[Event "Berlin-ch"]
[Site "Berlin"]
[Date "1954.??.??"]
[Round "2"]
[White "Darga, Klaus"]
[Black "Koch, Wilhelm"]
[Result "0-1"]
[ECO "E14"]
[PlyCount "80"]
[EventDate "1954.03.29"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Be7 6. 0-0 0-0 7. Nc3 d5 8. b3 Ne4 9. Bb2 Nd7 10. Nd2 Nxc3 11. Bxc3 c5 12. Nf3 cxd4 13. exd4 dxc4 14. bxc4 Bf6 15. Qe2 Qc7 16. Qe3 Rfe8 17. Rfe1 Rad8 18. Ng5 Nf8 19. Ne4 Bxe4 20. Qxe4 Qd6 21. Rad1 Re7 22. Qf3 Red7 23. Re4 Ng6 24. Rg4 Qa3 25. Bb1 Ne5 26. Qxf6 Nxg4 27. Qf3 Ne5 28. Qg3 Ng6 29. h4 Qd6 30. Qd3 Nf8 31. Re1 Qf4 32. Re4 Qd6 33. Kh1 f5 34. Re3 Qa3 35. Rg3 Qe7 36. d5 Qxh4+ 37. Kg1 Qh5 38. dxe6 Rxd3 39. Rxg7+ Kh8 40. Bxd3 Rxd3 0-1

[Event "Berlin"]
[Site "Berlin"]
[Date "1950.??.??"]
[Round "1"]
[White "Cawi, Udo"]
[Black "Koch, Wilhelm"]
[Result "0-1"]
[ECO "A16"]
[PlyCount "70"]
[EventDate "1950.??.??"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 c6 3. Nc3 d5 4. cxd5 cxd5 5. Bg2 Nc6 6. d3 e6 7. Bf4 Be7 8. Nf3 0-0 9. 0-0 b6 10. Rc1 Bb7 11. d4 Rc8 12. Bd2 Ne4 13. Be1 f5 14. Ne5 Bd6 15. f4 Nxd4 16. Kh1 Bxe5 17. fxe5 Nc6 18. Nxe4 fxe4 19. Rxf8+ Qxf8 20. Bh3 Re8 21. Qa4 Nxe5 22. Bb4 Qf7 23. Rc7 Bc6 24. Qxa7 Qg6 25. Bc3 d4 26. Bxd4 e3+ 27. Kg1 Qb1+ 28. Bf1 Qe4 29. Rxc6 Qxd4 30. Rxb6 Nf3+ 31. Kh1 Qd1 32. Kg2 Nd2 33. Kh3 Qxf1+ 34. Kh4 Ne4 35. Rb5 Qxe2 0-1

[Event "Berlin"]
[Site "Berlin"]
[Date "1950.??.??"]
[Round "5"]
[White "Koch, Wilhelm"]
[Black "Euwe, Max"]
[Result "0-1"]
[ECO "B28"]
[PlyCount "108"]
[EventDate "1950.??.??"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nde2 Bc5 7. Ng3 d6 8. Be2 Be6 9. 0-0 0-0 10. Kh1 d5 11. exd5 Nxd5 12. Nxd5 Bxd5 13. Bf3 Bc4 14. Qxd8 Rxd8 15. Re1 Bxf2 16. Rxe5 Nc6 17. Re4 Bd5 18. Re2 Bxg3 19. hxg3 Bxf3 20. gxf3 Rd1+ 21. Kg2 Nd4 22. Rd2 Rxd2+ 23. Bxd2 Nxc2 24. Rc1 Rc8 25. a3 Rc6 26. Kf2 f6 27. a4 Nb4 28. Rxc6 Nxc6 29. Ke3 Kf7 30. Ke4 Ke6 31. Bc3 h5 32. b4 b5 33. axb5 axb5 34. f4 f5+ 35. Kd3 Kd5 36. Be1 Nd4 37. Bc3 Ne6 38. Bd2 Nc7 39. Bc3 Ne8 40. Bd4 Nf6 41. Be5 Ne4 42. Bxg7 Nxg3 43. Bf6 Ne4 44. Bh4 Nd6 45. Be1 Ne8 46. Bh4 Nc7 47. Be1 Ne6 48. Bd2 h4 49. Ke3 Kc4 50. Kf3 Nd4+ 51. Kg2 Nc2 52. Kh3 Kd3 53. Bc1 Nxb4 54. Kxh4 Ke4 0-1

[Event "Berlin-ch"]
[Site "Berlin"]
[Date "1950.??.??"]
[Round "1"]
[White "Koch, Wilhelm"]
[Black "Teschner, Rudolf"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "79"]
[EventDate "1950.??.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 cxd4 7. cxd4 Nh6 8. b3 Nf5 9. Bb2 Be7 10. h4 h5 11. g3 Bd7 12. Kf1 g6 13. Kg2 Rc8 14. Nc3 Ncxd4 15. Nxd4 Nxd4 16. Nxd5 exd5 17. Qxd4 Bc5 18. Qf4 Be6 19. Rac1 0-0 20. Bd3 d4 21. f3 Bd5 22. Qg5 a5 23. g4 Qc6 24. Kg3 Bxf3 25. Rhf1 hxg4 26. Bxd4 Bxd4 27. Rxc6 Rxc6 28. h5 Rc5 29. Re1 Re8 30. Bxg6 Bxe5+ 31. Rxe5 Rcxe5 32. Bf5+ Kf8 33. h6 Re2 34. h7 Rg2+ 35. Kf4 Rh2 36. Qf6 Rxh7 37. Bxh7 Re6 38. Qd8+ Kg7 39. Qg8+ Kh6 40. Bf5 1-0

[Event "Berlin-ch"]
[Site "Berlin"]
[Date "1950.??.??"]
[Round "6"]
[White "Richter, Kurt Paul"]
[Black "Koch, Wilhelm"]
[Result "1-0"]
[ECO "B40"]
[PlyCount "33"]
[EventDate "1950.??.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5 Nd5 7. Bd2 Nxc3 8. bxc3 Be7 9. Qg4 Kf8 10. Bd3 d6 11. f4 Nd7 12. 0-0 Nc5 13. f5 dxe5 14. fxe6 Bf6 15. Rxf6 Qxf6 16. Bg5 Bxe6 17. Qg3 1-0

[Event "Berlin-ch"]
[Site "Berlin"]
[Date "1930.05.13"]
[Round "5.2"]
[White "Koch, Wilhelm"]
[Black "Kreisberg, Leon"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "83"]
[EventDate "1930.05.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 e6 4. Nf3 d6 5. Be2 dxe5 6. Nxe5 Bd6 7. 0-0 0-0 8. c4 Ne7 9. b3 c6 10. Bb2 Nd7 11. Nd2 Qc7 12. Bd3 Bxe5 13. dxe5 Ng6 14. Nf3 Rd8 15. Qc2 Nc5 16. Bxg6 hxg6 17. Rad1 Bd7 18. Rd6 Be8 19. Rfd1 b6 20. Qc3 Nb7 21. Ng5 Qe7 22. h4 Nxd6 23. exd6 Qf6 24. Qxf6 gxf6 25. Ne4 f5 26. Nf6+ Kf8 27. Nh7+ Kg8 28. Nf6+ Kf8 29. f3 c5 30. Nh7+ Kg8 31. Nf6+ Kf8 32. g4 Bc6 33. Kf2 a5 34. a4 Ra7 35. h5 Kg7 36. Nd7+ Kg8 37. h6 Kh7 38. Nf6+ Kxh6 39. g5+ Kxg5 40. Nh7+ Kf4 41. Bc1+ Ke5 42. f4+ 1-0

[Event "Berlin-ch"]
[Site "Berlin"]
[Date "1930.05.06"]
[Round "3.3"]
[White "Koch, Wilhelm"]
[Black "Stueber, Erich"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "49"]
[EventDate "1930.05.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 0-0 6. Bg5 Be7 7. Qd2 d6 8. 0-0 Kh8 9. Rae1 Na5 10. Bb3 Nxb3 11. axb3 Be6 12. d4 exd4 13. Nxd4 Nd7 14. Bxe7 Qxe7 15. f4 f6 16. Nd5 Bxd5 17. exd5 Qf7 18. Ne6 Rfc8 19. Rf3 c6 20. Rfe3 cxd5 21. Qxd5 Rxc2 22. Nd8 Rxg2+ 23. Kh1 Rg1+ 24. Kxg1 Qg6+ 25. Rg3 1-0

[Event "Berlin-ch"]
[Site "Berlin"]
[Date "1930.05.02"]
[Round "2.3"]
[White "Koch, Berthold"]
[Black "Koch, Wilhelm"]
[Result "1-0"]
[ECO "D04"]
[PlyCount "75"]
[EventDate "1930.05.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. c4 Bxb1 5. Rxb1 c6 6. cxd5 Nxd5 7. Bd3 e6 8. 0-0 Be7 9. e4 Nf6 10. b3 Nbd7 11. Bb2 h6 12. Qe2 Qa5 13. a3 0-0 14. b4 Qh5 15. h3 Rfe8 16. Rfe1 Nf8 17. Qf1 N6d7 18. Re3 f6 19. Rbe1 Bd8 20. Qe2 Bb6 21. Bc4 Kh8 22. Rd3 Bc7 23. Ba2 Ng6 24. Ne5 Qxe2 25. Nxg6+ Kh7 26. Rxe2 Kxg6 27. g3 Rad8 28. f4 f5 29. Bxe6 Rxe6 30. exf5+ Kxf5 31. g4+ Kxf4 32. Bc1+ Re3 33. Rdxe3 Kg5 34. Re7+ Kh4 35. Kg2 Bb6 36. Be3 g6 37. Bxh6 Nf6 38. R2e5 1-0

[Event "Berlin-ch"]
[Site "Berlin"]
[Date "1930.05.01"]
[Round "1.4"]
[White "Koch, Wilhelm"]
[Black "Richter, Kurt Paul"]
[Result "0-1"]
[ECO "A34"]
[PlyCount "72"]
[EventDate "1930.05.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nb4 6. Bc4 Be6 7. Bxe6 Nd3+ 8. Kf1 fxe6 9. g3 Nc6 10. Kg2 g6 11. Ne1 Bh6 12. Nxd3 Qxd3 13. Qf1 0-0-0 14. Qxd3 Rxd3 15. f4 e5 16. Ne2 exf4 17. gxf4 Rf8 18. Rf1 Nd4 19. Nxd4 Rxd4 20. d3 Rxd3 21. f5 Bxc1 22. Raxc1 Rd2+ 23. Kg3 b6 24. b4 Rxa2 25. bxc5 b5 26. Ra1 Rxa1 27. Rxa1 Kb7 28. fxg6 hxg6 29. Rd1 a5 30. Rd7+ Kc6 31. Rxe7 Ra8 32. Re6+ Kxc5 33. Rxg6 a4 34. Kf4 a3 35. Rg1 a2 36. Ra1 Kb4 0-1

[Event "Berlin"]
[Site "Berlin"]
[Date "1930.??.??"]
[Round "?"]
[White "Bodenstein, Hugo"]
[Black "Koch, Wilhelm"]
[Result "1-0"]
[ECO "D16"]
[PlyCount "19"]
[EventDate "1930.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 dxc4 5. a4 Bf5 6. e3 Na6 7. Bxc4 Nb4 8. Ne5 Nc2+ 9. Qxc2 Bxc2 10. Bxf7# 1-0

[Event "Berlin-ch"]
[Site "Berlin"]
[Date "1928.??.??"]
[Round "3"]
[White "Richter, Kurt Paul"]
[Black "Koch, Wilhelm"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "59"]
[EventDate "1928.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. g3 a6 4. Bg2 Qc7 5. d3 d6 6. Nge2 b5 7. 0-0 Bb7 8. f4 Nf6 9. f5 e5 10. Nd5 Bxd5 11. exd5 Nbd7 12. a4 b4 13. a5 Rb8 14. c4 Be7 15. h3 h5 16. Kh2 Kd8 17. Re1 Kc8 18. d4 Kb7 19. dxe5 Nxe5 20. Nd4 Nfg4+ 21. hxg4 Nxg4+ 22. Kg1 cxd4 23. c5 Bf6 24. Bf4 Qxc5 25. Rc1 Qxa5 26. Bxd6 Rbc8 27. Bc7 Qb5 28. d6+ Ka7 29. Re7 d3 30. Bb6+ 1-0

[Event "Berlin-ch"]
[Site "Berlin"]
[Date "1925.03.11"]
[Round "?"]
[White "Adeler, Erhard"]
[Black "Koch, Wilhelm"]
[Result "1-0"]
[ECO "B40"]
[PlyCount "159"]
[EventDate "1925.03.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. Nf3 e6 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd2 Nc6 7. Nxc6 bxc6 8. e5 Bxc3 9. bxc3 Nd5 10. Qg4 Kf8 11. c4 Qc7 12. f4 Ne7 13. c5 a5 14. Qf3 g5 15. Bd3 h5 16. h3 Ba6 17. c4 Rb8 18. 0-0 g4 19. hxg4 hxg4 20. Qxg4 Rb2 21. Qe2 Qa7 22. Qf2 Nd5 23. Rab1 Rxa2 24. f5 Rxd2 25. Qxd2 Qxc5+ 26. Qf2 Qxf2+ 27. Rxf2 Nb4 28. fxe6 dxe6 29. Bg6 Kg7 30. Rxf7+ Kxg6 31. Rf6+ Kg5 32. Rb3 Rh4 33. Rf8 Kg6 34. Rg3+ Kh7 35. Rfg8 Nd3 36. R3g7+ Kh6 37. Ra7 Rxc4 38. Rxa6 Nxe5 39. Rxa5 Ng6 40. Re8 e5 41. Re6 Kg5 42. Ra6 Re4 43. Rexc6 Nf4 44. Rc8 Re1+ 45. Kh2 Re2 46. Rg8+ Kf5 47. Ra4 Rb2 48. Kg1 Nd3 49. Ra1 Ke4 50. Rga8 Ke3 51. R8a2 Rb8 52. Rf1 e4 53. g3 Rg8 54. Kg2 Rg7 55. Rf5 Rg8 56. Rf7 Rg6 57. Re7 Nf4+ 58. Kh2 Rh6+ 59. Kg1 Rg6 60. Ra3+ Nd3 61. Kg2 Rg8 62. Ra4 Rg4 63. Raa7 Rg6 64. Rg7 Rf6 65. Raf7 Ne1+ 66. Kh3 Rh6+ 67. Kg4 Nf3 68. Ra7 Re6 69. Ra4 Ke2 70. Kf5 Re5+ 71. Kf4 e3 72. Ra2+ Kf1 73. Kxf3 e2 74. Rxe2 Rxe2 75. g4 Ra2 76. Rb7 Ra3+ 77. Kf4 Kg2 78. g5 Ra4+ 79. Kf5 Kg3 80. g6 1-0

[Event "Berlin-ch"]
[Site "Berlin"]
[Date "1925.03.11"]
[Round "?"]
[White "Grammatikoff, Josef"]
[Black "Koch, Wilhelm"]
[Result "1/2-1/2"]
[ECO "B44"]
[PlyCount "20"]
[EventDate "1925.03.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c4 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nc3 Bb4 7. Nxc6 bxc6 8. f3 Nxe4 9. Bd3 Bxc3+ 10. bxc3 Qa5 1/2-1/2

[Event "Berlin-ch"]
[Site "Berlin"]
[Date "1925.03.11"]
[Round "?"]
[White "Koch, Wilhelm"]
[Black "Saemisch, Friedrich"]
[Result "0-1"]
[ECO "C57"]
[PlyCount "42"]
[EventDate "1925.03.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 b5 7. Bf1 Nxd5 8. cxd4 Qxg5 9. Bxb5+ Kd8 10. 0-0 Bb7 11. Qf3 exd4 12. d3 Qf6 13. Qg4 Bc8 14. Qe4 c6 15. Bg5 Qxg5 16. Bxc6 Nf4 17. Qxd4+ Kc7 18. Bf3 Bc5 19. Qc3 Bb7 20. Qa5+ Kb8 21. Nd2 Bxf3 0-1

