ModernChess, Opening Databases, 14 June 2020.
The Owen Defence is one of the most interesting and original among hyper-modern openings. It combines ideas from several different openings, such as the Queen's Indian, the Bogo-Indian, the Nimzo-Indian and the Dutch. Black completely refrains from occupying the centre with his pawns and controls it with his pieces from afar, frequently involving the f-pawn in the process. This database aims to offer a complete Owen repertoire against 1.c4 that avoids transpositions to the Queen's Indian or other main openings. The database consists of 24 theoretical chapters and 16 interactive test positions.