B00

St. George Defense: Polish Variation

Chess diagram: St. George Defense: Polish Variation after 4…e6

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

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Statistics from Lichess

316,064 games: White 50.5% / Draw 4.2% / Black 45.4%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
189,795190K
27,10527K
24,36324K
14,03314K
12,67913K
11,26311K
6,8726,872
6,5766,576

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 6, 2026

Engine evaluation

+0.91 White is better

Best play: 5. O-O c5 6. c3 Nf6 7. e5 Nd5 8. dxc5 Bxc5 9. a4 Nc6

Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.

By rating

Rating changes little here: Black scores 47% both under 1400 and at 2200 and up (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 30K
1400–1799 168K
1800–2199 180K
2200 and up 28K
Masters, over the board 199

Master games

Rated blitz, rapid and classical Lichess games by rating band, and over-the-board games of players rated 2200+ from the Lichess masters database, updated Sep 27, 2026

Overview

St. George Defense: Polish Variation (ECO B00, Semi-Open Games) is a variation of the St. George Defense, reached after 1. e4 a6 2. d4 b5 3. Nf3 Bb7 4. Bd3 e6 (4 moves).

In 316,064 rated Lichess games between players rated 1600 to 2500, White won 50.5%, Black 45.4% and 4.2% were drawn. White's most played move here is 5. O-O, in 60% of those games.

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How to play against the St. George Defense: Polish Variation

The most played answer, 5. O-O, also scores best for White: 53.3%, with White winning 51.2% and Black 44.6% of 190K games. Of the main answers, 5. Be3 scores lowest: 51.4%. Stockfish's first choice is also 5. O-O.

Main answers: those played in at least 5% of these games. Score: White's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings

Popularity by year

The St. George Defense: Polish Variation has lost ground since 2016: 0.011% of Lichess games in 2025, down from 0.016% (its peak: 0.02% in 2017).

Numbers by year
YearShare of gamesGames
20160.016%5,872
20170.02%10,789
20180.019%14,780
20190.017%20,936
20200.013%38,054
20210.011%43,995
20220.011%42,163
20230.011%43,048
20240.011%39,660
20250.011%38,980
2026 (Jan–Apr)0.011%11,578

Share of rated Lichess games between players rated 1600 to 2500 (blitz, rapid and classical) that reach this position, by year; 2026: January to April. Which openings are rising and falling

Cite this page

Caissa Codex. “St. George Defense: Polish Variation (B00)”. Lichess data as of 6 Nov 2026. https://chesscodex.org/openings/st-george-defense-polish-variation