ECO C40 · King's Pawn Game

King's Pawn Game: Gunderam Defense, Gunderam Gambit

1. e4 e5 2. Nf3 Qe7 3. Bc4 f5

abcdefgh87654321
White to move. The arrow shows Stockfish’s best move.
Best move

4. exf5+1.46

White is clearly better. Stockfish 18, depth 18.

Analyze this position

In the King's Pawn Game: Gunderam Defense, Gunderam Gambit (C40), reached after 1. e4 e5 2. Nf3 Qe7 3. Bc4 f5, Stockfish 18 recommends 4. exf5 for White. White is clearly better (+1.46).

Top engine moves

  1. +1.464. exf5 Nf6 5. O-O d6 6. d4 Bxf5 7. dxe5 dxe5 8. Re1 Nc6
  2. +1.374. d4 Nc6 5. O-O fxe4 6. Ng5 Nxd4 7. Bf7+ Kd8 8. c3 h6
  3. +1.374. Nc3 fxe4 5. Nxe4 c6 6. d4 d5 7. Bg5 Nf6 8. dxe5 dxe4

Frequently asked questions

What is the best move in the King's Pawn Game: Gunderam Defense, Gunderam Gambit?
After 1. e4 e5 2. Nf3 Qe7 3. Bc4 f5, Stockfish 18 at depth 18 recommends 4. exf5 for White, continuing Nf6 5. O-O d6 6. d4 Bxf5 7. dxe5 dxe5 8. Re1 Nc6. White is clearly better (+1.46). The next best moves are 4. d4 (+1.37) and 4. Nc3 (+1.37).
Is the King's Pawn Game: Gunderam Defense, Gunderam Gambit a good opening?
Stockfish rates the position at +1.46: White is clearly better. That is a large edge for an opening position, so check the engine lines before playing it from the other side.
What is the ECO code of the King's Pawn Game: Gunderam Defense, Gunderam Gambit?
C40. ECO codes classify chess openings from A00 to E99; C is the volume for open games and the French Defense.

Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).