For chess analysis Rybka has long become one of the. Who work and analyse with chess engines. The new multiprocessor version Deep Rybka 4 calculates much. Rybka 4 Aquarium allows you to play chess both vs computer (chess engine) and real players: Three handicap modes, including predefined material and elo rating lists. Buy Deep Rybka 4 UCI Download from Wholesale Chess. We offer great discounts and super-fast shipping on your favorite chess software titles from Chessbase, Convekta. Rybka 4 About Rybka The creator of Rybka Chess engine is Vasik Rajilich withorigin from Czech Republic. Interesting fact about the name is that Rajilich never said.

Don't worry, 80 kns means 1 million position for every 12 seconds, does it not enough for deep analyzes? 5 millions per only one minute already. The point of been faster for rybka means not kns number, but the ability to faster find correct lines and best deep plys, while 3000 kns Fritz and 5000 kns Junior just do the same job by diving into 'every ply one by one' without too much evaluation of positions. Centera Viewer Software there.

The 'high kns' approach faster and deaper in the endgames and in later middlegames with open queens, but in complex and early middlegames and in openings 5000 kns just useless speed, because this extra kns means only 2-4 additional plys, (12 Rybka plys vs 15 Fritz plys over one minute, for example), so Rybka will find better plys much faster. And there is the last problem - Rybka and Fritz both has blind spot for tactics with deep sacrifices, even after many hours of analyses, such engines with special tunes like Hiarcs (don't remember others) are slower than Fritz but has ability to break through those blind spots in positions with long attack and mate threats in middlegames, in positions with danger of passed pawn promotion and many other like this, where both Fritz (and all speedy engines like Junior too) and Rybka fails totally. Also there is an attempt to make fast engine and to make it with tunes for breaking throught the blind spots, but those attempts are not very successful yet (Shredder and stockfish for example), so those are just other engines and nothing more. That's very interesting. I know professional players know which engine is best suited for different kinds of positions, but you seem to know a lot about it. Have you worked a lot with engines yourself or someone you know?