ChessBase

• The Swiss amateur who beat Bobby Fischer turns 90: Happy birthday, Dieter Keller!

  Today, Dr Dieter Keller of Zurich celebrates his 90th birthday. Heartfelt congratulations to the International Master, who defeated several of the leading players of his time, most notably Bobby Fischer, Efim Geller, Bent Larsen and Oscar Panno. Eduard Frey presents highlights from a remarkable life. | Photo: Dieter Keller at the Zurich International Tournament 1959 | Source: Tournament book, via Europe Échecs

• Biel Festival - Live!

  The Biel International Chess Festival is taking place on 11-24 July. Following the Chess960 tournament on Saturday and the rapid chess stage on Sunday, the players in the Masters and Generations Challenge Triathlon face off in the first segment of the classical section on 14-18 July. | Follow the games live starting at 14.00 CEST (8.00 ET, 17.30 IST) | Photo: Biel Chess Festival

• Chennai Grand Masters - Live!

  The Quantbox Chennai Grand Masters is taking place on 16-22 July as an eight-player single round-robin with a classical time control. In its fourth edition, it brings together a field headed by world champion Gukesh Dommaraju, Nodirbek Abdusattorov, Arjun Erigaisi and Alireza Firouzja. Follow the games live with expert commentary starting at 11.30 CEST (5.30 ET, 15.00 IST)

• ChessBase´26 – Tips for beginners, part 23: Stay up to date with program updates

  Working with ChessBase´26 is so enjoyable because it builds on the experience of the developers from 18 previous versions. But you don’t have to wait for the next release — you’ll receive ongoing improvements directly to your computer through the free update service. And don’t worry: staying up to date with the latest updates takes just a few clicks. In this tutorial, we’ll show you how.

• Review: All new releases in June!

  Whether your focus is strategy, technique or opening theory, ChessBase's June releases have something for everyone. Renowned authors such as Adrian Mikhalchishin and Andrew Martin share a wealth of practical advice, while ChessBase newcomers Kostya Kavutskiy and Andy Woodward make an impressive debut with their first courses. The month also brings new Powerbase and Powerbook titles on the Slav and the Semi-Slav. Take a look at all the new releases from June!

• The 1926 FIDE Congress in Budapest

  In September, Samarkand will host the 46th Chess Olympiad. After FIDE was founded in 1924, the first international team tournament was held in Budapest in the summer of 1926, albeit with only a small number of teams. From these modest beginnings, the tradition of the Chess Olympiad developed.

• The 1858-Rated Kid Who Beat a Super-GM - The Underdog

  In this episode of The Underdog, Robert Ris presents a spectacular upset from the Asian Esports Chess Cup, where a young Thai player (Pakornnarong Liukasemsarn) defeats super-GM Andrey Esipenko despite an enormous rating gap. In a sharp Italian Game with opposite-side castling, Black bravely pushes the kingside pawns, opens the g-file and keeps finding dynamic resources while White misses several powerful attacking chances on the queenside. The game turns into a wild attacking masterpiece, ending with decisive tactics around the white king and a memorable victory for the underdog.

• ChessBase´26 – Tips for beginners, part 21: Maximum Training Effect with the Power Tool "Replay Training" (Part 1)

  Do you know the powerful training tool in ChessBase´26? It's called "Replay Training"! This great feature lets you actively go through games move by move—sharpening your strategic and tactical understanding in a targeted way. Whether under time pressure or not, the choice is yours. Train in a realistic setting, get instant feedback, and systematically improve your play—whether you're a beginner or an ambitious tournament player. In this tutorial, we'll guide you step by step through how Replay Training works. Let's get started!

• Surrealists and chess

  The Lyon Olympique Échecs club has just sent out an alert to 17,500 chess players and 2,500 other contacts. The message reads: "Surrealists and Chess – for €40, help us save a 19th-century workshop right in the heart of Lyon!" A support committee has been set up, which comprises writers, poets, painters, photographers, gallery owners, doctors, politicians, lawyers, bankers and more. Now it's time for the chess community to join.

• A Game That Outlasted the Day (7)

  In the comments on Part 5 of the series, readers pointed out that this was not a “master game” (as stated on the Guinness page), since Arsović had an initial rating of 2200 (which by today’s standards may correspond to a rating of 1400), while Nikolić’s rating was only 15 points higher. Now in Part 7 the author examines the remaining “competitors” to the Gorkov–Golubenko game for the title of the longest game by number of moves.