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♟ Lichess♟ Chess.com♟ Stockfish 17

ochess — analysis

SLAV DEFENSE · ELO 1900+

1.d4d5

2.c4c6

3.Nf3Nf6

4.e3e6

( 4... Bf5? )

↳ Opponent mistake in 23% of games

Best reply: h3

e345%

Nc332%

g314%

▋

14.6M

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SF 17

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🔬 Lab · Nimzo-Indian Defense

▶ 4. e3 — Classical

4. Qc2

4. f3

3. Nc3

1.d4Nf62.c4e63.Nc3Bb44.e3

( 4. Qc2 — Modern System )

51%

Qc2

30%

13%

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📊 Analysis · vs FM Ivanov · Blitz

Lichess · Blitz · 2026-04-15 · White

1.e4c52.Nf3d63.d4cxd44.Nxd4Nf65.Nc3a66.Be2?

Theory deviation

Unusual choice (9% of games). More precise was Bg5 — kept pressure.

( 6. Be2 — you played this in 3 games )

Opponent mistake

6... Nbd7? in 18% of games. Best reply: f4.

📈 Openings DB · Sicilian

1. e4 c5 — Sicilian Defense

Nf3

892K

Nc3

341K

198K

87K

53 % white19 % draw28 % black

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ChessLaboratoryfor the serious.

Build your repertoirelike a coach

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14.6 milliongames

Improve your openingrepertoire.

Build your repertoire
like a coach

Find out where
you lose points

14.6 million
games

Improve your opening
repertoire.