C50

Rousseau Gambit: Pin Clamp

1. e4 e5 2. Nf3 Nc6 3. Bc4 f5 4. d3 Bc5 5. Nc3 f4 6. O-O d6 7. a3 Bg4

Opening moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 f5 4. d3 Bc5 5. Nc3 f4 6. O-O d6 7. a3 Bg4. 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)

r2qk1nr/ppp3pp/2np4/2b1p3/2B1Ppb1/P1NP1N2/1PP2PPP/R1BQ1RK1 w kq - 1 8

Lichess Stats

Across 7 rapid and classical games on Lichess (1600+ rated), White wins 29%, Black wins 71%, and 0% end in a draw from this position. The most common continuation is h3, played in 29% of games, followed by Bb5 and Na4.

Observation period: 2026-07.

Small sample: 7 games. These percentages are descriptive and are too uncertain to compare opening strength.

29%

71%

White wins 29% Draws 0% Black wins 71%

7 rapid and classical games on Lichess (1600+)

Top Continuations

Bb5

Na4

Nd5

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