Back to the Rossolimo

With white i got some problems against the accelerated fianchetto
in the Sicilian, even when going for the Maroczy variation,
e4 c5 Nf3 Nc6 d4 cxd4 Nxd4 g6!! c4! etc.
So i tried to improve my Rossolimo variations with Bb5 instead
of d4 in the line above, and i now again achieve advantage for white.

So with these improvements my computer rating is going up again,
now with standard nr 5 on ICC.
To a large extent still due to the improved performance of Rybka
on my new AMD X2, with Windows X64 installed,
but the opening book used must also be good of course.

In fact, the higher the ratings of the opponents playing me,
the more important the quality of the book becomes,
as i've clearly seen. Small 'errors' , ie deviations from the
best book move can have big consequences, a well known
fact in chess; at least with respect to tactical errors.