Convekta Chess Software
Deep Rybka 4 Aquarium offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases and much more.
DEEP Rybka 4 Aquarium
The Rybka4 opening book is a high-class compilation of opening theory. It was developed for the world‘s strongest chess entity - 100 cores cluster Rybka and program Rybka4 and will maximize the program‘s playing strength.
Rybka 4 Opening Book