Library/Openings/King's Gambit Accepted/Kieseritzky Gambit/Cotter Gambit ECO C39
Opening· 11 plies

King's Gambit Accepted: Kieseritzky Gambit, Cotter Gambit

An entry in the Encyclopedia of Chess Openings (ECO C39), reached after 11 half-moves: 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7.

King's Gambit Accepted: Kieseritzky Gambit, Cotter Gambit ECO C39
87654321
abcdefgh
Black rook
Black knight
Black bishop
Black queen
Black king
Black bishop
Black knight
Black rook
Black pawn
Black pawn
Black pawn
Black pawn
White knight
Black pawn
White pawn
Black pawn
Black pawn
White pawn
White pawn
White pawn
White pawn
White pawn
White pawn
White rook
White knight
White bishop
White queen
White king
White bishop
White rook
11/11
  1. 1.
  3. 2.
  5. 3.
  7. 4.
  9. 5.
  11. 6.
Use ← → arrows or click moves to step through.

End of this line

No further variations branch from this position in our database. To explore neighbouring ideas:

About this opening

King's Gambit Accepted: Kieseritzky Gambit, Cotter Gambit is an opening in the Encyclopedia of Chess Openings, classified under code C39. 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 11 half-moves from the starting position, with the move sequence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7.

It belongs to the King's Gambit Accepted family. Within that family this is a level-2 branch (the Kieseritzky Gambit → Cotter Gambit line). The immediate parent line is King's Gambit Accepted: Kieseritzky Gambit, transitioned via 6.Nxf7.

The opening sequence in prose form: 1.e4 e5, 2.f4 exf4, 3.Nf3 g5, 4.h4 g4, 5.Ng5 h6, 6.Nxf7. 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.