There is a 50% discount on ALL openings, middlegame & endgame examples (most are from Grandmaster games and contain analysis) for the next 24 hours! Opening analysis/game fragments are sent by pgn or cbv formats. The more themes/methods/patterns you know and can apply, the better you will play!
E-mail me at firstname.lastname@example.org if you have any questions or simply purchase via PayPal (my PayPal e-mail is email@example.com). Please, indicate your e-mail address so I know whom to send it to.