Chess Suppliers

Top » Catalog » Software »

My Account | Cart Contents | Checkout

Categories

Software

Tell A Friend

Information

Rybka 3 (with Chessbase interface)

£39.99

Click to enlarge

Rybka 3 with ChessBase Interface

THIS IS WHAT RYBKA 3 OFFERS:
chess engine “RYBKA 3“ by Vasik Rajlich
Fritz 11 user interface with many training functions + all-new Rybka analysis
features (explained in detail below)
Access to the ChessBase internet chess server playchess.com
(free for 12 months) Database with 1,000,000 games
Language: English
Rybka 2, the world’s strongest chess program, leads all the ranking lists clearly
with a rating well above Elo 3000. Now Rybka 3 is here with a drastic improvement
of at least 80 Elo points. Rybka, which translates to „little fish“,
is the shooting star of computer chess and the reigning world champion,
having won the title at Amsterdam in 2007.
The author of Rybka, Czech/American International Master Vasik Rajlich, has
implemented an extraordinary understanding of dynamic factors into his program.
This often results in long-term pawn or exchange sacrifices and an active
positional playing style resembling human chess. Rybka scores well in all types of
situations but dominates especially in asymmetric positions which arise for
example in Sicilian Defences. The success of the program stems from
dedicated team work: IM Iweta Rajlich is the main tester; Jeroen Noomen
contributes opening theory and tournament preparation; IM Larry Kaufmann
develops positional evaluation algorithms.

Today the main use of chess software is in interactive analysis.
Rybka’s superior playing strength helps you to quickly assess a position.
But analysis with Rybka 3 is much more than evaluations and best moves.
In the user interface designed by ChessBase, Rybka 3 introduces several
ground-breaking new analysis features: Rybka 3 with ChessBase Interface
Monte Carlo Analysis yields precise evaluations by playing thousands of ultrafast
games in a few minutes in a given position.

Sampled Search gives detailed information about the search process, showing
scores and alternative moves in the main line. This is helpful when the program
searches for a long time in one position. Singular Moves are annotated graphically.
This highlights situations where only one clearly best move exists.

Look for win: whenever you feel that there should be a forced win in a position
you can explicitly ask for it. Rybka then searches for a decisive move,
considerably faster than in normal analysis.

Persistent Hash: Rybka can save its hash tables between analysis sessions to
preserve valuable information already accumulated in the search tree.
Includes a database of one million games and one year of access to the chess
server Playchess.com

All you need to know about Rybka (Chessbase interface)

There are not two but eight Rybka engines on the program disk of each of the two
products, Rybka 3 and Deep Rybka 3.
The 64-bit versions run only under Windows 64 bit, the 32-bit versions run both
under Windows 32 bit and Windows 64 bit. The majority of users will be running 32-bit
versions of Windows.
Here is an overview of the engines:
(SP = Single Processor “Rybka” / MP = Multi Processor “Deep Rybka”)
Rybka 3
SP 32 bit Chess Human Dynamic Chess 960
SP 64 bit Chess Human Dynamic Chess 960

Deep Rybka 3
MP 32 bit Chess Human Dynamic Chess 960
MP 64 bit Chess Human Dynamic Chess 960

The engine labelled “Chess” is the standard chess engine. The one labelled “Human”
evaluates in a way that is closer to the way human grandmasters think.
If you play these two engines against each other the pure “Chess” engine is
likely to win. However, the Human engine will often deliver better results in
long-time analysis and in analysis of your own games. Furthermore, in the opening
phase, the “Human” engine plays moves that match GM games
20% more often than the “Chess” engine does.

The “Dynamic” version of Rybka is almost exactly the opposite. It evaluates
dynamic factors higher than the standard version. Such factors play a role for
instance in certain gambit lines, which the Human version may find dubious,
while the Dynamic version sees good compensation for the sacrificed material.
The “Chess 960” engines play both Chess 960 (FischerRandom) as well as classical
chess. Since Chess 960 requires additional code there is a special
version for this variation of the game.

Multiple variations
The ability to analyse a position with the best, next best, etc. move displayed by
the engine, has been extended. There is a new dialog box that allows you to
determine how many lines are displayed and give an evaluation window
for them.

Find better / clearly better move
This works something like “Next best move”, with an important difference:
you can give the engine a minimum requirement for the alternative move.
If this value is not available then no alternate line will be displayed.
This may not seem so useful, since it will often retrieve nothing.
But it can dramatically increase the speed of the search. If you think there must
be something better than the currently displayed main line you can switch it off
with this function. The engine will then not waste any time generating the previous
main line but concentrate its full attention on the alternatives, reaching its
conclusions much faster than it otherwise would.

Shared analysis
Another interesting function is the shared analysis. If you use this function a
number of things happen. First of all the currently working Rybka locks itself onto
the current position, then releases half of the processor or processors
that it is using. Then a second Rybka engine is started, using the free
processor capacity. Both engines run in analysis mode. If you are playing through
a game or analysing a position the B-engine will follow the moves on
the board, while the base engine continues to work on the original position.
Now comes the most important part: both engines use the same hash tables.
Engine B is entering values in the hash tables that the base engine will encounter
and use, allowing it to profit from deep interactive analysis
performed by the B-engine together with its human operator. What you are
doing is to feed interesting ideas to the base engine, which uses them in its own
full-width search.

Monte Carlo Analysis
This is a new method of analysing a position. The engine plays a large number of
very fast games, internally, and produces a statistically relevant evaluation.
The results produced by the Monte Carlo analysis are not like the usual
position evaluation of chess engines. Since the games are played all the way to a
decision the long-term chances are better evaluated than in a traditional search.

System requirements:
Minimum: Pentium 1 GHz, 512 MB RAM, Windows Vista or Windows XP
(using Service Pack 2), DVD ROM drive, WindowsMedia Player 9.
Recommended: PC Intel Core 2 Duo, 2.4 GHz, 4 GB RAM, Windows Vista,
GeForce8 graphics card (or compatible)with 256 MB RAM or higher,
100% DirectX compatible sound card, Windows Media Player 11, DVD ROM drive.

Customers who bought this product also purchased

Streetfighting Chess

Shopping Cart

0 items

Quick Find

Specials

The Trompowsky
~~£14.99~~
£7.50