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Chess Opening Theory/1. d4/1...Nf6/2. c4/2...g6/3. Nc3/3...d5/4. cxd5/4...Nxd5/5. Na4
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Grünfeld Defence rd nd bd qd kd bd rd pd pd pd pd pd pd pd nd nl pl pl pl pl pl pl pl rl bl ql kl bl nl rl
Grünfeld Defence - Nadanian Variation
5. Na4!?
This strange looking move was first employed by Ashot Nadanian in 1996. Usually it is not recommended to put Knights on the edge of the board, but here it is meaningful. White takes the important c5-square under control and is going to force black's Knight from the center with е4. Eventually, the a4-Knight can occupy the c5-square and attack the pawn on b7.
Theory table
.
1. d4 Nf6 2. c4 g6 3.Nc3 d5 4.cxd5 Nxd5
5
6
7
8
9
10
Na4Bg7
e4Nb6
Be3O-O
Nf3Bg4
=
...e5
dxe5Bb4+
Bd2Ne3
fxe3Bxd2+
Qxd2Qh4+
g3Qxa4
∞
...Nf6
Nf3Bg7
g3Nc6
Bf4Nd5
∞
References
Grünfeld Defence, Nadanian Variation