D90

Grünfeld Defense: Three Knights Variation

Chess diagram: Grünfeld Defense: Three Knights Variation after 4. Nf3

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

1,869,049 games: White 48.0% / Draw 6.3% / Black 45.7%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
1,730,2301.7M
Slav Defense: Schlechter Variation 57,92958K
43,02343K
11,52112K
10,85611K
6,1616,161
2,9982,998
1,7231,723

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 29, 2026

Engine evaluation

+0.20 The position is about equal

Best play: 4... Bg7 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. Be3 Qa5 9. Qd2

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

By rating

Rating changes little here: White scores 51% under 1400, 53% at 2200 and up and 54% in master games (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 85K
1400–1799 523K
1800–2199 1.1M
2200 and up 363K
Masters, over the board 13K

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

Grünfeld Defense: Three Knights Variation (ECO D90, Closed & Semi-Closed Games) is a variation of the Grünfeld Defense, reached after 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 (4 moves).

In 1,869,049 rated Lichess games between players rated 1600 to 2500, White won 48.0%, Black 45.7% and 6.3% were drawn. Black's most played move here is 4…Bg7, in 93% of those games.

It continues into one named variation. In all, 22 named lines continue from it.

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Popularity by year

The Grünfeld Defense: Three Knights Variation has lost ground since 2016: 0.064% of Lichess games in 2025, down from 0.077% (its peak: 0.097% in 2018).

Numbers by year
YearShare of gamesGames
20160.077%27,582
20170.085%46,527
20180.097%75,937
20190.09%111,700
20200.084%245,167
20210.075%291,629
20220.072%270,557
20230.067%252,672
20240.063%226,697
20250.064%220,353
2026 (Jan–Apr)0.064%69,845

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 (1)

Transpositions

All 22 named lines that continue from here

Cite this page

Caissa Codex. “Grünfeld Defense: Three Knights Variation (D90)”. Lichess data as of 29 Oct 2026. https://chesscodex.org/openings/grunfeld-defense-three-knights-variation