E27

Nimzo-Indian Defense: Sämisch Variation 5. bxc3 O-O

Chess diagram: Nimzo-Indian Defense: Sämisch Variation after 5…O-O

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.

Play any move on the board to explore from there, or step through the line with ‹ › and the arrow keys.

Statistics from Lichess

289,937 games: White 48.2% / Draw 4.8% / Black 47.0%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
74,41474K
62,77363K
48,65449K
38,65339K
Nimzo-Indian Defense: Sämisch Variation 36,33836K
6,4196,419
6,3136,313
3,3543,354

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 30, 2026

Engine evaluation

+0.26 The position is about equal

Best play: 6. f3 d5 7. cxd5 exd5 8. e3 Bf5 9. Ne2 Nc6 10. Ra2 h5

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 worse this line does for Black: Black scores 49% under 1400, 46% at 2200 and up (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 35K
1400–1799 182K
1800–2199 148K
2200 and up 31K
Masters, over the board 259

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

Nimzo-Indian Defense: Sämisch Variation (ECO E27, Indian Defenses) is a variation of the Nimzo-Indian Defense: Sämisch Variation, reached after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O (5 moves).

In 289,937 rated Lichess games between players rated 1600 to 2500, White won 48.2%, Black 47.0% and 4.8% were drawn. White's most played move here is 6. Nf3, in 26% of those games.

Written from the Lichess opening list and explorer. Know this line well? Write about it.

Write a description or report a mistake
What would you like to send?

Markdown supported (headings ###, bold, lists, links). Submissions are reviewed before publishing.

How to answer 5…O-O

6. f3 scores best for White: 55.6%, with White winning 53.2% and Black 42.0% of 49K games. The most played answer, 6. Nf3, scores lowest: 48.8% in 74K games. Stockfish's first choice is also 6. f3.

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

This line has lost ground since 2016: 0.0091% of Lichess games in 2025, down from 0.014% (its peak: 0.016% in 2018).

Numbers by year
YearShare of gamesGames
20160.014%4,877
20170.014%7,655
20180.016%12,189
20190.014%16,954
20200.013%37,617
20210.011%44,087
20220.012%43,632
20230.011%40,902
20240.01%36,198
20250.0091%31,571
2026 (Jan–Apr)0.0088%9,601

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

Transpositions

Cite this page

Caissa Codex. “Nimzo-Indian Defense: Sämisch Variation (E27)”. Lichess data as of 30 Oct 2026. https://chesscodex.org/openings/nimzo-indian-defense-samisch-variation-2