C50

Rousseau Gambit: Queenside Pivot

1. e4 e5 2. Nf3 Nc6 3. Bc4 f5 4. d4 exd4 5. e5 d5 6. exd6 Qxd6 7. O-O Nf6 8. Re1+ Be7

Opening moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 f5 4. d4 exd4 5. e5 d5 6. exd6 Qxd6 7. O-O Nf6 8. Re1+ Be7. This position is classified under ECO code C50.

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About This Opening

ECO Code

C50

Category Volume C

Opening Family

Rousseau Gambit

Position (FEN)

r1b1k2r/ppp1b1pp/2nq1n2/5p2/2Bp4/5N2/PPP2PPP/RNBQR1K1 w kq - 4 9

Lichess Stats

Across 10 rapid and classical games on Lichess (1600+ rated), White wins 60%, Black wins 30%, and 10% end in a draw from this position. The most common continuation is Ng5, played in 30% of games, followed by Na3 and Bb5.

Observation period: 2026-07.

Small sample: 10 games. These percentages are descriptive and are too uncertain to compare opening strength.

60%

10%

30%

White wins 60% Draws 10% Black wins 30%

10 rapid and classical games on Lichess (1600+)

Top Continuations

Ng5

Na3

Bb5

Nbd2

Qe2

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