A12

Réti Opening: Anglo-Slav Variation, New York System

Chess diagram: Réti Opening: Anglo-Slav Variation, New York System after 4…Bf5

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

71,140 games: White 48.2% / Draw 7.3% / Black 44.6%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
36,11136K
19,10119K
10,51011K
1,3381,338
1,1881,188
963963
724724
563563

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 7, 2026

Engine evaluation

+0.20 The position is about equal

Best play: 5. Nh4 Bg6 6. Nxg6 hxg6 7. g3 e5 8. Bxe5 d4 9. Bxf6 gxf6

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

Overview

Réti Opening: Anglo-Slav Variation, New York System (ECO A12, Flank Openings) is a variation of the Zukertort Opening, reached after 1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. Bb2 Bf5 (4 moves).

In 71,140 rated Lichess games between players rated 1600 to 2500, White won 48.2%, Black 44.6% and 7.3% were drawn. White's most played move here is 5. g3, in 51% of those games.

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How to play against the Réti Opening: Anglo-Slav Variation, New York System

The most played answer, 5. g3, also scores best for White: 52.4%, with White winning 48.7% and Black 43.8% of 36K games. Of the main answers, 5. e3 scores lowest: 50.8%. Stockfish's first choice is 5. Nh4.

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

Transpositions

Cite this page

Caissa Codex. “Réti Opening: Anglo-Slav Variation, New York System (A12)”. Lichess data as of 7 Nov 2026. https://chesscodex.org/openings/reti-opening-anglo-slav-variation-new-york-system