(146) Langseth,DuWayne (1869) - Brown,Dean (1400) [A45] Colorado Springs Open Colorado Springs (4.7), 08.03.2009 [Fritz 8 (60s)] A45: Trompowsky Attack 1.d4 Nf6 2.e3 e6 last book move 3.f4 c5 4.c3 Be7 5.Nf3 0-0 6.Bd3 d5 7.Ng5 c4 This push gains space 8.Bc2 h6 9.h4 [9.Nf3!?= should be investigated more closely] 9...b5 10.a3 Consolidates b4 10...a5 11.g4 a4 [11...Re8 12.Nh3 e5 13.g5=/+ ] 12.Qf3 White prepares f5 12...g6 Controls f5 13.Nh3 e5 14.f5 White gets more space [14.fxe5!? must be considered 14...Nxg4 15.0-0= ] 14...e4 Black wins space 15.Qf4? [>=15.Qg2=/+ ] 15...Kg7?? gives away a clear win [>=15...Bd6 and the scales tip in favour of Black 16.Qf1 Nxg4-+ ] 16.g5+/= White gains space 16...Bd6 17.gxf6+ Qxf6 18.Qf2 Qxf5 19.Nd2 Qg4 White cannot castle king side 20.Bd1 [>=20.Nf4!? Qf5 21.Nf1+- ] 20...Qg3+/= 21.Nf1 Qxf2+ 22.Kxf2 Bxh3 23.Rxh3 Nd7 24.Bd2 f5 25.Be2 Nf6 26.Nh2 Bxh2 [>=26...Ng4+ 27.Kg1 Nxh2 28.Rxh2 Bxh2+ 29.Kxh2 g5-/+ ] 27.Rxh2+/- Ng4+ 28.Bxg4 fxg4+ 29.Kg3?? a transit from better to worse [>=29.Ke2+/= is just about the only chance] 29...Rf3+-+ [29...Rf3+ 30.Kg2 g3-+ ] 30.Kxg4 h5+ 0-1