A56

Benoni Defense

The Benoni Defense (1.d4 Nf6 2.c4 c5) is the most common way to reach the Benoni family of openings. Read the guide

Chess diagram: Benoni Defense after 2…c5

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Statistics from Lichess

9,802,565 games: White 45.2% / Draw 5.6% / Black 49.2%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
6,579,3216.6M
English Opening: Symmetrical Variation, Anti-Benoni Variation 1,121,9841.1M
896,930897K
832,616833K
296,912297K
28,04428K
22,88823K
11,40311K

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 5, 2026

Engine evaluation

+0.48 White is slightly better

Best play: 3. d5 b5 4. cxb5 a6 5. e3 axb5 6. Bxb5 Bb7 7. Nc3 Qa5

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 50% under 1400, 49% at 2200 and up and 43% in master games (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 271K
1400–1799 2M
1800–2199 6.2M
2200 and up 2.1M
Masters, over the board 38K

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

Description

The Benoni Defense (1.d4 Nf6 2.c4 c5) is the most common way to reach the Benoni family of openings. Black attacks White's d4-pawn at once; White usually answers 3.d5, gaining space.

Origins

The name comes from Aaron Reinganum's 1825 book Ben-Oni oder die Vertheidigungen gegen die Gambitzüge im Schache, which analysed defences to the King's and Queen's Gambits and the then unknown 1.d4 c5. Ben-Oni is a Hebrew name meaning "son of my sorrow"; Reinganum meant it as a nickname for his writings, not as the name of an opening. The original form, 1.d4 c5, is now called the Old Benoni.

The idea

After 3.d5 Black chooses the structure: ...e6 leads to the Modern Benoni, ...b5 sacrifices a pawn for a queenside attack, and ...e5 closes the centre.

Main lines

  • 3.d5, the main move:
  • 3.Nf3, the Anti-Benoni, avoiding the Benoni and often reaching a Symmetrical English.

Strengths and weaknesses

Strengths

  • An immediate challenge to White's centre.
  • Black chooses between several distinct structures: the Modern Benoni, the Benko and the Czech Benoni.

Weaknesses

  • After 3.d5 White gains space in the centre.
  • White can sidestep the Benoni altogether with 3.Nf3.

Who should play it

2...c5 suits Black players who want an unbalanced fight against 1.d4 and are happy with Benoni structures, whether sharp (Modern Benoni, Benko) or solid (Czech Benoni).

The numbers

On Lichess Black does very well between 1400 and 2200: 51.1% against 45.0% at 1400–1799 and 50.0% against 44.6% at 1800–2199. Under 1400 the results are level (48.5% against 48.3%), and from 2200 up White leads 47.4% against 45.3%. In about 37,700 master games White won 40.4%, Black 26.1%, and 33.5% were drawn.

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How to play against the Benoni Defense

3. Nf3 (English Opening: Symmetrical Variation, Anti-Benoni Variation) scores best for White: 49.8%, with White winning 46.5% and Black 46.9% of 1.1M games. The most played, 3. d5, scores 48.0% in 6.6M games, and 3. Nc3 scores lowest: 45.8%. Stockfish's first choice is 3. d5.

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 Benoni Defense has lost ground since 2016: 0.34% of Lichess games in 2025, down from 0.5% (its peak: 0.56% in 2018).

Numbers by year
YearShare of gamesGames
20160.5%177,361
20170.51%282,217
20180.56%442,158
20190.5%618,834
20200.44%1,276,735
20210.36%1,407,966
20220.36%1,334,939
20230.35%1,310,363
20240.34%1,215,533
20250.34%1,183,669
2026 (Jan–Apr)0.35%378,479

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 (7)

Transpositions

All 48 named lines that continue from here

Sources

Cite this page

Caissa Codex. “Benoni Defense (A56)”. Lichess data as of 5 Nov 2026. https://chesscodex.org/openings/benoni-defense