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Normal Topic 1.d4 d5 2.c3 move order in london system (Read 1111 times)
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Re: 1.d4 d5 2.c3 move order in london system
Reply #3 - 08/03/22 at 17:43:27
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I believe there are different reasons. 
1) First of all, Black is objectively fine
2) London players don't like grabbing the pawn Smiley Most players only want to build their triangle with e3-d4-c3 and be happy
3) The typical reason: If play c3 in the d4/d5 structures, you will be a tempo down if you ever want to play c4.
  

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Re: 1.d4 d5 2.c3 move order in london system
Reply #2 - 08/01/22 at 03:25:05
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an ordinary chessplayer wrote on 08/01/22 at 02:23:10:

2...c5 is not 100 percent clear, either. True, 1.d4 d5 2.c3 c5 3.dxc5 e6 4.b4 a5 5.a3 b6 6.cxb6 axb4 7.cxb4 Bxb4+ 8.axb4 Rxa1 9.Bb2 is probably advantageous for white, but the engine suggests 6...Qxb6 is about equal.

A bit of ancient theory by the way is 9...Rxb1 10. Qxb1 Nf6 11. e3 (Hort-Velimirovic, Novi Sad 1976) Qxb6 12. Bd4 Qb7 13. Nf3 Nc6 unclear according to Hort.

  
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Re: 1.d4 d5 2.c3 move order in london system
Reply #1 - 08/01/22 at 02:23:10
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It might be worth trying against a certain type of black player, but objectively it's too tame. Forcing black to make good moves is not a recommended white opening strategy. Suppose 1.d4 d5 2.c3 Nf6 3.Bf4 Nh5 4.Bd2 Nf6 and what should white play now?

2...c5 is not 100 percent clear, either. True, 1.d4 d5 2.c3 c5 3.dxc5 e6 4.b4 a5 5.a3 b6 6.cxb6 axb4 7.cxb4 Bxb4+ 8.axb4 Rxa1 9.Bb2 is probably advantageous for white, but the engine suggests 6...Qxb6 is about equal.
  
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1.d4 d5 2.c3 move order in london system
07/31/22 at 22:36:28
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Why isn't the move order 1.d4 d5 2.c3 c5 3.dxc5 used in the london system? This would seem to discourage an early c5 and force black to start with something like Nf6.
  
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