A must for London players
How many times have I played these lines and never knew how to win the position.
I am a better London player because of this app.
Response from developer
Thank you for the feedback!

Archived App
This is an archived listing of the app previously available on the App Store.Practice chess with 322 puzzles focused on the London System opening. After solving a puzzle, view the full game it originated from. Exercises are categorized by Black's defensive responses.
1.0.2
July 27, 2022
Updated links to the developer's website and the list of chess applications
Thank you for the feedback!
The London System app offers 322 chess puzzles specifically designed around the London System opening. After solving each puzzle, you can view the complete game from which the position was taken.
The puzzles in the London System app are divided into four parts, based on how Black counters the London System. All games featured in the app resulted in a victory for the players using the white pieces.
The London System app is a paid application, priced at $13.99. This one-time purchase grants you access to all the included chess puzzles and game analyses.
The London System app is available for iPhone, iPad, and iPod devices. It is designed to run on Apple's mobile operating system.
The London System app was last updated on July 27, 2022, to version 1.0.2. The initial release date was March 1, 2022.
The London System app has an age rating of 4+. This indicates it is suitable for children and adults alike, with no mature content.
The provided data does not indicate the presence of advertisements in the London System app. It is a paid application, suggesting an ad-free experience.
Based on the available data, the London System app has received a perfect 5.0-star rating from 2 users. This suggests a very positive user reception.