Polish Opening: Dutch Defense

1. b4 f5

The Polish Opening: Dutch Defense is a chess opening classified as ECO A00, reached after 1. b4 f5. 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 609 times by this move order. White won 50%, 5% were drawn and Black won 45%. The most popular continuation is 2. Bb2 (88% of games).

Engine evaluation: +0.32 (Stockfish, depth 48; best line 2. Nf3 d6 3. d4 a5 4. b5 Nd7)

ECO: A00
Moves: 2 plies
FEN: rnbqkbnr/ppppp1pp/8/5p2/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - 0 2
PGN: 1. b4 f5

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

Results by rating

Average rating	Games	White / draw / Black
0-1499	162	51%43%
1500-1999	380	48%48%
2000+	67	61%31%
All	609	50%45%

Most played moves

Move	Games	White / draw / Black
2. Bb2	535 (88%)	50%45%
2. b5	23 (4%)	57%39%
2. e3	14 (2%)	57%43%
2. c4	7 (1%)	29%71%
2. a3	6 (1%)	67%33%
2. Nf3	4 (1%)	50%50%
2. d4	4 (1%)	75%25%
2. e4	4 (1%)	25%50%25%

Master games

44 over-the-board games are classified under this line (White 39%, draw 13%, Black 48%). The strongest:

GM Olexandr Bortnyk (2605) – IM Meri Arabidze (2441) 1-0 · Titled Tue 30th May Early · 2023-05-30
GM Murali Karthikeyan (2647) – IM Alexandros Papasimakopoulos (2339) 1-0 · Titled Tue 15th Sep 2026 · 2026-09-15
IM Mark Timmermans (2385) – IM Anatole Vlachos (2438) 1-0 · Titled Tuesday 20th Apr · 2021-04-20
GM Vojtech Plat (2477) – Avadhoot Lokesh Bhakti Brahme (2202) 1-0 · 4NCL Easter IM 2026 · 2026-04-02
IM Sven Telljohann (2407) – FM Reiner Heimrath (2231) 1-0 · 88th ch-GER 2017 · 2017-06-23

Search all games of the Polish Opening: Dutch Defense and its sub-variations

Highest-rated Lichess games

Fraysinator (2685) – Ellery1729 (2538) 1-0 · 2026-09-02 · 180 + 0s
DragonsWarrior2080 (2363) – Jessy1967 (2376) 1-0 · 2026-09-07 · 300 + 0s
jHonor (2308) – nemogcster (2298) 1-0 · 2026-09-05 · 300 + 0s

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.