[Event "NED Team-ch 1921/22"]
[Site "Netherlands"]
[Date "1922.01.22"]
[Round "1.5"]
[White "Van Kooy, W."]
[Black "Wiersma, P."]
[Result "1-0"]
[ECO "C41"]
[PlyCount "45"]
[EventDate "1922.01.22"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "The Hague DD"]
[BlackTeam "Amsterdam ASC"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 d6 5. Be3 exd4 6. Nxd4 Be7 7. Be2 0-0 8. 0-0 Ne5 9. h3 c6 10. f4 Ng6 11. Bf3 Qc7 12. Nde2 b5 13. a3 Bb7 14. Ng3 Nd7 15. Nf5 Nb6 16. Bd4 f6 17. Bh5 Rfe8 18. Qg4 d5 19. Bxg6 hxg6 20. Qxg6 Bf8 21. Bxf6 dxe4 22. Be5 Rxe5 23. fxe5 1-0

[Event "Amsterdam ASC Winter 1920/21"]
[Site "Amsterdam"]
[Date "1921.01.??"]
[Round "8"]
[White "Euwe, Max"]
[Black "Wiersma, P."]
[Result "1-0"]
[ECO "C29"]
[PlyCount "45"]
[EventDate "1920.12.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Bg4 6. Qe2 Nxc3 7. bxc3 Nd7 8. d4 Be7 9. Qf2 0-0 10. Bd3 c5 11. 0-0 c4 12. Be2 f6 13. Qg3 Bxf3 14. Bh6 g6 15. Bxf3 Qa5 16. Bg4 Nb6 17. exf6 Rxf6 18. Rxf6 Bxf6 19. Rf1 Bg7 20. Be6+ Kh8 21. Bxg7+ Kxg7 22. Rf7+ Kg8 23. Qe5 1-0

[Event "Amsterdam ASC Winter 1920/21"]
[Site "Amsterdam"]
[Date "1921.01.??"]
[Round "10"]
[White "Euwe, Max"]
[Black "Wiersma, P."]
[Result "1-0"]
[ECO "C45"]
[PlyCount "39"]
[EventDate "1920.12.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 d6 5. Nxd4 Nxd4 6. Qxd4 Nf6 7. 0-0 Be7 8. b3 0-0 9. Bb2 Ne8 10. f4 Bf6 11. e5 dxe5 12. fxe5 Qxd4+ 13. Bxd4 Be7 14. Nc3 c5 15. Nd5 cxd4 16. Nxe7+ Kh8 17. Bxf7 Nc7 18. Rf4 Be6 19. Ng6+ hxg6 20. Rh4# 1-0

[Event "Amsterdam ASC Winter 1920/21"]
[Site "Amsterdam"]
[Date "1921.01.??"]
[Round "12"]
[White "Wiersma, P."]
[Black "Euwe, Max"]
[Result "1-0"]
[ECO "D50"]
[PlyCount "19"]
[EventDate "1920.12.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c5 3. c4 e6 4. Nc3 cxd4 5. Nxd4 e5 6. Nf3 d4 7. Nd5 Nf6 8. Bg5 Be6 9. e4 dxe3 10. Nxf6+ 1-0

[Event "Amsterdam ASC Winter 1920/21"]
[Site "Amsterdam"]
[Date "1921.01.??"]
[Round "13"]
[White "Wiersma, P."]
[Black "Euwe, Max"]
[Result "0-1"]
[ECO "C68"]
[PlyCount "74"]
[EventDate "1920.12.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd7 8. Nc3 0-0-0 9. Bd2 Bd6 10. 0-0-0 Ne7 11. f4 f6 12. Rde1 Ng6 13. Rhf1 Rhe8 14. Nf5 Bxf5 15. exf5 Ne7 16. g4 Nd5 17. Nxd5 cxd5 18. Rxe8 Rxe8 19. Kd1 Kd7 20. Re1 Rxe1+ 21. Kxe1 d4 22. Ke2 Kc6 23. Kf3 Kd5 24. h4 c5 25. g5 c4 26. c3 d3 27. h5 h6 28. gxf6 gxf6 29. Be1 b5 30. b4 cxb3 31. axb3 Bc5 32. Bh4 a5 33. b4 Bd4 34. bxa5 Bxc3 35. a6 Kc6 36. a7 Kb7 37. Bf2 b4 0-1

[Event "Amsterdam ASC Winter 1920/21"]
[Site "Amsterdam"]
[Date "1920.12.??"]
[Round "3"]
[White "Euwe, Max"]
[Black "Wiersma, P."]
[Result "1-0"]
[ECO "C66"]
[PlyCount "87"]
[EventDate "1920.12.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 exd4 6. Nxd4 Bd7 7. 0-0 Nxd4 8. Qxd4 Bxb5 9. Nxb5 a6 10. Nc3 Be7 11. b3 0-0 12. Bb2 Nd7 13. Nd5 Bf6 14. Nxf6+ Qxf6 15. Qxf6 Nxf6 16. Bxf6 gxf6 17. Rad1 Rfe8 18. Rfe1 Re7 19. f3 Rae8 20. Kf2 Kg7 21. Rd5 Re5 22. g4 Rxd5 23. exd5 Rxe1 24. Kxe1 f5 25. Kf2 f4 26. Ke2 Kf6 27. Kd3 Ke5 28. c4 h6 29. h4 a5 30. a3 c5 31. dxc6 bxc6 32. b4 a4 33. Kc3 c5 34. b5 d5 35. cxd5 Kxd5 36. Kd3 c4+ 37. Kc3 Kc5 38. b6 Kxb6 39. Kxc4 Kc6 40. g5 h5 41. Kd4 Kd6 42. Ke4 Kc5 43. Ke5 Kc4 44. Kf6 1-0

[Event "Amsterdam ASC Winter 1920/21"]
[Site "Amsterdam"]
[Date "1920.12.??"]
[Round "1"]
[White "Wiersma, P."]
[Black "Euwe, Max"]
[Result "0-1"]
[ECO "C84"]
[PlyCount "106"]
[EventDate "1920.12.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3 Be7 6. 0-0 b5 7. Bb3 0-0 8. d3 d6 9. Be3 Na5 10. Ne2 Nh5 11. Ng3 Nxg3 12. fxg3 Nxb3 13. axb3 f5 14. exf5 Bxf5 15. Qd2 h6 16. h3 Kh7 17. Rae1 Bc8 18. Qe2 Bb7 19. Nh2 Qd7 20. Ng4 Qc6 21. Qd2 Rxf1+ 22. Rxf1 Rf8 23. Rxf8 Bxf8 24. Qf2 h5 25. Nh2 Be7 26. Nf3 Qd5 27. Nd2 Kg8 28. Ne4 Qf7 29. Ng5 Qxf2+ 30. Kxf2 Kf8 31. c4 bxc4 32. bxc4 Bc8 33. Ne4 Bf5 34. Kf3 Kf7 35. Bd2 Bxe4+ 36. Kxe4 Ke6 37. Bc3 c6 38. b3 d5+ 39. cxd5+ cxd5+ 40. Kf3 Kf5 41. Ba5 e4+ 42. dxe4+ dxe4+ 43. Ke2 Bd6 44. Be1 g6 45. Bf2 Ke5 46. g4 hxg4 47. Bg3+ Kd5 48. Bxd6 Kxd6 49. hxg4 Ke5 50. Ke3 g5 51. b4 Kd5 52. g3 Ke5 53. Ke2 Kd4 0-1

