Portable Draughts Notation Checker

The Portable Draughts Notation Checker is no longer available as a Java Applet, because increased security restrictions in Java have made it unusable. It is now available as a Java Webstart application. The PDN Checker checks if a PDN file is valid according to the PDN 3.0 draft standard given on http://10x10.org/pdn/.

To run the PDN checker click the launch button. A warning message will appear asking to accept a digital signature:


After accepting the signature the PDN Checker window will appear. Enter PDN text in the PDN Text tab or load a PDN file, and then press the 'Check' button. A status message will appear, and warnings or error messages will appear in the Output tab.

PDN Checker