All ECO Codes
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C23
C23
Bishop's Opening
Four Pawns' Gambit
1.e4 e5 2.Bc4 Bc5 3.b4 Bxb4 4.f4 exf4 5.Nf3 Be7 6.d4 Bh4 7.g3 fxg3 8.O-O gxh2 9.Kh1