: The book is available in Kindle format at Amazon and is included for free with a Kindle Unlimited subscription .
While there is no official standalone PGN file available for free download from the publisher, you can access the interactive content of Sergei Tkachenko's through digital chess platforms and ebook retailers . Official Digital Access Download One Pawn Saves The Day Sergei Tkachenko pgn
: You can purchase the One Pawn Saves the Day Ebook for approximately $7.99 . This platform allows you to play through the 100 studies on an interactive board within their app, which is the functional equivalent of having a PGN file. : The book is available in Kindle format