ECO C20 · Bongcloud Attack

Bongcloud Attack

1. e4 e5 2. Ke2

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Black to move. The arrow shows Stockfish’s best move.
Best move

2… Nf6−1.33

Black is clearly better. Stockfish 18, depth 18.

Analyze this position

In the Bongcloud Attack (C20), reached after 1. e4 e5 2. Ke2, Stockfish 18 recommends 2… Nf6 for Black. Black is clearly better (−1.33).

Top engine moves

  1. −1.332… Nf6 3. d3 d5 4. exd5 Bc5 5. Ke1 O-O 6. Nc3 Nxd5 7. Nxd5
  2. −1.272… Bc5 3. Ke1 d5 4. exd5 Nf6 5. d3 O-O 6. Nc3 Nxd5 7. Nxd5
  3. −1.252… d5 3. d3 Bc5 4. Ke1 Nf6 5. Nd2 O-O 6. h3 a5 7. Ngf3

All Bongcloud Attack variations (0)

    Frequently asked questions

    What is the best move in the Bongcloud Attack?
    After 1. e4 e5 2. Ke2, Stockfish 18 at depth 18 recommends 2… Nf6 for Black, continuing 3. d3 d5 4. exd5 Bc5 5. Ke1 O-O 6. Nc3 Nxd5 7. Nxd5. Black is clearly better (−1.33). The next best moves are 2… Bc5 (−1.27) and 2… d5 (−1.25).
    Is the Bongcloud Attack a good opening?
    Stockfish rates the position at −1.33: black is clearly better. Evaluations this early in the game are small, so practical results depend far more on knowing the plans and typical structures than on the engine's number.
    What is the ECO code of the Bongcloud Attack?
    C20. 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+).