Board / Files / c-File

C-File: Queen's Bishop File

The premier semi-open file in Sicilian and Queen's Gambit structures. Master queenside rook counter-attacks and central pressure with our interactive guide.

C-File

Flank Side: queenside

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Squares on C-File

c1 c2 c3 c4 c5 c6 c7 c8

Strategic Theme

Semi-Open File Counter-Attack & Sicilian Invasions

Tactical Breakdown

The C-file is one of the most active files in competitive chess. In the Sicilian Defense (1.e4 c5), Black trades the c-pawn to open the C-file for heavy rooks, targeting White's c2 pawn and queenside pieces.

Board Structure & Incursion Analytics50,000+ Games Analyzed

C-File Combat & Openness Metrics

Combat Rank

#4 / 8 Files

14.5% of all captures

Avg Open Ply

Ply 37.8

Pawns vacate file

Heavy File Control

48%

Rook/Queen battery rate

File Category

Flank Breakthrough

C-File Corridor

Signature Openings Triggering C-File Opening

Sicilian DefenseFrench DefenseQueen's Gambit

Associated Tactical Concepts

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