The King's English Variation, Four Knights Variation, Fianchetto Line is a variation of the English Opening, catalogued as ECO A29. The line runs 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. d3 Be7 7. O-O O-O, reaching the position shown below after 14 half-moves.
Black holds the centre with pawns on e5. Development is level at two minor pieces each. It is White to move after seven moves. Both kings have castled kingside, so play tends to shift to the centre and the opposite flank.
On the English Opening generally: A flexible opening where White controls the center with c4. Can transpose into many different systems.
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The King's English Variation, Four Knights Variation, Fianchetto Line goes 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. d3 Be7 7. O-O O-O. It is a variation of the English Opening and is catalogued as ECO A29.
The King's English Variation, Four Knights Variation, Fianchetto Line is ECO A29. ECO codes group openings by their move order, so nearby codes cover closely related lines of the English Opening.
Stockfish evaluates the position after 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. d3 Be7 7. O-O O-O at -0.05 at depth 18, which is balanced. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.
Black holds the centre with pawns on e5. Development is level at two minor pieces each. It is White to move. Both kings have castled kingside, so play tends to shift to the centre and the opposite flank.