A00

Ware Opening

Also known as Meadow Hay Opening

Chess diagram: Ware Opening after 1. a4

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

991,354 games: White 45.5% / Draw 4.6% / Black 49.9%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
320,827321K
257,358257K
88,98889K
66,64967K
57,81558K
52,51853K
Symmetric Variation 30,56631K
28,89929K

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 1, 2026

Engine evaluation

−0.19 The position is about equal

Best play: 1... Nf6 2. d4 e6 3. Nf3 c5 4. e3 Nc6 5. Be2 Be7 6. c4

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

By rating

The stronger the players, the better this line does for White: White scores 43% under 1400, 53% at 2200 and up (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 1.9M
1400–1799 1.2M
1800–2199 442K
2200 and up 56K
Masters, over the board 29

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

Ware Opening (ECO A00, Flank Openings) is a chess opening that starts 1. a4.

In 991,354 rated Lichess games between players rated 1600 to 2500, White won 45.5%, Black 49.9% and 4.6% were drawn. Black's most played move here is 1…e5, in 32% of those games.

It branches into 6 named variations; the most played are Ware Opening: Crab Variation and Ware Opening: Symmetric Variation.

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How to play against the Ware Opening

1…Nf6 scores best for Black: 53.2%, with Black winning 50.9% and White 44.5% of 89K games. The most played, 1…e5, scores 53.1% in 321K games, and 1…e6 scores lowest: 50.6%. Stockfish's first choice is also 1…Nf6.

Main answers: those played in at least 5% of these games. Score: Black'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 Ware Opening peaked in 2018 at 0.046% of Lichess games and has slipped since: 0.038% in 2025.

Numbers by year
YearShare of gamesGames
20160.04%14,133
20170.04%21,963
20180.046%35,887
20190.042%52,740
20200.034%99,487
20210.04%155,015
20220.038%143,924
20230.036%137,032
20240.04%143,463
20250.038%130,876
2026 (Jan–Apr)0.038%41,710

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

Variations (6)

Cite this page

Caissa Codex. “Ware Opening (A00)”. Lichess data as of 1 Nov 2026. https://chesscodex.org/openings/ware-opening