London System

Free, unlimited analysis for every London System game you play on Chess.com or Lichess. Our opening book holds 135 catalogued positions for this family under ECO D02.

Analyse your own London System games, free

Enter your Chess.com or Lichess username and Lumichess will pull your games and grade every move with Stockfish 18. There is no daily limit and no account required. Book moves are flagged as theory, so you can see the exact move you left London System preparation and what the engine preferred instead.

Across a batch of games, the Profile Report scores your opening repertoire as one of six skills, benchmarked against players at your rating, so you can tell whether the London System is earning its place in your repertoire or quietly costing you points. Insights then shows your record with it by colour across your whole history.

Named variations of the London System

Our opening book catalogues 1 named variations in this family. Here they all are:

• Poisoned Pawn Variation

More chess openings

Browse every opening family in our book from the chess openings index, or read how the Game Report grades a move.