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Chess Viewer: Demonstration of XSL FO and XEP

The power of XSL lies in its ability to perform radical transformations of the XML data source. This page contains yet another proof for this fact: you can build a chessgame viewer with a stylesheet!


The source document is a transcription of a chess game played by Garry Kasparov against a chess supercomputer -- IBM Deep Blue. The game is encoded in a form resembling the well-known Portable Game Notation (PGN) format. The source is very compact: a sample game on this page [DeepBlue.xml] is less than 4 kBytes in size.


The stylesheet converts this arid text into a sequence of board diagrams, drawing every intermediate position as a graphical image (a special chess font is used). Applying a 23 kB stylesheet [chess.xsl], we get a 415 kBytes (!) FO stream []. These numbers give an idea of how deep the transformation is.


The final step of the whole procedure consists in converting the result into PDF using XEP. The resulting PDF file [DeepBlue.pdf] is much smaller than the source FO stream -- less than 90 kBytes. (XEP implements PDF compression).


We hope XSL fans will enjoy this example; and XSL foes will acknowledge its power!


More chess games created by the same stylesheet:


FO Source  

PDF PostScript
Robert Fischer - Max Euwe  Fischer-Euwe.pdf 
Robert Fischer - Mikhail Tal  Fischer-Tal.pdf 
Garry Kasparov - Anatoly Karpov  Kasparov-Karpov.pdf 

We have used an unabridged chess notation; the original PGN data are even more concise. We know it is possible to process even the short chess notation by XSL, and gladly leave this exercise to volunteers .



March 5, 2011
XEP 4.19 released

New extensions for RichMedia in PDF,
sticky notes and file attachments, and
overprinting. Extended XSL1.1 scaling
attributes, and styling for bookmarks.
XForms output, support for SVG in XPS
generator, and other improvements.

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March 1, 2011
RenderX at 2011 AIIM

Visit us in Booth #1820 and #1109 at
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February 22, 2011
VisualXSL 2.4.2 released

Improved support for large designs.
Fully configurable custom template
generation. UI related bugfixes
and table editor improvements.

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December 8, 2010
VisualXSL 2.4 released

Support for external EXSLT library -
Mvp.Xml EXSLT.NET module. UI & logic
related bugfixes. Improved XSLT security.

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October 19, 2010
VDPMill 3.4 released

Major release: a GUI application
for full job control, lots of usability
improvements, and bug fixes.

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September 27, 2010
XEPWin 3.0 released

Release enables better utilization
of computational resources in multi-
core environments. XEPWin 3.0 also
contains improvements in configuration,
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September 8, 2010
EnMasse 2.3 released

EnMasse is now easier than before!
The Windows version includes
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with built in validation support.
The platform-independent version
was shipped with command-line
installer and configuration script.

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August 25, 2010
VDPMill 3.3 released

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with an XML-RPC interface, VDPMill
Control Panel as a console to configure
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friendly GUI application to create
VDPMill job tickets.

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June 3, 2010
VDPMill 3.2 released

Release includes XML job ticket support
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project files, customized post-
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for separated/joined output.

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May 4, 2010
VisualXSL 2.3.1 released

Release includes JavaScript for
radiobuttons and action buttons
in PDF forms, further improvements
over Undo operations, and several
display problems.

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