💡 Study the complete course "London System" by IM Milovan Ratkovic. Get 50% OFF (valid only till 3 October) - https://bit.ly/3mYgSqu The London System is a chess opening that usually arises after 1.d4 and 2.Bf4, or 2.Nf3 and 3.Bf4. It is a "system" opening that can be used against virtually any Black's defense, and thus comprises a smaller body of opening theory than many other openings. The London System is one of the queen's pawn game openings where White opens with 1.d4, but does not play th