The Symmetrical Variation, Three Knights, Fianchetto Variation is a variation of the English Opening, catalogued as ECO A37. The line runs 1. c4 c5 2. Nf3 Nc6 3. g3 g6 4. Bg2 Bg7 5. O-O d6 6. Nc3, reaching the position shown below after 11 half-moves.
The four central squares are empty of pawns, so the fight for them is being conducted by pieces. Development is level at three minor pieces each. It is Black to move after six moves. White has castled while Black’s king is still uncommitted.
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 Symmetrical Variation, Three Knights, Fianchetto Variation goes 1. c4 c5 2. Nf3 Nc6 3. g3 g6 4. Bg2 Bg7 5. O-O d6 6. Nc3. It is a variation of the English Opening and is catalogued as ECO A37.
The Symmetrical Variation, Three Knights, Fianchetto Variation is ECO A37. 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 c5 2. Nf3 Nc6 3. g3 g6 4. Bg2 Bg7 5. O-O d6 6. Nc3 at +0.16 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.
The four central squares are empty of pawns, so the fight for them is being conducted by pieces. Development is level at three minor pieces each. It is Black to move. White has castled while Black’s king is still uncommitted.