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Chess Opening Theory/1. d4/1...d5/2. c4/2...e6/3. Nc3/3...Nf6/4. Nf3/4...c5

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Semi-Tarrasch Defense
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Position in Forsyth-Edwards Notation (FEN)
rnbqkb1r/pp3ppp/4pn2/2pp4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5

Semi-Tarrasch Defense

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General concepts

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Unlike the regular Tarrasch, in the Semi-Tarrasch Defense Black does not accept an isolated pawn, since he intends to recapture on d5 with the knight (as after 5.cxd5, 5...exd5 has long been known to be dubious after 6.Bg5), but he cedes a spatial advantage to White.

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.


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References

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v · t · e
Chess Opening Theory
1. e4 e5
Open games
2. Nf3
2...Nc6
3. Bb5
Spanish
3. Bc4
Italian
3. Nc3
Three knights
Other
2...Nf6
Russian
2...d6
Philidor
Other
2. f4
King's gambit
2...exf4
Accepted
Other
Declined
2. Nc3
Vienna
Other
1. e4 c5
Sicilian
2. Nf3
2...Nc6 3. d4 cxd4 4. Nxd4
2...Nc6 other
2...d6 3. d4 cxd4 4. Nxd4
2...d6 other
2...e6 3. d4 cxd4 4. Nxd4
2...e6 other
Others
Anti-Sicilians
1. e4 e6
French
1. e4 c6
Caro-Kann
1. e4 other
1. d4 d5
Closed games
2. c4
Queen's gambit
2. Nc3
2. other
1. d4 Nf6
Indian
2. c4 e6
2. c4 g6
2. c4 other
2. Nf3
2. other:
1. d4 f5
Dutch
1. d4 ...other:
1. Nf3
Zukertort
Flank
Unorthodox


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