Polish Opening: Symmetrical Variation

1. b4 b5

Polish Opening: Symmetrical Variation after 1. b4 b5 87654321abcdefgh

The Polish Opening: Symmetrical Variation is a chess opening classified as ECO A00, reached after 1. b4 b5. It is a line of the Polish Opening. White is to move.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 691 times by this move order. White won 53%, 6% were drawn and Black won 41%. The most popular continuation is 2. Bb2 (68% of games).

Engine evaluation: +0.08 (Stockfish, depth 46; best line 2. a4 e6 3. c3 bxa4 4. Rxa4 Be7)

ECO
A00
Moves
2 plies
FEN
rnbqkbnr/p1pppppp/8/1p6/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - 0 2
PGN
1. b4 b5

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

Results by rating

Average ratingGamesWhite / draw / Black
0-149935455%39%
1500-199931252%41%
2000+2544%52%
All69153%41%

Most played moves

MoveGamesWhite / draw / Black
2. Bb2468 (68%)56%39%
2. e357 (8%)47%49%
2. a437 (5%)46%49%
2. a319 (3%)58%32%
2. Nc319 (3%)32%58%
2. e418 (3%)44%12%44%
2. c317 (2%)59%12%29%
2. d411 (2%)36%19%45%

Master games

21 over-the-board games are classified under this line (White 52%, draw 5%, Black 43%). The strongest:

Search all games of the Polish Opening: Symmetrical Variation and its sub-variations

Highest-rated Lichess games

Comes from

Polish Opening 1. b4

More Polish 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.