Fianchetto — the bishop development that controls the board
Learn how flank bishop development powers the King's Indian, Grünfeld, and Catalan.
✓ Interactive boards ✓ Step-by-step ✓ Free forever
How It Works — Step by Step
Step 1: Advance the bishop pawn
White plays g3 — the first step of the kingside fianchetto. The g-pawn clears the way for the bishop to sit on g2 and command the long a8-h1 diagonal.
Step 2: Develop the bishop
White plays Bg2 — the bishop drops into the nest created by g3. It now commands the entire a8-h1 diagonal, watching over both wings from a single powerful square.
Step 3: Castle — the bishop guards the king
After castling, the fianchettoed bishop becomes the king's guardian on the long diagonal. The king on g1 is tucked behind the g2 bishop — one of the safest structures in chess.
The long diagonal in action
The fianchettoed bishop on g2 puts pressure all the way to b7. Combined with pawns, knights, and the centre, this diagonal pressure forces Black to be constantly alert. King's Indian, Grünfeld, Catalan — all exploit this idea.
Find fianchetto in my games
Kingsights scans your games to find fianchetto setups in your openings.
✓ Interactive boards ✓ Step-by-step ✓ Free forever