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Chess Opening Theory/1. d4/1...d5/2. c4/2...e6/3. Nc3/3...Nf6/4. Nf3/4...Bb4

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Ragozin Defence
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8
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5
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Position in Forsyth-Edwards Notation (FEN)

rnbqk2r/ppp2ppp/4pn2/3p4/1bPP4/2N2N2/PP2PPPP/R1BQKB1R

Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4
ECO code: D38
Parent: Queens Gambit declined

4...Bb4 · Ragozin Defence

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The mainlines continues either

Theory table

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1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4

5
Moscow variation Bg5
h6		 =
Vienna variation Bg5
dxc4		 =
Alekhine variation Qa4+
Nc6		 =


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Chess Opening Theory
1. e4 e5
Open game
2. Nf3
With 2...Nc6:
  • Four knights (
    )
  • Italian game (
    )
  • Spanish game (
    )

With other 2nd moves:

2. Other

1. e4 c5
Sicilian defence
2. Nf3 · Open Sicilian
With 2...Nc6:
With 2...d6:
With 2...e6:
With other 2nd moves:
Anti-Sicilians
1. e4 ...other:
Caro-Kann
French
Other


1. d4 d5
Closed game
2. c4
2. Nc3
2. other
1. d4 Nf6
Indian defence
2. c4
With 2...e6:

With 2...g6:

With other 2nd moves for Black:
2. Nf3
2. other:
1. d4 f5
Dutch defence
1. d4 ...other:
Flank
Unorthodox
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