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Sicilian Defense

Sicilian Defense: Staunton-Cochrane Variation: what to play after e6?

Best move

Nf3+0.12

Staunton-Cochrane Variation, White's most effective continuation according to computer evaluation is Nf3, assessing at +0.12. By developing toward the center, White prepares to…

Games played
1.61M
To move
White
Evaluation
+0.12
Depth
25

Game counts: Lichess opening book. Move ranking and evaluation: Stockfish. How this page is built

Why Nf3 is the best move

In the Sicilian Defense: Staunton-Cochrane Variation, White's most effective continuation according to computer evaluation is Nf3, assessing at +0.12. By developing toward the center, White prepares to contest the d4 break while keeping flexible development options open. The most heavily tested continuation in the database remains Nc3, but Nf3 provides balanced piece coordination and traditional central pressure.

Primary Classical Paths

White's choices primarily center between developing the kingside knight or the queenside knight. Although Nf3 carries the highest engine assessment (+0.12), it appears in 24.3% of recorded games (392K recorded), yielding a 49.1% score for White. An illustrative engine continuation features Nf3 Nc6 d4 cxd4 Nxd4 Nf6, transitioning into open central play where White trades a central pawn to open lanes for piece activity.

The Popularity of Nc3

By far the most common deployment is Nc3, featured in 75.0% of recorded games (1.21M recorded) with a 50.9% score for White and an engine evaluation of +0.01. This move reinforces control over d5 and fits into closed or delayed-open setups. A potential continuation running from this move is Nc3 Nc6 Nf3 Nd4 Ne2 Nxf3+, resolving knight tensions in the center while maintaining equal chances.

Rare Sidelines

Other continuations are seen far less frequently and score lower. The quiet developing move Be2 rates at -0.09, where play may proceed along Be2 Nc6 Nf3 g5 d3 h6. Pawn advances such as a3 account for 0.7% of games (11K recorded) with an evaluation of -0.12 and a 45.0% score, illustrating lines such as a3 Nf6 e5 Ng8 d4 cxd4. The waiting move h3 is evaluated at -0.14, demonstrating h3 Nf6 Nc3 Nc6 Nf3 d5. White usually achieves better piece harmony by sticking to standard development with Nf3 or Nc3.

What else gets played here

Move choices from 1.61M games in the opening book, with the engine's evaluation of each.

MoveEvaluationPlayedGamesWhite score
Nc3+0.0175%1.21M51%
Nf3Engine pick+0.1224%392K49%
a3-0.121%11K45%
Be2-0.090%0—
h3-0.140%0—

Frequently asked questions

What is the best move for White in the Sicilian Defense: Staunton-Cochrane Variation?

Nf3 (+0.12). Staunton-Cochrane Variation, White's most effective continuation according to computer evaluation is Nf3, assessing at +0.12. By developing toward the center, White prepares to…

Why is Nf3 the best move here?

Staunton-Cochrane Variation, White's most effective continuation according to computer evaluation is Nf3, assessing at +0.12. By developing toward the center, White prepares to contest the d4 break while keeping flexible development options open. The most heavily tested continuation in the database…

How often does this position occur?

This position has been reached 1.61M times in the opening book.