A47

Marienbad System: Berg Variation

Chess diagram: Marienbad System: Berg Variation after 6. Qxd4

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

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Statistics from Lichess

2,198 games: White 45.7% / Draw 7.3% / Black 47.0%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
1,0151,015
590590
391391
177177
88
88
33
22

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 3, 2026

Engine evaluation

+0.10 The position is about equal

Best play: 6... Nc6 7. Qd1 Ne5 8. b3 Nxf3+ 9. Bxf3 Bxf3 10. exf3 e6 11. O-O

Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.

Overview

Marienbad System: Berg Variation (ECO A47, Flank Openings) is a variation of the Marienbad System, reached after 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. c4 cxd4 6. Qxd4 (6 moves).

In 2,198 rated Lichess games between players rated 1600 to 2500, White won 45.7%, Black 47.0% and 7.3% were drawn. Black's most played move here is 6…Nc6, in 46% of those games.

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How to play against the Marienbad System: Berg Variation

6…e6 scores best for Black: 53.0%, with Black winning 49.5% and White 43.6% of 590 games. The most played answer, 6…Nc6, scores lowest: 48.5% in 1,015 games. Stockfish's first choice is 6…Nc6.

Main answers: those played in at least 5% of these games. Score: Black's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings

Cite this page

Caissa Codex. “Marienbad System: Berg Variation (A47)”. Lichess data as of 3 Nov 2026. https://chesscodex.org/openings/marienbad-system-berg-variation