C21

Center Game: Halasz-McDonnell Gambit, Crocodile Variation

Chess diagram: Center Game: Halasz-McDonnell Gambit, Crocodile Variation after 5. c3

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Statistics from Lichess

4,360 games: White 44.9% / Draw 3.1% / Black 52.0%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
3,1803,180
373373
208208
167167
133133
110110
8282
5656

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 31, 2026

Engine evaluation

−1.44 Black is better

Best play: 5... d5 6. e5 Bg4 7. b4 Bb6 8. b5 Nce7 9. h3 Bxf3 10. Qxf3

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

Overview

Center Game: Halasz-McDonnell Gambit, Crocodile Variation (ECO C21, Open Games) is a gambit in the Center Game: Halasz-McDonnell Gambit, reached after 1. e4 e5 2. d4 exd4 3. f4 Bc5 4. Nf3 Nc6 5. c3 (5 moves).

In 4,360 rated Lichess games between players rated 1600 to 2500, White won 44.9%, Black 52.0% and 3.1% were drawn. Black's most played move here is 5…dxc3, in 73% of those games.

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How to play against the Center Game: Halasz-McDonnell Gambit, Crocodile Variation

The most played answer, 5…dxc3, also scores best for Black: 54.0%, with Black winning 52.4% and White 44.3% of 3,180 games. Of the main answers, 5…d6 scores lowest: 49.2%. Stockfish's first choice is 5…d5.

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. “Center Game: Halasz-McDonnell Gambit, Crocodile Variation (C21)”. Lichess data as of 31 Oct 2026. https://chesscodex.org/openings/center-game-halasz-mcdonnell-gambit-crocodile-variation