Queen's Gambit Declined, Semi-Tarrasch Defense (ECO D40) 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.e3 c5 5.Nf3 Nc6 6.a3 dxc4 7.Bxc4 cxd4 8.exd4 Be7 9.0–0 0–0 10.Be3 Bd7 11.Qd3 Rc8 12.Rac1 Qa5 13.Ba2 Rfd8 14.Rfe1 Be8 15.Bb1 g6 16.Qe2 Bf8 17.Red1 Bg7 18.Ba2 Ne7 19.Qd2 Qa6 (White has been vacillating with no clear strategy in view. Meanwhile, Steinitz has been piling up pressure against White's d-pawn.) 20.Bg5 Nf5 21.g4 Nxd4 (A combination which throws a harsh searchlight on the weaknesses in White's camp. Indeed, even 21...Nxg4 22.Bxd8 Rxd8 gives Black tremendous compensation for his modest investment.) 22.Nxd4 e5 23.Nd5 Rxc1 24.Qxc1 exd4 25.Rxd4 Nxd5 26.Rxd5 Rxd5 27.Bxd5 Qe2 28.h3 h6 29.Bc4 (If 29.Bxh6 Bxh6 30.Qxh6 Qd1+.) 29...Qf3 30.Qe3 Qd1+ 31.Kh2 Bc6 32.Be7 Be5+ (A neat combination to exploit the shattered nature of White's .) 33.f4 Bxf4+ 34.Qxf4 Qh1+ 35.Kg3 Qg1+ 0–1 (Mate in 10 follows: 36.Kh4 Qe1+ 37.Qg3 Qxe7+ 38.g5 Qe4+ 39.Qg4 Qe1+ 40.Qg3 hxg5+ 41.Kxg5 Qxg3+ 42.Kf6 Qf4+ 43.Ke7 Kg7 44.Kd8 Qb8+ 45.Ke7 Qf8#)
