Tree path 5 levels Queen's Pawn Game › Indian Defense › Knights Variation › Pseudo Queen's Indian Defense › Marienbad System
- Caissa Codex
- Queen's Pawn Game A40
- Indian Defense A45
- Knights Variation A46
- Pseudo Queen's Indian Defense A47
- Marienbad System A47 you are here
Marienbad System
Overview
Marienbad System is a specific line in the Flank Openings family (ECO A47), arising from a recognised theoretical position.
The Flank Openings group covers flank openings — systems that delay the central pawn break and instead develop pieces and pawns on the wings.
The line arises from 8 plies — specifically the moves 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5.
The line refines Pseudo Queen's Indian Defense, which traces back to the root opening Queen's Pawn Game.
It continues primarily into one named line, Berg Variation.
Explore the position on the interactive board, study its real-world results from Lichess, and challenge the engine when you are ready.
- ECO code
- A47
- Group
- Flank Openings (A)
- Plies
- 8
- 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
20,333 games · White 45.2% / Draw 7.8% / Black 47.0%
| Moves | Games | W / D / B |
|---|---|---|
| O-O | 12,472 | |
| dxc5 | 3,351 | |
| c3 | 2,345 | |
| c4 | 1,131 | |
| e3 | 655 | |
| d5 | 85 | |
| b3 | 73 | |
| Nh4 | 56 |
Source: Lichess Opening Explorer · cached 2026-09-26 01:45:04
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