Grünfeld Defence
The Grünfeld Defence is a chess opening characterised by the moves:
1. d4 Nf6
2. c4 g6
3. Nc3 d5
Black offers White the possibility of 4.cxd5, which may be followed by 5
...Nxd5 and 5.e4, giving White an imposing central pawn duo. Wikipedia
ECO: D70–D99
Moves: 1.d4 Nf6 2.c4 g6 3.Nc3 d5
Named after: Ernst Grünfeld
Origin: Bad Pistyan, Piešťany, 1922