Caissa Codex
B06

Modern Defense: Masur Gambit

Chess diagram: Modern Defense: Masur Gambit after 5…O-O

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Statistics from Lichess

93 games: White 62.4% / Draw 2.2% / Black 35.5%

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Next moveGamesWhite / Draw / BlackW / D / B
8080
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44

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

Engine evaluation

+2.89 White is clearly better

Best play: 6. Bd3 Kg7 7. fxg6 hxg6 8. Qg4 Qe8 9. Nge2 d6 10. Qg3 Qf7

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

Overview

Modern Defense: Masur Gambit (ECO B06, Semi-Open Games) is a gambit in the Modern Defense, reached after 1. e4 g6 2. d4 Nh6 3. Nc3 f5 4. Bxh6 Bxh6 5. exf5 O-O (5 moves).

In 93 rated Lichess games between players rated 1600 to 2500, White won 62.4%, Black 35.5% and 2.2% were drawn. White's most played move here is 6. fxg6, in 86% of those games. That is too few games for the percentages to mean much.

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Other lines from the same position

Instead of 2. d4 Nh6 3. Nc3 f5 4. Bxh6 Bxh6 5. exf5 O-O, the position after Modern Defense also goes on to:

Cite this page

Caissa Codex. “Modern Defense: Masur Gambit (B06)”. Lichess data as of 30 Oct 2026. https://chesscodex.org/openings/modern-defense-masur-gambit

https://chesscodex.org/openings/modern-defense-masur-gambit