Chess Openings Lab
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English Opening: Symmetrical Variation, Two Knights, Fianchetto Variation

The Two Knights Fianchetto arises after 1.c4 c5 2.Nc3 Nc6 3.g3, with White's bishop headed for g2 before Nf3. Black can copy with ...g6, develop with ...Nf6, or play ...e6 and ...d5 to take the center.

Moves
1.c4 c5 2.Nc3 Nc6 3.g3
ECO
A36
Engine
+0.24 · level (Stockfish 17.1, depth 20)
Played
972 games in our lichess sample
White scores
53.3%

Key ideas for both sides

White

  • Against ...g6, play e3 and Nge2 so the knight can go to f4 and keep d5 under watch.
  • Against ...e6 and ...d5, take cxd5 and push d4 to isolate Black's d5 pawn.
  • Use h3 and g4 as a kingside space plan when Black's pieces are slow to coordinate.

Black

  • After ...g6 and ...Bg7, jump ...Ne5 to hit c4 and ask White's knight where it belongs.
  • Play ...e6 and ...d5, accepting an isolated pawn in exchange for open lines and active pieces.
  • Develop ...Nf6 first if you prefer to delay committing the e- and d-pawns.

Plans and pawn structure

The early g3 lets White choose between Ne2 and Nf3 later. In the ...g6 lines, White plays e3, Nge2 and Nf4 to cover d5, and Black uses ...Ne5 and ...d6 to target the c4 pawn. In the ...e6 lines, play turns into a Tarrasch-type structure with an isolated d5 pawn, where White's g2 bishop presses and Black relies on active pieces and open files for compensation.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.24: level. Its three top choices for Black:

  1. +0.24 3...g6 4.e3 Bg7 5.Nge2 Ne5 6.Nf4
  2. +0.27 3...Nf6 4.Bg2 e6 5.Nf3 d5 6.cxd5
  3. +0.28 3...e6 4.Nf3 d5 5.cxd5 exd5 6.d4

Pawns, from White's side.

How it scores on lichess

972 rated lichess games reached this position; White scored 53.3%.

under 120050.8%
1200–159963.6%
1600–199951.2%
2000 and up48.1%

Light: White wins. Grey: draws. Dark: Black wins. About the sample.

Where it goes next

  • Symmetrical Variation, Botvinnik System Reversed, with Nf33...g6 · rare

How to play against it

For Black: choose your structure now. ...g6 leads to quiet symmetry where ...Ne5 is a useful resource. ...e6 and ...d5 gives open play but an isolated pawn after d4. Avoid slow moves that let White build both e3 and d4 without challenge.

Questions

What are the moves of the English Opening: Symmetrical Variation, Two Knights, Fianchetto Variation?

The English Opening: Symmetrical Variation, Two Knights, Fianchetto Variation starts 1.c4 c5 2.Nc3 Nc6 3.g3. Its ECO code is A36.

Is the English Opening: Symmetrical Variation, Two Knights, Fianchetto Variation good for White?

Stockfish 17.1 rates the position +0.24 at depth 20, which is level. In 972 lichess games from our sample, White scored 53.3%. Good for White players who like flexibility; Black has several solid choices.

What is the main idea of the English Opening: Symmetrical Variation, Two Knights, Fianchetto Variation?

White commits to Bg2 and keeps the king's knight flexible. Black chooses between a symmetrical ...g6 setup and a central ...e6 and ...d5 plan.

What should Black play next?

The engine's first choice is g6, with Nf6 and e6 close behind. ...g6 mirrors White and prepares ...Bg7 and ...Ne5.

Updated October 2026. Sources and method.