ECO B00 · Nimzowitsch Defense

Nimzowitsch Defense: Colorado Countergambit

1. e4 Nc6 2. Nf3 f5

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

3. exf5+1.10

White is clearly better. Stockfish 18, depth 18.

Analyze this position

In the Nimzowitsch Defense: Colorado Countergambit (B00), reached after 1. e4 Nc6 2. Nf3 f5, Stockfish 18 recommends 3. exf5 for White. White is clearly better (+1.10).

Top engine moves

  1. +1.103. exf5 d5 4. Bb5 Bxf5 5. d4 Bg4 6. h3 Bxf3 7. Qxf3 Nf6
  2. +0.563. e5 d6 4. exd6 cxd6 5. d4 e5 6. dxe5 dxe5 7. Qxd8+ Kxd8
  3. +0.293. Nc3 fxe4 4. Nxe4 Nf6 5. Neg5 e5 6. d4 exd4 7. Nxd4 h6

Frequently asked questions

What is the best move in the Nimzowitsch Defense: Colorado Countergambit?
After 1. e4 Nc6 2. Nf3 f5, Stockfish 18 at depth 18 recommends 3. exf5 for White, continuing d5 4. Bb5 Bxf5 5. d4 Bg4 6. h3 Bxf3 7. Qxf3 Nf6. White is clearly better (+1.10). The next best moves are 3. e5 (+0.56) and 3. Nc3 (+0.29).
Is the Nimzowitsch Defense: Colorado Countergambit a good opening?
Stockfish rates the position at +1.10: white 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 Nimzowitsch Defense: Colorado Countergambit?
B00. ECO codes classify chess openings from A00 to E99; B is the volume for semi-open games (other than the French).

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