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(60) Marshall – Teichmann Queen’s Gambit Declined [D52] Marshall tried a speculative kingside attack, sacrificing important queenside material in the process. Teichmann could have consolidated his decisive advantage but instead dangerously exposed his king with an unwise recapture, letting Marshall back into the game. The American eventually prevailed in an imperfectly played but fascinating ending that one can analyze for days. 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.Nf3 c6 6.e3 Qa5 [Diagram] The first Cambridge Springs Defense of the tournament. The previous year, at Monte Carlo, against the same opponent, Teichmann chose 6...Bd6. Then 7.Bd3 Qe7 8.cxd5 (a Marshall standard, stabilizing the central pawn structure and freeing up his pieces for attack) 8...exd5 9.Qc2 Qd8?! (9...0-0!?) 10.e4?! (10.0-0!?), with a typical Marshall middlegame. 7.Nd2 Later, in the New York 1924 tournament book, Alekhine would pronounce 7.cxd5 the only serious test of the variation. 7...Ne4 Swiderski-von Bardeleben, 14th DSB Congress 1904, saw 7...dxc4 8.Bxf6 Nxf6 9.Nxc4 Qc7 10.Bd3 Be7 11.0-0 0-0 12.Rc1 Bd7, with the usual White advantage. 8.cxd5 “A very pretty surprise move, which is bad however, as it rounds off Black’s pawn position and should lead to a complete loss of the opening advantage.” (Tarrasch) “More usual is the capture with the d2-knight – a more logical move, since the latter piece has less scope.” (Reinfeld) [Diagram] 8...Nxd2 “A surprise is generally answered with a blunder, as in this case. After 8...Nxg5 9.h4 (not 9.dxc6 Nf6 10.h4 Nge4 saving the piece) 9...Ne4! 10.Ndxe4 exd5 11.Nd2 Nf6 followed by Bd6, Black has the better game because of his fine development and his two bishops. After the text, White obtains a good development and the advantage returns to him.” (Tarrasch) After 8...Nxg5, interesting is 9.dxc6! (Tarrasch’s 9.h4 Ne4 10.Ndxe4 exd5 is no more than level after 11.Ng3 Nf6) 9...Nf6 (9...bxc6?! 10.h4y) 10.Bb5! (10.h4? Nge4) 10...Ke7 (10...Kd8 11.Bd3! h6 12.Nc4 Qc7 13.f4 Ngh7 14.cxb7 Bxb7 15.0-0 Be7 16.Ne5, with two pawns for the piece and a far superior position) 11.Bd3 h6 12.h4 Ngh7 13.cxb7 Bxb7 14.Nc4 Qc7 15.0-0, with the better practical chances. 9.Qxd2 exd5 10.Bd3 Bb4 “Intending a faulty exchange; the bishop belongs on d6.” (Tarrasch) 11.0-0 0-0 12.a3 Bxc3 13.bxc3 Re8 [Diagram] 14.f4 “With two bishops, superior development, and a strong center, White has the considerably better game;
