411 REFERENCE · Wikibooks
Chess Opening Theory/1. d4/1...Nf6/2. c4/2...e6/3. Nc3/3...Bb4/4. Bg5/4...h6/5. Bh4/5...c5/6. d5
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Nimzo-Indian Defence rd nd bd qd kd rd pd pd pd pd pd pd nd pd pd pl bd pl bl nl pl pl pl pl pl pl rl ql kl bl nl rl
Nimzo-Indian Defence, Leningrad Variation
6. d5
White advances his center. If he can later play e4, it will be hard for Black to shake off his lack of space. Still, playing ...exd5 now and giving white a central majority would be a drastic step. Instead Black usually opts to play around White's d pawn, with ...d6 preparing ...e5, but there is another option: the so-called Averbakh Gambit. Black can sacrifice a pawn with 6...b5 7. dxe6 fxe6 8. cxb5, after which he can take the center with ...d5 and bring his rook to the half-open f file with ...O-O; the stray white pawn is usually disposed of by ...a6.
Theory table
.
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5
6
7
8
Leningrad Variation
...d6
e3Bxc3
bxc3e5
=
Averbakh Gambit
...b5
dxe6fxe6
cxb5d5
∞/=
Nimzo-Indian Defence