B20

Sicilian Defense: Euwe Attack, Prins Gambit

Chess diagram: Sicilian Defense: Euwe Attack, Prins Gambit after 3. Bb2

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Statistics from Lichess

28,523 games: White 46.2% / Draw 4.5% / Black 49.3%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
13,08913K
12,11612K
2,0532,053
751751
378378
5151
1818
1717

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 1, 2026

Engine evaluation

−0.16 The position is about equal

Best play: 3... dxe4 4. Nc3 Nf6 5. Bb5+ Nbd7 6. Qe2 a6 7. Bxd7+ Bxd7 8. f3

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

Overview

Sicilian Defense: Euwe Attack, Prins Gambit (ECO B20, Semi-Open Games) is a gambit in the Sicilian Defense: Czerniak Attack, reached after 1. e4 c5 2. b3 d5 3. Bb2 (3 moves).

In 28,523 rated Lichess games between players rated 1600 to 2500, White won 46.2%, Black 49.3% and 4.5% were drawn. Black's most played move here is 3…d4, in 46% of those games.

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How to play against the Sicilian Defense: Euwe Attack, Prins Gambit

The most played answer, 3…d4, also scores best for Black: 52.1%, with Black winning 50.0% and White 45.7% of 13K games. Of the main answers, 3…Nc6 scores lowest: 47.1%. Stockfish's first choice is 3…dxe4.

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. “Sicilian Defense: Euwe Attack, Prins Gambit (B20)”. Lichess data as of 1 Nov 2026. https://chesscodex.org/openings/sicilian-defense-euwe-attack-prins-gambit