Adrianus Dingeman De Groot
Number of games in database: 57
Years covered: 1936 to 1947
Overall record: +20 -16 =21 (53.5%)*
   * Overall winning percentage = (wins+draws/2) / total games
      Based on games in the database; may be incomplete.

MOST PLAYED OPENINGS
With the White pieces:  Queen's Indian (7)      E16 E18 E15 E17 E19  Ruy Lopez (6)      C79 C82 C90 C71 C65  Sicilian (5)      B58 B84 B39 B40 B72  Orthodox Defense (4)      D63 D68 D51 D52	With the Black pieces:  Grunfeld (9)      D95 D96 D80 D85 D74  King's Indian (5)      E86 E62 E67 E81

NOTABLE GAMES: [what is this?]
   E Gereben vs A De Groot, 1936 1/2-1/2

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ADRIANUS DINGEMAN DE GROOT (born Oct-26-1914, died Aug-14-2006) Netherlands [what is this?] Adriaan de Groot was a Professor of Psychology and a strong amateur player. He represented the Netherlands in the Olympiads at Munich 1936, Stockholm 1937 and Buenos Aires 1939. His book 'Thought and Choice in Chess' is an important contribution to understanding how a chess master thinks. He took a bit of interest in seeing how Bs6676 (Computer) played. Wikipedia article: Adriaan de Groot

page 1 of 3; games 1-25 of 57  Game   Result Moves Year Event/Locale Opening 1. A De Groot vs Yury Toshev   0-1 40 1936 Munich Olympiad E16 Queen's Indian 2. A De Groot vs M Broeder   ½-½ 24 1936 Munich ol (Men) D39 Queen's Gambit Declined, Ragozin, Vienna Variation 3. A De Groot vs R Arlauskas   1-0 35 1936 Munich Olympiad D52 Queen's Gambit Declined 4. A De Groot vs J L Ormond   1-0 41 1936 Munich Olympiad E16 Queen's Indian 5. A De Groot vs E Richter   0-1 28 1936 Munich Olympiad D15 Queen's Gambit Declined Slav 6. A De Groot vs A Rastrelli   1-0 37 1936 Munich Olympiad D06 Queen's Gambit Declined 7. E Gereben vs A De Groot ½-½ 26 1936 Munich ol (Men) D39 Queen's Gambit Declined, Ragozin, Vienna Variation 8. A De Groot vs I Pleci   ½-½ 21 1937 7th olm final D63 Queen's Gambit Declined, Orthodox Defense 9. A De Groot vs C Pirie   1-0 51 1937 7th olm final E17 Queen's Indian 10. A De Groot vs F Zita   ½-½ 52 1937 7th olm final E18 Queen's Indian, Old Main line, 7.Nc3 11. A De Groot vs M Broeder   ½-½ 19 1937 7th olm final D68 Queen's Gambit Declined, Orthodox Defense, Classical 12. S Petursson vs A De Groot   0-1 40 1937 7th olm final E81 King's Indian, Samisch 13. M Defosse vs A De Groot   0-1 43 1937 7th olm final D85 Grunfeld 14. H C Christoffersen vs A De Groot   ½-½ 45 1937 7th olm final B03 Alekhine's Defense 15. A De Groot vs S Rosselli del Turco   1-0 41 1937 7th olm final D51 Queen's Gambit Declined 16. A De Groot vs K S Ojanen   ½-½ 31 1937 7th olm final E19 Queen's Indian, Old Main line, 9.Qxc3 17. A De Groot vs G Danielsson   0-1 47 1937 7th olm final E16 Queen's Indian 18. A De Groot vs J Petersen   0-1 36 1937 7th olm final D37 Queen's Gambit Declined 19. G Wheatcroft vs A De Groot   0-1 44 1937 7th olm final B05 Alekhine's Defense, Modern 20. I A Horowitz vs A De Groot   ½-½ 51 1937 7th olm final B03 Alekhine's Defense 21. L Abramavicius vs A De Groot   0-1 69 1937 7th olm final E86 King's Indian, Samisch, Orthodox, 7.Nge2 c6 22. T Regedzinski vs A De Groot   1-0 18 1937 7th olm final E62 King's Indian, Fianchetto 23. A De Groot vs G A Thomas   ½-½ 18 1938 ENG-NED E15 Queen's Indian 24. G A Thomas vs A De Groot   ½-½ 18 1938 ENG-NED B29 Sicilian, Nimzovich-Rubinstein 25. A De Groot vs J Van Den Bosch   ½-½ 69 1938 NED-ch10 B39 Sicilian, Accelerated Fianchetto, Breyer Variation  page 1 of 3; games 1-25 of 57

Dec-07-04    chessgames.com: Does anybody know if this player is the same as Adri de Groot? The names match, but the 50 year hiatus makes us think that perhaps it's a relative, or a coincidence. Dec-07-04    sneaky pete: <chessgames.com> It's a coincidence, two different people, probably unrelated. Professor A.D. de Groot, born around 1910, is the author of "Het denken van de schaker" (translated as "Thought and choice in chess" if I'm not mistaken) who did research for this work (a dissertation) during the 1938 Avro tournament. His career as a competetive player (strong amateur) was very short. Adri de Groot is a contemporary correspondence player, born around 1950 or later. Apr-05-06    DanRoss53: <sneaky pete> That is correct... for more on Dr. de Groot, check this out: http://en.wikipedia.org/wiki/Adriaa... Oct-21-08    squlpt: Lol..What a cool name Oct-21-08    sleepyirv: <squlpt> The Neatherlands have a lot of interesting names. Jul-24-09    myschkin: . . . In memoriam: "Adriaan de Groot, chess psychologist" http://www.chessbase.com/newsdetail... (by Frederic Friedel) * another spindocter: Prof. Fernand Gobet (cognitive psychology) * "Schachspieler denken nicht" (in German pdf ) http://www.lbremer.de/chrilly/degro... Oct-21-11    BIDMONFA: Adrianus Dingeman De Groot DE GROOT, Adrianus http://www.bidmonfa.com/de_groot_ad... _ Mar-11-13    Eduardo Bermudez: His book 'Thought and Choice in Chess' is an important contribution to understanding how a chess master thinks !!

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