Chess Assistant 15 PRO Advanced database management and fast search; unique Tree Mode for better analysis Play and analyze with Houdini 4 Pro - the strongest engine available HUGE game databases (over 6 million games) and CAP evaluations; premium updates of 3000 new games per week Access to 7-piece Lomonosov Endgame Tablebases until the end of 2015 Bonus: Chess Opening Encyclopedia