Next pawn becomes: Computer level:

P4wn is Javascript chess written by Douglas Bagnall. Original website can be found here:

This version is 6K engine with new graphics for better readability and respective code changes.


  • Castling is done by moving the king, rook moves automatically.
  • When swapping sides computer makes its move instantly (since it's its turn) so you may be disoriented at first and not notice it.
  • May be slow/jerky with some browsers/computers


You can run this without the Internet; just use File > Save As...
Microsoft Feature:
Copy the GIF images in the sub-folder the browser built to the same folder as this program.
Or, repeat the File > Save As... to the sub-folder the browser built.