Rybka 2.3
Chess Playing Software Download

Rybka 2.3 UCI is the strongest playing engine in the world! Its rating surpasses 3000! Thats 100-200 points higher than any other chess playing program! Most elite players now use only Rybka 2.3 for work. Rybka's success stems from its brilliant synthesis of its superior positional evaluation and move selection functions.

The main developer of the program - international master Vasik Rajlich (Hungary)- has created the most human-like playing style ever found in a computer program. Excellent evaluation of the dynamic factors combined with subtle definition of the positional nuances thrusts Rybka ahead of the pack.

This CD includes:

•  Rybka 2.3 UCI for 32 Bit and 64 Bit processors and previous versions
•  Opening library for Fritz interface
•  Rybka 2.3 for Chess Assistant 9

Rybka 2.3 UCI is not a standalone program and works only in other popular interfaces e.g. Fritz, ChessBase 9, Shredder, Junior, Hiarcs, Chess Assistant, Arena and etc.

The leadership of Rybka 2.3 among chess playing programs is beyond question. Rybka won the 16th Padeborn Computer Chess Championship 2006 with the score 6.5/7 and is the top rated chess software on every rating list.

CCRL

(40 moves in 40 minutes):

1. Rybka 2 - 3097
2. Zap!Chess -3033
3. Hiarcs 11 4CPU - 2957 …

CEGT

(40 moves in 20 minutes):

1. Rybka 2 - 3028
2. Zap!Chess Zanzibar - 2930
3. LoopP2 - 2888 …

System requirements: IBM-compatible PC, Hard Disk (20 Mb of free disk space), Windows 2000/NT/XP/Vista, CD-ROM drive, playing chess interface.