Bird Opening: Thomas Gambit

1. f4 d5 2. b3 Nf6 3. Bb2 d4 4. Nf3 c5 5. e3

Bird Opening: Thomas Gambit after 1. f4 d5 2. b3 Nf6 3. Bb2 d4 4. Nf3 c5 5. e3 87654321abcdefgh

The Bird Opening: Thomas Gambit is a chess opening classified as ECO A03, reached after 1. f4 d5 2. b3 Nf6 3. Bb2 d4 4. Nf3 c5 5. e3. It is a line of the Bird Opening. Black is to move.

This exact move order didn't appear in our sample of 12.6 million Lichess games: it's a rare line.

Engine evaluation: +0.58 (Stockfish, depth 34; best line 5… Nc6 6. Bb5 Bd7 7. Qe2 e6 8. exd4)

ECO
A03
Moves
9 plies
FEN
rnbqkb1r/pp2pppp/5n2/2p5/3p1P2/1P2PN2/PBPP2PP/RN1QKB1R b KQkq - 0 5
PGN
1. f4 d5 2. b3 Nf6 3. Bb2 d4 4. Nf3 c5 5. e3

Analyse with Stockfish · Board image (SVG) · Open on Lichess

Comes from

Bird Opening: Dutch Variation 1. f4 d5

More Bird Opening lines (all)

Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.