Adrianus Dingeman (Adriaan) de Groot (Santpoort, 26 October 1914 <unk> Schiermonnikoog, 14 August 2006) was a Dutch chess master and psychologist, who conducted some of the most famous chess experiments of all time in the 1940s-60. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ De Groot represented the Netherlands in the Chess Olympiads of
1937 and 1939.<unk> ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️