The examples (middlegame, endgame) are usually well analysed and theoretically wise the material is large and frequently updated. If you have any questions while studying the material, let me know and I will help. It is possible to buy it using PayPal and sending payments to email@example.com (please, indicate your e-mail address, so I know whom to send it to 🙂 ). Material will be sent in pgn/cbv files directly to your e-mail address ASAP.
Check out the free samples here.
Today’s offers are:
Gruenfeld – US$ 20 (instead of US$ 30)
Queen’s Indian – US$ 10 (instead of US$ 15)
Nimzo-Indian – US$ 15 (instead of US$ 20)
King’s Indian – US$ 25 (instead of US$ 35)
10 examples on Piece sacrifice for 2 (3) pawns – US$ 2
10 examples on Development advantage – US$ 2
10 examples on Opposite color Bishops with Knights – US$ 2
10 examples on Knight better than Bishop – US$ 2
If you have any questions about the material, send an e-mail to firstname.lastname@example.org.