A05

King's Indian Attack: Symmetrical Defense

Chess diagram: King's Indian Attack: Symmetrical Defense after 2…g6

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

2,636,315 games: White 49.6% / Draw 7.1% / Black 43.3%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
2,350,9972.4M
162,047162K
Indian Defense: Przepiorka Variation 29,61830K
28,94629K
King's Indian Attack: Smyslov Variation 27,22927K
26,44326K
4,5154,515
1,9551,955

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 9, 2026

Engine evaluation

+0.14 The position is about equal

Best play: 3. Bg2 Bg7 4. c4 c6 5. O-O O-O 6. b3 Ne4 7. d4 a5

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 48% under 1400, 46% at 2200 and up and 43% in master games (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 186K
1400–1799 478K
1800–2199 1.4M
2200 and up 891K
Masters, over the board 15K

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 26, 2026

Overview

King's Indian Attack: Symmetrical Defense (ECO A05, Flank Openings) is a variation of the Zukertort Opening, reached after 1. Nf3 Nf6 2. g3 g6 (2 moves).

In 2,636,315 rated Lichess games between players rated 1600 to 2500, White won 49.6%, Black 43.3% and 7.1% were drawn. White's most played move here is 3. Bg2, in 89% of those games.

It branches into 3 named variations; the most played are King's Indian Attack: Wahls Defense and Zukertort Opening: Double Fianchetto Attack.

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How to play against the King's Indian Attack: Symmetrical Defense

3. b3 scores best for White: 56.8%, with White winning 52.4% and Black 38.9% of 162K games. The most played answer, 3. Bg2, scores lowest: 52.9% in 2.4M games. Stockfish's first choice is 3. Bg2.

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 King's Indian Attack: Symmetrical Defense peaked in 2018 at 0.13% of Lichess games and has slipped since: 0.1% in 2025.

Numbers by year
YearShare of gamesGames
20160.095%34,078
20170.12%63,629
20180.13%103,639
20190.12%155,210
20200.12%362,023
20210.096%374,734
20220.093%348,176
20230.094%353,967
20240.094%338,192
20250.1%345,665
2026 (Jan–Apr)0.1%114,631

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 (3)

Transpositions

Cite this page

Caissa Codex. “King's Indian Attack: Symmetrical Defense (A05)”. Lichess data as of 9 Nov 2026. https://chesscodex.org/openings/kings-indian-attack-symmetrical-defense