London System: Complete Guide

A system-based opening built around Bf4, Nf3 and e3 regardless of what Black plays — low on memorization, high on plans, and a favorite from beginner to grandmaster. Drill every main line against an adaptive engine, backed by real Lichess win rates and Stockfish evaluations.

13 variations 38,438,170 total games Avg Stockfish +0.31

Play the main line: London System

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All 13 variations of the London System

Openings & Plans London System ECO D02 9M games Anti-Openings London System ECO D02 9M games Openings & Plans London System: e6 ECO D02 7M games Openings & Plans London System: Nc6 ECO D02 6M games Openings & Plans London System: Bf5 ECO D02 2M games Anti-Openings London System: c6 ECO D02 1M games Openings & Plans London System: c5 ECO D02 747K games Openings & Plans London System: g6 ECO D02 699K games Anti-Openings London System: a6 ECO D02 316K games Anti-Openings London System: Nbd7 ECO D02 105K games Openings & Plans London System: Bg4 ECO D02 47K games Anti-Openings London System: h6 ECO D02 14K games Anti-Openings London System: Nh5 ECO D02 564 games

Frequently asked questions about the London System

What is the london system in chess?

The London System is a chess opening family with 13 variations covered on Chessy. Over 38 million Lichess games have reached these positions across all rating levels.

Other opening families