Tree path 4 levels Queen's Pawn Game › Benoni Defense: Old Benoni › Benoni Defense: Old Benoni › Mujannah Formation
- Chess Codex
- Queen's Pawn Game A40
- Benoni Defense: Old Benoni A43
- Benoni Defense: Old Benoni A43
- Mujannah Formation A43 you are here
Benoni Defense: Old Benoni, Mujannah Formation
Overview
Benoni Defense: Old Benoni, Mujannah Formation is a named branch in the Flank Openings group of chess theory, classified under ECO A43.
The Flank Openings group covers flank openings — systems that delay the central pawn break and instead develop pieces and pawns on the wings.
It begins with 4 plies and takes 1. d4 c5 2. d5 f5 to reach the canonical position.
In the opening tree, this line branches off from Benoni Defense: Old Benoni, part of the broader Queen's Pawn Game system.
It continues primarily into one named line, Benoni Defense: Benoni-Staunton Gambit.
Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.
- ECO code
- A43
- Group
- Flank Openings (A)
- Plies
- 4
- Parent
- Benoni Defense: Old Benoni
- Direct variations
- 1
This overview is generated automatically from the opening's metadata. Know this line well? Write a description — submissions are reviewed before publishing.
Statistics from Lichess
112,811 games · White 47.8% / Draw 5.0% / Black 47.2%
| Moves | Games | W / D / B |
|---|---|---|
| c4 | 67,165 | |
| Nc3 | 17,628 | |
| e4 | 8,687 | |
| Nf3 | 5,548 | |
| g3 | 3,201 | |
| Bg5 | 2,302 | |
| g4 | 2,295 | |
| Bf4 | 2,080 |
Source: Lichess Opening Explorer · cached 2026-09-26 00:56:09
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