Looking to play a Benoni, Benko or perhaps a Blumenfeld gambit? Well, what happens when your opponent opts to be a spoiler by playing an Anti-Benoni/Benko system with 1 d4 Nf6 2 c4 c5 3 Nf3? There is the option of the aggressive 3 ...cxd4 4 Nxd4 e5!? - a gambit with a good reputation and pedigree, having being played and pioneered by a young Garry Kasparov. The Anti-Benoni/Benko Gambit often leads to sharp play with easy and harmonious development of the Black's pieces. And in a new series of Boris Alterman's Gambit Guide, our resident gambit guru takes a closer look at the Anti-Benoni/Benko Gambit with 1 d4 Nf6 2 c4 c5 3 Nf3 cxd4 4 Nxd4 e5!?