[Event "Roquebrune"] [Site "masterchessopen.com"] [Round "0"] [White "Adams, Mi"] [Black "Polugaevsky, L."] [Result "1/2-1/2"] [ECO "D00"] [Opening "Trompowsky: 2...d5 3.Bxf6 exf6"] 1.d4 Nf6 2.Bg5 d5 3.Bxf6 exf6 4.e3 Bd6 5.c4 ( { I think one of the reasons why this line is still doing well is that, recently, } 5.g3 { has become popular. For example, the excellent book 'Winning with the Trompowsky' by Peter Wells fails even to mention 5 c4. That's because it's a repertoire book, in which the author has to select options for White, so anyone reading it and playing Black will have no idea what is about to happen. } ) 5...dxc4 6.Bxc4 O-O 7.Nc3 c5 { It is natural to undermine the centre and this is repeatedly played, but it is hopeless! } ( { Other moves: } 7...a6 8.Qf3 { (a basic approach to prevent ...b7-b5 by pinning the pawn to the rook on a8) } 8...Nd7 9.Bd3 Re8 10.Nge2 Rb8 11.h4 Nf8 12.g4 Bd7 13.O-O-O c5 14.dxc5 Bxc5 15.g5 { led to a kingside attack in S.Prayitno-C.Barus, Tarakan 2008. } ) ( 7...f5 8.Qh5 ( 8.Rc1 { is the solid response } ) 8...g6 9.Qh6 c6 10.h4 Re8 11.Bxf7+ ( { I suspect } 11.h5 { is probably even stronger, and if } ) 11...Kxf7 12.Qxh7+ Ke6 ( 12...Kf8 { was necessary, when White can take a draw with } 13.Qh8+ ( { or try for more with } 13.h5 ) 13...Kf7 14.Qh7+ ) ) ( 7...c6 8.Qh5 Qe7 9.Nge2 Nd7 10.Ng3 g6 11.Qf3 f5 12.h4 Bxg3 ) {#d} 1/2-1/2