Adrianus Dingeman De Groot
Number of games in database: 75
Years covered: 1936 to 2006
Overall record: +31 -16 =28 (60.0%)*
   * Overall winning percentage = (wins+draws/2) / total games
      Based on games in the database; may be incomplete.

MOST PLAYED OPENINGS
With the White pieces:  Sicilian (10)      B76 B42 B23 B99 B35  Ruy Lopez (6)      C95 C82 C65 C88 C67  Queen's Indian (4)      E18 E17 E19 E16  Sicilian Dragon (4)      B76 B35 B78	With the Black pieces:  Grunfeld (6)      D96 D95 D74 D85  King's Indian (5)      E97 E62 E81 E86

NOTABLE GAMES: [what is this?]
   A De Groot vs R Druon, 1998 1-0
   J Ribas vs A De Groot, 1997 0-1

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ADRIANUS DINGEMAN DE GROOT (born Oct-21-1914, died Aug-14-2006) Netherlands [what is this?] Adriaan De Groot born 1914 was a Professor of Psychology and 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.

page 1 of 3; games 1-25 of 75  Game   Result Moves Year Event/Locale Opening 1. E Gereben vs A De Groot   ½-½ 26 1936 Munich ol (Men) D39 Queen's Gambit Declined, Ragozin, Vienna Variation 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 G Danielsson   0-1 47 1937 7th olm final E16 Queen's Indian 4. A De Groot vs J Petersen   0-1 36 1937 7th olm final D37 Queen's Gambit Declined 5. G Wheatcroft vs A De Groot   0-1 44 1937 7th olm final B05 Alekhine's Defense, Modern 6. I A Horowitz vs A De Groot   ½-½ 51 1937 7th olm final B03 Alekhine's Defense 7. L Abramavicius vs A De Groot   0-1 69 1937 7th olm final E86 King's Indian, Samisch, Orthodox, 7.Nge2 c6 8. T Regedzinski vs A De Groot   1-0 18 1937 7th olm final E62 King's Indian, Fianchetto 9. A De Groot vs I Pleci   ½-½ 21 1937 7th olm final D63 Queen's Gambit Declined, Orthodox Defense 10. A De Groot vs C Pirie   1-0 51 1937 7th olm final E17 Queen's Indian 11. A De Groot vs F Zita   ½-½ 52 1937 7th olm final E18 Queen's Indian, Old Main line, 7.Nc3 12. A De Groot vs M Broeder   ½-½ 19 1937 7th olm final D68 Queen's Gambit Declined, Orthodox Defense, Classical 13. S Petursson vs A De Groot   0-1 40 1937 7th olm final E81 King's Indian, Samisch 14. M Defosse vs A De Groot   0-1 43 1937 7th olm final D85 Grunfeld 15. H C Christoffersen vs A De Groot   ½-½ 45 1937 7th olm final B03 Alekhine's Defense 16. A De Groot vs S Rosselli del Turco   1-0 41 1937 7th olm final D51 Queen's Gambit Declined 17. A De Groot vs Ojanen   ½-½ 31 1937 7th olm final E19 Queen's Indian, Old Main line, 9.Qxc3 18. A De Groot vs A Johannes van den Hoek   0-1 42 1942 NED-ch12 playoff A22 English 19. Stoltz vs A De Groot   1-0 49 1946 Beverwijk NED D74 Neo-Grunfeld, 6.cd Nxd5, 7.O-O 20. Cortlever vs A De Groot   ½-½ 23 1946 Beverwijk NED D96 Grunfeld, Russian Variation 21. H Kramer vs A De Groot   1-0 41 1946 Beverwijk NED D96 Grunfeld, Russian Variation 22. A De Groot vs O'Kelly 1-0 30 1946 Beverwijk NED C65 Ruy Lopez, Berlin Defense 23. A De Groot vs H Van Steenis   0-1 40 1946 Beverwijk NED D45 Queen's Gambit Declined Semi-Slav 24. A De Groot vs T Van der Tol   ½-½ 18 1946 Beverwijk NED C11 French 25. W Koomen vs A De Groot   1-0 51 1946 Beverwijk NED D95 Grunfeld  page 1 of 3; games 1-25 of 75

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...

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