Pre-order Rybka 4, save 10%

Pre-order Rybka 4 and save 10%.

The new Rybka 4 plays more aggressively and more tactically. The engine has been improved in almost all areas. Rybka 4 is indispensable for all those who work and analyse with chess engines. This is a chess program that can do more than calculate.

Pick up this temporary bargain now!