English Opening: Anglo-Indian Defense, Slav Formation
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Statistics from Lichess
19,921 games: White 51.1% / Draw 7.8% / Black 41.1%
| Next move | Games | White / Draw / BlackW / D / B |
|---|---|---|
| 15,93016K | ||
| 2,2942,294 | ||
| 675675 | ||
| 617617 | ||
| 279279 | ||
| 6262 | ||
| 1414 | ||
| 1313 |
Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 30, 2026
Engine evaluation
+0.26 The position is about equal
Best play: 4. b3 Bg7 5. Bb2 O-O 6. Bg2 d5 7. O-O Nbd7 8. d4 Ne4
Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.
Overview
English Opening: Anglo-Indian Defense, Slav Formation (ECO A15, Flank Openings) is a variation of the English Opening: Anglo-Indian Defense, King's Indian Formation, reached after 1. c4 Nf6 2. Nf3 g6 3. g3 c6 (3 moves).
In 19,921 rated Lichess games between players rated 1600 to 2500, White won 51.1%, Black 41.1% and 7.8% were drawn. White's most played move here is 4. Bg2, in 80% of those games.
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How to play against the English Opening: Anglo-Indian Defense, Slav Formation
4. b3 scores best for White: 58.5%, with White winning 54.5% and Black 37.5% of 2,294 games. The most played answer, 4. Bg2, scores lowest: 54.7% in 16K games. Stockfish's first choice is also 4. b3.
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
Cite this page
Caissa Codex. “English Opening: Anglo-Indian Defense, Slav Formation (A15)”. Lichess data as of 30 Oct 2026. https://chesscodex.org/openings/english-opening-anglo-indian-defense-slav-formation