White usually plays 3.cxd5 when it is not advisable for black to play 3...Qxd5 because white gets a big lead in development. Instead, black should play 3...Nf6 intending to recapture on d5 with his Knight. White should be able to maintain the advantage with either 4.Nf3 or 4.e4 though.
One of the games I came across was the following amusing Spielmann debacle.
Rudolf Spielmann (1883-1942) is well known. His opponent is lesser known. Hans Fahrni (1874-1939) was a Swiss master. In 1892 he was joint Swiss champion. His best results were: 1909, first ahead of Tartakower, Alapin and Spielmann in a Munich quadrangular tournament and first place in 1911 at San Remo.
In 1916, he began suffering from psychosis…a generic term for a mental state often described as involving a "loss of contact with reality.” He was hospitalized, but after his release, he had a relapse.
In this game Spielmann played a horrible continuation and Fahrni handed him an ignominious defeat.
The game was played in the Barmen Meisterturnier A 1905. For the most part, it was a three-way race between Cohn, Swiderski and Forgacs, with occasional challenges from others.
The first two were tied for the lead after round 9, but Cohn lost to Swiderski in round 10 and was always a bit behind after that.
Forgacs, recovering from a slow start, caught Swiderski in round 11. Round 16 proved critical.
Cohn lost to Spielmann, who found his form for this game after losing five in a row! Perlis, going up against tail-ender Pettersson (who had scored one draw in 15 games), slowly frittered away an endgame.
That ended their challenges and Swiderski collapsed and lost his last two games while Forgacs won his last two games and took the tournament by a full point.
Although Spielmann’s play in the following game was hardly perfect, the game is a good example of why the Symmetrical Defense is not a good choice.
Hans Fahrni–Rudolf Spielmann1–0D02Barmen Meisterturnier B1905Stockfish 16
D06: Queen's Gambit: Symmetrical Defense 1.d4 d5 2.f3 c5 3.c4 c6 This is a poor decision because it costs black too much time. Transposing
into the Tarrach Defense with 3...e6 would have been better. 3...dxc4
is the only other viable alternative, but it is not entirely satisfactory. 4.e3 e6 5.xc4 a6 etc. 3...e5 4.cxd5 xd5 5.c3 d8 The only
reasonable move. 5...d6 6.b5 b8 7.d5 is not very appetizing for black.
6.d5 White already has a significant advantage. b8 6...b4 is a
losing move. 7.e4 a6 8.a3 a5 9.d2 Black has trapped his own N.
Galochkin,S-Rafalski,K (1550) Pardubice 2006 7.e4 Black has a serious lack
of development and his next mover only makes matters worse because it allow
white the opportunity to open up the position. However, even after, say, 7...
g6 black's position is pretty bad. e6 8.b5+ White is winning! d7 9.dxe6 fxe6 10.g5 b6 10...e7 is no better. 11.xd7+ xd7 12.xd7+ xd7 13.xe6 11.h5+ g6 12.f3 h6 13.f6 Black could safely resign at any time. xb5 13...g8 14.xe6+ xe6 15.xe6 There is no way to meet the threat of
Nxc7+ 14.xh8 d7 15.xb5 xb5 16.xe6 b4+ 17.c3 xe4+ 18.e3 b4+ 19.d2 f5 20.g7+ d8 21.e8+ c7 22.xb4 xe8+ 23.xe8+ d8 24.c3 xe8 25.0-0-0 b5 26.he1+ d8 27.a5+ Black finally resigned. This
game is a good argument for not playing the Symmetrical Defense! 1–0
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