D00

London System

A solid and flexible opening system for White that begins with 1.d4 d5 2.Bf4. White develops the dark-squared bishop before playing e3, creating a sturdy pawn structure and reliable piece placement. Popular at all levels for its simplicity and consistency.

A solid and flexible opening system for White that begins with 1. d4 d5 2. Bf4. White develops the dark-squared bishop before playing e3, creating a sturdy pawn structure and reliable piece placement.

6Sub-Variations
3Study Lines
11Deepest Line
View Variation Tree →
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
6Sub-Variations
3Study Lines
11Deepest Line

Training Modes

Start Here

Explore

Browse the full variation tree and discover named branches.

Learn

Play lines against the computer and get instant feedback.

Traps

Punish common opponent mistakes in this opening.

Dive Deeper

Explore sub-variations with their own training modes and traps.

Key Lines

Accelerated London System, Steinitz Countergambit Accepted→Accelerated London System, Steinitz Countergambit, Morris Countergambit Accepted→London System→Morris Countergambit→Rapport-Jobava System→Steinitz Countergambit→