C50

Rousseau Gambit: Iron King

1. e4 e5 2. Nf3 Nc6 3. Bc4 f5 4. exf5 e4 5. Ng1 d5 6. Qh5+ Ke7 7. Bb3 Nf6 8. Qg5 h6

Opening moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 f5 4. exf5 e4 5. Ng1 d5 6. Qh5+ Ke7 7. Bb3 Nf6 8. Qg5 h6. 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)

r1bq1b1r/ppp1k1p1/2n2n1p/3p1PQ1/4p3/1B6/PPPP1PPP/RNB1K1NR w KQ - 0 9

Lichess Stats

Across 5 rapid and classical games on Lichess (1600+ rated), White wins 20%, Black wins 40%, and 40% end in a draw from this position. The most common continuation is Qf4, played in 60% of games, followed by Qg6.

Observation period: 2026-07.

Small sample: 5 games. These percentages are descriptive and are too uncertain to compare opening strength.

20%

40%

White wins 20% Draws 40% Black wins 40%

5 rapid and classical games on Lichess (1600+)

Top Continuations

Qf4

Qg6

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