The examples (middlegame, endgame) are usually well analysed and theoretically wise the material is simply large. 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.
Today’s offers are:
Scotch Game – US$ 10 (instead of US$ 15)
Center Game + Danish Gambit – US$ 10 (instead of US$ 20)
Italian Game – US$ 10 (instead of US$ 20)
10 examples on Nxf7 sacrifice – US$ 2
10 examples on Sacrifice of White Knight on g7 – US$ 2
10 examples on Knight better than Bishop – US$ 2
10 examples on Rook & Bishop versus Rook & Knight (with both sides having pawns as well) – US$ 2
If you have any questions about the material, send an e-mail to firstname.lastname@example.org.