return fritz gm challenge, keep chessmaster, and purchase fritz 10
Or instead of fritz 10, get the new Fritz 12. I don't personally go for the fancy tutorials, etc. I look for a good analysis engine. I use fritz 11 and the functions i use- calculation training, unlimited tactics on playchess server, Engine to find best move, etc; are more than enough to improve
See philidor you another chess player who was not aware of the great free uci chess engines you can download an run on fritz,Stockfish,toga,pro deo,twisted logic,bright,cyclone,galurung,All rybka uci engines up thru 2.3 are free.These are just a few i have about 125 chess engines i run about 30 on fritz the rest on arena,infinity chess etc.fritz 11 rated 2959 single cpu fritz 12 2983 single 32 bit cpu.Rybka 2.3 single cpu 3023 32bit.Some like rybka 2.2 multiple cpu well above 3000 2.2rybka single cpu 32 bit at 2989.Stockfish at 3000 rating toga above2900rating.but try pro deo over 2700 with very human like playing style same fo delfi uci engine.twisted logic at 2800 has a style unlike any chess engine i have ever played.On arena which unlike fritz an other platforms loads not only uci chess engines but stong win engines such as thinker an the win ver. of pro deo an others.The cheap fritz grandmaster II an III are wonderful platforms to load an run the great free engines.