[Event "Amsterdam Seniors-Juniors"]
[Site "Amsterdam"]
[Date "1973.??.??"]
[Round "1"]
[White "Bredewout, Henk J"]
[Black "De Groot, Adriaan"]
[Result "1-0"]
[ECO "D01"]
[PlyCount "91"]
[EventDate "1973.03.??"]
[EventType "team"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 h6 5. Bf4 e6 6. Nb5 Bb4+ 7. c3 Ba5 8. b4 Bb6 9. a4 a5 10. e3 Ne4 11. Bd3 Ndf6 12. Qb3 0-0 13. 0-0 Bd7 14. Rfc1 Bxb5 15. Bxb5 g5 16. Bg3 h5 17. Bd3 h4 18. Be5 Ng4 19. Bxe4 dxe4 20. h3 exf3 21. hxg4 fxg2 22. Kxg2 Qe7 23. bxa5 Rxa5 24. c4 f6 25. Bh2 f5 26. f3 h3+ 27. Kg1 Qf6 28. c5 fxg4 29. cxb6 c6 30. f4 gxf4 31. Bxf4 g3 32. Rf1 Qg6 33. Qb1 Qg4 34. Qd1 Qh4 35. Qf3 g2 36. Rf2 Rxa4 37. Rxa4 h2+ 38. Bxh2 Rxf3 39. Rxf3 Qe1+ 40. Kxg2 Qe2+ 41. Kg3 Qb5 42. Ra8+ Kg7 43. Kg4 Kg6 44. Be5 Qe2 45. Raf8 c5 46. Kf4 1-0

[Event "Amsterdam Seniors-Juniors"]
[Site "Amsterdam"]
[Date "1973.??.??"]
[Round "2"]
[White "De Groot, Adriaan"]
[Black "Bredewout, Henk J"]
[Result "1/2-1/2"]
[ECO "C84"]
[PlyCount "57"]
[EventDate "1973.03.??"]
[EventType "team"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d4 d6 7. dxe5 Nxe4 8. Qd5 Nc5 9. Bxc6+ bxc6 10. Qxc6+ Bd7 11. Qd5 Be6 12. Qc6+ Bd7 13. Qd5 Be6 14. Qd4 dxe5 15. Qxe5 0-0 16. Nc3 Bd6 17. Qh5 Qd7 18. h3 Bf5 19. Be3 Bg6 20. Qd5 Ne4 21. Qc4 Nxc3 22. Qxc3 Rab8 23. Rad1 Qa4 24. Bd4 f6 25. Rc1 Qxa2 26. Ra1 Qe6 27. Rfe1 Qf5 28. Nh4 Qxc2 29. Nxg6 1/2-1/2

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.13"]
[Round "9"]
[White "De Groot, Adriaan"]
[Black "Van den Tol, Theo P"]
[Result "1/2-1/2"]
[ECO "C13"]
[PlyCount "36"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 7. Nf3 b6 8. Bd3 Bb7 9. Qe2 Nd7 10. 0-0-0 c6 11. Kb1 Qc7 12. c4 0-0-0 13. d5 Ne5 14. Nc3 Nxf3 15. Qxf3 Kb8 16. Rhe1 cxd5 17. cxd5 Bxd5 18. Nxd5 Rxd5 1/2-1/2

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.12"]
[Round "8"]
[White "De Groot, Adriaan"]
[Black "Van Scheltinga, Theo D"]
[Result "1-0"]
[ECO "B11"]
[PlyCount "63"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bh5 5. g4 Bg6 6. exd5 cxd5 7. Ne5 Nc6 8. Bb5 Rc8 9. d4 e6 10. h4 Qa5 11. h5 Be4 12. f3 Bb4 13. Bd2 f6 14. Nxc6 bxc6 15. Bf1 c5 16. fxe4 cxd4 17. Nb5 Bxd2+ 18. Qxd2 Qb6 19. Qxd4 Rxc2 20. Qxb6 axb6 21. exd5 exd5 22. Rb1 Nh6 23. Nd4 Rc7 24. Bb5+ Kf7 25. g5 Re7+ 26. Kd2 Re4 27. Kd3 fxg5 28. Bc6 Re5 29. Rhf1+ Ke7 30. Bb5 Re4 31. Rbc1 Ng4 32. Rc7+ 1-0

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.11"]
[Round "7"]
[White "Stoltz, Gosta"]
[Black "De Groot, Adriaan"]
[Result "1-0"]
[ECO "D74"]
[PlyCount "97"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Bg7 6. Nf3 0-0 7. 0-0 Nc6 8. Nc3 Nxc3 9. bxc3 e5 10. Ba3 Re8 11. d5 Na5 12. Nd2 b6 13. e4 Ba6 14. Re1 c5 15. Bf1 Bxf1 16. Nxf1 Nc4 17. Bc1 Nd6 18. a4 f5 19. f3 Rf8 20. Ra2 Rf7 21. h4 Qd7 22. Rg2 Raf8 23. Qc2 fxe4 24. fxe4 Qg4 25. Nh2 Qh3 26. Qd1 h5 27. Bg5 Kh7 28. Re3 Nc4 29. Rd3 Rf2 30. Rxf2 Rxf2 31. Kxf2 Qxh2+ 32. Kf3 Nb2 33. Rd2 Qh3 34. Qe1 Nc4 35. Rf2 Nd6 36. Be7 Qg4+ 37. Kg2 Nxe4 38. Rf3 g5 39. Re3 Nf6 40. Rxe5 gxh4 41. Bxf6 Bxf6 42. Qe4+ Kg7 43. Qxg4+ hxg4 44. Re4 h3+ 45. Kh2 Bxc3 46. d6 a6 47. d7 Bf6 48. Rxg4+ Kf7 49. Rf4 1-0

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.10"]
[Round "6"]
[White "Kramer, Haije J"]
[Black "De Groot, Adriaan"]
[Result "1-0"]
[ECO "D96"]
[PlyCount "81"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 dxc4 7. Qxc4 Qb6 8. e4 Be6 9. Qd3 Na6 10. Be2 0-0 11. 0-0 Rad8 12. Qc2 Nb4 13. Qc1 Rc8 14. Rd1 a5 15. h3 Qa7 16. Be5 h6 17. Kh1 Kh7 18. Nh2 Ne8 19. Bxg7 Nxg7 20. a3 Na6 21. Qe3 Rcd8 22. b4 Bb3 23. Rd2 Nc7 24. b5 cxb5 25. Nxb5 Nxb5 26. Bxb5 a4 27. Ng4 h5 28. Ne5 Ne6 29. Nd7 Rg8 30. Qc3 f6 31. Qb4 Rg7 32. d5 Nf8 33. Nc5 e6 34. Nxb3 axb3 35. d6 Nd7 36. Qxb3 Qc5 37. a4 Qe5 38. Rc1 Nc5 39. Qe3 Nxe4 40. f4 Qf5 41. Bd3 1-0

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.09"]
[Round "5"]
[White "De Groot, Adriaan"]
[Black "Van Steenis, Hendrik Jan"]
[Result "0-1"]
[ECO "D29"]
[PlyCount "80"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 a6 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 Nbd7 9. 0-0 Bb7 10. Qe2 c5 11. Rd1 Qc7 12. d5 exd5 13. Nxd5 Nxd5 14. Bxd5 Bxd5 15. Rxd5 Be7 16. e4 Nb6 17. Rf5 g6 18. Rf4 Rd8 19. e5 Qd7 20. Bd2 0-0 21. Ba5 Qe6 22. Re4 Rb8 23. h4 h6 24. Bd2 Kg7 25. Nh2 Rfd8 26. h5 Nc4 27. Bc3 Kh7 28. a4 Rb7 29. Rf1 Rbd7 30. f4 Nd2 31. hxg6+ fxg6 32. axb5 Nxf1 33. Nxf1 axb5 34. Qxb5 Rd1 35. Qc4 Qf5 36. Kf2 Bh4+ 37. g3 Rxf1+ 38. Kxf1 Qh3+ 39. Kg1 Qxg3+ 40. Kh1 Qf3+ 0-1

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.08"]
[Round "4"]
[White "Koomen, Willem"]
[Black "De Groot, Adriaan"]
[Result "1-0"]
[ECO "D95"]
[PlyCount "101"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. e3 0-0 6. Qb3 c6 7. Bd2 e6 8. Bd3 Nbd7 9. 0-0 Nb6 10. cxd5 exd5 11. Ne2 a5 12. a4 Ne4 13. Ng3 Nxd2 14. Nxd2 Re8 15. Qc2 Nd7 16. Nb3 Qh4 17. Rfe1 Nf6 18. Nd2 Ng4 19. Nf3 Qd8 20. h3 Nh6 21. Rab1 f5 22. Qd2 Bf8 23. Ne2 Nf7 24. Qc2 Bb4 25. Red1 Qf6 26. Nf4 Bd6 27. h4 Re7 28. Rbc1 Be6 29. g3 Rae8 30. Kg2 Bc8 31. Qc3 Bb4 32. Qb3 Nh6 33. Rc2 Ng4 34. Rdc1 Be6 35. Ng5 Bf7 36. Re2 Bd6 37. Rce1 h6 38. Nf3 g5 39. hxg5 hxg5 40. Nh3 Nxe3+ 41. Rxe3 g4 42. Rxe7 Rxe7 43. Rxe7 gxf3+ 44. Kh2 Bxe7 45. Qxb7 Kg7 46. Bxf5 Bd6 47. Qd7 c5 48. Bg4 cxd4 49. Bh5 Be5 50. Qg4+ Kh6 51. Bxf7 1-0

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.07"]
[Round "3"]
[White "De Groot, Adriaan"]
[Black "Vlagsma, Chris"]
[Result "1-0"]
[ECO "C82"]
[PlyCount "80"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Qe2 0-0 11. Be3 Qe7 12. h3 Bxe3 13. Qxe3 Na5 14. Nbd2 Nxd2 15. Nxd2 Rad8 16. f4 f5 17. exf6 Qxf6 18. Rae1 Bf7 19. Qc5 Qd6 20. Qf2 c5 21. Bc2 d4 22. Ne4 Qc6 23. Qh4 d3 24. Ng5 h6 25. Nxf7 Kxf7 26. Bd1 Kg8 27. f5 Qf6 28. Qg3 c4 29. Qc7 Nc6 30. Re6 Rc8 31. Qb6 Qg5 32. Rxc6 Rxc6 33. Qxc6 Qe3+ 34. Kh1 Qd2 35. Qe6+ Kh8 36. Qe7 Rg8 37. f6 gxf6 38. Qxf6+ Rg7 39. Bf3 Qg5 40. Qxg5 hxg5 1-0

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.06"]
[Round "2"]
[White "Cortlever, Nicolaas"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]
[ECO "D96"]
[PlyCount "46"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 c6 6. Bf4 dxc4 7. Qxc4 Qb6 8. Qb3 Qxb3 9. axb3 Be6 10. Bxb8 Rxb8 11. b4 Nd5 12. Nxd5 Bxd5 13. e3 a6 14. Bd3 Bxf3 15. gxf3 e5 16. dxe5 Bxe5 17. Ra2 Ke7 18. Ke2 Ra8 19. b3 Bc3 20. Ra4 b5 21. Ra2 Bxb4 22. Be4 Rhc8 23. Rc1 a5 1/2-1/2

[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1946.01.05"]
[Round "1"]
[White "De Groot, Adriaan"]
[Black "O'Kelly de Galway, Alberic"]
[Result "1-0"]
[ECO "C65"]
[PlyCount "59"]
[EventDate "1946.01.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Bc5 5. Nxe5 Nxe5 6. d4 c6 7. dxe5 Nxe4 8. Bd3 d5 9. Qf3 Qh4 10. g3 Ng5 11. Qd1 Nh3+ 12. Kg2 Qe7 13. f4 h5 14. Nc3 g5 15. f5 g4 16. Qe2 Bd7 17. Na4 Bb6 18. b4 0-0-0 19. Nxb6+ axb6 20. a4 Rhe8 21. a5 bxa5 22. Bb2 d4 23. Rxa5 Qxb4 24. Ra8+ Kc7 25. Ba3 c5 26. Bxb4 Rxa8 27. e6 Bc6+ 28. Be4 cxb4 29. Bxc6 bxc6 30. Qe5+ 1-0

[Event "NED-ch12 sf playoff"]
[Site "Leeuwarden"]
[Date "1942.08.09"]
[Round "1"]
[White "De Groot, Adriaan"]
[Black "Van den Hoek, Arnoldus"]
[Result "0-1"]
[ECO "A22"]
[PlyCount "84"]
[EventDate "1942.08.09"]
[EventType "tourn"]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nh3 Bf5 7. 0-0 Qd7 8. Ng5 Be7 9. d3 Nc6 10. a3 0-0 11. b4 Rab8 12. Nge4 Be6 13. Ng5 Bf5 14. Rb1 Nd4 15. a4 c6 16. Re1 Nd5 17. Nxd5 cxd5 18. Nf3 Nxf3+ 19. Bxf3 Rfc8 20. Qb3 Be6 21. a5 b6 22. axb6 Rxb6 23. Bd2 a5 24. b5 Bb4 25. Bxb4 Rxb5 26. Qa4 Rcb8 27. Qa1 axb4 28. Qxe5 d4 29. Qf4 b3 30. Rb2 Rc8 31. Ra1 Rbc5 32. h4 h6 33. Kh2 Rc2 34. Rxc2 Rxc2 35. Ra8+ Rc8 36. Rxc8+ Qxc8 37. Qxd4 Qb8 38. Qb2 Qa7 39. Kg2 Qa2 40. Qd4 b2 41. Be4 f5 42. g4 fxe4 0-1

[Event "NED-ch12 sf"]
[Site "Leeuwarden"]
[Date "1942.08.08"]
[Round "7"]
[White "De Groot, Adriaan"]
[Black "Cortlever, Nicolaas"]
[Result "1-0"]
[ECO "A22"]
[PlyCount "69"]
[EventDate "1942.08.02"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nh3 Be7 7. 0-0 Nc6 8. f4 Bg4 9. Nf2 Bc8 10. fxe5 Nxe5 11. d4 Nc6 12. e3 0-0 13. Nd3 Rb8 14. b3 Nb4 15. Nf4 c5 16. d5 Bf6 17. Bb2 Nd7 18. a3 Na6 19. Qd2 Nc7 20. Rad1 Be5 21. Nd3 b6 22. Nxe5 Nxe5 23. d6 Ne6 24. Nd5 Ng6 25. h4 Re8 26. Qf2 Rb7 27. h5 Ngf8 28. h6 Rd7 29. hxg7 Nxg7 30. Nf6+ Kh8 31. Nxd7 Qxd7 32. Qxf7 Nfe6 33. Bxg7+ Nxg7 34. Qf8+ Rxf8 35. Rxf8# 1-0

[Event "NED-ch12 sf"]
[Site "Leeuwarden"]
[Date "1942.08.05"]
[Round "4"]
[White "De Groot, Adriaan"]
[Black "Van Scheltinga, Theo D"]
[Result "0-1"]
[ECO "B18"]
[PlyCount "62"]
[EventDate "1942.08.02"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. d4 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bd3 Ngf6 8. 0-0 e6 9. Re1 Be7 10. c4 0-0 11. Bxg6 hxg6 12. Bd2 Rc8 13. Qa4 Nb6 14. Qc2 c5 15. dxc5 Bxc5 16. b3 Nbd5 17. Rad1 Qb6 18. Bc1 Nb4 19. Qe2 Nc6 20. Be3 Rfd8 21. Bxc5 Qxc5 22. h3 a5 23. Ne4 Nxe4 24. Qxe4 Qa3 25. Ng5 Rxd1 26. Rxd1 Rd8 27. Rxd8+ Nxd8 28. Qe3 Qxa2 29. Qd4 Nc6 30. Qd7 Qa1+ 31. Kh2 Qe5+ 0-1

[Event "NED-chT 4041"]
[Site "Netherlands"]
[Date "1941.01.04"]
[Round "4.3"]
[White "De Groot, Adriaan"]
[Black "Spinhoven, Freek"]
[Result "1-0"]
[ECO "B72"]
[PlyCount "45"]
[EventDate "1940.10.19"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam VAS"]
[BlackTeam "Amsterdam ASC"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. h3 g6 7. Be3 Bg7 8. Qd2 0-0 9. 0-0-0 Bd7 10. g4 Rc8 11. g5 Ne8 12. h4 Qa5 13. Kb1 Nc7 14. Nb3 Qb4 15. h5 Ne6 16. f4 Na5 17. Nd5 Qxe4 18. Nxe7+ Kh8 19. Bd3 Nxb3 20. axb3 Qxh1 21. Rxh1 Rce8 22. hxg6 Rxe7 23. f5 1-0

[Event "Amsterdam VVGA"]
[Site "Amsterdam"]
[Date "1940.04.19"]
[Round "4"]
[White "De Groot, Adriaan"]
[Black "Crabbendam, Henrico"]
[Result "1-0"]
[ECO "B05"]
[PlyCount "49"]
[EventDate "1940.04.06"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. 0-0 Bxf3 7. Bxf3 c6 8. exd6 Bxd6 9. Nd2 0-0 10. Ne4 Bf4 11. Nc5 Bxc1 12. Rxc1 Qb6 13. c4 Nf6 14. Rc3 Qxb2 15. Qd3 Qb6 16. Rb1 Qd8 17. Rxb7 Qc8 18. Rcb3 Nbd7 19. Ne4 Nxe4 20. Bxe4 h6 21. c5 Rd8 22. Qf3 f5 23. Bd3 Nb8 24. Qg3 g5 25. Qe5 1-0

[Event "Amsterdam VVGA"]
[Site "Amsterdam"]
[Date "1940.04.16"]
[Round "3"]
[White "Felderhof, Hendrik Willem"]
[Black "De Groot, Adriaan"]
[Result "0-1"]
[ECO "B66"]
[PlyCount "44"]
[EventDate "1940.04.06"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Be7 8. 0-0-0 a6 9. Nb3 b5 10. f3 Bb7 11. Kb1 Ne5 12. Bf4 0-0 13. Qe1 Qc7 14. Bd3 Rfc8 15. Qe2 b4 16. Na4 Nxd3 17. Qxd3 Bc6 18. Nbc5 Bb5 19. Bxd6 Bxd3 20. Bxc7 Bxc2+ 21. Kxc2 Rxc7 22. e5 Nd5 0-1

[Event "Amsterdam VVGA"]
[Site "Amsterdam"]
[Date "1940.04.10"]
[Round "2"]
[White "Van Scheltinga, Theo D"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]
[ECO "D45"]
[PlyCount "69"]
[EventDate "1940.04.06"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. Nc3 e6 5. d4 a6 6. c5 Nbd7 7. b4 Qe7 8. Bb2 e5 9. dxe5 Nxe5 10. Nxe5 Qxe5 11. Na4 Qe4 12. Qd4 Bf5 13. f3 Qxd4 14. Bxd4 Nd7 15. 0-0-0 h5 16. e4 dxe4 17. Bc4 Rh6 18. Rhe1 Rg6 19. Nc3 0-0-0 20. g4 Be6 21. gxh5 Rh6 22. Bxe6 fxe6 23. Rxe4 Rxh5 24. Rxe6 Rxh2 25. Rg6 Rh3 26. Bxg7 Rxf3 27. Ne4 Rf7 28. Bxf8 Rfxf8 29. Nd6+ Kc7 30. Rg7 Rf4 31. a3 a5 32. Nxb7 Kxb7 33. Rgxd7+ Rxd7 34. Rxd7+ Ka6 35. bxa5 1/2-1/2

[Event "Amsterdam VAS"]
[Site "Amsterdam"]
[Date "1940.02.07"]
[Round "?"]
[White "De Groot, Adriaan"]
[Black "Kmoch, Hans"]
[Result "1/2-1/2"]
[ECO "C91"]
[PlyCount "90"]
[EventDate "1940.01.24"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d4 Bg4 10. Be3 exd4 11. cxd4 Na5 12. Bc2 Nc4 13. Bc1 c5 14. b3 Na5 15. Nbd2 Nc6 16. h3 Bh5 17. g4 Bg6 18. d5 Nb4 19. Bb1 Nd7 20. Bb2 Bf6 21. Qc1 c4 22. bxc4 bxc4 23. Nxc4 Rc8 24. a3 Rxc4 25. Qd2 Nc2 26. Bxc2 Bxb2 27. Ra2 Qf6 28. Bd3 Bc3 29. Qe3 Bxe1 30. Bxc4 Bc3 31. g5 Qe7 32. Qxc3 Rc8 33. Qd4 Qxe4 34. Qxe4 Bxe4 35. Nd2 Bf5 36. Bxa6 Rc1+ 37. Kg2 Nc5 38. Be2 Na4 39. Bf3 Kf8 40. Nf1 Bd3 41. Ne3 Ke7 42. Bg4 f6 43. Bf5 Rc3 44. Rd2 Nc5 45. Bxd3 Nxd3 1/2-1/2

[Event "NED-chT 1939/40"]
[Site "Netherlands"]
[Date "1940.01.28"]
[Round "3.2"]
[White "De Groot, Adriaan"]
[Black "Kmoch, Hans"]
[Result "1/2-1/2"]
[ECO "C91"]
[PlyCount "106"]
[EventDate "1939.11.05"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam VAS"]
[BlackTeam "Amsterdam ASC"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d4 Bg4 10. Be3 Re8 11. Nbd2 d5 12. h3 exd4 13. cxd4 Bxf3 14. Qxf3 Bb4 15. e5 Bxd2 16. exf6 Bxe1 17. Bxd5 Nxd4 18. Bxd4 c6 19. Qg4 g6 20. Bxc6 Bb4 21. Bxa8 Qxa8 22. Rc1 Bf8 23. Be3 Qd5 24. Rc8 h5 25. Rxe8 hxg4 26. Bh6 Qd1+ 27. Kh2 Qd6+ 28. g3 Qxf6 29. Rxf8+ Kh7 30. Be3 Kg7 31. Ra8 gxh3 32. Kxh3 Qe6+ 33. Kh2 Kf6 34. a3 Kf5 35. Rd8 Kg4 36. Kg2 Qc6+ 37. Kh2 Kf3 38. Rd4 f5 39. Rf4+ Ke2 40. Rd4 Qc8 41. Rd2+ Kf3 42. Rd4 Qh8+ 43. Kg1 g5 44. Rd3 Ke4 45. Rb3 Qh5 46. Kg2 Qf3+ 47. Kh2 Qh5+ 48. Kg2 Qf3+ 49. Kh2 Kd5 50. Rb4 Qh5+ 51. Kg2 Qg6 52. Kh2 Qg7 53. Kh3 Kc6 1/2-1/2

[Event "Amsterdam VAS"]
[Site "Amsterdam"]
[Date "1940.01.27"]
[Round "?"]
[White "Prins, Lodewijk"]
[Black "De Groot, Adriaan"]
[Result "0-1"]
[ECO "E40"]
[PlyCount "66"]
[EventDate "1940.01.24"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Qa4+ Nc6 6. Bd3 0-0 7. Nge2 e5 8. cxd5 Nxd5 9. 0-0 exd4 10. Nxd5 Qxd5 11. Bb5 Bd7 12. Nxd4 Nxd4 13. Bxd7 Ne2+ 14. Kh1 Bd6 15. f4 Rad8 16. e4 Qh5 17. Bh3 Bc5 18. Qb3 Rd4 19. e5 Rfd8 20. Qc2 Rd1 21. Bd2 R8xd2 22. Qxc5 Rxa1 23. Rxa1 Nxf4 24. Qxa7 Rd1+ 25. Rxd1 Qxd1+ 26. Qg1 Qxg1+ 27. Kxg1 Nxh3+ 28. gxh3 f6 29. exf6 gxf6 30. Kf2 Kf7 31. Ke3 c5 32. a4 Ke6 33. Kf4 h6 0-1

[Event "Olympiad-08 Final A"]
[Site "Buenos Aires"]
[Date "1939.09.18"]
[Round "15"]
[White "De Groot, Adriaan"]
[Black "Engels, Ludwig"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "62"]
[EventDate "1939.09.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Germany"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. exd5 exd5 6. Bd3 c6 7. Nge2 Na6 8. a3 h6 9. Bf4 Nc7 10. Ng3 Ne6 11. Nce2 Nxf4 12. Nxf4 Qb6 13. Bf5 Qxb2 14. 0-0 Qb6 15. Re1 Kf8 16. Qf3 Qc7 17. Re3 Bd6 18. Nfh5 Nxh5 19. Nxh5 Bxf5 20. Qxf5 g6 21. Qf6 Rh7 22. Ng3 Bf4 23. Rf3 Bxg3 24. hxg3 Rg7 25. Re1 Qd8 26. Qf4 Qg5 27. Qd6+ Kg8 28. Rfe3 Qd8 29. Qf4 g5 30. Qf5 Qc8 31. Qf3 Qf8 1/2-1/2

[Event "Olympiad-08 Final A"]
[Site "Buenos Aires"]
[Date "1939.09.16"]
[Round "14"]
[White "Guimard, Carlos Enrique"]
[Black "De Groot, Adriaan"]
[Result "0-1"]
[ECO "D30"]
[PlyCount "78"]
[EventDate "1939.09.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Argentina"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ARG"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. dxc5 e6 5. a3 Bxc5 6. c4 0-0 7. b4 Bb6 8. Bb2 Qe7 9. Nbd2 a5 10. Be2 Rd8 11. 0-0 dxc4 12. Qb1 axb4 13. axb4 Rxa1 14. Qxa1 Bd7 15. Bxc4 Bc6 16. b5 Bd5 17. Be2 Nbd7 18. Nc4 Bc5 19. Nfe5 Nxe5 20. Nxe5 Ne8 21. Rc1 f6 22. Nd3 Bd6 23. Nf4 Bxf4 24. exf4 Qb4 25. Bf1 Qxf4 26. Qa5 Qb8 27. Qb4 Qd6 28. Qh4 h6 29. Rc3 Qd7 30. Rg3 Kh8 31. Bc1 Kh7 32. Bd3+ f5 33. Qh5 Be4 34. Bxh6 Kg8 35. Bf1 Qf7 36. Qh4 Rd1 37. Bf4 e5 38. Bxe5 Qc4 39. h3 Qxf1+ 0-1

[Event "Olympiad-08 Final A"]
[Site "Buenos Aires"]
[Date "1939.09.15"]
[Round "13"]
[White "De Groot, Adriaan"]
[Black "Pelikan, Jorge"]
[Result "0-1"]
[ECO "B76"]
[PlyCount "82"]
[EventDate "1939.09.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Czechoslovakia"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "CSR"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. Qd2 0-0 9. f3 d5 10. Nxd5 Nxd5 11. exd5 Qxd5 12. c4 Qd6 13. Rd1 Nxd4 14. Bxd4 Bxd4 15. Qxd4 Qxd4 16. Rxd4 Be6 17. Kf2 Rfc8 18. a3 Rc7 19. Rc1 Rac8 20. Rc3 b6 21. f4 h5 22. Rd1 Kg7 23. Rdc1 Kf6 24. h4 Kf5 25. Ke3 Rc6 26. b4 Bd5 27. g3 e5 28. Bd3+ Kf6 29. c5 bxc5 30. Rxc5 Ke6 31. fxe5 Kxe5 32. Rxd5+ Kxd5 33. Be4+ Kd6 34. Rxc6+ Rxc6 35. Bxc6 Kxc6 36. a4 Kd5 37. Kd3 f6 38. Kc3 g5 39. a5 gxh4 40. gxh4 a6 41. b5 axb5 0-1

[Event "Olympiad-08 Final A"]
[Site "Buenos Aires"]
[Date "1939.09.14"]
[Round "12"]
[White "De Groot, Adriaan"]
[Black "Vaitonis, Paul"]
[Result "1-0"]
[ECO "B84"]
[PlyCount "77"]
[EventDate "1939.09.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Lithuania"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "LTU"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 a6 7. 0-0 Qc7 8. f4 Nbd7 9. Kh1 b5 10. Bf3 Bb7 11. a3 Rc8 12. Qe1 h5 13. Bd2 Nb6 14. Rd1 g6 15. e5 Bxf3 16. Nxf3 Nfd7 17. exd6 Bxd6 18. Ne4 Be7 19. Neg5 Nd5 20. Ba5 Qb7 21. Nd4 Bxg5 22. fxg5 0-0 23. Nxe6 Rce8 24. Qe4 Rxe6 25. Qxd5 Qxd5 26. Rxd5 Ne5 27. Bc3 Nc4 28. Rd7 Ne3 29. Rc1 h4 30. Kg1 Rfe8 31. Rd2 Nc4 32. Rf2 Nd6 33. Rcf1 Nf5 34. Rd1 R6e7 35. Bb4 Re5 36. Bc3 Rc5 37. Rfd2 Ne7 38. Re2 Kf8 39. Bb4 1-0

[Event "Olympiad-08 Final A"]
[Site "Buenos Aires"]
[Date "1939.09.13"]
[Round "11"]
[White "Raud, Ilmar"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]
[ECO "D13"]
[PlyCount "60"]
[EventDate "1939.09.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Estonia"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "EST"]
[BlackTeamCountry "NED"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. cxd5 cxd5 5. Nc3 e6 6. Bf4 Be7 7. e3 0-0 8. Bd3 Nc6 9. Rc1 Qb6 10. Qe2 Bd7 11. h3 Rfc8 12. 0-0 a6 13. Ne5 Qd8 14. Rfd1 Be8 15. a3 Nd7 16. Nxc6 Rxc6 17. e4 Nb6 18. Re1 Bf8 19. Qf3 Rac8 20. exd5 exd5 21. Rc2 Bd7 22. Rce2 Be6 23. Nd1 Nc4 24. Ne3 Nxe3 25. Qxe3 Qd7 26. Qg3 Bf5 27. Bxf5 Qxf5 28. Re8 Qd7 29. Qe3 f6 30. Rxc8 Rxc8 1/2-1/2

[Event "Olympiad-08 Final A"]
[Site "Buenos Aires"]
[Date "1939.09.12"]
[Round "10"]
[White "Cruz, Walter Oswaldo"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]
[ECO "B24"]
[PlyCount "48"]
[EventDate "1939.09.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Brazil"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nge2 e6 6. d3 Nge7 7. Be3 Nd4 8. Qd2 0-0 9. h4 d5 10. h5 Nxc2+ 11. Qxc2 d4 12. hxg6 fxg6 13. Bh6 Bxh6 14. Rxh6 dxc3 15. 0-0-0 Nc6 16. Kb1 Rxf2 17. Rdh1 Rf7 18. Qxc3 e5 19. Qb3 Qd6 20. Rxh7 Be6 21. Rh8+ Kg7 22. R8h7+ Kg8 23. Rh8+ Kg7 24. R8h7+ Kg8 1/2-1/2

[Event "Olympiad-08 Final A"]
[Site "Buenos Aires"]
[Date "1939.09.09"]
[Round "8"]
[White "Porat, Yosef"]
[Black "De Groot, Adriaan"]
[Result "1-0"]
[ECO "D80"]
[PlyCount "81"]
[EventDate "1939.09.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Palestine"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "PLE"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Qb3 e6 6. Qa3 Nbd7 7. Nf3 Bf8 8. Qb3 c6 9. cxd5 exd5 10. Bd3 Bg7 11. Qa3 Bf8 12. Qa4 Bg7 13. b4 0-0 14. Qb3 a6 15. 0-0 Re8 16. a4 b6 17. Bb2 Bb7 18. a5 b5 19. Rfe1 Ne4 20. Bxe4 dxe4 21. Nd2 Qh4 22. g3 Qg4 23. Ncxe4 Qe6 24. Qxe6 Rxe6 25. Rab1 Re7 26. f3 Rd8 27. Kf2 Nf6 28. Nc5 Bc8 29. Ndb3 h5 30. h4 Nh7 31. e4 Nf6 32. Bc1 Ne8 33. Bg5 f6 34. Bf4 Nc7 35. Rbc1 Kf7 36. Red1 Ne8 37. Nd3 Bb7 38. Ndc5 Bc8 39. d5 cxd5 40. exd5 Nd6 41. Nd4 1-0

[Event "Olympiad-08 Final A"]
[Site "Buenos Aires"]
[Date "1939.09.08"]
[Round "7"]
[White "De Groot, Adriaan"]
[Black "Flores Alvarez, Rodrigo"]
[Result "1/2-1/2"]
[ECO "C15"]
[PlyCount "93"]
[EventDate "1939.09.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Chile"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "CHI"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 dxe4 5. a3 Bxc3+ 6. Nxc3 Nc6 7. Bb5 Nge7 8. Nxe4 Qd5 9. Qd3 f5 10. Ng3 Qxg2 11. Bf4 Nd5 12. Bxc6+ bxc6 13. Be5 f4 14. Qe4 Qh3 15. Ne2 Ba6 16. Nxf4 Qg4 17. h3 Qf5 18. Qxf5 exf5 19. Ne6 Kf7 20. Nxg7 Ne7 21. 0-0-0 Rhg8 22. Rhg1 Bc4 23. Rde1 Rac8 24. b3 Ba6 25. c4 f4 26. Bxf4 Ng6 27. Ne6 Rce8 28. Ng5+ Kg7 29. Bxc7 Bc8 30. f4 h6 31. Rxe8 Rxe8 32. Nf3 Kh7 33. Be5 Bxh3 34. Rh1 Nxe5 35. Nxe5 Bg2 36. Rh2 Be4 37. Nf7 h5 38. Ng5+ Kg6 39. Re2 Kf5 40. Nf7 Kxf4 41. Nd6 Re6 42. Nxe4 Rxe4 43. Rh2 Kg4 44. Rg2+ Kf4 45. Rg6 Ke3 46. Rxc6 Kd3 47. d5 1/2-1/2

[Event "Olympiad-08 Final A"]
[Site "Buenos Aires"]
[Date "1939.09.07"]
[Round "6"]
[White "De Groot, Adriaan"]
[Black "Frydman, Paulino"]
[Result "0-1"]
[ECO "B44"]
[PlyCount "30"]
[EventDate "1939.09.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Poland"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 e6 3. c4 Nc6 4. Nc3 Nf6 5. d4 cxd4 6. Nxd4 Bb4 7. Qd3 0-0 8. Bd2 d5 9. cxd5 exd5 10. Nxc6 bxc6 11. exd5 Re8+ 12. Be3 cxd5 13. 0-0-0 Bxc3 14. bxc3 Qa5 15. Bd4 Rb8 0-1

[Event "Olympiad-08 Final A"]
[Site "Buenos Aires"]
[Date "1939.09.06"]
[Round "5"]
[White "De Groot, Adriaan"]
[Black "Lopez Arce, Alberto"]
[Result "1-0"]
[ECO "C84"]
[PlyCount "151"]
[EventDate "1939.09.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Cuba"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "CUB"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 d6 6. d4 b5 7. Bb3 Bg4 8. c3 Be7 9. Re1 Na5 10. Bc2 c5 11. dxe5 Bxf3 12. Qxf3 dxe5 13. Nd2 Qc7 14. Nf1 0-0 15. Ng3 g6 16. Bh6 Rfd8 17. Nf5 Ne8 18. Ne3 Bf8 19. Bg5 Rd6 20. Rad1 Nc6 21. Rxd6 Qxd6 22. Rd1 Qe6 23. Nd5 Ra7 24. a4 c4 25. Ra1 Rb7 26. axb5 axb5 27. b3 Ra7 28. Rxa7 Nxa7 29. Nf6+ Nxf6 30. Qxf6 Qxf6 31. Bxf6 cxb3 32. Bxb3 Bd6 33. Bd5 Kf8 34. Kf1 Bc7 35. Ke2 Bd6 36. Kd3 b4 37. cxb4 Bxb4 38. Bxe5 Nc8 39. Bc6 Be7 40. Bd4 Nd6 41. Bc5 Ne8 42. Be3 Bf6 43. Kc4 Bb2 44. Bb6 Ng7 45. Bc5+ Kg8 46. Kd5 Ne6 47. Be3 Kf8 48. f4 Ke7 49. g4 Nc7+ 50. Kc4 Ne6 51. f5 gxf5 52. gxf5 Ng7 53. Kd5 f6 54. Bc5+ Kf7 55. Bd6 Bc3 56. Bd7 Nh5 57. Be6+ Kg7 58. Bd7 Kf7 59. Bb5 Bb2 60. Bc4 Bc1 61. Kc6+ Kg7 62. Be2 Nf4 63. Bc4 Nh5 64. Kd7 Bd2 65. Ke8 Kh6 66. h4 Nf4 67. Bf7 Kg7 68. Bf8+ Kh8 69. Bh6 Be3 70. Bb3 Ng2 71. Bxe3 Nxe3 72. Kf7 Ng4 73. Bd1 h5 74. Kg6 Kg8 75. Bb3+ Kh8 76. Bd5 1-0

[Event "Olympiad-08 Final A"]
[Site "Buenos Aires"]
[Date "1939.09.02"]
[Round "2"]
[White "De Groot, Adriaan"]
[Black "Kahn, Victor"]
[Result "1-0"]
[ECO "C90"]
[PlyCount "75"]
[EventDate "1939.09.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "France"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "FRA"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. Bc2 Bg4 10. h3 Bh5 11. d3 d5 12. Nbd2 dxe4 13. dxe4 Nd7 14. Nf1 Nb6 15. Qe2 Bd6 16. Ne3 Bg6 17. Nf5 Bxf5 18. exf5 f6 19. Bb3+ Kh8 20. Be3 Rb8 21. Rad1 Qe8 22. Nd2 Na5 23. Be6 Qc6 24. Qg4 Rbe8 25. Nf3 Nbc4 26. Bc1 Rxe6 27. fxe6 Qe8 28. Nh4 g6 29. Bh6 f5 30. Qg5 Be7 31. Qg3 Rf6 32. b3 f4 33. Qg4 Nb6 34. Rxe5 Bd6 35. Re4 Nc6 36. Bg5 Rf8 37. Bxf4 Bxf4 38. Rxf4 1-0

[Event "Olympiad-08 Final A"]
[Site "Buenos Aires"]
[Date "1939.09.01"]
[Round "1"]
[White "Feigins, Movsas"]
[Black "De Groot, Adriaan"]
[Result "1-0"]
[ECO "D71"]
[PlyCount "41"]
[EventDate "1939.09.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Latvia"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "LAT"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. g3 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. e4 e6 9. Qe2 Qe7 10. Bg2 Bg7 11. Bf4 Rc8 12. Rd1 Nb6 13. Ne5 Bd7 14. Nxd7 Qxd7 15. Bh3 c6 16. a4 Qe7 17. d5 Rd8 18. d6 Qd7 19. a5 Nc8 20. e5 Nd5 21. Bg5 1-0

[Event "Olympiad-08 Preliminaries C"]
[Site "Buenos Aires"]
[Date "1939.08.30"]
[Round "7"]
[White "Bolbochan, Jacobo"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]
[ECO "D92"]
[PlyCount "82"]
[EventDate "1939.08.24"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Argentina"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ARG"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 0-0 6. Qb3 c5 7. cxd5 cxd4 8. Nxd4 e6 9. Be5 exd5 10. e3 Re8 11. Bxb8 Rxb8 12. Bb5 Bd7 13. 0-0 Bxb5 14. Qxb5 Ne4 15. Rad1 Nxc3 16. bxc3 Re7 17. Ne2 Rd7 18. Nf4 a6 19. Qb3 Rc8 20. Nxd5 b5 21. Rd3 Kh8 22. Rfd1 Qh4 23. Nf4 Rxd3 24. Rxd3 Qe7 25. h3 h6 26. Ne2 Rc4 27. Qd1 Rc7 28. Rd6 a5 29. Qd3 Kh7 30. g3 Bxc3 31. Nxc3 Rxc3 32. Qxc3 Qxd6 33. Qxa5 Qd1+ 34. Kg2 Qd5+ 35. Kh2 h5 36. h4 Kg7 37. Qc3+ Kh7 38. Qb3 Qf5 39. Kg1 Kg7 40. Qc3+ Kh7 41. Qb4 Qd5 1/2-1/2

[Event "Olympiad-08 Preliminaries C"]
[Site "Buenos Aires"]
[Date "1939.08.28"]
[Round "5"]
[White "De Groot, Adriaan"]
[Black "O'Donovan, John"]
[Result "1/2-1/2"]
[ECO "C77"]
[PlyCount "72"]
[EventDate "1939.08.24"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Ireland"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "IRL"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. c3 d6 8. d3 Na5 9. Bc2 c5 10. Nbd2 Nc6 11. Nf1 0-0 12. Ng3 Rb8 13. 0-0 a5 14. h3 Bd7 15. Nh2 d5 16. f4 Bd6 17. f5 d4 18. Ng4 Ne8 19. f6 Bxg4 20. Qxg4 Nxf6 21. Qf3 c4 22. Nf5 Ne8 23. Qg4 Kh8 24. Rf3 Rb7 25. Kh1 cxd3 26. Rxd3 g6 27. Ng3 Qe7 28. Bh6 Rg8 29. Rf1 a4 30. a3 Bc5 31. Bb1 Na5 32. Ba2 Nc4 33. b3 axb3 34. Bxb3 Bxa3 35. cxd4 Bb2 36. d5 Bd4 1/2-1/2

[Event "Olympiad-08 Preliminaries C"]
[Site "Buenos Aires"]
[Date "1939.08.26"]
[Round "3"]
[White "Luckis, Marcos"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]
[ECO "E86"]
[PlyCount "66"]
[EventDate "1939.08.24"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Lithuania"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "LTU"]
[BlackTeamCountry "NED"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 0-0 6. Be3 e5 7. Nge2 c6 8. Qd2 exd4 9. Nxd4 d5 10. cxd5 cxd5 11. e5 Ne8 12. f4 f6 13. Nf3 Be6 14. Bc5 Rf7 15. Nd4 Qc8 16. Nxe6 Qxe6 17. Qxd5 Qxd5 18. Nxd5 fxe5 19. Bc4 Kh8 20. 0-0 Nc6 21. fxe5 Rxf1+ 22. Rxf1 Nxe5 23. Bb5 a6 24. Nb6 Rb8 25. Be2 Rd8 26. Be3 Rd6 27. Nc4 Re6 28. Nxe5 Bxe5 29. Bh6 Bd4+ 30. Kh1 Nf6 31. Bc4 Re8 32. Bf7 Re7 33. Bb3 Re8 1/2-1/2

[Event "Olympiad-08 Preliminaries C"]
[Site "Buenos Aires"]
[Date "1939.08.25"]
[Round "2"]
[White "De Groot, Adriaan"]
[Black "Christensen, Alfred August"]
[Result "1-0"]
[ECO "B72"]
[PlyCount "43"]
[EventDate "1939.08.24"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Denmark"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "DEN"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. Qd2 Ng4 9. Bxg4 Bxg4 10. f3 Bd7 11. Nd5 0-0 12. c4 Rc8 13. b3 a6 14. 0-0 f5 15. Rad1 f4 16. Nxc6 fxe3 17. Nxd8 exd2 18. Nxe7+ Kh8 19. Nxb7 Rce8 20. Nd5 Bd4+ 21. Kh1 Re6 22. Rxd2 1-0

[Event "Olympiad-08 Preliminaries C"]
[Site "Buenos Aires"]
[Date "1939.08.24"]
[Round "1"]
[White "Gudmundsson, Jon"]
[Black "De Groot, Adriaan"]
[Result "0-1"]
[ECO "E67"]
[PlyCount "82"]
[EventDate "1939.08.24"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Iceland"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ISL"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nbd7 7. Nc3 e5 8. d5 a5 9. a3 Nb6 10. b3 a4 11. Be3 Nfd7 12. Nd2 axb3 13. Qxb3 Nc5 14. Bxc5 dxc5 15. Nde4 Nd7 16. Qb5 b6 17. Qc6 Ra7 18. Nb5 Nb8 19. Nxa7 Nxc6 20. Nxc6 Qe8 21. a4 f5 22. Nd2 e4 23. Ra3 Bd7 24. Na7 Bxa4 25. Rb1 Qd7 26. Nb5 Bxb5 27. Rxb5 c6 28. Rxb6 cxd5 29. Rba6 Rb8 30. Ra7 Rb7 31. Ra8+ Kf7 32. h4 Bb2 33. Ra2 Bc3 34. cxd5 Qxd5 35. Nf1 Bd4 36. e3 Bb2 37. Nh2 c4 38. Bf1 c3 39. R2a4 Rc7 40. R8a5 Qc6 41. Ra7 Rxa7 0-1

[Event "Match/Nation NED-ENG 10-10"]
[Site "The Hague"]
[Date "1939.05.29"]
[Round "2.7"]
[White "Sergeant, Edward Guthlac"]
[Black "De Groot, Adriaan"]
[Result "0-1"]
[ECO "C90"]
[PlyCount "110"]
[EventDate "1939.05.28"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]
[WhiteTeam "England"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ENG"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 d6 7. c3 Bg4 8. d3 0-0 9. Nbd2 b5 10. Bb3 Na5 11. Bc2 c5 12. h3 Bd7 13. Nf1 Ne8 14. Ne3 Nc7 15. d4 f6 16. Nd5 Nxd5 17. exd5 cxd4 18. cxd4 Rc8 19. Bd2 Nc4 20. b3 Nxd2 21. Qxd2 Qc7 22. Rac1 Qb7 23. dxe5 fxe5 24. Be4 Rxc1 25. Rxc1 Bd8 26. Qd3 h6 27. b4 Bb6 28. Rc2 Bd8 29. Nh2 Bh4 30. Nf3 Bd8 31. Nh2 Bh4 32. Nf3 Bd8 33. Nd2 Qb6 34. Nf1 Bh4 35. g3 Bd8 36. Kg2 Kh8 37. Ne3 Qd4 38. Qxd4 exd4 39. Nd1 Bb6 40. Nb2 g5 41. Nd3 Kg7 42. f3 Ra8 43. f4 Re8 44. Nf2 gxf4 45. gxf4 Ra8 46. Nd3 Kf6 47. Kf3 Re8 48. Nf2 h5 49. Re2 Rc8 50. Rc2 Rc4 51. a3 Bf5 52. Bxf5 Kxf5 53. Rd2 d3 54. Nxd3 Rd4 55. Ke2 Ke4 0-1

[Event "Match/Nation NED-ENG 10-10"]
[Site "The Hague"]
[Date "1939.05.28"]
[Round "1.7"]
[White "De Groot, Adriaan"]
[Black "Sergeant, Edward Guthlac"]
[Result "1/2-1/2"]
[ECO "C72"]
[PlyCount "64"]
[EventDate "1939.05.28"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "England"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ENG"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. d4 Bd7 6. 0-0 Nf6 7. Re1 Be7 8. c4 exd4 9. Nxd4 Nxd4 10. Bxd7+ Nxd7 11. Qxd4 0-0 12. Nc3 Bf6 13. Qd2 Re8 14. b3 Bxc3 15. Qxc3 Qf6 16. Bb2 Qxc3 17. Bxc3 Re6 18. a4 Nc5 19. f3 Nxb3 20. Rab1 Nc5 21. Bd4 b6 22. a5 bxa5 23. Bxc5 dxc5 24. Rb7 Rc6 25. Ra1 Rd8 26. Rxa5 Kf8 27. Rb2 Rd4 28. Rc2 Ke7 29. Kf2 Kd6 30. Ke2 Rb6 31. Ra4 Ke5 32. Ra5 Kd6 1/2-1/2

[Event "NED Team-ch 1938/39"]
[Site "Netherlands"]
[Date "1939.03.12"]
[Round "4.3"]
[White "De Groot, Adriaan"]
[Black "Van Foreest, Dirk"]
[Result "0-1"]
[ECO "C83"]
[PlyCount "92"]
[EventDate "1938.12.04"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam VAS"]
[BlackTeam "Bussum"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 0-0 11. Qe2 Nxd2 12. Qxd2 Na5 13. Bc2 c5 14. Qd3 g6 15. Bh6 Re8 16. Qd2 Nc6 17. Rad1 Rc8 18. Qf4 Qc7 19. Rfe1 f5 20. h4 Bf8 21. Bxf8 Rxf8 22. b4 c4 23. h5 Rcd8 24. hxg6 hxg6 25. Re3 Qg7 26. Qg5 f4 27. Re2 Bf5 28. Bxf5 Rxf5 29. Qh4 Qh7 30. Qxh7+ Kxh7 31. Nd4 Nxd4 32. Rxd4 Kg7 33. g4 fxg3 34. f4 Kf7 35. Re3 g5 36. fxg5 Rxg5 37. Rf4+ Ke7 38. e6 Rg7 39. Re5 g2 40. a3 Rd6 41. Rf7+ Rxf7 42. exf7+ Kxf7 43. Kxg2 d4 44. cxd4 Rxd4 45. Rc5 Rd2+ 46. Kf3 Rd3+ 0-1

[Event "NED-ch10"]
[Site "Amsterdam"]
[Date "1938.07.06"]
[Round "5"]
[White "De Groot, Adriaan"]
[Black "Van den Bosch, Johannes"]
[Result "1/2-1/2"]
[ECO "B39"]
[PlyCount "137"]
[EventDate "1938.07.02"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 g6 2. e4 c5 3. d4 cxd4 4. Nxd4 Bg7 5. c4 Nc6 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 Ne6 10. Qd2 0-0 11. Bd3 b6 12. 0-0 Bb7 13. Rad1 d6 14. f3 Rc8 15. b3 Qe8 16. Bb1 Nc7 17. a4 f5 18. Nd5 Qf7 19. a5 Bxd5 20. exd5 Rb8 21. Bc2 f4 22. Bd4 Bxd4+ 23. Qxd4 Qf6 24. Qxf6 exf6 25. axb6 axb6 26. Ra1 Ra8 27. b4 Rxa1 28. Rxa1 Ra8 29. Rxa8+ Nxa8 30. Kf2 Nc7 31. Ke2 Na6 32. Ba4 Nxb4 33. Kd2 Na6 34. Kc3 Kf7 35. Kd4 h5 36. Bc2 Nc5 37. Kc3 Na6 38. Kd4 f5 39. Kc3 Kf6 40. Kd4 g5 41. Bd1 Nc5 42. Bc2 g4 43. Bd1 Nd7 44. Be2 Ne5 45. Kc3 h4 46. h3 gxh3 47. gxh3 Nf7 48. Kb4 Ng5 49. Kb5 Nxh3 50. Kxb6 Ng5 51. c5 dxc5 52. Kxc5 h3 53. Bf1 h2 54. Bg2 Nf7 55. Kc6 Ke5 56. Kc5 Nd8 57. Bh1 Nf7 58. Bg2 Kf6 59. Bh1 Ke7 60. Kc6 Ne5+ 61. Kc7 Kf6 62. Kd6 Nf7+ 63. Kc5 Ke5 64. Bg2 Nd8 65. Bh1 Nb7+ 66. Kc6 Kd4 67. Kxb7 Kxd5 68. Kb6 Kc4 69. Ka5 1/2-1/2

[Event "NED-ch10"]
[Site "Amsterdam"]
[Date "1938.07.04"]
[Round "3"]
[White "De Groot, Adriaan"]
[Black "Euwe, Max"]
[Result "0-1"]
[ECO "E02"]
[PlyCount "60"]
[EventDate "1938.07.02"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Nc3 Be7 8. 0-0 b5 9. Nxb5 Nb6 10. Nxc7+ Kf8 11. Qa5 Qxc7 12. Bf4 Bd6 13. Bxd6+ Qxd6 14. Ne5 Nfd5 15. Rac1 Rb8 16. Nxc4 Nxc4 17. Rxc4 Bd7 18. Rfc1 f5 19. Rc5 Ne7 20. Qc3 Kf7 21. e4 Rhc8 22. b4 fxe4 23. Bxe4 Kg8 24. a3 Nd5 25. Qd3 Nf6 26. Bg2 Rd8 27. Bh3 Bb5 28. Qe3 Qxd4 29. Qxe6+ Kh8 30. Rf5 Bd7 0-1

[Event "Match/Nation ENG-NED (5-5) (5,5-4,5)"]
[Site "London"]
[Date "1938.06.06"]
[Round "2.4"]
[White "De Groot, Adriaan"]
[Black "Thomas, George Alan"]
[Result "1/2-1/2"]
[ECO "E16"]
[PlyCount "35"]
[EventDate "1938.06.05"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "ENG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "England"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ENG"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 Bb7 7. Bg2 d6 8. Nc3 Nbd7 9. Qc2 0-0 10. 0-0 Qe7 11. Rfd1 Rfd8 12. Rd2 c6 13. Rad1 d5 14. cxd5 cxd5 15. Qd3 Rdc8 16. Rc2 Ne4 17. Rdc1 Nxc3 18. Rxc3 1/2-1/2

[Event "Match/Nation ENG-NED (5-5) (5,5-4,5)"]
[Site "London"]
[Date "1938.06.05"]
[Round "1.4"]
[White "Thomas, George Alan"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]
[ECO "B29"]
[PlyCount "36"]
[EventDate "1938.06.05"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "ENG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]
[WhiteTeam "England"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ENG"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 Nf6 3. Nc3 d5 4. exd5 Nxd5 5. Bb5+ Bd7 6. Ne5 Nf6 7. Qf3 Qc7 8. Nxd7 Nbxd7 9. 0-0 a6 10. Bxd7+ Qxd7 11. d3 e6 12. Bf4 Be7 13. b3 0-0 14. Rfe1 Nd5 15. Nxd5 exd5 16. Be5 Rfe8 17. Re2 Bf8 18. Rae1 Re6 1/2-1/2

[Event "NED Team-ch 1937/38"]
[Site "Netherlands"]
[Date "1938.03.06"]
[Round "5.2"]
[White "Van Foreest, Arnold E"]
[Black "De Groot, Adriaan"]
[Result "0-1"]
[ECO "C25"]
[PlyCount "78"]
[EventDate "1937.11.07"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Amsterdam VAS"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nc3 f5 3. Bc4 Nf6 4. d4 exd4 5. Qxd4 Nc6 6. Qe3 Bb4 7. exf5+ Ne7 8. a3 Bxc3+ 9. Qxc3 d5 10. Bg5 dxc4 11. Bxf6 gxf6 12. Rd1 Nd5 13. Qxc4 c6 14. g4 0-0 15. Ne2 Kh8 16. Rg1 Bd7 17. Rg3 Qe7 18. Kf1 Rae8 19. Qd3 c5 20. c4 Nb6 21. Re3 Qg7 22. Rg3 Re5 23. b3 Rfe8 24. Nf4 Re4 25. Nh5 Qe7 26. Qc3 Rf8 27. g5 Qe5 28. Nxf6 Qxc3 29. Rxc3 Bxf5 30. Nxe4 Bxe4 31. Re3 Bc6 32. Re7 Nc8 33. Re5 b6 34. Rd3 Kg7 35. Ke2 Rf7 36. Rde3 Nd6 37. Re6 Nf5 38. Rxc6 Nd4+ 39. Kd2 Nxc6 0-1

[Event "NED Team-ch 1937/38"]
[Site "Netherlands"]
[Date "1938.02.13"]
[Round "4.4"]
[White "Haalebos, Francois C"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]
[ECO "B00"]
[PlyCount "60"]
[EventDate "1937.11.07"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Rotterdam NRSV"]
[BlackTeam "Amsterdam VAS"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. Nf3 Nc6 2. d4 d6 3. e4 Bg4 4. Be3 Nf6 5. Nbd2 e5 6. d5 Nb8 7. Be2 Be7 8. c3 c6 9. Qb3 Qc7 10. 0-0 0-0 11. c4 Na6 12. Rac1 Bh5 13. h3 Nc5 14. Bxc5 dxc5 15. Qc3 Bg6 16. Bd3 b5 17. Rfe1 bxc4 18. Qxc4 Rab8 19. dxc6 Rxb2 20. Qc3 Rxa2 21. Nxe5 Nh5 22. Nxg6 hxg6 23. Bc4 Ra4 24. Rb1 Rb4 25. e5 Rxb1 26. Rxb1 Qxc6 27. Qf3 Qxf3 28. Nxf3 Rd8 29. Rb7 Kf8 30. Rxa7 Nf4 1/2-1/2

[Event "Den Haag Keusbeker-06"]
[Site "The Hague"]
[Date "1937.12.27"]
[Round "3"]
[White "Wertheim, Willem F"]
[Black "De Groot, Adriaan"]
[Result "1-0"]
[ECO "A11"]
[PlyCount "65"]
[EventDate "1937.12.25"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. Nc3 g6 5. b3 Bg7 6. Bb2 0-0 7. Be2 Nbd7 8. cxd5 cxd5 9. 0-0 b6 10. Qb1 Bb7 11. d3 Nc5 12. Rd1 Qe8 13. Qc2 Rc8 14. a4 Na6 15. Nd4 e5 16. Ndb5 d4 17. Nd6 Qd7 18. Nxc8 Rxc8 19. Qd2 dxc3 20. Bxc3 Nc5 21. Qb2 Nd5 22. Be1 Qe6 23. Rac1 Ne7 24. Bb4 Nf5 25. Bxc5 bxc5 26. b4 e4 27. Qd2 exd3 28. Bxd3 Nh4 29. Rc4 Nxg2 30. Bf1 Bf6 31. Bxg2 Bxg2 32. Qd7 Bd5 33. Rxd5 1-0

[Event "Den Haag Keusbeker-06"]
[Site "The Hague"]
[Date "1937.12.26"]
[Round "2"]
[White "De Groot, Adriaan"]
[Black "Nieukerke, Karel J"]
[Result "0-1"]
[ECO "D60"]
[PlyCount "94"]
[EventDate "1937.12.25"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. Bg5 Be7 6. e3 0-0 7. cxd5 Nxd5 8. Bxe7 Qxe7 9. Qb3 Nxc3 10. Qxc3 c5 11. Be2 b6 12. 0-0 Bb7 13. Qa3 e5 14. dxc5 Nxc5 15. Rac1 Rfc8 16. b4 Ne4 17. Rxc8+ Bxc8 18. Qb2 f6 19. Bc4+ Be6 20. Qb3 Kf7 21. Qd3 Nd6 22. Bxe6+ Qxe6 23. Qxh7 Qxa2 24. h4 Qe6 25. Rd1 Qf5 26. Qxf5 Nxf5 27. g4 e4 28. gxf5 exf3 29. Kh2 a5 30. bxa5 bxa5 31. Kg3 a4 32. Kxf3 a3 33. Ke2 a2 34. Ra1 Ke7 35. e4 Kd6 36. Ke3 Kc5 37. h5 Kc4 38. e5 fxe5 39. Ke4 Kb3 40. h6 gxh6 41. Kxe5 Kb2 42. Rg1 a1Q 43. Rxa1 Kxa1 44. Kf6 Ra6+ 45. Kg7 h5 46. f6 h4 47. f7 Ra7 0-1

[Event "Den Haag Keusbeker-06"]
[Site "The Hague"]
[Date "1937.12.25"]
[Round "1"]
[White "Van Scheltinga, Theo D"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]
[ECO "D95"]
[PlyCount "73"]
[EventDate "1937.12.25"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qb3 g6 5. Nc3 Bg7 6. e3 0-0 7. Bd2 e6 8. Bd3 Nbd7 9. 0-0 Nb6 10. cxd5 exd5 11. a4 a5 12. Rfc1 Nbd7 13. Qc2 Re8 14. b4 axb4 15. Na2 c5 16. dxc5 Ne4 17. Bxe4 dxe4 18. Nd4 Qh4 19. Be1 b3 20. Qxb3 Qh5 21. Qb5 Re5 22. Bb4 Rg5 23. Nc3 Qg4 24. g3 Rh5 25. Qe2 Qh3 26. f4 exf3 27. Nxf3 Nxc5 28. Bxc5 Rxc5 29. Ne4 Rxc1+ 30. Rxc1 Rxa4 31. Nd6 Ra8 32. Nxf7 Be6 33. N7g5 Qf5 34. Nxe6 Qxe6 35. Ng5 Qb3 36. Qc4+ Qxc4 37. Rxc4 1/2-1/2

[Event "NED Team-ch 1937/38"]
[Site "Netherlands"]
[Date "1937.12.19"]
[Round "2.3"]
[White "De Groot, Adriaan"]
[Black "Van Foreest, Dirk"]
[Result "1-0"]
[ECO "C56"]
[PlyCount "51"]
[EventDate "1937.11.07"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam VAS"]
[BlackTeam "Bussum"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bxd5 Qxd5 8. Nc3 Qa5 9. Nxe4 Be6 10. Bg5 h6 11. Bd2 Qd5 12. c4 Qxc4 13. Rc1 Qd5 14. Bf4 0-0-0 15. Qa4 Bd6 16. Nxd6+ cxd6 17. Qxa7 Qxa2 18. Qb6 Bc4 19. Nd2 Rhe8 20. Rxe8 Rxe8 21. Bxd6 Qa5 22. Qxa5 Nxa5 23. Nxc4 Nxc4 24. Rxc4+ Kd7 25. Bb4 Re4 26. Bc3 1-0

[Event "NED Team-ch 1937/38"]
[Site "Netherlands"]
[Date "1937.11.07"]
[Round "1.4"]
[White "De Groot, Adriaan"]
[Black "Hamming, Adolf Willem"]
[Result "1-0"]
[ECO "D36"]
[PlyCount "55"]
[EventDate "1937.11.07"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam VAS"]
[BlackTeam "Den Haag DD"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 Be7 6. cxd5 exd5 7. Nf3 0-0 8. Qc2 Re8 9. Bd3 c6 10. 0-0-0 Nf8 11. h3 g6 12. g4 Ne6 13. Bxf6 Bxf6 14. h4 c5 15. h5 cxd4 16. exd4 Nf4 17. Rdg1 Bd7 18. hxg6 hxg6 19. Qd2 Nxd3+ 20. Qxd3 Rc8 21. Kb1 Bg7 22. Ne5 Re6 23. f4 Be8 24. f5 Rb6 25. fxg6 fxg6 26. Qh3 Qg5 27. Qh7+ Kf8 28. Nxd5 1-0

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.13"]
[Round "18"]
[White "De Groot, Adriaan"]
[Black "Petersen, Johannes1111"]
[Result "0-1"]
[ECO "E14"]
[PlyCount "72"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Denmark"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "DEN"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. e3 0-0 6. Bd3 b6 7. 0-0 Bb7 8. b3 Nbd7 9. Bb2 Re8 10. Qe2 Bf8 11. Ne5 Nxe5 12. dxe5 dxc4 13. bxc4 Nd7 14. Rad1 g6 15. Ne4 Qh4 16. f4 Red8 17. Rf3 Bxe4 18. Bxe4 Rab8 19. Rh3 Qe7 20. Rf1 Qb4 21. f5 exf5 22. Bxf5 Bg7 23. Be4 Rf8 24. Bd5 Bxe5 25. Qg4 Qe7 26. Bxe5 Nxe5 27. Qf4 Kh8 28. g4 f5 29. gxf5 Rxf5 30. Qd4 Rxf1+ 31. Kxf1 Rf8+ 32. Ke2 Qf6 33. Kd2 c6 34. Kc3 cxd5 35. cxd5 Rc8+ 36. Kb3 Rc4 0-1

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.12"]
[Round "16"]
[White "De Groot, Adriaan"]
[Black "Zita, Frantisek"]
[Result "1/2-1/2"]
[ECO "E18"]
[PlyCount "103"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Czechoslovakia"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "CSR"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 d5 8. Ne5 Nbd7 9. Qa4 c6 10. e4 Nxe5 11. dxe5 Nxe4 12. Nxe4 dxe4 13. Bxe4 Qc7 14. Qc2 Qxe5 15. Bxh7+ Kh8 16. Be4 Bf6 17. Rb1 Rfd8 18. Bf4 Qh5 19. Rbd1 Bd4 20. Rd3 e5 21. Qd1 Qxd1 22. Rfxd1 Rdb8 23. b3 c5 24. Bxb7 Rxb7 25. Be3 Re8 26. g4 Re6 27. f3 Rbe7 28. h3 Kh7 29. Kg2 Kg6 30. h4 e4 31. fxe4 Rxe4 32. Bxd4 Rxg4+ 33. Kf3 Rxd4 34. Rxd4 cxd4 35. Rxd4 Kh5 36. b4 Rc7 37. c5 bxc5 38. Rc4 Kg6 39. Kf4 Kf6 40. bxc5 Ke6 41. Ke4 g6 42. Rc2 Rd7 43. c6 Rc7 44. Kf4 f6 45. Rc3 Kd6 46. Rg3 Rxc6 47. Rxg6 Ke6 48. Rg2 Rc4+ 49. Kg3 Kf5 50. Rf2+ Kg6 51. Rf4 Rc3+ 52. Rf3 1/2-1/2

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.12"]
[Round "17"]
[White "Regedzinski, Teodor"]
[Black "De Groot, Adriaan"]
[Result "1-0"]
[ECO "E62"]
[PlyCount "36"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Poland"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nc6 7. Nc3 e5 8. b3 Nh5 9. dxe5 dxe5 10. Ba3 Re8 11. Qxd8 Rxd8 12. Rad1 Bd7 13. Nd5 Rdc8 14. Ng5 Bf8 15. Bxf8 Kxf8 16. Nxh7+ Kg7 17. Ng5 Nd4 18. Nc3 Rab8 1-0

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.10"]
[Round "14"]
[White "De Groot, Adriaan"]
[Black "Ojanen, Kaarle Sakari"]
[Result "1/2-1/2"]
[ECO "E19"]
[PlyCount "62"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Finland"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "FIN"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 Qc7 11. dxc5 bxc5 12. Bf4 d6 13. Qd3 e5 14. Ng5 g6 15. Be3 Bxg2 16. Kxg2 Nc6 17. Ne4 Nb4 18. Qd2 f5 19. Nc3 Rf7 20. a3 Qb7+ 21. Kg1 Nc6 22. Qd5 Rb8 23. b4 cxb4 24. axb4 Nxb4 25. Qxb7 Rxb7 26. Rdb1 Bf8 27. Ra4 Nc6 28. Rxb7 Rxb7 29. Ra6 Nb4 30. Rxa7 Rxa7 31. Bxa7 Kf7 1/2-1/2

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.10"]
[Round "15"]
[White "Defosse, Marcel"]
[Black "De Groot, Adriaan"]
[Result "0-1"]
[ECO "D85"]
[PlyCount "86"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Belgium"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "NED"]

1. c4 Nf6 2. Nc3 g6 3. d4 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Ba3 Nd7 8. Qb3 c5 9. Nf3 0-0 10. Rd1 Qa5 11. Bc4 b5 12. Bd5 Rb8 13. 0-0 Qb6 14. e5 e6 15. Be4 a5 16. h4 Ba6 17. Rfe1 Qc7 18. Qc2 Rfc8 19. h5 b4 20. hxg6 hxg6 21. cxb4 cxb4 22. Qxc7 Rxc7 23. Bb2 Nb6 24. d5 exd5 25. Bxd5 Rc2 26. Bxf7+ Kxf7 27. e6+ Kg8 28. e7 Re8 29. Bxg7 Kxg7 30. Rd6 Rxa2 31. Rxb6 Be2 32. Ne5 Rxe7 33. Nxg6 Rd7 34. g4 Rd1 35. Rxd1 Bxd1 36. Ne5 b3 37. g5 Bc2 38. Rb7+ Kf8 39. g6 b2 40. Nd7+ Kg7 41. Ne5+ Kf6 42. g7 Bh7 43. Kg2 Kxe5 0-1

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.09"]
[Round "13"]
[White "Horowitz, Israel Albert"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]
[ECO "B05"]
[PlyCount "102"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "United States"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "USA"]
[BlackTeamCountry "NED"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. Nf3 Bg4 6. exd6 exd6 7. Be2 Be7 8. 0-0 0-0 9. Nbd2 Nc6 10. d5 Nb8 11. Qc2 Re8 12. Ne4 N8d7 13. Ng3 a5 14. h3 Bxf3 15. Bxf3 Bg5 16. Be4 Bxc1 17. Raxc1 Qh4 18. Rce1 Nc5 19. b3 Nbd7 20. Re2 Nxe4 21. Nxe4 Nf6 22. Nxf6+ Qxf6 23. Rfe1 Rxe2 24. Qxe2 g6 25. Qg4 Rd8 26. a4 b6 27. h4 h5 28. Qe4 Kg7 29. g3 Kg8 30. Kg2 Kg7 31. Re3 Rd7 32. Qe8 Qd8 33. Kf3 Qxe8 34. Rxe8 f6 35. Kf4 Kf7 36. Rc8 Re7 37. g4 hxg4 38. Kxg4 Kg7 39. h5 gxh5+ 40. Kxh5 Re5+ 41. Kg4 Re7 42. Kf4 Kf7 43. f3 Kg7 44. Kg4 Kg6 45. Kf4 Kg7 46. Ra8 Kf7 47. Ra7 Kg6 48. Ra8 Kf7 49. Ra7 Kg7 50. Kf5 Re5+ 51. Kg4 Re7 1/2-1/2

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.07"]
[Round "12"]
[White "De Groot, Adriaan"]
[Black "Pleci, Isaias"]
[Result "1/2-1/2"]
[ECO "D66"]
[PlyCount "41"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Argentina"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ARG"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Nbd7 5. e3 Be7 6. Nc3 0-0 7. Rc1 c6 8. Bd3 Re8 9. 0-0 dxc4 10. Bxc4 Nd5 11. Bxe7 Qxe7 12. Ne4 N5f6 13. Ng3 c5 14. Ne5 cxd4 15. Qxd4 Nxe5 16. Qxe5 Bd7 17. Rfd1 Rac8 18. Bb3 Rxc1 19. Rxc1 Bc6 20. Qd4 a6 21. Rd1 1/2-1/2

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.06"]
[Round "10"]
[White "De Groot, Adriaan"]
[Black "Broder, Mirko"]
[Result "1/2-1/2"]
[ECO "D68"]
[PlyCount "38"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Yugoslavia"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "YUG"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Be7 5. e3 0-0 6. Nc3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. 0-0 Nxc3 12. Rxc3 e5 13. Qb1 exd4 14. exd4 Nb6 15. Bb3 Qf6 16. Re1 Bf5 17. Qc1 Rad8 18. Qf4 Nd5 19. Bxd5 Rxd5 1/2-1/2

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.05"]
[Round "9"]
[White "Christoffersen, Hans Christian"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]
[ECO "B03"]
[PlyCount "90"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Norway"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "NOR"]
[BlackTeamCountry "NED"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. exd6 exd6 5. Nf3 Be7 6. Bd3 Bg4 7. Be4 c6 8. Bxd5 cxd5 9. Nc3 Qa5 10. 0-0 0-0 11. a3 Nc6 12. Be3 Be6 13. b4 Qc7 14. Ne2 Rac8 15. c4 Nb8 16. c5 b6 17. Bf4 Qd8 18. cxb6 Qxb6 19. Qd3 Rc4 20. Bg5 Qd8 21. Bxe7 Qxe7 22. Nd2 Rcc8 23. Rfe1 Nd7 24. Ng3 Nb6 25. Nf3 Nc4 26. h4 h6 27. Re2 Qf6 28. Rae1 Rc7 29. a4 a6 30. Rb1 Rb8 31. Ra2 Rcb7 32. Qc3 h5 33. Ng5 Qf4 34. Qd3 Kf8 35. Nxe6+ fxe6 36. Re1 Rxb4 37. Qh7 Qxh4 38. Nxh5 Qxd4 39. Rae2 Rb2 40. Re3 Nxe3 41. fxe3 Qg4 42. Nf4 Ke7 43. Ng6+ Kf6 44. Rf1+ Kg5 45. Nf4 Kf6 1/2-1/2

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.05"]
[Round "8"]
[White "De Groot, Adriaan"]
[Black "Danielsson, Gosta"]
[Result "0-1"]
[ECO "E16"]
[PlyCount "94"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Sweden"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "SWE"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 Qe7 8. Nc3 d6 9. Qc2 Nc6 10. 0-0 0-0 11. e4 e5 12. d5 Nb4 13. Qb3 a5 14. a3 Na6 15. Qc2 Bc8 16. Rab1 Nh5 17. b4 f5 18. exf5 Bxf5 19. Ne4 Nf6 20. Nfd2 Nb8 21. c5 bxc5 22. bxc5 Na6 23. cxd6 cxd6 24. Qc6 Bxe4 25. Nxe4 Nxe4 26. Bxe4 Nc5 27. Bg2 Rac8 28. Qb5 a4 29. Qe2 Qa7 30. Be4 Rc7 31. Rb4 Rcf7 32. Kg2 Rf6 33. Bc2 Qf7 34. Bxa4 Rf3 35. Bb5 Rxa3 36. Bc4 Rf3 37. Rb6 Qf6 38. Rb2 e4 39. Rd2 h5 40. Qe1 h4 41. Be2 Qf5 42. h3 hxg3 43. fxg3 Rxf1 44. Qxf1 Qg5 45. Qe1 e3 46. Rc2 Rf2+ 47. Kh1 Qxd5+ 0-1

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.04"]
[Round "7"]
[White "Abramavicius, Leonhard"]
[Black "De Groot, Adriaan"]
[Result "0-1"]
[ECO "E86"]
[PlyCount "138"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Lithuania"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "LTU"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. Nge2 c6 8. Qd2 Nbd7 9. g4 Nb6 10. Ng3 exd4 11. Bxd4 d5 12. cxd5 cxd5 13. g5 Ne8 14. Bxg7 Nxg7 15. exd5 Re8+ 16. Kf2 Bf5 17. Bb5 Re7 18. Rhe1 a6 19. Rxe7 Qxe7 20. Bf1 Rd8 21. Rd1 Qc5+ 22. Qe3 Qb4 23. Rd2 Qd6 24. Kg1 Kf8 25. Nge4 Bxe4 26. Nxe4 Qc7 27. Nf6 Nf5 28. Qa3+ Kg7 29. Re2 Qf4 30. Ne8+ Kg8 31. Nf6+ Kg7 32. Ne8+ Kg8 33. Nf6+ Kh8 34. Re8+ Rxe8 35. Nxe8 Qxg5+ 36. Kh1 Kg8 37. Qc5 Qe3 38. Qxe3 Nxe3 39. Kg1 Nxf1 40. Kxf1 Nxd5 41. Ke2 Kf8 42. Nd6 b6 43. Nc4 Ke7 44. a3 h5 45. Kd3 Ke6 46. Kd4 g5 47. Nd2 f6 48. b4 Kd6 49. Ke4 Ne7 50. Nb3 Ke6 51. Nd4+ Kd6 52. b5 a5 53. a4 Kd7 54. Ne2 Ke6 55. Nd4+ Kd6 56. h3 Kd7 57. Ne2 Ke6 58. Nd4+ Kd6 59. f4 g4 60. hxg4 hxg4 61. f5 g3 62. Ne2 g2 63. Kf3 Nxf5 64. Kxg2 Kc5 65. Kf3 Nd4+ 66. Nxd4 Kxd4 67. Kf4 Kc4 68. Ke4 Kb4 69. Kd5 f5 0-1

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.03"]
[Round "6"]
[White "De Groot, Adriaan"]
[Black "Pirie, Charles"]
[Result "1-0"]
[ECO "E18"]
[PlyCount "101"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Scotland"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "SCO"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 c5 8. d5 d6 9. e4 e5 10. b3 Nbd7 11. Ne1 Ne8 12. Nd3 Bf6 13. Bb2 g6 14. Qd2 Bg7 15. Ne2 Qe7 16. Rae1 f6 17. f4 Nc7 18. Nc3 a6 19. a4 a5 20. Bc1 Rae8 21. f5 Kf7 22. fxg6+ hxg6 23. g4 Rh8 24. Qf2 Reg8 25. Bg5 Ke8 26. Bh4 g5 27. Bg3 Nf8 28. Nd1 Bc8 29. Ne3 Ng6 30. Nf5 Bxf5 31. exf5 Nh4 32. Re3 Nxg2 33. Kxg2 Kd7 34. Kf3 Qf7 35. Ke4 Re8 36. Qg2 Qg8 37. h3 Bh6 38. Rh1 Qf7 39. Ree1 Qg7 40. Rh2 Rh7 41. Reh1 Reh8 42. Nf2 Ne8 43. Kd3 Kd8 44. Ne4 Qf7 45. h4 gxh4 46. Rxh4 Kd7 47. Qh3 Qg7 48. Bf2 Nc7 49. g5 Qf7 50. g6 Qg8 51. Nxf6+ 1-0

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.03"]
[Round "5"]
[White "Petursson, Sturla"]
[Black "De Groot, Adriaan"]
[Result "0-1"]
[ECO "E70"]
[PlyCount "80"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Iceland"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ISL"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Bd3 e5 7. d5 Nbd7 8. Nge2 Nh5 9. Be3 f5 10. exf5 gxf5 11. Qc2 Nc5 12. Bxc5 dxc5 13. 0-0-0 Qg5+ 14. Kb1 Qxg2 15. Rhg1 Qxf3 16. Ng3 Nxg3 17. Rxg3 Qh5 18. Rdg1 Rf7 19. Qg2 Qh6 20. Rh3 Qf6 21. Qe2 e4 22. Qh5 exd3 23. Qxh7+ Kf8 24. Rhg3 Qh6 25. Qxh6 Bxh6 26. Rg8+ Ke7 27. Re1+ Kf6 28. d6 Rf8 29. Nd5+ Kf7 30. Rgg1 Be6 31. Nxc7 Rae8 32. b3 Bf4 33. Nxe8 Rxe8 34. h4 Bxd6 35. h5 Rh8 36. Rh1 f4 37. h6 Bf5 38. Reg1 d2+ 39. Kb2 Be5+ 40. Ka3 Bc2 0-1

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.02"]
[Round "4"]
[White "De Groot, Adriaan"]
[Black "Rosselli del Turco, Stefano"]
[Result "1-0"]
[ECO "D36"]
[PlyCount "81"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Italy"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ITA"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. cxd5 exd5 7. Bd3 Be7 8. Qc2 0-0 9. g4 Re8 10. Bxf6 Nxf6 11. g5 Ne4 12. Nxe4 dxe4 13. Bxe4 Bb4+ 14. Kf1 Qxg5 15. Bxh7+ Kh8 16. Be4 f5 17. Bg2 f4 18. e4 b6 19. Nf3 Ba6+ 20. Kg1 Qh5 21. h4 Rad8 22. a3 Bf8 23. Re1 c5 24. d5 Bc8 25. Qc3 Bg4 26. Ng5 c4 27. Bf3 Rd6 28. Bxg4 Qxg4+ 29. Kf1 Rf6 30. Qf3 Qxf3 31. Nxf3 Bc5 32. Rg1 b5 33. e5 Ra6 34. d6 c3 35. bxc3 Rxa3 36. d7 Rd8 37. e6 Ra2 38. Re2 Ra1+ 39. Kg2 Rxg1+ 40. Kxg1 Be7 41. Ne5 1-0

[Event "Olympiad-07"]
[Site "Stockholm"]
[Date "1937.08.01"]
[Round "3"]
[White "Wheatcroft, George Shorrock"]
[Black "De Groot, Adriaan"]
[Result "0-1"]
[ECO "B05"]
[PlyCount "88"]
[EventDate "1937.07.31"]
[EventType "team-tourn"]
[EventRounds "19"]
[EventCountry "SWE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "England"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ENG"]
[BlackTeamCountry "NED"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. c4 Nb6 7. exd6 cxd6 8. b3 Be7 9. 0-0 0-0 10. Bb2 Nc6 11. Re1 d5 12. c5 Nd7 13. Nbd2 b6 14. cxb6 Qxb6 15. Ne5 Ndxe5 16. dxe5 Bf5 17. Nf3 Bc5 18. Rf1 a5 19. Rc1 Rfc8 20. Bd3 Bg4 21. Bxh7+ Kh8 22. Bb1 Ne7 23. h3 Bh5 24. g4 Bg6 25. Bxg6 Nxg6 26. Qd2 a4 27. Rc2 axb3 28. axb3 Qxb3 29. Ng5 Bb4 30. Rfc1 Rxc2 31. Qxc2 Qxc2 32. Rxc2 Kg8 33. Rc7 Be7 34. Nf3 Kf8 35. Nd4 Nf4 36. Nc6 Bh4 37. Ba3+ Ke8 38. Be7 Bxe7 39. Rxe7+ Kf8 40. Rd7 Nxh3+ 41. Kg2 Nf4+ 42. Kf3 g5 43. Kg3 Ra3+ 44. f3 Ra2 0-1

[Event "Match/Nation NED-ENG (4,5-5,5) (6-4)"]
[Site "Amsterdam"]
[Date "1937.05.17"]
[Round "2.9"]
[White "De Groot, Adriaan"]
[Black "Morry, William Ritson"]
[Result "1-0"]
[ECO "D63"]
[PlyCount "85"]
[EventDate "1937.05.16"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "England"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ENG"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 0-0 6. Nf3 h6 7. Bh4 Nbd7 8. Rc1 b6 9. cxd5 exd5 10. Qa4 c5 11. Ba6 Bxa6 12. Qxa6 c4 13. 0-0 Re8 14. Ne5 Nf8 15. b3 cxb3 16. axb3 Qc8 17. Qxc8 Raxc8 18. Bxf6 gxf6 19. Nd3 Ba3 20. Nxd5 Bxc1 21. Nxf6+ Kh8 22. Nxe8 Ba3 23. Nf6 Rc3 24. Rd1 Rxb3 25. e4 a5 26. d5 a4 27. Kf1 Be7 28. Ng4 a3 29. Ke2 b5 30. Nxh6 Rc3 31. d6 Rc2+ 32. Kf3 Bf6 33. e5 Bg7 34. Nxf7+ Kg8 35. Ng5 Rc3 36. Ke4 b4 37. Nxb4 Rb3 38. Nd5 Nd7 39. f4 a2 40. Ra1 Ra3 41. Ne7+ Kh8 42. Kf5 Ra6 43. Ne6 1-0

[Event "Match/Nation NED-ENG (4,5-5,5) (6-4)"]
[Site "Amsterdam"]
[Date "1937.05.16"]
[Round "1.9"]
[White "Morry, William Ritson"]
[Black "De Groot, Adriaan"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "52"]
[EventDate "1937.05.16"]
[EventType "team-match"]
[EventRounds "2"]
[EventCountry "NED"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "England"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "ENG"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 d6 3. b4 cxb4 4. a3 bxa3 5. Nxa3 Nf6 6. Bb5+ Bd7 7. Qe2 g6 8. Bb2 Bg7 9. 0-0 0-0 10. d4 Bxb5 11. Nxb5 a6 12. e5 dxe5 13. dxe5 Nh5 14. Qe3 Nc6 15. Nc3 Qd7 16. Rfd1 Qf5 17. Nd5 e6 18. Nb6 Rad8 19. Nd7 Rfe8 20. h3 Nf4 21. c4 Nb4 22. Qb6 Nbd3 23. Nf6+ Bxf6 24. exf6 Nxh3+ 25. gxh3 Qxf3 26. Rd2 Nf4 0-1

[Event "NED Team-ch 1936/37"]
[Site "Netherlands"]
[Date "1937.03.07"]
[Round "5.5"]
[White "Nieukerke, Karel J"]
[Black "De Groot, Adriaan"]
[Result "1-0"]
[ECO "C47"]
[PlyCount "53"]
[EventDate "1936.11.08"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Den Haag DD"]
[BlackTeam "Amsterdam VAS"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 0-0 8. 0-0 d5 9. exd5 cxd5 10. Bg5 c6 11. Qf3 Be7 12. Rae1 Be6 13. Qg3 Re8 14. Nd1 Qa5 15. a3 Qb6 16. c3 c5 17. Bb1 d4 18. Re5 g6 19. Kh1 Nd7 20. Re4 Bxg5 21. Qxg5 dxc3 22. Nxc3 Qxb2 23. Nd5 Bxd5 24. Qxd5 Qb5 25. Bd3 Nf6 26. Bxb5 Nxd5 27. Rxe8+ 1-0

[Event "NED Team-ch 1936/37"]
[Site "Netherlands"]
[Date "1937.01.10"]
[Round "3.4"]
[White "De Groot, Adriaan"]
[Black "Karper, Jacob G"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "51"]
[EventDate "1936.11.08"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam VAS"]
[BlackTeam "Amsterdam ASC"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. c3 dxc3 5. Nxc3 d6 6. Bc4 e6 7. 0-0 a6 8. a4 Be7 9. Qe2 Nf6 10. Rd1 Qc7 11. Bf4 e5 12. Bg5 Na5 13. Ba2 Be6 14. Nd5 Bxd5 15. exd5 b6 16. b4 Nb7 17. Bc4 a5 18. Bb5+ Nd7 19. Bxe7 Kxe7 20. Rac1 Qb8 21. Nd4 Nd8 22. Nf5+ Ke8 23. Nxg7+ Kf8 24. Nh5 Ra7 25. Qg4 Rg8 26. Qf5 1-0

[Event "NED Team-ch 1936/37"]
[Site "Netherlands"]
[Date "1936.12.06"]
[Round "2.5"]
[White "De Groot, Adriaan"]
[Black "Van den Tol, Theo P"]
[Result "1/2-1/2"]
[ECO "E38"]
[PlyCount "58"]
[EventDate "1936.11.08"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam VAS"]
[BlackTeam "Rotterdam NRSV"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. e3 0-0 6. Nf3 c5 7. cxd5 Qxd5 8. Bd2 Bxc3 9. bxc3 Nc6 10. c4 Qd6 11. Bc3 cxd4 12. exd4 b6 13. Be2 Bb7 14. 0-0 Rfd8 15. Rfd1 Rac8 16. a4 Qf4 17. Qb2 Ne4 18. Be1 Ng5 19. a5 Nxa5 20. Ne5 f6 21. Bxa5 fxe5 22. Bc3 Qe4 23. d5 exd5 24. Bd3 Qg4 25. Bxe5 d4 26. Bg3 Nh3+ 27. Kh1 Rf8 28. Bf1 Rcd8 29. Rd2 Rd7 1/2-1/2

[Event "Munich Schach-Olympia (No FIDE event)"]
[Site "Munich"]
[Date "1936.08.31"]
[Round "20"]
[White "De Groot, Adriaan"]
[Black "Ormond, Jean Louis"]
[Result "1-0"]
[ECO "E16"]
[PlyCount "81"]
[EventDate "1936.08.17"]
[EventType "team-tourn"]
[EventRounds "21"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Switzerland"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "SUI"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 Ne4 8. Qc2 0-0 9. Nc3 Nf6 10. 0-0 d6 11. e4 Nbd7 12. d5 e5 13. Rab1 a5 14. a3 Rc8 15. Rbc1 Qe7 16. Kh1 Rfd8 17. Nh4 Ne8 18. f4 f6 19. f5 c6 20. g4 Kh8 21. Rf3 Nc7 22. Rcf1 b5 23. Rh3 Kg8 24. dxc6 Bxc6 25. cxb5 Nxb5 26. Ng6 Qf7 27. Qd3 Nxc3 28. Rxh7 Qa2 29. Ne7+ Kf7 30. Nxc8 Rxc8 31. Qxc3 Nc5 32. Qh3 Rg8 33. Qe3 Qxb2 34. g5 Qb5 35. Rd1 Qb7 36. gxf6 Kxf6 37. Rxd6+ Kf7 38. Rd1 Nxe4 39. Rg1 Ra8 40. Re1 Nf6 41. Rxg7+ 1-0

[Event "Munich Schach-Olympia (No FIDE event)"]
[Site "Munich"]
[Date "1936.08.30"]
[Round "19"]
[White "De Groot, Adriaan"]
[Black "Richter, Emil"]
[Result "0-1"]
[ECO "D93"]
[PlyCount "56"]
[EventDate "1936.08.17"]
[EventType "team-tourn"]
[EventRounds "21"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Czechoslovakia"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "CSR"]

1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Nc3 g6 5. Bf4 Bg7 6. e3 0-0 7. Qb3 Qa5 8. Be2 dxc4 9. Qxc4 b5 10. b4 Qd8 11. Qd3 a5 12. bxa5 b4 13. Nd1 Qxa5 14. 0-0 Ba6 15. Qc2 b3 16. Qb2 Bxe2 17. Qxe2 bxa2 18. e4 c5 19. Bd2 Qa6 20. Re1 Qxe2 21. Rxe2 cxd4 22. Nxd4 Nxe4 23. Rxe4 f5 24. Rxe7 Bxd4 25. Bc3 Bxc3 26. Nxc3 Rc8 27. Nd5 Rc1+ 28. Rxc1 a1Q 0-1

[Event "Munich Schach-Olympia (No FIDE event)"]
[Site "Munich"]
[Date "1936.08.29"]
[Round "17"]
[White "De Groot, Adriaan"]
[Black "Rastrelli, Alberto"]
[Result "1-0"]
[ECO "D06"]
[PlyCount "73"]
[EventDate "1936.08.17"]
[EventType "team-tourn"]
[EventRounds "21"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Italy"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "ITA"]

1. d4 d5 2. c4 Nf6 3. cxd5 Nxd5 4. Nf3 Bf5 5. Qb3 Nb6 6. Nc3 e6 7. e4 Bg6 8. h4 h6 9. Be3 N8d7 10. 0-0-0 Be7 11. Ne5 Bh7 12. f4 0-0 13. g4 a5 14. g5 a4 15. Qc2 Nd5 16. Nxd5 exd5 17. f5 hxg5 18. Nxd7 Qxd7 19. hxg5 dxe4 20. g6 Qxf5 21. Rxh7 Qxg6 22. Rh1 Bg5 23. Bxg5 Qxg5+ 24. Kb1 g6 25. Qh2 Kg7 26. Qh7+ Kf6 27. Bc4 Ra5 28. Rhg1 Qe3 29. Rdf1+ Rf5 30. Rxf5+ Kxf5 31. Rf1+ Kg5 32. Qg7 Ra8 33. Qf6+ Kg4 34. Qxf7 Ra5 35. Qxg6+ Rg5 36. Qh6 b5 37. Be6+ 1-0

[Event "Munich Schach-Olympia (No FIDE event)"]
[Site "Munich"]
[Date "1936.08.28"]
[Round "16"]
[White "Gereben, Erno"]
[Black "De Groot, Adriaan"]
[Result "1/2-1/2"]
[ECO "D39"]
[PlyCount "52"]
[EventDate "1936.08.17"]
[EventType "team-tourn"]
[EventRounds "21"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Hungary"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "NED"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Bb4+ 5. Nc3 dxc4 6. e4 c5 7. e5 cxd4 8. Qa4+ Nc6 9. 0-0-0 Bd7 10. Ne4 Be7 11. exf6 gxf6 12. Bh4 Nb4 13. Qxb4 Bxb4 14. Nxf6+ Kf8 15. Rxd4 Qa5 16. Nxd7+ Ke8 17. Nf6+ Kf8 18. Ne5 h5 19. Ned7+ Kg7 20. Bxc4 Rhc8 21. Kb1 Bc3 22. Re4 Bxb2 23. Kxb2 Qd2+ 24. Kb1 b5 25. Bb3 Qd3+ 26. Ka1 Qc3+ 1/2-1/2

[Event "Munich Schach-Olympia (No FIDE event)"]
[Site "Munich"]
[Date "1936.08.23"]
[Round "11"]
[White "De Groot, Adriaan"]
[Black "Toshev, Yury"]
[Result "0-1"]
[ECO "E16"]
[PlyCount "80"]
[EventDate "1936.08.17"]
[EventType "team-tourn"]
[EventRounds "21"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Bulgaria"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "BUL"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 0-0 8. Nc3 d6 9. 0-0 Ne4 10. Qc2 Nxc3 11. Qxc3 Nd7 12. b4 Qe7 13. Nd2 Bxg2 14. Kxg2 e5 15. e4 f5 16. exf5 Rxf5 17. Rae1 Qf7 18. dxe5 Nxe5 19. f4 Ng6 20. Qd4 Re8 21. Nf3 h6 22. b5 Rc5 23. Rxe8+ Qxe8 24. Re1 Qf7 25. Re4 d5 26. cxd5 Rxd5 27. Qc4 Kh7 28. Rd4 Ne7 29. Ne5 Qe6 30. Nc6 Nf5 31. Qd3 Rxd4 32. Nxd4 Qd5+ 33. Kh3 g6 34. Qc3 Qxd4 35. Qxc7+ Qg7 36. Qc2 Qd7 37. g4 Ne3 38. Qe2 h5 39. f5 hxg4+ 40. Kg3 Nxf5+ 0-1

[Event "Munich Schach-Olympia (No FIDE event)"]
[Site "Munich"]
[Date "1936.08.22"]
[Round "9"]
[White "De Groot, Adriaan"]
[Black "Broder, Mirko"]
[Result "1/2-1/2"]
[ECO "D39"]
[PlyCount "47"]
[EventDate "1936.08.17"]
[EventType "team-tourn"]
[EventRounds "21"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Yugoslavia"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "YUG"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Bb4+ 5. Nc3 dxc4 6. e4 c5 7. e5 cxd4 8. Qa4+ Nc6 9. 0-0-0 Bd7 10. Ne4 b5 11. Qxb5 Rb8 12. Qxc4 Nxe5 13. Qxd4 Qc7+ 14. Kb1 Nxf3 15. gxf3 Nxe4 16. fxe4 Bc3 17. Qd6 Qxd6 18. Rxd6 Bxb2 19. Kc2 Ba4+ 20. Kd2 0-0 21. Ra6 Bb5 22. Bxb5 Rxb5 23. Be3 Rd8+ 24. Ke2 1/2-1/2

[Event "Munich Schach-Olympia (No FIDE event)"]
[Site "Munich"]
[Date "1936.08.19"]
[Round "4"]
[White "De Groot, Adriaan"]
[Black "Arlauskas, Romanas"]
[Result "1-0"]
[ECO "D52"]
[PlyCount "69"]
[EventDate "1936.08.17"]
[EventType "team-tourn"]
[EventRounds "21"]
[EventCountry "GER"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]
[WhiteTeam "Netherlands"]
[BlackTeam "Lithuania"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "LTU"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. cxd5 Nxd5 8. Qd2 N7b6 9. Rc1 Nxc3 10. bxc3 Nd5 11. Bc4 b5 12. Bb3 Nxc3 13. 0-0 b4 14. Rfe1 Bb7 15. e4 Bd6 16. e5 Bc7 17. Qf4 h6 18. Bh4 g5 19. Qf6 Rh7 20. Bxe6 gxh4 21. Bxf7+ Rxf7 22. Qg6 0-0-0 23. Qxf7 Qxa2 24. e6 c5 25. Ne5 Qd5 26. Qg6 Bd6 27. Nf7 Bg3 28. f3 Qxd4+ 29. Kh1 Bxf3 30. hxg3 Qf2 31. gxh4 Rd2 32. Nd6+ Kc7 33. Qf7+ Kb6 34. Qxf3 Qxh4+ 35. Kg1 1-0

[Event "NED-ch09 sf-C"]
[Site "The Hague"]
[Date "1936.05.23"]
[Round "3"]
[White "Veerkamp, J."]
[Black "De Groot, Adriaan"]
[Result "1-0"]
[ECO "B02"]
[PlyCount "39"]
[EventDate "1936.05.21"]
[EventType "tourn"]
[EventRounds "3"]
[EventCountry "NED"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. e5 d4 4. Nce2 Ng4 5. f4 h5 6. Nf3 c5 7. Ng3 g6 8. Bc4 e6 9. 0-0 Bd7 10. d3 Bc6 11. Ng5 Nh6 12. Nxh5 gxh5 13. Qxh5 Bd5 14. Nxe6 Bxe6 15. Bxe6 Qe7 16. f5 Nxf5 17. Bxf7+ Qxf7 18. Qxh8 Nc6 19. Bg5 Kd7 20. Qh3 1-0

