About this opening
Bishop's Opening: Four Pawns Gambit is an opening in the Encyclopedia of Chess Openings,
classified under code C23. ECO group C (C00–C99)
covers open games (1.e4 e5) and the French Defence, including the Ruy Lopez, Italian, Scotch and King's Gambit. This particular variation is reached
after 17 half-moves from the
starting position, with the move sequence 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.
It belongs to the Bishop's Opening family. Within that family this is a sub-variation (the Four Pawns Gambit line).
The opening sequence in prose form: 1.e4 e5, 2.Bc4 Bc5, 3.b4 Bxb4, 4.f4 exf4, 5.Nf3 Be7, 6.d4 Bh4+. From this position the encyclopaedia records no further canonical continuations — practical play branches into unnamed transpositions or returns to the parent line for alternative ideas.