Download WZebra 4.2.4
Features /
Legal /
Requirements /
Installation /
Optional /
Feedback /
Mailing list /
Contribute /
Weaknesses /
Tools used
On this page you can download a Windows version of Zebra (WZebra).
Some features found in WZebra 4.2.4:
More details about features and suggested features:
The Othello game engine, the GUI design and all features added the last
two years were programmed by
Gunnar Andersson
(currently the only maintainer of WZebra).
The original GUI and feature set were created by
Lars Ivansson.
Legal stuff
The program is freeware and may be copied freely as long
as no modifications are made - this is our way of trying to
give something back to the Internet Othello community.
It may not be used for any commercial purposes without
the explicit consent of its creators.
We do not take any responsibility whatsoever for the consequences
of running WZebra.
System requirements
| Required | Recommended |
|---|
| OS | Windows >= 95 | |
|---|
| Processor | Pentium MMX | Faster is better... |
|---|
| Memory | 32MB | More is better... |
|---|
| Resolution | 800x600 | >= 1024x768 |
|---|
| Disk space | 20MB |
|---|
Installation
To install WZebra 4.2.4 from scratch:
Download the self-extracting archive below and run it.
| Name | Size | Last changed | Version | Contents |
|---|
|
wz424.exe
|
4.91MB
|
December 27, 2005
|
4.2.4
|
Full installation.
|
To update from WZebra 3.1-4.2.3:
Download the .zip file below and unpack its contents
(e.g. using WinZip or
WinRAR) to the directory
where WZebra is installed.
| Name | Size | Last changed | Version | Contents |
|---|
|
wz424update.zip
|
2.34MB
|
December 27, 2005
|
4.2.4
|
Application and help files.
|
Optional components
There are two opening books that can be used instead of the normal
opening book:
-
An extra large book containing more than twice as many lines as the
normal book. A drawback with it is that memory consumption increases
considerably.
-
An empty opening book. Its only use is for those who want to see what
happens if WZebra learns the game from scratch.
To install a new opening book: Download either of the .zip files and
unpack its contents (e.g. using
WinZip or
WinRAR)
to the directory where WZebra is installed. Then run the
batch file install.bat in that directory.
| Name | Size | Last changed | Contents |
|---|
|
bigbook.zip
|
3.20MB
|
April 21, 2002
|
Extra large opening book.
|
|
emptybook.zip
|
330B
|
February 4, 2002
|
Empty opening book.
|
Feedback
Do you have any suggestions on what to improve in WZebra?
Have you found any bugs?
In that case, please send an email to
gunnar@radagast.se.
You can also write to the mailing list, see below.
Mailing list
There's a
Yahoo group
where you can ask questions about WZebra,
report bugs, and give suggestions.
New versions are also announced on this mailing list.
Contribute
There are several ways in which you can contribute
to the development of WZebra:
-
Send clear and concise bug reports to
gunnar@radagast.se
when the program crashes or behaves strangely.
-
Send suggestions about new features to the same email address.
-
Translate WZebra into a new language.
Currently WZebra has support for 16 languages:
| Language | Translator
|
|---|
| English | Gunnar |
| Swedish | Gunnar |
| French | Bintsa Andriani |
| Italian | Donato Barnaba |
| Japanese | Ryuichi Hoshi |
| Finnish | Hannu and Satu Kotipalo |
| Portuguese | Luis Antunes Coutinho Cabral |
| Spanish | Jorge Bandres |
| Dutch | Daniel Rokven |
| Danish | Claus Qvist Jessen |
| Turkish | Ibrahim Okuyucu |
| Chinese (simplified) | Soong Hwee |
| Chinese (traditional) | Soong Hwee |
| German | Torsten Dörschel and Matthias Berg |
| Russian | Anton Soukhinov |
| Korean | Jihoon Chung |
If you're an experienced user of WZebra it will probably take you an hour
or two to come up with the translations into your mother tongue.
Send me an email if you want to contribute a translation.
Known weaknesses
This list is updated as we find new "features", problems and weaknesses.
Most of these are rather subtle and won't annoy the average user.
-
WZebra tends to be somewhat pessimistic when evaluating the
merits of a position.
This is most easily spotted when Zebra is set to analyze
a game; in an even position it will often find both
players about 1 disk behind.
-
Most games in the book were played by 22-ply WZebra.
The lower levels might suffer in some positions from the book
being "too clever".
-
If a position which can never occur in an Othello game is created
using the position editor, Zebra is likely to get confused and might
make strange moves.
This is because Zebra's knowledge was derived from positions taken
from real Othello games, not random positions.
Tools used when creating WZebra 4.2.4
Last modified October 2, 2006 by
Gunnar Andersson
gunnar@radagast.se
