 Bb6 22. Rxc6 bxc6 23. Nxc6 Rc7 24. a4 a6 25. a5 Ba7 26. Ng5 Re8 27. e5 h6 28. Ne4 Rf8 29. Rc4 Ra8 30. g4 g5 31. f3 Kf8 32. Nd6 Rd7 33. Nxa7 Rdxa7 34. Kxd4 Kg7 35. Rc6 Rd7 36. Kc4 Raa7 37. b5 axb5+ 38. Kxb5 Rd8 39. a6 Rda8 40. Nb7 Kf7 41. Rb6 Kg6 42. Rxe6+ Kh7 43. Nc5 Rc7 44. Rc6 Re7 45. e6 Kg6 46. Nd7 Rae8 47. g3 h5 48. gxh5+ Kf5 49. Kc4 Ra8 50. Kd5 Ra7 51. Rc8 1-0

[Event "W-ch WS/O/1280 email"]
[Site "ICCF email"]
[Date "2020.11.30"]
[Round "?"]
[White "Banks, Geoff"]
[Black "Calkins, Donn"]
[Result "1/2-1/2"]
[ECO "D06"]
[BlackElo "1823"]
[PlyCount "51"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. cxd5 Qxd5 4. Nc3 Qd6 5. e4 e5 6. d5 a6 7. Nf3 Be7 8. Qc2 0-0 9. Bg5 Nbd7 10. Bd3 h6 11. Bh4 Nh5 12. Bxe7 Qxe7 13. Ne2 Nc5 14. 0-0-0 Nxd3+ 15. Qxd3 Qc5+ 16. Kb1 f5 17. Nxe5 fxe4 18. Qe3 Qxe3 19. fxe3 Rf5 20. d6 cxd6 21. Nc4 Rf2 22. Nc3 Rxg2 23. Nxd6 Be6 24. Rdg1 Rxg1+ 25. Rxg1 b6 26. Ncxe4 1/2-1/2

[Event "W-ch WS/O/1280 email"]
[Site "ICCF email"]
[Date "2020.11.30"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Adrian, Soare"]
[Result "1/2-1/2"]
[ECO "E10"]
[WhiteElo "1823"]
[PlyCount "56"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 e6 5. e4 Nxe4 6. Bd3 Nf6 7. 0-0 bxc4 8. Bxc4 Ba6 9. Bxa6 Nxa6 10. Nc3 Nc7 11. d6 Ncd5 12. Nxd5 Nxd5 13. Re1 Nb6 14. Be3 g6 15. Bxc5 Bg7 16. Bd4 0-0 17. Rc1 Rc8 18. Qd3 Rxc1 19. Rxc1 Nd5 20. Bxg7 Kxg7 21. Qd4+ Qf6 22. Ne5 Rb8 23. b3 Nf4 24. Re1 Rb5 25. Qe4 Rd5 26. Nxd7 Qd4 27. h4 Rxd6 28. Ne5 Qxe4 1/2-1/2

[Event "W-ch WS/O/1280 email"]
[Site "ICCF email"]
[Date "2020.11.30"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Bellisario, Carlo"]
[Result "1-0"]
[ECO "A94"]
[WhiteElo "1823"]
[BlackElo "1426"]
[PlyCount "57"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 c6 4. Nf3 e6 5. 0-0 Be7 6. c4 0-0 7. b3 d5 8. Ba3 Bxa3 9. Nxa3 Nbd7 10. Nc2 a6 11. cxd5 cxd5 12. Rc1 b5 13. Nb4 Bb7 14. e3 Ne4 15. Nd3 Rc8 16. Rxc8 Qxc8 17. Nfe5 Nxe5 18. Nxe5 Nc3 19. Qd2 Ne4 20. Bxe4 fxe4 21. Rc1 Qe8 22. Rc7 Bc8 23. Qc1 Qd8 24. Qc5 Qf6 25. f4 Qd8 26. Qb6 g5 27. Qa7 Qf6 28. Rxh7 gxf4 29. Ng4 1-0

[Event "W-ch WS/O/1280 email"]
[Site "ICCF email"]
[Date "2020.11.30"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Raposo, Luiz Eduardo"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1823"]
[BlackElo "1577"]
[PlyCount "47"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 c6 3. Bxf6 exf6 4. c4 d5 5. cxd5 Qxd5 6. e3 Nd7 7. Nc3 Qa5 8. Bd3 f5 9. Nf3 Nf6 10. 0-0 Bd6 11. Qd2 Qd8 12. Bc4 0-0 13. Rfe1 Qe7 14. Ne2 a5 15. a3 Ne4 16. Qc2 Bd7 17. Rac1 Rfd8 18. Red1 g6 19. Bd3 a4 20. Nc3 Nxc3 21. Qxc3 Rac8 22. g3 b5 23. Ne5 Be8 24. Nf3 1-0

[Event "W-ch WS/O/1280 email"]
[Site "ICCF email"]
[Date "2020.11.30"]
[Round "?"]
[White "Heyser, Doak"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "A57"]
[BlackElo "1823"]
[PlyCount "63"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 e6 5. Nc3 exd5 6. Nxd5 Bb7 7. e4 Nxd5 8. exd5 d6 9. Ne2 Be7 10. Nc3 0-0 11. Be2 Re8 12. 0-0 Nd7 13. a4 Bf6 14. Bf4 Nb6 15. Re1 Bd4 16. a5 Nxd5 17. a6 Nxf4 18. axb7 Rb8 19. Bf3 Rxe1+ 20. Qxe1 Nd3 21. Qe2 c4 22. Bc6 Bxf2+ 23. Kh1 Bd4 24. Rf1 h6 25. Nd5 Ne5 26. Nb4 Qb6 27. Qe4 Bxb2 28. Qf5 Rf8 29. Qc8 Qd8 30. Qxd8 Rxd8 31. Bd5 Rb8 32. Na6 1-0

[Event "W-ch WS/O/1280 email"]
[Site "ICCF email"]
[Date "2020.11.30"]
[Round "?"]
[White "Takahashi, Yoshihiro"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "D06"]
[WhiteElo "1577"]
[BlackElo "1823"]
[PlyCount "92"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d5 3. cxd5 g6 4. e3 Nxd5 5. Qb3 Bg7 6. Bc4 e6 7. Nf3 Nc6 8. 0-0 0-0 9. Bd2 Nb6 10. Bb5 Bd7 11. Rc1 e5 12. Bxc6 Bxc6 13. Nxe5 Bxe5 14. dxe5 Re8 15. f4 Qd7 16. Bb4 Qg4 17. Qc2 Nd5 18. Bc5 f6 19. Bd4 Rad8 20. Qc4 fxe5 21. fxe5 Re6 22. h3 Qxg2+ 23. Kxg2 Nxe3+ 24. Kf2 Nxc4 25. Rxc4 b5 26. Rxc6 Rxc6 27. Bc3 b4 28. Bd2 Rd3 29. h4 Rc2 30. Ke2 Rh3 31. Kd1 Rc4 32. Be1 Rc5 33. e6 Rh1 34. Nd2 Re5 35. Nf3 Re3 36. Kc2 Rxf3 37. Rd1 Rh2+ 38. Rd2 Rfh3 39. Bf2 a5 40. e7 Kf7 41. Re2 Ke8 42. Kd2 a4 43. Bc5 Rxh4 44. a3 Rxe2+ 45. Kxe2 Rh2+ 46. Kd3 Rxb2 0-1

[Event "W-ch WS/O/1254 email"]
[Site "ICCF email"]
[Date "2020.08.20"]
[Round "?"]
[White "Atkins, Andrew"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "A89"]
[WhiteElo "1500"]
[BlackElo "1855"]
[PlyCount "83"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. 0-0 0-0 6. c4 d6 7. Nc3 Nc6 8. d5 Ne5 9. Nxe5 dxe5 10. Qb3 Rb8 11. Be3 b6 12. c5 e4 13. Rad1 Rf7 14. c6 a5 15. f3 Ba6 16. fxe4 Ng4 17. Bf4 Bxc3 18. Qxc3 Bxe2 19. e5 Bxf1 20. Bxf1 e6 21. d6 g5 22. Bc1 f4 23. Be2 Ne3 24. Bxe3 fxe3 25. Qxe3 Rg7 26. Bc4 Qe8 27. Qf3 Qg6 28. Qf6 Qc2 29. Qxe6+ Kh8 30. Qd5 Rd8 31. d7 Qxb2 32. Qe6 Qc2 33. Rf1 Qg6 34. Qd5 Re7 35. e6 Qg7 36. a4 h6 37. Kg2 Qb2+ 38. Rf2 Qg7 39. Qe4 h5 40. h4 Rb8 41. hxg5 Rg8 42. Rf7 1-0

[Event "W-ch WS/O/1254 email"]
[Site "ICCF email"]
[Date "2020.08.20"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Gliga, Razvan"]
[Result "1/2-1/2"]
[ECO "A81"]
[WhiteElo "1855"]
[PlyCount "34"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. b4 c6 6. c4 d5 7. cxd5 Nxd5 8. 0-0 Nd7 9. Qb3 N7b6 10. b5 Be6 11. bxc6 Nf4 12. Qe3 Nbd5 13. Qd2 Nxg2 14. cxb7 Rb8 15. Kxg2 Rxb7 16. Nc3 Qd7 17. Rd1 0-0 1/2-1/2

[Event "W-ch WS/O/1254 email"]
[Site "ICCF email"]
[Date "2020.08.20"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Riquelme Abuffon, Nicolas Maximiliano"]
[Result "1/2-1/2"]
[ECO "E63"]
[WhiteElo "1855"]
[PlyCount "75"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. Nf3 Nc6 7. 0-0 a6 8. Bf4 Rb8 9. Rc1 Bd7 10. a3 b5 11. c5 dxc5 12. dxc5 Nh5 13. Bg5 h6 14. Be3 Qc8 15. Nd4 Ne5 16. Nd5 Re8 17. f4 Nc4 18. b3 Nxe3 19. Nxe3 e5 20. fxe5 Rxe5 21. Nd5 Qd8 22. Nb4 Qg5 23. Nf3 Qe3+ 24. Rf2 Rf5 25. Nc2 Qe7 26. g4 Rxf3 27. exf3 Nf4 28. Qd2 g5 29. b4 Bc6 30. Rd1 Re8 31. Re1 Be5 32. Nd4 Bd5 33. Bf1 Qf6 34. Nf5 Re6 35. Re3 h5 36. h3 Kf8 37. Bg2 Re8 38. Qe1 1/2-1/2

[Event "W-ch WS/O/1254 email"]
[Site "ICCF email"]
[Date "2020.08.20"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Shtrikman, Ronen"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "1855"]
[BlackElo "1677"]
[PlyCount "117"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Bg4 8. Nge2 Nbd7 9. Qc2 Bxe2 10. Qxe2 0-0 11. 0-0 Re8 12. Qf3 Nf8 13. Rac1 Ne6 14. Bxf6 Bxf6 15. b4 a6 16. Rb1 b5 17. a4 h6 18. a5 Rc8 19. Bf5 Rc7 20. Rfc1 Ng5 21. Qf4 Rce7 22. h4 Ne6 23. Qg4 Rc7 24. g3 Kh8 25. Bc2 Nf8 26. Rd1 Qc8 27. Qxc8 Rcxc8 28. Bf5 Ne6 29. Ne2 Rc7 30. Rdc1 Kg8 31. Rc2 g6 32. Bxe6 fxe6 33. Nf4 Kf7 34. Rbc1 Rec8 35. f3 Be7 36. h5 g5 37. Nd3 Bd6 38. Kf2 Ke8 39. f4 gxf4 40. gxf4 Kf7 41. Rg1 Rg8 42. Rcc1 Rcc8 43. Rxg8 Kxg8 44. Rg1+ Kh7 45. Rg6 Re8 46. Nc5 Bxc5 47. dxc5 Re7 48. Kf3 Re8 49. e4 d4 50. Ke2 Rf8 51. Kd3 Rxf4 52. Rxe6 Rh4 53. Rxc6 Rxh5 54. Rxa6 Rh3+ 55. Kxd4 Rb3 56. Rb6 Rxb4+ 57. Ke5 h5 58. a6 Ra4 59. c6 1-0

[Event "W-ch WS/O/1254 email"]
[Site "ICCF email"]
[Date "2020.08.20"]
[Round "?"]
[White "Mujunen, Martti"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1893"]
[BlackElo "1855"]
[PlyCount "115"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. c4 e6 4. dxe6 Bxe6 5. d4 Bb4+ 6. Nc3 Ne4 7. Qd3 Bf5 8. a3 Bxc3+ 9. bxc3 0-0 10. Qf3 Re8 11. Be2 Nc6 12. Ra2 Bd7 13. Kf1 h6 14. Rc2 Qe7 15. g3 Qe6 16. Kg2 Qg6 17. Rb2 b6 18. h4 Qd6 19. Ra2 Na5 20. h5 Bc6 21. d5 Ba4 22. Rh4 Ng5 23. Bxg5 hxg5 24. Rg4 Qh6 25. Qf5 Qxh5 26. Rh4 Qg6 27. Qxg6 fxg6 28. Rg4 Bb3 29. Rb2 Rac8 30. Rxg5 Bxc4 31. Bg4 Rcd8 32. Be6+ Rxe6 33. dxe6 Bxe6 34. Re2 Kf7 35. Rge5 Bd5+ 36. f3 Nc6 37. R5e3 Bc4 38. Re1 g5 39. g4 Rd5 40. Nh3 a5 41. Kg3 Rc5 42. Re8 Kg6 43. Rf8 Bf7 44. c4 Re5 45. Rxe5 Nxe5 46. Nxg5 Kxg5 47. f4+ Kf6 48. fxe5+ Ke7 49. Rc8 Kd7 50. Rh8 Ke6 51. Kf4 g6 52. Ra8 g5+ 53. Kxg5 Kxe5 54. Kh6 Bxc4 55. g5 a4 56. Rxa4 Bb5 57. Rb4 Be8 58. g6 1-0

[Event "W-ch WS/O/1254 email"]
[Site "ICCF email"]
[Date "2020.08.20"]
[Round "?"]
[White "Stewart, Douglas"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "D02"]
[BlackElo "1855"]
[PlyCount "57"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. Nc3 d5 2. d4 Nf6 3. Bf4 Bf5 4. Nf3 e6 5. e3 Bb4 6. Bd3 Ne4 7. 0-0 Bxc3 8. bxc3 Nxc3 9. Qd2 Ne4 10. Qb4 b6 11. Ne5 Nd6 12. Qa4+ Kf8 13. Bxf5 Nxf5 14. c4 f6 15. Nd3 g5 16. cxd5 exd5 17. g4 gxf4 18. gxf5 Rg8+ 19. Kh1 Qc8 20. Rac1 fxe3 21. fxe3 c6 22. Qa3+ Ke8 23. e4 dxe4 24. Qb3 Ke7 25. Nf4 Kd6 26. Nh5 Rf8 27. Qg3+ Kd7 28. Nxf6+ Rxf6 29. Qg7+ 1-0

[Event "W-ch WS/O/1239 email"]
[Site "ICCF email"]
[Date "2020.06.26"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Bellisario, Carlo"]
[Result "1-0"]
[ECO "A81"]
[WhiteElo "1879"]
[BlackElo "1479"]
[PlyCount "45"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. c3 Bg7 5. Qb3 c6 6. Nd2 d5 7. Nh3 b6 8. 0-0 e6 9. Nf3 Nbd7 10. Nfg5 Qe7 11. Nf4 Nb8 12. Bd2 h6 13. Nxg6 Qc7 14. Nxh8 Bxh8 15. Bf4 Qg7 16. Nf3 Nbd7 17. c4 Ba6 18. Nd2 Ne4 19. Rfd1 Nxd2 20. Rxd2 Bxc4 21. Qc3 c5 22. Qe3 cxd4 23. Qxe6+ 1-0

[Event "W-ch WS/O/1239 email"]
[Site "ICCF email"]
[Date "2020.06.26"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Grenard, Gerald"]
[Result "0-1"]
[ECO "E66"]
[WhiteElo "1879"]
[PlyCount "76"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 c5 6. Nf3 d6 7. 0-0 Nc6 8. d5 Na5 9. Nd2 a6 10. Rb1 Rb8 11. b3 b5 12. Bb2 Bh6 13. Nce4 Nxe4 14. Bxe4 bxc4 15. Nxc4 Bh3 16. Bg2 Bxg2 17. Kxg2 Nxc4 18. bxc4 Qa5 19. Qd3 Qxa2 20. Bc3 Bg7 21. Ra1 Qb3 22. Bxg7 Kxg7 23. Rxa6 Rb4 24. Rfa1 Qxc4 25. Qxc4 Rxc4 26. Ra7 Re8 27. R1a4 Rxa4 28. Rxa4 f5 29. f4 Kf6 30. h3 Rb8 31. Kf3 Rb3+ 32. Kf2 Rb1 33. g4 fxg4 34. hxg4 Rb4 35. g5+ Kf7 36. Ra3 Rxf4+ 37. Kg3 Rf5 38. Kg4 Rxd5 0-1

[Event "W-ch WS/O/1239 email"]
[Site "ICCF email"]
[Date "2020.06.26"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Kaestner, Marcus"]
[Result "0-1"]
[ECO "D06"]
[WhiteElo "1879"]
[PlyCount "70"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. c4 Ne4 4. Nf3 Nxg5 5. Nxg5 dxc4 6. e3 e6 7. Nf3 b5 8. Nc3 Bb4 9. Be2 Bb7 10. 0-0 a6 11. Rc1 Nd7 12. b3 Ba3 13. Rc2 cxb3 14. axb3 0-0 15. Nd2 c5 16. Bf3 Qb6 17. Bxb7 Qxb7 18. Nde4 cxd4 19. exd4 Rac8 20. Qf3 Qc6 21. Qe2 Rfd8 22. Ra1 Bf8 23. Rac1 Qa8 24. g3 h6 25. Rd1 e5 26. dxe5 Nxe5 27. Rxd8 Rxd8 28. Qh5 Re8 29. Re2 b4 30. Na4 Qc8 31. Re1 Nd3 32. Re3 Qc1+ 33. Kg2 Ne1+ 34. Kh3 Rxe4 35. Rxe4 Qc8+ 0-1

[Event "W-ch WS/O/1239 email"]
[Site "ICCF email"]
[Date "2020.06.26"]
[Round "?"]
[White "Cerne, Peter"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1884"]
[BlackElo "1879"]
[PlyCount "57"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[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. h3 e5 7. Nde2 h5 8. Qd3 Be7 9. Be3 0-0 10. 0-0-0 Be6 11. Kb1 Nbd7 12. g4 Nc5 13. Bxc5 dxc5 14. Qg3 Bd6 15. gxh5 Nxh5 16. Qf3 g6 17. Rg1 Nf6 18. h4 Kh7 19. h5 Nxh5 20. Bh3 Qe7 21. Bf5 Nf6 22. Qh3+ Kg7 23. Bxe6 fxe6 24. Qg2 Rad8 25. Qxg6+ Kh8 26. Rh1+ Nh7 27. Ng3 Rd7 28. Rxh7+ Qxh7 29. Rh1 1-0

[Event "W-ch WS/O/1239 email"]
[Site "ICCF email"]
[Date "2020.06.26"]
[Round "?"]
[White "Howard, Ian"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "D85"]
[BlackElo "1879"]
[PlyCount "22"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 0-0 9. Be2 b6 10. 0-0 Bb7 11. Qd3 Ba6 0-1

[Event "W-ch WS/O/1239 email"]
[Site "ICCF email"]
[Date "2020.06.26"]
[Round "?"]
[White "Navarro Ballester, Antonio"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "D11"]
[BlackElo "1879"]
[PlyCount "24"]
[EventDate "2020.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 g6 6. 0-0 Bg7 7. Na3 b5 8. Ne5 Nd5 9. e4 Nb6 10. f4 0-0 11. Be3 Qd6 12. Rc1 N8d7 0-1

[Event "W-ch WS/O/1195 email"]
[Site "ICCF email"]
[Date "2019.12.30"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Barnard, Ross"]
[Result "1-0"]
[ECO "D33"]
[WhiteElo "1895"]
[PlyCount "97"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nf6 6. Bg2 Nc6 7. 0-0 Be6 8. Nc3 a6 9. Bg5 Be7 10. dxc5 Bxc5 11. Bxf6 Qxf6 12. Nxd5 Bxd5 13. Qxd5 Be7 14. Rad1 0-0 15. e4 Rad8 16. Qb3 b5 17. Rfe1 Rxd1 18. Rxd1 Qe6 19. Qxe6 fxe6 20. Rc1 Nb8 21. Nd4 e5 22. Ne6 Re8 23. Bh3 Bf6 24. Nc7 Rf8 25. Ne6 Re8 26. Rc7 g6 27. f4 a5 28. f5 Na6 29. Rb7 Nb4 30. Rxb5 Nxa2 31. Rxa5 Nc1 32. Bf1 Rc8 33. Ra7 Nb3 34. fxg6 hxg6 35. Rc7 Rxc7 36. Nxc7 Nc5 37. Bc4+ Kh7 38. b4 Na4 39. Nd5 Bd8 40. b5 Nb6 41. Nxb6 Bxb6+ 42. Kf1 Kh6 43. Be2 g5 44. h4 gxh4 45. gxh4 Bd8 46. h5 Bc7 47. Bf3 Bb6 48. Ke2 Kg5 49. Kd3 1-0

[Event "W-ch WS/O/1195 email"]
[Site "ICCF email"]
[Date "2019.12.30"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Dudley, Michael"]
[Result "0-1"]
[ECO "D72"]
[WhiteElo "1895"]
[PlyCount "66"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Bg7 6. e4 Nb6 7. Ne2 c5 8. d5 0-0 9. 0-0 e6 10. Nec3 Na6 11. a4 exd5 12. exd5 Bf5 13. d6 Nb4 14. Bxb7 Re8 15. Bxa8 Qxa8 16. Nd2 Nc2 17. a5 Nd7 18. Ra4 Nd4 19. Re1 Rxe1+ 20. Qxe1 Ne5 21. Qe3 Nef3+ 22. Nxf3 Nxf3+ 23. Kg2 Ne1+ 24. Kf1 Nc2 25. Qxc5 Qh1+ 26. Ke2 Qe1+ 27. Kf3 Qxc1 28. Re4 Bxe4+ 29. Kxe4 Qd2 30. g4 h5 31. h3 Kh7 32. d7 hxg4 33. hxg4 Qxd7 0-1

[Event "W-ch WS/O/1195 email"]
[Site "ICCF email"]
[Date "2019.12.30"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Poulos, Georgios"]
[Result "0-1"]
[ECO "D77"]
[WhiteElo "1895"]
[PlyCount "48"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. Nf3 dxc4 6. Na3 0-0 7. 0-0 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. e3 a5 11. a4 Nb4 12. Ba3 c6 13. Nfe5 Bxg2 14. Kxg2 b5 15. Nd2 bxa4 16. bxa4 c5 17. dxc5 Nd7 18. Nxd7 Qxd7 19. Rb1 Rfd8 20. Ne4 Qe6 21. Qf3 Nd3 22. Ng5 Qa2 23. Rfd1 Bf6 24. h4 Rac8 0-1

[Event "W-ch WS/O/1195 email"]
[Site "ICCF email"]
[Date "2019.12.30"]
[Round "?"]
[White "Castilla, Luis"]
[Black "Calkins, Donn"]
[Result "1/2-1/2"]
[ECO "C60"]
[WhiteElo "1808"]
[BlackElo "1895"]
[PlyCount "82"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[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. Bb5 a6 4. Ba4 Nge7 5. c3 g6 6. 0-0 Bg7 7. d4 exd4 8. cxd4 b5 9. Bb3 0-0 10. Nc3 d6 11. h3 Na5 12. Bc2 c5 13. Bg5 h6 14. Bh4 g5 15. Bg3 Nc4 16. b3 Na3 17. Bd3 cxd4 18. Ne2 Qb6 19. e5 dxe5 20. Bxe5 Bxe5 21. Nxe5 Qf6 22. Ng4 Bxg4 23. hxg4 Nd5 24. Qd2 Rfe8 25. Ng3 Nf4 26. Nh5 Nxh5 27. gxh5 Rad8 28. Rac1 Qd6 29. f4 g4 30. Qd1 Qe6 31. Rf2 g3 32. Re2 Qd6 33. Rxe8+ Rxe8 34. Qg4+ Kf8 35. Qxg3 Qe7 36. Kh2 Qe3 37. Rd1 Rc8 38. Qxe3 dxe3 39. Re1 Nc2 40. Rc1 Rc3 41. Be2 f5 1/2-1/2

[Event "W-ch WS/O/1195 email"]
[Site "ICCF email"]
[Date "2019.12.30"]
[Round "?"]
[White "Rojas, Josep"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "B43"]
[BlackElo "1895"]
[PlyCount "67"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[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 a6 5. Nc3 b5 6. Bd3 Qb6 7. Be3 Bc5 8. Be2 Nc6 9. Nxc6 Qxc6 10. Bf3 Bxe3 11. fxe3 Qc5 12. Qd4 Qxd4 13. exd4 Bb7 14. Kd2 Ne7 15. b4 0-0 16. a4 f5 17. Rhf1 bxa4 18. exf5 Bxf3 19. Rxf3 Nxf5 20. Kd3 Nh4 21. Rxf8+ Rxf8 22. Nxa4 Nxg2 23. Nb6 d5 24. Nd7 Rd8 25. Nc5 Rb8 26. c3 Nf4+ 27. Kd2 g5 28. Rxa6 Kf7 29. Ra7+ Kg6 30. Nd7 Rb5 31. Kc2 h5 32. Kb3 e5 33. dxe5 Kf5 34. Ka4 1-0

[Event "W-ch WS/O/1195 email"]
[Site "ICCF email"]
[Date "2019.12.30"]
[Round "?"]
[White "Steenlandt, Alain"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "A58"]
[WhiteElo "1684"]
[BlackElo "1895"]
[PlyCount "74"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 Qa5 7. Bd2 Qb6 8. Qc2 g6 9. e4 Bxf1 10. Kxf1 Bg7 11. g3 0-0 12. Kg2 Na6 13. e5 Nb4 14. Qb3 Ng4 15. f4 c4 16. Qxc4 Qf2+ 17. Kh3 Qxd2 18. Kxg4 Nd3 19. Nf3 Nf2+ 20. Kh4 Qe3 21. Qe2 Qxe2 22. Nxe2 Nxh1 23. Rxh1 Rxa2 24. Rc1 f6 25. Rc2 fxe5 26. Nxe5 Bxe5 27. fxe5 Rb8 28. h3 Rbxb2 29. Rxb2 Rxb2 30. Nf4 Rb4 31. Kg5 Kg7 32. h4 Rd4 33. Kg4 d6 34. Kf3 Kf7 35. exd6 exd6 36. Ke3 Ra4 37. Nd3 Kf6 0-1

[Event "W-ch WS/H/743 email"]
[Site "ICCF email"]
[Date "2019.09.27"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Bourgault, Julien"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1912"]
[BlackElo "2029"]
[PlyCount "27"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 d6 2. e4 Nf6 3. f3 Bd7 4. Be3 e5 5. Nc3 exd4 6. Qxd4 Nc6 7. Qd2 a6 8. 0-0-0 Be7 9. Nge2 0-0 10. Nf4 b5 11. Ncd5 Re8 12. Nxe7+ Qxe7 13. Be2 h6 14. g4 1-0

[Event "W-ch WS/H/743 email"]
[Site "ICCF email"]
[Date "2019.09.27"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Radhey Derling, Daman"]
[Result "0-1"]
[ECO "D72"]
[WhiteElo "1912"]
[BlackElo "2021"]
[PlyCount "88"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. e4 Nb6 7. Ne2 c5 8. d5 0-0 9. 0-0 e6 10. Nec3 Na6 11. a4 Nc4 12. Na3 exd5 13. exd5 Ne5 14. Bf4 Bg4 15. Qd2 Nf3+ 16. Bxf3 Bxf3 17. Nc4 Nb4 18. d6 Re8 19. Rae1 Qd7 20. Re3 Bc6 21. Na5 Rxe3 22. fxe3 Rd8 23. Rd1 Bf3 24. Rf1 Bg4 25. h4 Be6 26. b3 h6 27. Rd1 b6 28. Nc4 f6 29. e4 Bxc4 30. bxc4 g5 31. Be3 Qg4 32. Bf2 f5 33. Nd5 fxe4 34. Nxb4 cxb4 35. hxg5 Kh8 36. gxh6 Be5 37. d7 e3 38. Bxe3 Qxg3+ 39. Kf1 b3 40. h7 b2 41. Bd4 Qh3+ 42. Ke1 Qh1+ 43. Ke2 Qg2+ 44. Kd3 Qxd2+ 0-1

[Event "W-ch WS/H/743 email"]
[Site "ICCF email"]
[Date "2019.09.27"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Schelberg, Martin"]
[Result "0-1"]
[ECO "D23"]
[WhiteElo "1912"]
[BlackElo "1917"]
[PlyCount "72"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. c4 dxc4 4. Nf3 c5 5. Qa4+ Qd7 6. Qxc4 cxd4 7. e3 dxe3 8. Bxe3 Nc6 9. Nc3 e5 10. Ng5 Bb4 11. Rd1 Qc7 12. Bg2 0-0 13. 0-0 Bxc3 14. Qxc3 Bg4 15. Rc1 h6 16. Ne4 Nd5 17. Qc4 Nxe3 18. fxe3 Be6 19. Qe2 Rad8 20. a3 Qb6 21. Nc5 Bd5 22. Bxd5 Rxd5 23. b4 Ne7 24. Qc2 Qb5 25. e4 Rd4 26. Nb3 Rd7 27. Na5 Rc8 28. Qa2 Rxc1 29. Rxc1 Qd3 30. Rf1 Nc8 31. Nb3 Qe3+ 32. Kh1 Qxe4+ 33. Qg2 Qxg2+ 34. Kxg2 b6 35. Re1 f6 36. Re4 Rd3 0-1

[Event "W-ch WS/H/743 email"]
[Site "ICCF email"]
[Date "2019.09.27"]
[Round "?"]
[White "Pichushkin, Vladimir Alekseevic"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "C06"]
[WhiteElo "2051"]
[BlackElo "1912"]
[PlyCount "37"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[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. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 f6 9. exf6 Nxf6 10. Nf3 Bd6 11. 0-0 Qc7 12. Nc3 a6 13. Bg5 0-0 14. Bh4 Bd7 15. Re1 g6 16. Bg3 Rae8 17. Rc1 Bxg3 18. hxg3 Qd6 19. Bc2 1-0

[Event "W-ch WS/H/743 email"]
[Site "ICCF email"]
[Date "2019.09.27"]
[Round "?"]
[White "Sabbatini, Giuseppe"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "1913"]
[BlackElo "1912"]
[PlyCount "93"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nc6 5. e3 g6 6. Nc3 a6 7. Nf3 Nf6 8. Be2 Bg7 9. Ne5 0-0 10. Nxc6 bxc6 11. h3 Qb6 12. 0-0 Qxb2 13. Na4 Qa3 14. Rc1 Ra7 15. Qc2 Bf5 16. Qb3 Qxb3 17. axb3 Ne4 18. Rxc6 g5 19. Bc7 Bd7 20. Rc2 f5 21. Nb6 Bb5 22. Bxb5 axb5 23. Rfc1 e6 24. f3 Nf6 25. Bd6 Rd8 26. Nc8 Ra6 27. Rc6 Ra8 28. Nb6 Ra6 29. Be7 Rb8 30. Bxf6 Rbxb6 31. Rxb6 Rxb6 32. Bxg5 h6 33. Bf4 h5 34. Rc7 Bf6 35. Kf2 Ra6 36. Rb7 Ra2+ 37. Kg1 Ra1+ 38. Kh2 Bh4 39. g3 Bf6 40. h4 Rb1 41. Rb8+ Kf7 42. Rb7+ Kg8 43. Rxb5 Be7 44. Rb7 Bf6 45. b4 Rb2+ 46. Kh3 Rb3 47. b5 1-0

[Event "W-ch WS/H/743 email"]
[Site "ICCF email"]
[Date "2019.09.27"]
[Round "?"]
[White "Van Dam, Joost"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "A54"]
[WhiteElo "2027"]
[BlackElo "1912"]
[PlyCount "37"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. Nf3 e5 5. h3 exd4 6. Qxd4 Nc5 7. b3 Be7 8. g4 0-0 9. Bg2 Bd7 10. Bb2 Bc6 11. 0-0 Re8 12. e3 Nfd7 13. Nd5 Bf6 14. Nxf6+ Nxf6 15. Nh4 Bxg2 16. Kxg2 Ne6 17. Qd1 g6 18. Nf3 a5 19. Rc1 1-0

[Event "W-ch WS/H/724 email"]
[Site "ICCF email"]
[Date "2019.05.12"]
[Round "?"]
[White "Bourgault, Julien"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1937"]
[BlackElo "1911"]
[PlyCount "79"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bc4 Bg4 6. f3 Bf5 7. a3 e6 8. Nge2 Nbd7 9. 0-0 Bd6 10. Ng3 Bg6 11. Nge4 Be7 12. Be3 0-0 13. b4 Qh5 14. Ng3 Qh4 15. Nge2 Nb6 16. g3 Qh5 17. Nf4 Qh6 18. Bb3 Bd6 19. Nb5 e5 20. Nd5 Qh3 21. Nxf6+ gxf6 22. Nxd6 cxd6 23. Qe2 Rad8 24. a4 Rde8 25. dxe5 fxe5 26. a5 Nc8 27. Qd2 Rd8 28. Bg5 Rd7 29. Rad1 b5 30. f4 h6 31. f5 hxg5 32. fxg6 Kg7 33. gxf7 Qh5 34. Rf5 Kg6 35. Rdf1 Qg4 36. Rf6+ Kh7 37. Be6 Qd4+ 38. Qxd4 exd4 39. Bf5+ Kg7 40. Rg6+ 1-0

[Event "W-ch WS/H/724 email"]
[Site "ICCF email"]
[Date "2019.05.12"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Campani, Paolo"]
[Result "0-1"]
[ECO "D39"]
[WhiteElo "1911"]
[BlackElo "1914"]
[PlyCount "108"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[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. Nc3 dxc4 5. e4 Bb4 6. Bg5 c5 7. Bxc4 cxd4 8. Nxd4 Qa5 9. Bb5+ Bd7 10. Bxf6 Bxb5 11. Ndxb5 gxf6 12. 0-0 Nc6 13. a3 Bxc3 14. Nxc3 Qb6 15. b4 Rd8 16. Qh5 Qc7 17. Rac1 Qf4 18. Rfd1 Rxd1+ 19. Rxd1 Qe5 20. Qh3 Ke7 21. Qe3 Rd8 22. Rxd8 Kxd8 23. f4 Qc7 24. g3 Qd6 25. Ne2 a5 26. b5 Nb8 27. Qa7 Qc7 28. a4 Nd7 29. Qe3 Ke7 30. Qb3 b6 31. Qe3 Qc5 32. Nd4 Ke8 33. h3 Qb4 34. Nc6 Qb1+ 35. Kh2 Qb2+ 36. Kg1 Nc5 37. e5 Qb1+ 38. Kf2 f5 39. Qd4 Ne4+ 40. Ke2 Qc2+ 41. Ke1 Qb1+ 42. Ke2 Qc2+ 43. Ke1 Kf8 44. Qd8+ Kg7 45. Ne7 Qf2+ 46. Kd1 Qf1+ 47. Kc2 Qxh3 48. Qg8+ Kh6 49. Qxf7 Qg2+ 50. Kb3 Nc5+ 51. Kc3 Qf3+ 52. Kc2 Qe2+ 53. Kb1 Qd1+ 54. Kb2 Nxa4+ 0-1

[Event "W-ch WS/H/724 email"]
[Site "ICCF email"]
[Date "2019.05.12"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Rausch, Wolfgang"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "1911"]
[BlackElo "1907"]
[PlyCount "128"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[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 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 0-0 8. 0-0 d5 9. cxd5 exd5 10. Ne5 Bb7 11. Qc2 c5 12. dxc5 bxc5 13. Nc3 Nc6 14. Nxc6 Bxc6 15. Bg5 Rc8 16. Rac1 d4 17. Bxf6 Bxf6 18. Bxc6 dxc3 19. Rfd1 Qe7 20. Qe4 Qc7 21. Bd5 g6 22. Qd3 Kg7 23. Kg2 Rb8 24. e4 Rb4 25. Bc4 Rd8 26. Qe3 Rxd1 27. Rxd1 Rb7 28. f4 Bd4 29. Rxd4 cxd4 30. Qxd4+ f6 31. Qxc3 Qc6 32. Kf3 Re7 33. Qd4 Rd7 34. Qc3 Qc5 35. e5 fxe5 36. fxe5 Qd4 37. Qxd4 Rxd4 38. a4 a5 39. Ke3 Rd1 40. h4 Kf8 41. Ke4 Ke7 42. Ke3 h6 43. Ke4 Kd7 44. Bb5+ Ke7 45. Bd3 Rg1 46. Kf3 g5 47. hxg5 hxg5 48. Bc4 Re1 49. e6 Rg1 50. Kg4 Kf6 51. Bd5 Rd1 52. Bc4 Rc1 53. Bd5 Rc5 54. Bc4 Re5 55. Kh5 Re3 56. Kg4 Re1 57. Kh5 Re3 58. Kg4 Re5 59. Kh5 Re4 60. Bd5 Re2 61. Bc4 Re5 62. Kg4 Re3 63. Bd5 Kg6 64. Bc4 Re5 1/2-1/2

[Event "W-ch WS/H/724 email"]
[Site "ICCF email"]
[Date "2019.05.12"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Roehrig, Uwe"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "1911"]
[BlackElo "1959"]
[PlyCount "43"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. h3 c5 7. d5 Nbd7 8. Be2 h6 9. 0-0 a6 10. Be3 Rb8 11. a4 Ne8 12. Qd3 Kh7 13. a5 Ne5 14. Nxe5 Bxe5 15. f4 Bg7 16. f5 Nf6 17. e5 dxe5 18. fxg6+ fxg6 19. Bxc5 Bf5 20. Qe3 Nd7 21. Bb4 g5 22. Rxf5 1-0

[Event "W-ch WS/H/724 email"]
[Site "ICCF email"]
[Date "2019.05.12"]
[Round "?"]
[White "O'Neill McAleenan, Charles"]
[Black "Calkins, Donn"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1981"]
[BlackElo "1911"]
[PlyCount "45"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. d5 e6 5. f3 Bd6 6. Bxd6 Nxd6 7. e4 0-0 8. Nc3 b6 9. Qd2 e5 10. g4 Na6 11. Nh3 Qh4+ 12. Nf2 Nc7 13. a4 f6 14. Be2 g6 15. Qe3 Bb7 16. 0-0-0 Ba6 17. Bxa6 Nxa6 18. Kb1 Rac8 19. f4 exf4 20. Qxf4 Nc4 21. Nb5 Qg5 22. Qg3 Qe5 23. Qb3 1/2-1/2

[Event "W-ch WS/H/724 email"]
[Site "ICCF email"]
[Date "2019.05.12"]
[Round "?"]
[White "Van Dam, Joost"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2028"]
[BlackElo "1911"]
[PlyCount "87"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[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. c3 Qb6 5. Nf3 Nc6 6. a3 cxd4 7. cxd4 Nh6 8. b4 Nf5 9. Bb2 Bd7 10. g4 Nfe7 11. Nc3 Na5 12. Nd2 Rc8 13. Rc1 Ng6 14. h4 h5 15. gxh5 Nf4 16. h6 Rxh6 17. Qf3 Nh5 18. Qe3 Nc4 19. Bxc4 dxc4 20. Nce4 Bb5 21. Rg1 Qd8 22. Nc3 a6 23. Rd1 Qxh4 24. Nf3 Qh3 25. Nxb5 axb5 26. Bc1 Qf5 27. d5 exd5 28. Nd4 Qd7 29. Qf3 Rh8 30. Kf1 Be7 31. e6 fxe6 32. Re1 Bf6 33. Nxe6 Kf7 34. Rg5 Kg8 35. Rxh5 Rxh5 36. Qxh5 Re8 37. Nf4 Rxe1+ 38. Kxe1 d4 39. Kd1 d3 40. Qd5+ Qf7 41. Be3 Qxd5 42. Nxd5 Kf7 43. Kd2 g5 44. Nc7 1-0

[Event "W-ch WS/H/720 email"]
[Site "ICCF email"]
[Date "2019.04.17"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Hansen, Nicklas"]
[Result "0-1"]
[ECO "D43"]
[WhiteElo "1911"]
[BlackElo "1966"]
[PlyCount "74"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Ne5 Nbd7 10. Be2 Bb7 11. 0-0 Bg7 12. Nxd7 Nxd7 13. Bd6 a6 14. a4 b4 15. Bxb4 Qb6 16. Ba3 Qxd4 17. Qc2 c5 18. Rad1 Qe5 19. Bxc4 Qc7 20. Bb5 axb5 21. Nxb5 Qc6 22. Nd6+ Kf8 23. b3 Ba6 24. Rfe1 Be5 25. Bb2 f6 26. Bxe5 Nxe5 27. Qc3 Rd8 28. Nb5 Rxd1 29. Rxd1 Bxb5 30. axb5 Qxb5 31. Rc1 Ke7 32. Qxc5+ Qxc5 33. Rxc5 Ra8 34. Kf1 Ra1+ 35. Ke2 Ra2+ 36. Kf1 Nd3 37. Rc3 Rxf2+ 0-1

[Event "W-ch WS/H/720 email"]
[Site "ICCF email"]
[Date "2019.04.17"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Liutaia, Lidiia"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "1911"]
[BlackElo "1904"]
[PlyCount "82"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 c5 2. d5 e6 3. e4 exd5 4. exd5 d6 5. Nf3 Nf6 6. Nc3 Be7 7. Be2 h6 8. 0-0 0-0 9. Be3 Na6 10. Bxa6 bxa6 11. h3 Bf5 12. Nd2 Re8 13. Re1 Qb8 14. Rb1 Bg6 15. g4 Nh7 16. Nc4 Qb4 17. Qe2 Bxc2 18. Nxd6 Bxd6 19. Qxc2 Rad8 20. Bd2 Be5 21. Re2 Nf8 22. g5 h5 23. Rbe1 Ng6 24. Ne4 Qb5 25. Nc3 Qd7 26. Re3 Rb8 27. Bc1 Rb4 28. Qd1 Rh4 29. Qf3 Re7 30. a4 c4 31. Bd2 Rf4 32. Qxh5 Nh4 33. Rg3 g6 34. Qd1 Rd4 35. f4 Bxf4 36. Rxe7 Qxe7 37. Qe2 Be5 38. Be3 Rd3 39. Bf2 Rxg3+ 40. Bxg3 Qxg5 41. Ne4 Qc1+ 0-1

[Event "W-ch WS/H/720 email"]
[Site "ICCF email"]
[Date "2019.04.17"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Maschietti, Giampaolo"]
[Result "0-1"]
[ECO "E68"]
[WhiteElo "1911"]
[BlackElo "1971"]
[PlyCount "70"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5 11. Re1 Bd7 12. Bf4 h6 13. g4 h5 14. f3 hxg4 15. hxg4 Ne6 16. Nxe6 Bxe6 17. c5 dxc5 18. Qxd8 Rexd8 19. Bxc7 Rd2 20. Re2 Rxe2 21. Nxe2 Nd7 22. Ba5 Bc4 23. Rd1 Ne5 24. Nc1 Be6 25. Bc3 b5 26. f4 Nxg4 27. Bxg7 Kxg7 28. f5 Ne3 29. Rd2 Nxg2 30. Rxg2 Bd7 31. Nd3 c4 32. Ne5 Be8 33. fxg6 fxg6 34. a4 bxa4 35. Rxg6+ Bxg6 0-1

[Event "W-ch WS/H/720 email"]
[Site "ICCF email"]
[Date "2019.04.17"]
[Round "?"]
[White "Roy, Rabirashmi"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1922"]
[BlackElo "1911"]
[PlyCount "91"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Bd3 Nc6 5. c3 e5 6. h3 Nf6 7. 0-0 0-0 8. Re1 h6 9. Na3 Re8 10. Bd2 exd4 11. cxd4 d5 12. e5 Ne4 13. Nc2 Nxd2 14. Qxd2 Be6 15. Rac1 a6 16. Ne3 h5 17. Nf1 a5 18. Ng3 a4 19. Rc3 Nb4 20. Bb1 Nc6 21. Qc1 a3 22. bxa3 Bf8 23. Bd3 Qe7 24. Qb1 Rab8 25. Qc1 Ra8 26. Qc2 Kg7 27. Rb1 Rxa3 28. Rxa3 Qxa3 29. Rb3 Qa8 30. Bxg6 fxg6 31. Nxh5+ gxh5 32. Ng5 Bg8 33. Rg3 Ne7 34. Nh7+ Kf7 35. Rf3+ Kg7 36. Rg3+ Kf7 37. Ng5+ Kg7 38. Ne4+ Ng6 39. Nf6 Bf7 40. Nxh5+ Kh6 41. Qf5 Qc8 42. Qg5+ Kh7 43. Nf6+ Kg7 44. h4 Bb4 45. h5 Rh8 46. hxg6 1-0

[Event "W-ch WS/H/720 email"]
[Site "ICCF email"]
[Date "2019.04.17"]
[Round "?"]
[White "Selle, Uwe"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "A58"]
[WhiteElo "2082"]
[BlackElo "1911"]
[PlyCount "29"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 c5 2. d5 Nf6 3. c4 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 g6 7. e4 Bxf1 8. Kxf1 Bg7 9. e5 Ng8 10. Bf4 d6 11. exd6 exd6 12. Nb5 Be5 13. Bxe5 dxe5 14. d6 Nd7 15. Nc7+ 1-0

[Event "W-ch WS/H/720 email"]
[Site "ICCF email"]
[Date "2019.04.17"]
[Round "?"]
[White "Szopa, Janusz"]
[Black "Calkins, Donn"]
[Result "1/2-1/2"]
[ECO "B43"]
[WhiteElo "1918"]
[BlackElo "1911"]
[PlyCount "97"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[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 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nb3 Qc7 8. Be3 Bb7 9. 0-0 Nf6 10. f4 d6 11. f5 e5 12. Rc1 Nbd7 13. Nd5 Nxd5 14. exd5 Bxd5 15. Bxb5 axb5 16. Qxd5 Rb8 17. c4 Nf6 18. Qd3 bxc4 19. Rxc4 Qd8 20. Bd2 d5 21. Rc6 Be7 22. Qg3 0-0 23. Qxe5 Qe8 24. Qc7 Ne4 25. Rc2 Bd6 26. Qc6 Nxd2 27. Qxe8 Bxh2+ 28. Kh1 Rfxe8 29. Nxd2 Be5 30. b3 Kf8 31. Rd1 Rec8 32. Rxc8+ Rxc8 33. Nf3 Bg3 34. a4 h5 35. a5 Ke7 36. b4 Rc4 37. b5 Ra4 38. a6 Kd6 39. Kg1 Kc5 40. Kf1 Kxb5 41. Rxd5+ Kxa6 42. Rd7 Ra1+ 43. Ke2 Ra2+ 44. Kd3 Rxg2 45. Rxf7 Bf4 46. f6 Bh6 47. fxg7 Bxg7 48. Rf5 Rg3 49. Rxh5 1/2-1/2

[Event "W-ch WS/H/710 email"]
[Site "ICCF email"]
[Date "2019.02.11"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Deforel, Jorge Eduardo"]
[Result "0-1"]
[ECO "D46"]
[WhiteElo "1905"]
[BlackElo "2056"]
[PlyCount "104"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. e3 c6 5. Nf3 Nbd7 6. Qc2 Bd6 7. Bd3 0-0 8. 0-0 dxc4 9. Bxc4 b5 10. Be2 Bb7 11. e4 e5 12. dxe5 Nxe5 13. Nd4 Neg4 14. g3 Bc5 15. Nf5 Re8 16. Bxg4 Nxg4 17. Bf4 Qb6 18. h3 Ne5 19. Kg2 Bf8 20. f3 Qc5 21. Be3 Qc4 22. b3 Qe6 23. Rad1 Rac8 24. Bf4 h5 25. h4 Red8 26. Rd4 b4 27. Rfd1 Rxd4 28. Nxd4 Qe8 29. Bxe5 Qxe5 30. Nce2 g6 31. Nf4 a5 32. Nde2 Ba6 33. Nd3 Qf6 34. Ndf4 Bb5 35. Nd4 Ba6 36. Nde2 Bg7 37. Qd2 c5 38. Nd5 Qe5 39. Nef4 c4 40. Qf2 Rc6 41. Nh3 Bc8 42. bxc4 Bxh3+ 43. Kxh3 Rxc4 44. Qe2 Rd4 45. Rxd4 Qxd4 46. Qc2 Qg1 47. Qg2 Qd1 48. f4 Kh7 49. e5 Qd4 50. g4 Qd3+ 51. Kh2 hxg4 52. e6 fxe6 0-1

[Event "W-ch WS/H/710 email"]
[Site "ICCF email"]
[Date "2019.02.11"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Vuillemin, Gaston"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1905"]
[BlackElo "2097"]
[PlyCount "77"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 c5 7. cxd5 Nxd5 8. e4 Nb6 9. Nc3 cxd4 10. Nxd4 Nc6 11. Nxc6 bxc6 12. Qe2 e5 13. Rd1 Qe8 14. Be3 Be6 15. b3 Rc8 16. Qa6 Bb4 17. Rac1 Qe7 18. Na4 Nxa4 19. Qxa4 a5 20. Bf3 Rfd8 21. Rxd8+ Qxd8 22. Rd1 Qe7 23. h4 Qb7 24. Be2 Ra8 25. a3 h6 26. Rc1 Bf8 27. Qxc6 Qxc6 28. Rxc6 Bxa3 29. Bc4 Bxc4 30. Rxc4 Rb8 31. Rc3 Bb4 32. Rc7 f6 33. h5 Rd8 34. Bb6 Rd3 35. Rc8+ Kh7 36. Rc2 Rxb3 37. Ra2 g6 38. hxg6+ Kxg6 39. Bxa5 1/2-1/2

[Event "W-ch WS/H/710 email"]
[Site "ICCF email"]
[Date "2019.02.11"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Woodhouse, Stephen V"]
[Result "0-1"]
[ECO "A91"]
[WhiteElo "1905"]
[BlackElo "2078"]
[PlyCount "66"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nh3 0-0 6. 0-0 d6 7. b3 c6 8. Bb2 Qc7 9. Nd2 e5 10. e3 a5 11. a3 e4 12. Nf4 d5 13. h4 Bd6 14. Bh3 b5 15. c5 Bxf4 16. exf4 Ng4 17. Bxg4 fxg4 18. Qe2 Nd7 19. Qe3 Nf6 20. Rae1 b4 21. Ra1 Ba6 22. Rfe1 Qb7 23. axb4 axb4 24. Nf1 h6 25. Ra4 Bxf1 26. Rxf1 Rxa4 27. bxa4 Qa6 28. Ra1 Qd3 29. Bc1 b3 30. Bb2 Qc2 31. Qc3 e3 32. Qxc2 bxc2 33. fxe3 Rb8 0-1

[Event "W-ch WS/H/710 email"]
[Site "ICCF email"]
[Date "2019.02.11"]
[Round "?"]
[White "Merrheim, Xavier"]
[Black "Calkins, Donn"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2039"]
[BlackElo "1905"]
[PlyCount "24"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. h3 e5 7. Nb3 Be7 8. Be3 0-0 9. g4 Be6 10. g5 Nfd7 11. Qd2 a5 12. a4 Nc6 1/2-1/2

[Event "W-ch WS/H/710 email"]
[Site "ICCF email"]
[Date "2019.02.11"]
[Round "?"]
[White "Sabin, Florea"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "E32"]
[BlackElo "1905"]
[PlyCount "89"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7 8. f3 h6 9. Bh4 d6 10. e3 Nbd7 11. Bd3 e5 12. Ne2 g5 13. Bg3 e4 14. fxe4 Nxe4 15. Qc2 Qe7 16. 0-0 Ndf6 17. Rf3 Ng4 18. d5 Rae8 19. h3 Nxg3 20. Nxg3 Ne5 21. Bh7+ Kh8 22. Rf2 Nxc4 23. Qxc4 Kxh7 24. Qc2+ Kh8 25. Nf5 Qe5 26. Nxh6 f5 27. Raf1 Bc8 28. Qe2 Kg7 29. Qh5 f4 30. Ng4 Bxg4 31. Qxg4 Qxd5 32. exf4 Re4 33. h4 Qf5 34. Qxf5 Rxf5 35. hxg5 d5 36. g3 c5 37. Rh2 d4 38. Kf2 d3 39. Kf3 Rd4 40. Ke3 Rfd5 41. Kd2 Kg6 42. Rh6+ Kg7 43. f5 Kf7 44. Rh7+ Kg8 45. g6 1-0

[Event "W-ch WS/H/710 email"]
[Site "ICCF email"]
[Date "2019.02.11"]
[Round "?"]
[White "Taylor, Bobby C"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "A50"]
[WhiteElo "1918"]
[BlackElo "1905"]
[PlyCount "53"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 e6 8. Nf3 Be7 9. Bb2 0-0 10. Bd3 c5 11. d5 exd5 12. exd5 Qxd5 13. Bxh7+ Kh8 14. 0-0 Bf6 15. Rad1 Qh5 16. Be4 Bxe4 17. Qxe4 Na6 18. Qb7 Nb4 19. cxb4 Bxb2 20. Rd5 Qg6 21. bxc5 Qf6 22. Rd6 Qc3 23. Qe4 Rfd8 24. Ng5 Kg8 25. Qh7+ Kf8 26. Rfd1 Qf6 27. Qh8+ 1-0

[Event "W-ch WS/O/1123 email"]
[Site "ICCF email"]
[Date "2019.01.07"]
[Round "?"]
[White "Bourgault, Julien"]
[Black "Calkins, Donn"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1850"]
[BlackElo "1905"]
[PlyCount "73"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "5"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. f3 g6 4. Be3 Bg7 5. Qd2 0-0 6. Ne2 c5 7. Nbc3 Nc6 8. dxc5 dxc5 9. Qxd8 Rxd8 10. Bxc5 b6 11. Be3 Bb7 12. Rd1 Nb4 13. Rd2 Rxd2 14. Kxd2 Rd8+ 15. Kc1 Ne8 16. Nf4 Nd6 17. Be2 Rc8 18. Bd2 Bxc3 19. bxc3 Nc6 20. Nd5 f6 21. Rd1 Kf7 22. Bf4 Ne5 23. Bxe5 fxe5 24. Kb2 h5 25. Ne3 Rc5 26. h4 Kg7 27. c4 Bc6 28. Kc1 Ra5 29. Kb1 Rc5 30. Kb2 Ra5 31. Nd5 Kf7 32. Nb4 Bb7 33. Kb3 Ke6 34. g3 Rc5 35. Bf1 Ra5 36. Ra1 Kf6 37. Rd1 1/2-1/2

[Event "W-ch WS/O/1123 email"]
[Site "ICCF email"]
[Date "2019.01.07"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Batista Queiroz Da Silva, Eduardo"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1905"]
[PlyCount "34"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "5"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d5 4. e3 c5 5. Bd3 Nf6 6. c3 Nc6 7. Nd2 Bg4 8. Ngf3 e6 9. 0-0 Rc8 10. Qa4 Nd7 11. h3 Bh5 12. g4 Bg6 13. Bxg6 hxg6 14. h4 cxd4 15. cxd4 Bb4 16. Rad1 0-0 17. Qb5 Qb6 1/2-1/2

[Event "W-ch WS/O/1123 email"]
[Site "ICCF email"]
[Date "2019.01.07"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Elwood, David"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1905"]
[BlackElo "1851"]
[PlyCount "47"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "5"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 Nc6 4. f3 Nf6 5. e4 d6 6. Bb5 Bd7 7. Ne2 Nxd4 8. Bxd7+ Nxd7 9. Nxd4 e5 10. Be3 exd4 11. Bxd4 Be7 12. Nc3 Bf6 13. Nd5 Bxd4 14. Qxd4 0-0 15. 0-0-0 a5 16. g4 Nc5 17. h4 Ne6 18. Qc3 c6 19. Ne3 Rc8 20. Nf5 d5 21. exd5 cxd5 22. Qxc8 Qxc8 23. Ne7+ Kh8 24. Nxc8 1-0

[Event "W-ch WS/O/1123 email"]
[Site "ICCF email"]
[Date "2019.01.07"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Schenker, Leo"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1905"]
[BlackElo "1367"]
[PlyCount "61"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "5"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 e6 4. f3 g5 5. Bc1 Nd6 6. e4 Bg7 7. Nc3 b6 8. Be3 Ba6 9. Bd3 Bxd3 10. Qxd3 f5 11. e5 Nf7 12. 0-0-0 Qe7 13. g4 f4 14. Bf2 Nc6 15. Qa6 0-0 16. h4 h6 17. hxg5 hxg5 18. Rh5 Nb4 19. Qe2 d5 20. a3 Na6 21. Qxa6 c5 22. Nh3 c4 23. Rh1 Bh6 24. Nb5 Kg7 25. Nd6 Kg6 26. Nxf4+ gxf4 27. Nxf7 Rxf7 28. Rxh6+ Kg7 29. Rh7+ Kg6 30. R1h6+ Kg5 31. Bh4# 1-0

[Event "W-ch WS/O/1123 email"]
[Site "ICCF email"]
[Date "2019.01.07"]
[Round "?"]
[White "Sprusansky, Ferdinand"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "B15"]
[WhiteElo "1495"]
[BlackElo "1905"]
[PlyCount "70"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "5"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 e6 4. e5 a6 5. Nf3 c5 6. Be2 Nc6 7. 0-0 cxd4 8. Nxd4 Nxe5 9. Bf4 Bd6 10. Re1 Ng6 11. Bxd6 Qxd6 12. Bf3 N8e7 13. a3 Nf4 14. b4 0-0 15. Nce2 Nxe2+ 16. Rxe2 e5 17. Nb3 f5 18. Nc5 b6 19. Nb3 e4 20. Bh5 g6 21. Bxg6 Nxg6 22. g3 a5 23. c3 Ba6 24. Rd2 Bc4 25. bxa5 bxa5 26. Nd4 Ne5 27. Qh5 Qg6 28. Qh3 f4 29. Qe6+ Qxe6 30. Nxe6 Nf3+ 31. Kg2 Nxd2 32. Nxf8 Rxf8 33. Rd1 f3+ 34. Kg1 e3 35. fxe3 f2+ 0-1

[Event "W-ch WS/O/1123 email"]
[Site "ICCF email"]
[Date "2019.01.07"]
[Round "?"]
[White "Williams, Rufus H"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "D06"]
[WhiteElo "1072"]
[BlackElo "1905"]
[PlyCount "54"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "5"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. Nc3 Nf6 4. h3 e6 5. e3 c6 6. Bd3 Bxd3 7. Qxd3 Bb4 8. Bd2 0-0 9. a3 Bxc3 10. bxc3 Ne4 11. Bc1 Qh4 12. Qc2 Nd7 13. Nf3 Qh5 14. 0-0 Nb6 15. c5 Nc4 16. Bb2 b6 17. Bc1 bxc5 18. a4 a5 19. Ne5 Nxe5 20. dxe5 Qxe5 21. Bb2 Rfb8 22. Rab1 c4 23. Kh1 Nc5 24. Rfe1 Nd3 25. Qd2 Nxe1 26. Qxe1 Rb3 27. Ba1 Rab8 0-1

[Event "W-ch WS/O/1065 email"]
[Site "ICCF email"]
[Date "2018.04.04"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Britnell, Chris"]
[Result "1-0"]
[ECO "A50"]
[WhiteElo "1860"]
[PlyCount "51"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 b6 4. e4 Bb7 5. Bd3 Nc6 6. Nf3 Be7 7. e5 Ng4 8. h3 Nh6 9. d5 exd5 10. cxd5 Nb4 11. Be4 d6 12. Qa4+ Qd7 13. Qxb4 dxe5 14. Qc4 0-0 15. 0-0 Bd6 16. Bxh6 gxh6 17. Nh4 Kh8 18. Nf5 f6 19. Rfd1 Rac8 20. Nb5 a6 21. Nbxd6 cxd6 22. Qb4 Rcd8 23. Qxb6 Rf7 24. Rdc1 Rc8 25. Qxd6 Rxc1+ 26. Rxc1 1-0

[Event "W-ch WS/O/1065 email"]
[Site "ICCF email"]
[Date "2018.04.04"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Hunt, Joshua"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "1860"]
[BlackElo "1451"]
[PlyCount "59"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 c5 2. e4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e5 6. Bc4 Nf6 7. Ng5 d5 8. exd5 Nd4 9. 0-0 Bd6 10. Be3 0-0 11. Bxd4 exd4 12. Qxd4 Ng4 13. Nf3 b6 14. h3 Nf6 15. Rfe1 a6 16. Rad1 b5 17. Bd3 Bb7 18. Bf5 Bc8 19. Bxc8 Rxc8 20. Ng5 Rc4 21. Qd3 g6 22. b3 Rf4 23. Nce4 h6 24. Ne6 fxe6 25. Nxd6 Qxd6 26. Qxg6+ Kh8 27. dxe6 Qe7 28. Qxh6+ Nh7 29. Rd7 R4f6 30. Qh4 1-0

[Event "W-ch WS/O/1065 email"]
[Site "ICCF email"]
[Date "2018.04.04"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Vrzina, Milanko"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "1860"]
[PlyCount "77"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 dxc4 4. e4 e6 5. Bxc4 c5 6. d5 Be7 7. Bf4 exd5 8. exd5 Bd6 9. Qe2+ Kf8 10. Bxd6+ Qxd6 11. Nf3 a6 12. 0-0 b5 13. Bb3 Nbd7 14. a4 b4 15. Ne4 Nxe4 16. Qxe4 Bb7 17. Rfe1 Nf6 18. Qh4 h6 19. Rad1 Rd8 20. Ne5 g5 21. Qg3 Ba8 22. a5 Kg7 23. f4 Nh5 24. Qg4 Nxf4 25. Nxf7 Kxf7 26. Re6 Qd7 27. Rde1 Bxd5 28. Qf5+ Kg8 29. Rg6+ Nxg6 30. Qxg6+ Kf8 31. Rf1+ Qf5 32. Rxf5+ Ke7 33. Re5+ Kd7 34. Rxd5+ Kc8 35. Qxa6+ Kb8 36. Rxc5 Rhf8 37. Rb5+ Kc7 38. Rb7+ Kc8 39. Qc6# 1-0

[Event "W-ch WS/O/1065 email"]
[Site "ICCF email"]
[Date "2018.04.04"]
[Round "?"]
[White "Dimitrov, George"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "B01"]
[BlackElo "1860"]
[PlyCount "81"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. h3 Bxf3 7. Qxf3 c6 8. Bd2 Nbd7 9. 0-0-0 e6 10. Kb1 Bb4 11. a3 Bxc3 12. Bxc3 Qd5 13. Qxd5 Nxd5 14. Bd2 N7f6 15. Bd3 b5 16. Rhe1 0-0 17. f4 Rfb8 18. f5 exf5 19. Bxf5 a5 20. g4 g6 21. g5 gxf5 22. gxf6 b4 23. a4 Re8 24. Bh6 Re4 25. Rxe4 fxe4 26. Rg1+ Kh8 27. Rg5 Rd8 28. Kc1 e3 29. Re5 Nxf6 30. Rxa5 Nd5 31. Kd1 f6 32. Ra7 f5 33. a5 f4 34. Ke2 Re8 35. Rf7 Kg8 36. Rf5 Rb8 37. a6 Ra8 38. h4 Ne7 39. Rf8+ Rxf8 40. Bxf8 Kxf8 41. a7 1-0

[Event "W-ch WS/O/1065 email"]
[Site "ICCF email"]
[Date "2018.04.04"]
[Round "?"]
[White "Nilsson, Egon"]
[Black "Calkins, Donn"]
[Result "1/2-1/2"]
[ECO "B21"]
[WhiteElo "1720"]
[BlackElo "1860"]
[PlyCount "46"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. f4 d5 3. exd5 Nf6 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. c4 e6 7. dxe6 Qxe6+ 8. Qe2 Bd6 9. Qxe6+ fxe6 10. Nh3 0-0 11. Nc3 Nc6 12. 0-0 e5 13. Nb5 Rad8 14. Ng5 Rfe8 15. f5 a6 16. Nxd6 Rxd6 17. Ne6 Nd4 18. Nxc5 Nc2 19. Rb1 Rc8 20. Nxb7 Rb6 21. Na5 Na3 22. Ra1 Nc2 23. Rb1 Na3 1/2-1/2

[Event "W-ch WS/O/1065 email"]
[Site "ICCF email"]
[Date "2018.04.04"]
[Round "?"]
[White "Santus, Ulisse Angelo"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "C50"]
[BlackElo "1860"]
[PlyCount "56"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 d6 5. dxe5 dxe5 6. Qe2 Nf6 7. c3 a6 8. a4 0-0 9. 0-0 h6 10. h3 Bd6 11. Be3 Nxe4 12. Bxh6 gxh6 13. Qxe4 Kg7 14. Bd5 f5 15. Qc2 e4 16. Nfd2 Ne5 17. Rd1 Qf6 18. Na3 c6 19. Bc4 b5 20. Bf1 Bc7 21. b4 e3 22. fxe3 Be6 23. Nb3 Bxb3 24. Qxb3 f4 25. e4 f3 26. Qc2 f2+ 27. Kh1 Qf4 28. Qd2 Qg3 0-1

[Event "W-ch WS/O/1050 email"]
[Site "ICCF email"]
[Date "2018.01.23"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Harman, Kenneth B"]
[Result "1-0"]
[ECO "D72"]
[WhiteElo "1858"]
[BlackElo "1584"]
[PlyCount "43"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Bg7 6. e4 Nb6 7. Ne2 0-0 8. 0-0 Na6 9. Nbc3 c5 10. d5 e6 11. Nf4 exd5 12. Ncxd5 Nxd5 13. Nxd5 Nc7 14. Be3 Nxd5 15. exd5 Qd6 16. Rc1 b6 17. b4 cxb4 18. Bf4 Qd7 19. d6 Rb8 20. Bc6 Qd8 21. d7 Ba6 22. Re1 1-0

[Event "W-ch WS/O/1050 email"]
[Site "ICCF email"]
[Date "2018.01.23"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Hutman, Martin"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "1858"]
[BlackElo "1879"]
[PlyCount "73"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 e6 5. g3 dxc4 6. Qxc4 b5 7. Qd3 Bb7 8. Bg2 Nbd7 9. 0-0 a6 10. Be3 c5 11. dxc5 Bxc5 12. Bxc5 Nxc5 13. Qxd8+ Rxd8 14. Nbd2 Na4 15. Rab1 0-0 16. Rfc1 Rc8 17. Ne5 Rxc1+ 18. Rxc1 Bxg2 19. Kxg2 Nxb2 20. Rc6 Ra8 21. Rc7 Na4 22. f4 Rf8 23. e4 Rd8 24. Ndf3 Nxe4 25. Nxf7 Rf8 26. N3g5 Nec5 27. Ne5 h6 28. Ng6 hxg5 29. Nxf8 Kxf8 30. fxg5 Nd3 31. h4 g6 32. Ra7 Nac5 33. Ra8+ Ke7 34. Ra7+ Ke8 35. Ra8+ Kf7 36. Ra7+ Kg8 37. Ra8+ 1/2-1/2

[Event "W-ch WS/O/1050 email"]
[Site "ICCF email"]
[Date "2018.01.23"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Takahashi, Yoshihiro"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "1858"]
[BlackElo "1544"]
[PlyCount "59"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 Bb4+ 5. Nd2 Nc6 6. Ngf3 0-0 7. h3 d6 8. hxg4 Bxg4 9. a3 Bxd2+ 10. Qxd2 dxe5 11. Nxe5 Qxd2+ 12. Kxd2 Rad8+ 13. Nd3 Nd4 14. f3 Be6 15. Kc3 c6 16. e3 Nf5 17. Nc5 b5 18. e4 Ne7 19. Bg5 Rde8 20. Rd1 h6 21. Be3 a5 22. Nxe6 fxe6 23. Rd6 Rf6 24. Be2 Rg6 25. Rg1 Rc8 26. Bb6 a4 27. f4 Kf7 28. Bh5 Kg8 29. Bxg6 Nxg6 30. Rf1 1-0

[Event "W-ch WS/O/1050 email"]
[Site "ICCF email"]
[Date "2018.01.23"]
[Round "?"]
[White "Ciruelos Clerencia, Juan Manuel"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "B19"]
[WhiteElo "1619"]
[BlackElo "1858"]
[PlyCount "76"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bf4 Qa5+ 12. Bd2 Bb4 13. c3 Be7 14. c4 Qc7 15. Rc1 Ngf6 16. Qe2 0-0 17. b3 Rfd8 18. Be3 Bd6 19. Rh3 Bxg3 20. fxg3 e5 21. dxe5 Nxe5 22. Kf1 Neg4 23. Bf4 Qd7 24. Rh4 Re8 25. Qd2 Qe7 26. Re1 Qc5 27. Qd4 Rxe1+ 28. Kxe1 Qe7+ 29. Kf1 Re8 30. Qd2 Ne4 31. Qe1 Ngf2 32. Kg1 Qd7 33. Qc1 Qf5 34. Kh2 Ng4+ 35. Kh1 Nef2+ 36. Kg1 Nd3 37. Qd2 Nxf4 38. gxf4 Qb1+ 0-1

[Event "W-ch WS/O/1050 email"]
[Site "ICCF email"]
[Date "2018.01.23"]
[Round "?"]
[White "Klajnscak, Bostjan"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "1831"]
[BlackElo "1858"]
[PlyCount "89"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e6 2. Ne2 c5 3. d4 d5 4. exd5 exd5 5. Be3 Nf6 6. dxc5 Nbd7 7. Nbc3 Bxc5 8. Nf4 0-0 9. Nfxd5 Nxd5 10. Nxd5 Bxe3 11. Nxe3 Qb6 12. Qc1 Ne5 13. Be2 Be6 14. 0-0 Rad8 15. c4 Rd4 16. Qc3 Nc6 17. Bf3 Rfd8 18. Bd5 Qc5 19. Rad1 Bxd5 20. cxd5 Qxc3 21. bxc3 Rxd1 22. Rxd1 Ne5 23. f4 Nd7 24. Kf2 Nc5 25. Kf3 Kf8 26. Rd4 Ke7 27. g4 g6 28. c4 b6 29. h4 a6 30. g5 Kd6 31. Ng4 b5 32. Nf6 Rb8 33. h5 gxh5 34. Nxh5 b4 35. Ng3 a5 36. Rd1 b3 37. Nf5+ Kc7 38. axb3 Rxb3+ 39. Kg4 Ne4 40. Ra1 Nf2+ 41. Kh5 Rh3+ 42. Nh4 Kb6 43. c5+ Kxc5 44. Rxa5+ Kd6 45. Ra7 1-0

[Event "W-ch WS/O/1050 email"]
[Site "ICCF email"]
[Date "2018.01.23"]
[Round "?"]
[White "White, Rick"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "C43"]
[WhiteElo "1651"]
[BlackElo "1858"]
[PlyCount "74"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. dxe5 d5 5. c4 Bb4+ 6. Nbd2 Nc6 7. a3 Bc5 8. Nxe4 dxe4 9. Qxd8+ Nxd8 10. Ng5 Bf5 11. b4 Bd4 12. Ra2 Bc3+ 13. Bd2 Bxe5 14. c5 0-0 15. Be2 h6 16. Nh3 Ne6 17. g4 Bg6 18. f4 exf3 19. Bxf3 Nd4 20. Bxb7 Rab8 21. Bd5 Rbd8 22. Bg2 Bb1 23. Rb2 Bd3 24. Nf2 Nc2+ 25. Kd1 Bxb2 26. Nxd3 Ne3+ 27. Bxe3 Rxd3+ 28. Ke2 Rxa3 29. Rb1 Re8 30. Rxb2 Raxe3+ 31. Kf2 g5 32. Bc6 R8e6 33. Rd2 Rb3 34. b5 Re5 35. Rd7 Rxc5 36. Rxc7 Rc2+ 37. Kg1 Rb1# 0-1

[Event "W-ch WS/O/1020 email"]
[Site "ICCF email"]
[Date "2017.10.09"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Harman, Kenneth B"]
[Result "1-0"]
[ECO "E21"]
[WhiteElo "1864"]
[BlackElo "1685"]
[PlyCount "37"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 Bxc3+ 5. bxc3 d6 6. e3 Qe7 7. Bd3 e5 8. e4 Nc6 9. Rb1 h6 10. 0-0 b6 11. Bb2 Bd7 12. d5 Na5 13. c5 bxc5 14. c4 Nxc4 15. Bxc4 Nxe4 16. Re1 f5 17. Qc2 0-0 18. Nxe5 Be8 19. f3 1-0

[Event "W-ch WS/O/1020 email"]
[Site "ICCF email"]
[Date "2017.10.09"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Larionov, Sergey Aleksandrovi"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "1864"]
[PlyCount "53"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Be7 5. Bg2 0-0 6. 0-0 dxc4 7. Qc2 a6 8. a4 Bd7 9. Rd1 Bc6 10. Nc3 Bxf3 11. Bxf3 Nc6 12. Bxc6 bxc6 13. Bg5 Rb8 14. e3 h6 15. Bxf6 Bxf6 16. a5 Be7 17. Ra4 Rb4 18. Rxb4 Bxb4 19. Na2 Bxa5 20. Qxc4 Qd5 21. Rc1 Rd8 22. Nb4 Qxc4 23. Rxc4 Bxb4 24. Rxb4 Rd5 25. Rc4 Rb5 26. h4 Rb6 27. Ra4 1/2-1/2

[Event "W-ch WS/O/1020 email"]
[Site "ICCF email"]
[Date "2017.10.09"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Molina, Ruben"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "1864"]
[PlyCount "76"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 0-0 8. Qc2 h6 9. Bh4 Re8 10. Nge2 Nbd7 11. 0-0 Ne4 12. Bxe7 Qxe7 13. Bxe4 dxe4 14. Rfd1 f5 15. Rac1 Qf7 16. b3 b6 17. d5 c5 18. Nb5 Rd8 19. Nd6 Qf6 20. Nc4 Ne5 21. Nf4 Nf7 22. a4 g5 23. Nh5 Qg6 24. Ng3 Bb7 25. f3 Bxd5 26. fxe4 Bxe4 27. Nxe4 fxe4 28. Rf1 Rf8 29. a5 Rad8 30. axb6 axb6 31. b4 cxb4 32. Qb3 Qe6 33. Qxb4 Rc8 34. Qxb6 Rc6 35. Qb3 Rfc8 36. Nd2 Qxb3 37. Nxb3 Rxc1 38. Rxc1 Rxc1+ 1/2-1/2

[Event "W-ch WS/O/1020 email"]
[Site "ICCF email"]
[Date "2017.10.09"]
[Round "?"]
[White "Knox, Arthur"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "E38"]
[WhiteElo "1272"]
[BlackElo "1864"]
[PlyCount "50"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. Nf3 c5 6. e3 d5 7. Bd3 Nc6 8. a3 cxd4 9. exd4 dxc4 10. Bxc4 Nxd4 11. Nxd4 Qxd4 12. axb4 Qxc4 13. Qe2 Qxb4 14. 0-0 Bd7 15. Bg5 Bc6 16. Bxf6 gxf6 17. Rfe1 Rfd8 18. Ne4 f5 19. Nf6+ Kg7 20. Qh5 Kxf6 21. Qh6+ Ke7 22. Qg5+ Kf8 23. Qh6+ Ke8 24. Qg5 Qxb2 25. Qxf5 Qxa1 0-1

[Event "W-ch WS/O/1020 email"]
[Site "ICCF email"]
[Date "2017.10.09"]
[Round "?"]
[White "Malmstroem, Jan"]
[Black "Calkins, Donn"]
[Result "1/2-1/2"]
[ECO "B77"]
[WhiteElo "1834"]
[BlackElo "1864"]
[PlyCount "66"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 d6 9. f3 Bd7 10. Qd2 Nxd4 11. Bxd4 b5 12. 0-0 a5 13. a3 Qb8 14. Rfe1 Rc8 15. e5 dxe5 16. Bxe5 Qb7 17. Rad1 Rd8 18. Kh1 b4 19. axb4 Qxb4 20. Qd4 Bc6 21. Qxb4 axb4 22. Rxd8+ Rxd8 23. Na2 Bd5 24. Bxd5 Nxd5 25. Bxg7 Kxg7 26. Kg1 Rc8 27. c3 bxc3 28. Nxc3 Nxc3 29. bxc3 Kf6 30. Rc1 Rc4 31. Kf2 h5 32. h3 h4 33. Ke3 Ke5 1/2-1/2

[Event "W-ch WS/O/1020 email"]
[Site "ICCF email"]
[Date "2017.10.09"]
[Round "?"]
[White "Secondi, Alberto"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1582"]
[BlackElo "1864"]
[PlyCount "34"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. e3 d6 6. b4 c5 7. bxc5 dxc5 8. d5 Nxd5 9. Bb2 Nxc3 10. Qxd8 Rxd8 11. Rc1 Nxa2 12. Bxg7 Nxc1 13. Bb2 Nd3+ 14. Bxd3 Rxd3 15. Ke2 Rb3 16. Rb1 Bf5 17. Nd2 Bd3+ 0-1

[Event "W-ch WS/O/1013 email"]
[Site "ICCF email"]
[Date "2017.09.11"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Mesias Cornejo, Ruben Alberto"]
[Result "1-0"]
[ECO "E76"]
[WhiteElo "1856"]
[PlyCount "39"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. d4 c5 2. d5 Nf6 3. c4 d6 4. Nc3 g6 5. e4 Bg7 6. f4 0-0 7. Nf3 e6 8. dxe6 Bxe6 9. Bd3 Nc6 10. f5 Bd7 11. 0-0 a6 12. Bg5 Qa5 13. Nd5 Nxd5 14. exd5 Ne5 15. f6 Nxf3+ 16. Qxf3 Bh8 17. Qf4 Qc7 18. Qh4 b5 19. Qh6 bxc4 20. Rf4 1-0

[Event "W-ch WS/O/1013 email"]
[Site "ICCF email"]
[Date "2017.09.11"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Roth Jr, Peter"]
[Result "1/2-1/2"]
[ECO "E90"]
[WhiteElo "1856"]
[BlackElo "1719"]
[PlyCount "87"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. h3 Nbd7 7. Bg5 e5 8. d5 h6 9. Be3 Nc5 10. Nd2 a5 11. g4 c6 12. Be2 Bd7 13. h4 a4 14. g5 hxg5 15. hxg5 Nh7 16. Rg1 cxd5 17. cxd5 Qc7 18. Rc1 Rfc8 19. a3 Qb6 20. Nc4 Qc7 21. Bg4 Bxg4 22. Rxg4 Ra6 23. Bxc5 Qxc5 24. Nd2 Raa8 25. Nf3 Qb6 26. Qd2 Qb3 27. Rb1 Qc4 28. Qe2 Bf8 29. Qxc4 Rxc4 30. Ke2 Be7 31. Nd2 Rc5 32. f4 exf4 33. Nf3 Bf8 34. Rxf4 Bg7 35. Rh4 Re8 36. Kd3 b5 37. Rbh1 Nf8 38. e5 Bxe5 39. Nd4 Bxd4 40. Rxd4 Re5 41. Ne4 Nd7 42. Nxc5 dxc5 43. Re4 Rxd5+ 44. Ke2 1/2-1/2

[Event "W-ch WS/O/1013 email"]
[Site "ICCF email"]
[Date "2017.09.11"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Ugalde Garcia, Ronald"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "1856"]
[PlyCount "93"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 0-0 8. Qc2 h6 9. Bh4 Be6 10. Nge2 Nbd7 11. 0-0 Re8 12. Rac1 Nf8 13. Rfd1 Bg4 14. h3 Bh5 15. f3 Bg6 16. Bxg6 Nxg6 17. Bf2 Bd6 18. e4 dxe4 19. fxe4 Bc7 20. a4 Rc8 21. e5 Nd5 22. Ng3 Ngf4 23. Nxd5 Qxd5 24. Be3 Ng6 25. Rf1 Rcd8 26. Qf2 Ne7 27. b4 Bb6 28. Rcd1 a6 29. a5 Ba7 30. Kh1 Qe6 31. Qf3 Qg6 32. h4 Rf8 33. h5 Qe6 34. d5 Rxd5 35. Bxa7 Rfd8 36. Rxd5 Rxd5 37. Bb8 Rd4 38. Ne4 Nd5 39. Bd6 Nxb4 40. Nc5 Qc4 41. e6 Rh4+ 42. Bh2 f6 43. e7 Kf7 44. e8Q+ Kxe8 45. Re1+ Kf8 46. Qg3 Rxh2+ 47. Qxh2 1-0

[Event "W-ch WS/O/1013 email"]
[Site "ICCF email"]
[Date "2017.09.11"]
[Round "?"]
[White "Scavo, Santo"]
[Black "Calkins, Donn"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1452"]
[BlackElo "1856"]
[PlyCount "78"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Bd3 Bg6 5. Nf3 e6 6. Bxg6 hxg6 7. c3 Be7 8. Nbd2 g5 9. Nb3 Nd7 10. Be3 f5 11. exf6 gxf6 12. Qd3 Bd6 13. Qg6+ Kf8 14. 0-0-0 Ne7 15. Qc2 g4 16. Nfd2 Nf5 17. Nf1 a5 18. Ng3 Nxe3 19. fxe3 f5 20. Rdf1 a4 21. Nd2 Bxg3 22. hxg3 Kg7 23. Qd1 a3 24. b3 Qg5 25. Qe1 e5 26. dxe5 Rhe8 27. Rh4 Nxe5 28. Qe2 Ng6 29. Rh2 Rxe3 30. Qf2 Rae8 31. Rd1 Ne5 32. Kc2 Nd3 33. Qf1 Ne1+ 34. Rxe1 Rxe1 35. Qf4 Qxf4 36. gxf4 R8e3 37. Nf3 gxf3 38. g3 R1e2+ 39. Rxe2 fxe2 0-1

[Event "W-ch WS/O/1013 email"]
[Site "ICCF email"]
[Date "2017.09.11"]
[Round "?"]
[White "Schrade, Achim"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "A02"]
[BlackElo "1856"]
[PlyCount "75"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 Nc6 5. d4 Bg4 6. e3 Nf6 7. Bd3 0-0 8. 0-0 Nb4 9. e4 Bxf3 10. Qxf3 Be7 11. c3 Nxd3 12. Qxd3 c5 13. Nd2 cxd4 14. cxd4 Rc8 15. Nf3 Qc7 16. Bg5 Qc4 17. Qxc4 Rxc4 18. Rf2 h6 19. Bxf6 Bxf6 20. Rd1 Rfc8 21. e5 Bd8 22. Re2 Bb6 23. Kf2 f6 24. e6 g5 25. b3 R4c6 26. Kg3 h5 27. d5 Rd6 28. Rd3 h4+ 29. Kg4 Ba5 30. g3 hxg3 31. h4 gxh4 32. Nxh4 Bc7 33. Rc2 Rdd8 34. d6 Bxd6 35. Rxd6 Rb8 36. Rxd8+ Rxd8 37. Nf5 Re8 38. e7 1-0

[Event "W-ch WS/O/1013 email"]
[Site "ICCF email"]
[Date "2017.09.11"]
[Round "?"]
[White "Tombs, Samuel"]
[Black "Calkins, Donn"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "1776"]
[BlackElo "1856"]
[PlyCount "58"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. Nf3 c6 2. c4 d5 3. g3 Nf6 4. Bg2 dxc4 5. 0-0 Nbd7 6. Qc2 Nb6 7. Na3 Be6 8. Ne5 Qd4 9. Nxc6 bxc6 10. Bxc6+ Nfd7 11. Bxa8 Nxa8 12. d3 Bh3 13. dxc4 Bxf1 14. Be3 Qf6 15. Rxf1 e5 16. Nb5 Be7 17. Nxa7 0-0 18. Rd1 Qe6 19. Qe4 Nf6 20. Qc6 Ng4 21. Qxe6 fxe6 22. Nc6 Nxe3 23. fxe3 Bf6 24. b3 e4 25. a4 Rc8 26. Na7 Rb8 27. Nb5 Bg5 28. Kg2 Bxe3 29. Rd7 g5 1/2-1/2

[Event "W-ch WS/O/985 email"]
[Site "ICCF email"]
[Date "2017.05.05"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Dolzhikov, Aleksandr Anatoliev"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "1883"]
[PlyCount "74"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. Nc3 g6 4. Bg5 Bg7 5. Bxf6 Bxf6 6. e4 d6 7. e5 Bg7 8. Bb5+ c6 9. Bc4 a5 10. a3 b5 11. Bb3 dxe5 12. Nxe5 Bxe5 13. dxe5 Qxd1+ 14. Rxd1 Nd7 15. 0-0 Nc5 16. Rd2 Nxb3 17. cxb3 Be6 18. b4 axb4 19. axb4 Kf7 20. f4 Rhg8 21. g3 Bc4 22. Re1 g5 23. Rd4 Ke6 24. Kf2 gxf4 25. gxf4 Rg4 26. h3 Rg6 27. Rg1 Rxg1 28. Kxg1 Rg8+ 29. Kf2 Bd5 30. Nxd5 cxd5 31. b3 h5 32. Rd3 h4 33. Ke3 Rg1 34. Kd4 Rf1 35. Ke3 Re1+ 36. Kf3 Re4 37. Rc3 Rxb4 0-1

[Event "W-ch WS/O/985 email"]
[Site "ICCF email"]
[Date "2017.05.05"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Harman, Kenneth B"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "1883"]
[BlackElo "1554"]
[PlyCount "29"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 c5 4. Nc3 cxd4 5. Nxd4 Bg7 6. e4 d6 7. Be2 0-0 8. 0-0 Nc6 9. Be3 Nxd4 10. Bxd4 Be6 11. f4 Rc8 12. b3 Qa5 13. f5 gxf5 14. exf5 Bxf5 15. b4 1-0

[Event "W-ch WS/O/985 email"]
[Site "ICCF email"]
[Date "2017.05.05"]
[Round "?"]
[White "Calkins, Donn"]
[Black "Krol, Piotr"]
[Result "1/2-1/2"]
[ECO "D06"]
[WhiteElo "1883"]
[BlackElo "1612"]
[PlyCount "90"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c5 3. cxd5 Qxd5 4. Nf3 cxd4 5. Nc3 Qa5 6. Nxd4 Nf6 7. g3 e5 8. Nb3 Qc7 9. Bg2 Bb4 10. 0-0 Bxc3 11. bxc3 0-0 12. Qc2 Bg4 13. Be3 Nbd7 14. Rfd1 Rac8 15. Rac1 Be6 16. c4 b6 17. c5 Ng4 18. Bd2 Nxc5 19. Bb4 Bxb3 20. axb3 Qb8 21. Bc3 b5 22. h3 Nf6 23. Bb4 Na6 24. Qd2 Rxc1 25. Rxc1 Rd8 26. Qc3 Nxb4 27. Qxb4 e4 28. Qa5 h5 29. Rc5 Qd6 30. Qxa7 Qd1+ 31. Bf1 e3 32. Rxb5 Ne4 33. Rb8 exf2+ 34. Kg2 Qd6 35. Rxd8+ Qxd8 36. Qb7 f5 37. b4 Qf6 38. Qc7 h4 39. gxh4 Qg6+ 40. Kf3 Qh5+ 41. Kg2 Qg6+ 42. Kf3 Qh5+ 43. Kg2 Qg6+ 44. Kf3 Qh5+ 45. Kg2 Qg6+ 1/2-1/2

[Event "W-ch WS/O/985 email"]
[Site "ICCF email"]
[Date "2017.05.05"]
[Round "?"]
[White "Kaczmarek, Robert"]
[Black "Calkins, Donn"]
[Result "1-0"]
[ECO "E70"]
[BlackElo "1883"]
[PlyCount "69"]
[EventDate "2017.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Bd3 Nc6 6. Nge2 e5 7. d5 Nd4 8. f3 c5 9. Bg5 d6 10. 0-0 Bd7 11. Rb1 Qb6 12. b3 Rac8 13. Qd2 a6 14. Kh1 Qa5 15. Rb2 b5 16. cxb5 Nxb5 17. Rc1 Na3 18. Nb1 Qxd2 19. Bxd2 Bb5 20. Bc4 Nxc4 21. bxc4 Bd7 22. Rb6 Ne8 23. Rxa6 Rb8 24. Ra7 Bc8 25. Nec3 f5 26. a4 Rb7 27. Rxb7 Bxb7 28. Na3 f4 29. Rb1 Rf7 30. Kg1 Kf8 31. Nd1 h5 32. Rb6 Rd7 33. a5 Ke7 34. Nb5 g5 35. a6 1-0

