About this opening
English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with .. d6 is an opening in the Encyclopedia of Chess Openings,
classified under code A29. ECO group A (A00–A99)
covers flank and irregular openings, including the English, Bird, Réti and Dutch defences. This particular variation is reached
after 11 half-moves from the
starting position, with the move sequence 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bc5 5. d3 d6 6. Bg2.
It belongs to the English Opening family.
Within that family this is a level-4 branch (the King's English Variation → Four Knights Variation → Fianchetto Line → with .. d6 line). The immediate parent line is English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, transitioned via 6.Bg2.
The opening sequence in prose form: 1.c4 e5, 2.Nc3 Nf6, 3.Nf3 Nc6, 4.g3 Bc5, 5.d3 d6, 6.Bg2. From this position 3 named continuations are recorded in the encyclopaedia, each leading to a distinct theoretical line.