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. Material will be sent in pgn/cbv files directly to your e-mail address.
Check out the free samples here.
Today’s offers are:
Trompovsky – US$ 15 (instead of US$ 20)
King’s Gambit – US$ 20 (instead of US$ 30)
Russian Game – US$ 15 (instead of US$ 20)
Caro-Kann – US$ 15 (instead of US$ 20)
10 examples on Queen versus 3 minor pieces – US$ 2
10 examples on Two Rooks stronger than a Queen – US$ 2
10 examples on Queen and Bishop versus Queen and Knight – US$ 2
10 examples on Same color Bishops – US$ 2
If you have any questions about the material, send an e-mail to firstname.lastname@example.org.