E26

Nimzo-Indian Defense: Sämisch Variation, O'Kelly Variation

Chess diagram: Nimzo-Indian Defense: Sämisch Variation, O'Kelly Variation after 6…b6

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

14,031 games: White 46.0% / Draw 5.1% / Black 49.0%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
7,7417,741
3,8443,844
527527
414414
294294
255255
237237
186186

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

Engine evaluation

0.00 The position is about equal

Best play: 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8 11. O-O Rc8

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

Overview

Nimzo-Indian Defense: Sämisch Variation, O'Kelly Variation (ECO E26, 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 c5 6. e3 b6 (6 moves).

In 14,031 rated Lichess games between players rated 1600 to 2500, White won 46.0%, Black 49.0% and 5.1% were drawn. White's most played move here is 7. Bd3, in 55% of those games.

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How to play against the Nimzo-Indian Defense: Sämisch Variation, O'Kelly Variation

The most played answer, 7. Bd3, also scores best for White: 52.8%, with White winning 50.4% and Black 44.7% of 7,741 games. Of the main answers, 7. Nf3 scores lowest: 42.6%. Stockfish's first choice is also 7. Bd3.

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

Cite this page

Caissa Codex. “Nimzo-Indian Defense: Sämisch Variation, O'Kelly Variation (E26)”. Lichess data as of 1 Nov 2026. https://chesscodex.org/openings/nimzo-indian-defense-samisch-variation-okelly-variation