Pre-order, expected in January-February 2026. The Queen's Gambit for Black repertoire. This book advocates the 1.d4 Nf6 2.c4 e6 3.Nf3 d5 move order for Black – with 3.Nc3 Bb4 having been covered in the sister volume Playing the Nimzo-Indian. These two Castellanos books offer complete repertoire for Black after 1.d4. In this book, by waiting for the Knight to appear on f3 before transposing to a Queen’s Gambit, Black reduces White’s options. Most space is devoted to the Vienna Variation (4.Nc3 dxc4) and Catalan (4.g3 dxc4). The author also spends 100 pages discussing White's options on moves 2 and 3 when he does not play c4, such as the London system, Torre attack, Trompowsky 2.Bg5, etc. The author provides detailed analyses and explanations, as well as many novelties. GM Renier Castellanos is also an experienced chess trainer. Further information is available at qualitychess.co.uk. 2 pictures.