The Catalan Opening: Essentials (White Repertoire)
By Theo van Stratum
A White repertoire for the Catalan Opening (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2). Includes the Open Catalan with 5.Qa4+ (recovering the gambit pawn immediately, with check), the Open Catalan's calmer Classical Build-Up, the Closed Catalan Main Line, and the Open Catalan's older Hort System with 5.Na3.