D49

Semi-Slav Defense: Meran Variation, Blumenfeld Variation

Chess diagram: Semi-Slav Defense: Meran Variation, Blumenfeld Variation after 11. Nxb5

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Statistics from Lichess

5,698 games: White 50.1% / Draw 7.1% / Black 42.8%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
4,5274,527
Semi-Slav Defense: Meran Variation, Sozin Variation 742742
Semi-Slav Defense: Meran Variation, Rabinovich Variation 247247
7979
7878
1212
66
44

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 30, 2026

Engine evaluation

+0.10 The position is about equal

Best play: 11... Bb4+ 12. Bd2 Bxd2+ 13. Qxd2 axb5 14. exf6 Qxf6 15. Bxb5 e5 16. O-O

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

Overview

Semi-Slav Defense: Meran Variation, Blumenfeld Variation (ECO D49, Closed & Semi-Closed Games) is a variation of the Semi-Slav Defense: Meran Variation, Old Variation, reached after 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 (11 moves).

In 5,698 rated Lichess games between players rated 1600 to 2500, White won 50.1%, Black 42.8% and 7.1% were drawn. Black's most played move here is 11…axb5, in 79% of those games.

It branches into 2 named variations; the most played are Semi-Slav Defense: Meran Variation, Rabinovich Variation and Semi-Slav Defense: Meran Variation, Stahlberg Variation.

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How to play against the Semi-Slav Defense: Meran Variation, Blumenfeld Variation

11…Nxe5 (Semi-Slav Defense: Meran Variation, Sozin Variation) scores best for Black: 51.5%, with Black winning 47.6% and White 44.5% of 742 games. The most played answer, 11…axb5, scores lowest: 45.7% in 4,527 games. Stockfish's first choice is 11…Bb4+.

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

Variations (2)

Transpositions

Cite this page

Caissa Codex. “Semi-Slav Defense: Meran Variation, Blumenfeld Variation (D49)”. Lichess data as of 30 Oct 2026. https://chesscodex.org/openings/semi-slav-defense-meran-variation-blumenfeld-variation