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Chess Opening Theory/1. d4/1...d5/2. c4/2...c6/3. Nf3/3...Nf6/4. Nc3/4...a6/5. c5
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| Chebanenko Slav Advance System | |
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Position in Forsyth-Edwards Notation (FEN)
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| Moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c5 | |
| ECO code: D15 | |
| Parent: Chebanenko Slav | |
5. c5 · Advance System
[edit | edit source]White plays 5. c5 to control the weak b6 square and forestall any ...dxc4 or ...b5 ideas. If White can make this space advantage permanent, they will have a very comfortable game, so Black needs to start planning a pawn break on either b6 or e5. To support this, the main move is 5...Nbd7, developing the queen's knight to its best available square and preparing whichever break Black chooses.
The main alternatives are 5...Bf5, developing the bishop before it gets blocked in by ...Nbd7, and 5...g6, preparing a fianchetto.
5...Bg4 is also played occasionally, with the idea of pressuring the e5 square indirectly, but there is no reason White cannot simply occupy it at once with 6. Ne5.
Theory table
[edit | edit source]1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c5
| 5 | 6 | ||
|---|---|---|---|
| ... Nbd7 |
Bf4 Nh5 |
⩲ | |
| ... Bf5 |
Bf4 Nbd7 |
⩲ | |
| ... g6 |
Bf4 Bg7 |
⩲ | |
| ... Bg4 |
Ne5 Bf5 |
± |
References
[edit | edit source]
2. Nf3
2. Other
1. e4 ...other:
2. other
With 2...e6:
With 2...g6:
With other 2nd moves for Black:
With 2...g6:
With other 2nd moves for Black:
2. other:
1. d4 f5
Dutch defence
Dutch defence
1. d4 ...other:
Flank
Unorthodox
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