Polish Opening, with d5 (1. b4 d5)

1. b4 d5

Polish Opening, with d5 after 1. b4 d5 87654321abcdefgh

The Polish Opening, with d5 is a chess opening classified as ECO A00, reached after 1. b4 d5. White is to move. 5 named lines continue from this position.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 12,453 times by this move order. White won 51%, 4% were drawn and Black won 45%. The most popular continuation is 2. Bb2 (87% of games).

Engine evaluation: −0.08 (Stockfish, depth 50; best line 2. Bb2 Nf6 3. Nf3 e5 4. Nxe5 Bxb4)

ECO
A00
Moves
2 plies
FEN
rnbqkbnr/ppp1pppp/8/3p4/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - 0 2
PGN
1. b4 d5

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

Results by rating

Average ratingGamesWhite / draw / Black
0-14994,44451%45%
1500-19997,11551%45%
2000+89451%43%
All12,45351%45%

Most played moves

MoveGamesWhite / draw / Black
2. Bb210,824 (87%)52%44%
2. b5535 (4%)46%50%
2. a3217 (2%)47%48%
2. e3216 (2%)56%40%
2. Nf3
Santasiere's Folly
114 (1%)43%52%
2. c3109 (1%)40%12%48%
2. d498 (1%)38%57%
2. a474 (1%)41%54%

Master games

548 over-the-board games are classified under this line (White 42%, draw 18%, Black 40%). The strongest:

Search all games of the Polish Opening, with d5 and its sub-variations

Highest-rated Lichess games

Comes from

Polish Opening 1. b4

Continuations

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.