Fritz 21 has been launched, marking a significant advancement in chess training technology. This latest version of the chess engine has achieved a remarkable 3,620 Elo rating, reflecting a gain of 40 Elo points. It features a modernized interface that enhances user experience and allows for a more direct playing style. One of the standout features is the ability to challenge historical chess legends such as Emanuel Lasker, Mikhail Tal, and Anatoly Karpov, with their playing styles simulated in an engaging manner. The new calculation training mode and Bullet Training Mode are designed to improve players' skills under time constraints, making training both effective and entertaining. Additionally, Fritz 21 includes an extensive opening book with over one million theory moves, providing users with statistical insights into their gameplay. For a one-time purchase of €69.90, users can access this comprehensive training tool, which also includes a three-month ChessBase Premium Account for online play and additional resources.