Bird Opening

Chess opening · ECO A02 · 1 half-move

1. f4

The Bird Opening is reached after 1. f4. It is Black's move in the position shown.

How often it is played

The Bird Opening and its variations appeared in 1.1% of games — 33,476 of 3,000,000 rated games sampled from Lichess in September 2026. That makes it number 46 of the openings listed here.

Results

White won 49%, 3.7% were drawn and Black won 47%. These are games between players of every strength and time control, so they say how the opening does in practice rather than how sound it is.

What the engine thinks

Stockfish, at depth 18, evaluates the position at -0.33 — a small edge for Black. Positive numbers favour White; see reading the evaluation bar.

Similar openings

The most-played alternatives — what else could have been chosen around the move where this opening begins.

OpeningMovesShare of games
King's Pawn Game1. e459%
Queen's Pawn Game1. d426%
English Opening1. c43.0%

Main continuations

VariationMovesShare of games
Bird Opening: Dutch Variation1. f4 d50.41%
Bird Opening: From's Gambit1. f4 e50.11%
Bird Opening: Hobbs Gambit1. f4 g50.00%
Bird Opening: Double Duck Formation1. f4 f5 2. d4 d50.00%
Bird Opening: Wagner-Zwitersch Gambit1. f4 f5 2. e40.00%
Bird Opening: Horsefly Defense1. f4 Nh60.00%
Bird Opening: Mujannah1. f4 Nf6 2. c40.00%
Bird Opening: Myers Defense1. f4 b50.00%

Check your own games

Paste a game, or share one straight from lichess or chess.com, and Chess Analyzer names the opening, marks where the game left known theory and grades every move after it.

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