Chess opening
Catalan Opening: Open DefenseE03
The Catalan Opening: Open Defense is a chess opening classified under ECO code E03. It is reached after the moves:
1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4
Play it vs Stockfish Open in analysis board
Comes from
Main continuations
Related lines in the Catalan Opening
- Catalan Opening (E00)
- Catalan Opening (E00)
- Catalan Opening: Hungarian Gambit (E00)
- Catalan Opening: Closed (E01)
- Catalan Opening: Open Defense (E02)
- Catalan Opening: Open Defense, Alekhine Variation (E03)
- Catalan Opening: Open Defense (E04)
- Catalan Opening: Open Defense (E04)
Train this opening
LibreChess runs Stockfish in your browser — play the Catalan Opening against the engine at any strength, get hints, and review your game move by move afterwards. Free, no account needed. You can also add this line to your repertoire and drill it with spaced repetition.