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The Three Knights Variation of the Queen's Gambit Declined is usually reached from the move order 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3, played to avoid the Nimzo-Indian Defense (from the white point of view) and the Exchange Variation of the Queen's Gambit Declined (from the black point of view). Black has a few options in response to the Three ...
In chess, an exchange variation is a type of opening in which there is an early, ... (1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.exd6) Queen's Gambit Declined ...
In chess, the Cambridge Springs Defense (or less commonly, the Pillsbury Variation) is a variation of the Queen's Gambit Declined that begins with the moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Nf3 c6 6. e3 Qa5
This third position shows another example. This position can be reached from the Exchange variation of the Queen's Gambit Declined: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd4 exd4 5. Bg5 Bb4 6. Qc2 h6. The identical position can also be reached from the Classical variation of the Nimzo-Indian Defence: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd4 ...
The Semi-Slav Defense is a variation of the Queen's Gambit Declined chess opening defined by the position reached after the moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6. The position may readily be reached by a number of different move orders. Black's supporting pawns resemble a mixture of the Orthodox Queen's Gambit Declined, e6, and the Slav ...
The Marshall Defense is a fairly dubious variation of the Queen's Gambit Declined. It was played by Frank Marshall in the 1920s, but he gave it up after losing with it to Alekhine at Baden-Baden in 1925. [1] It is no longer used by experienced players (Watson 2007:12–14).
The intended recapture with the f6-knight prevents Black from seamlessly transposing to the Semi-Tarrasch if White has played 4.Bg5. After 4...c5, White usually plays 5.cxd5 Nxd5 6.e3 or 6.e4, which leads to different types of middlegame play and has attracted the interest of strong players with both colors since the early twentieth century.
He originated the Rubinstein System against the Tarrasch Defense variation of the Queen's Gambit Declined: 1.d4 d5 2.Nf3 c5 3.c4 e6 4.cxd5 exd5 5.Nc3 Nc6 6.g3 Nf6 7.Bg2 (Rubinstein–Tarrasch, 1912). He is also credited with inventing the Meran Variation, which stems from the Queen's Gambit Declined but reaches a position of the Queen's Gambit ...