Encyclopedia Of Chess Combinations -

: Over the decades, it has evolved through six editions. The 6th edition (2021) famously includes instructive tactical positions from every World Champion, from Wilhelm Steinitz to Magnus Carlsen .

A controversial chapter in the book's history involves allegations of plagiarism. For years, rumors circulated in the chess community that some editions or versions of the book—specifically those associated with Nikolaj Kalinichenko—were actually based on stolen digital databases. Encyclopedia of Chess Combinations

: According to reports on Chess.com , ChessBase (the owner of the original software) chose not to pursue legal action because the plagiarized work was published by a small, obscure company. Digital Transformation : Over the decades, it has evolved through six editions