9/25/2025 – Chess players have an advantage when it comes to learning a language. If they start with the help of a chess magazine, they already have a rough idea of what it is about. Roger Lorenz learnt Italian in this way while on holiday - with the help of the magazine "Torre e Cavallo". Now he can (almost) fluently understand Italian game commentaries and invites others to join in.
7/10/2025 – The area around Lone Pine is best known as the backdrop for Western films such as "Django Unchained". However, chess history buffs will also recognise it as the venue for important chess tournaments in the 1970s. Roger Lorenz visited the site searching for clues.
11/17/2024 – At the European Championship in Petrovac - not far from the famous Sveti Stefan island (pictured) - the German Chess Federation is well represented in terms of quality and quantity. In addition to the top German grandmasters, ambitious amateurs are also taking part, e.g. Roger Lorenz, well known to readers of this site from his interesting articles. Here are his impressions.
4/26/2024 – Inspired by a data analysis of the style of play in American basketball, Roger Lorenz has carried out a similar analysis for top-level chess. There have indeed significant changes over the last few decades — not necessarily positive ones.
4/5/2024 – Igors Rausis, born on 7 April 1961, gained notoriety primarily as a cheater. In July 2019, he was caught using a mobile phone in the toilet at an open in Strasbourg, and in December 2019, FIDE banned him for six years and stripped him of his grandmaster title. Rausis then changed his name to Isa Kasimi. Rausis, who suffered from cancer for a long time, died on 28 March 2024. In an obituary, Roger Lorenz recalls the sympathetic side of the grandmaster. | Photo: Novy Bor Chess Club
4/4/2024 – Alpha Zero has revolutionised chess programming. The programme taught itself chess by playing against itself and storing its training knowledge in a neural network. All programmes have followed suit with this technique. Roger Lorenz uses a simple example to show how neural networks work and how they can be trained.
12/14/2023 – Nowadays you can easily download chess engines that play better than Carlsen, Caruana, Keymer or Nakamura. But if you feel like it, you can also try to program them yourself. Roger Lorenz has tried it. In one weekend - and with the help of ChatGPT. | Photo: Coding robot (image created with Automatic1111 and Stable Diffusion)
London System PowerBase 2026 is a database and contains in all 11 285 games from Mega 2026 and the Correspondence Database 2026, of which 282 are annotated.
The London System Powerbook 2026 is based on more than 410 000 games or game fragments from different opening moves and ECO codes; what they all have in common is that White plays d4 and Bf4 but does not play c4.
In this course, Grandmaster Elisabeth Pähtz presents the London System, a structured and ambitious approach based on the immediate Bf4, leading to rich and dynamic positions.
Opening videos: Open Spanish (Sipke Ernst) and Classical Sicilian (Nico Zwirs). Endgame Special by Igor Stohl: ‘Short or long side’ – where should the defending king be placed in rook endgames? ‘Lucky bag’ with 35 master analyses.
YOUR EASY ACCESS TO OPENING THEORY: Whether you want to build up a reliable and powerful opening repertoire or find new opening ideas for your existing repertoire, the Opening Encyclopaedia covers the entire opening theory on one product.
London System PowerBase 2026 is a database and contains in all 11 285 games from Mega 2026 and the Correspondence Database 2026, of which 282 are annotated.
The London System Powerbook 2026 is based on more than 410 000 games or game fragments from different opening moves and ECO codes; what they all have in common is that White plays d4 and Bf4 but does not play c4.
In this course, Grandmaster Elisabeth Pähtz presents the London System, a structured and ambitious approach based on the immediate Bf4, leading to rich and dynamic positions.
Opening videos: Open Spanish (Sipke Ernst) and Classical Sicilian (Nico Zwirs). Endgame Special by Igor Stohl: ‘Short or long side’ – where should the defending king be placed in rook endgames? ‘Lucky bag’ with 35 master analyses.
YOUR EASY ACCESS TO OPENING THEORY: Whether you want to build up a reliable and powerful opening repertoire or find new opening ideas for your existing repertoire, the Opening Encyclopaedia covers the entire opening theory on one product.
€169.90
We use cookies and comparable technologies to provide certain functions, to improve the user experience and to offer interest-oriented content. Depending on their intended use, analysis cookies and marketing cookies may be used in addition to technically required cookies. Here you can make detailed settings or revoke your consent (if necessary partially) with effect for the future. Further information can be found in our data protection declaration.
Pop-up for detailed settings
We use cookies and comparable technologies to provide certain functions, to improve the user experience and to offer interest-oriented content. Depending on their intended use, cookies may be used in addition to technically required cookies, analysis cookies and marketing cookies. You can decide which cookies to use by selecting the appropriate options below. Please note that your selection may affect the functionality of the service. Further information can be found in our privacy policy.
Technically required cookies
Technically required cookies: so that you can navigate and use the basic functions and store preferences.
Analysis Cookies
To help us determine how visitors interact with our website to improve the user experience.
Marketing-Cookies
To help us offer and evaluate relevant content and interesting and appropriate advertisement.