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descriptionJazz EmptyJazz

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Jazz Logolv10

Jazz
by Evert Glebbeek

http://www.eglebbk.dds.nl/program/chess-index.html

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Jazz r501

Linux 32/64 bit
www.eglebbk.dds.nl/program/download/Jazz-501-linux.tar.gz

Windows 32/64 bit
www.eglebbk.dds.nl/program/download/Jazz-501-win.zip

Mac OS X intel32/64/ppc
www.eglebbk.dds.nl/program/download/Jazz-501.dmg

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Jazz r640 (x32/x64, Linux, Mac OSX & source)

source (.tar.gz)
Linux 32/64 bit binary (.tar.gz)
Windows 32/64 bit binary (.zip)
Mac OS X intel32/64 binary (.dmg)

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Jazz 6.40 JA (UCI) (Wb)

Windows/Linux/Android 64/32

https://dl.dropbox.com/u/5047625/jazz-640-ja.zip
http://cl.ly/MR4x/jazz-640-ja.zip

Android version (direct link):
https://dl.dropbox.com/u/5047625/jazz-android-ja

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Jazz 6.40 JA

Windows/Linux/Android 64/32

What's new:
Uci builds corrected to show pv output.

https://dl.dropbox.com/u/5047625/jazz-640-ja.zip
http://cl.ly/MTw9/jazz-640-ja.zip

Android version (direct link):
https://dl.dropbox.com/u/5047625/jazz-android-ja

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New Jazz version 721

available from http://www.eglebbk.dds.nl/program/chess-download.html

Evert Glebbeek wrote:

Compared to the previous version (640) this version should be a clear improvement, but that version has unfortunately only played 44 games on the CCRL 40/40 list so there is no clear rating for it (its provisional rating is about 2400).

Changes include:

- Improvements to evaluation of end-game positions
- Improved move ordering during the search
- Depth-dependent null-move reduction factor
- Evaluation hash table
- Eliminate lazy evaluation
- Many enhancements to the commandline interface (see below)
- Addition of a "benchmark" test.
- Better use of compiler intrinsics for bitscan/population count

In addition, there have been a large number of bugfixes. One important bugfix corrects a problem that could casue Jazz to crash when it wanted to ponder but no ponder move was available.

As mentioned, this version includes a "benchmark" command, which can be used to test the correctness of the build as well as the performance. The benchmark signature for this version is 12820210.

The binary downloads were compiled under Linux with gcc (Windows and Linux versions), the OS X version was compiled with Clang and should work on Intel Macs running 10.6 or higher. Note that the provided executable is for Win/XBoard. I can add the UCI version later.

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Jazz r721

Win32/64, Linux32/64, Mac32/64

- silent update, version number unchanged
- new 64-bit UCI compiles
- shortened UCI program name that gets printed
- it is probably best to download the engine again

http://www.eglebbk.dds.nl/program/chess-index.html

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Jazz r799b
http://www.eglebbk.dds.nl/program/chess-download.html

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Jazz r801
- Windows-only, WB-only bugfix for r799
http://www.eglebbk.dds.nl/program/download/Jazz-801-win.zip

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Jazz r840

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