Fritz Powerbook 2019 upgrade from Fritz Powerbook 2018

The Fritz Powerbook 2019 contains 25 millions opening positions, derived from 1.7 million high class tournament games. Together with each position all relevant information is stored: all moves that were played in the position, by players of what average rating, with what success and performance results. The games from which the Fritz Powerbook 2019 were derived are also included on the DVD. This means that in any position of the openings tree you can load and replay the games in which the position occurred.