About this opening
Neo-Grünfeld Defense: Delayed Exchange Variation is an opening in the Encyclopedia of Chess Openings,
classified under code D74. ECO group D (D00–D99)
covers closed games and semi-closed games beginning 1.d4 d5, covering the Queen's Gambit, Slav, Grünfeld and related queen-pawn structures. This particular variation is reached
after 13 half-moves from the
starting position, with the move sequence 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O.
The opening sequence in prose form: 1.d4 Nf6, 2.c4 g6, 3.Nf3 Bg7, 4.g3 O-O, 5.Bg2 d5, 6.cxd5 Nxd5. From this position the encyclopaedia records no further canonical continuations — practical play branches into unnamed transpositions or returns to the parent line for alternative ideas.