Check out Atomic Chess, our featured variant for November, 2024.

Since Java is no longer supported in most browsers, our Java applets probably will not run unless you install an extension that will run them. We recommend installing the CheerpJ Applet Runner extension on Edge, Chrome, or another Chromium browser. If your browser still does support Java, and you're not using this extension, make sure this site is listed in your Java exceptions list. You should find this in the Security tab of your Java control panel.

Decima Chess

If you had a Java-capable browser, you could play Decima Chess here.
Keys "s"=save "l"=load "b"=back once

These are simple illustrations rather than strong opponents.

Check is having ten points worth of pieces on the far rank. Pawns can double-move anywhere as long as there is no exposure to en passant. Captures on home rank destroy the capturing piece. I had promoting pawns become kings on the next move. Mike Nelson, 2005.

Decima

King Ten points.

Knight Nine points.

Bishop Eight points.

Rook Seven points.

Duke King + Knight. Six points.

Archbishop King + Bishop. Five points.

Seneschal Rook + King. Four points.

Pegasus Bishop + Knight. Three points.

Marshall Rook + Knight. Two points.

Queen One point.

Chess Variants

Bug reports? -- Thank you! Keep them coming!

Written by Ed Friedlander

WWW Page Added: Sunday, March 13, 2005

	King	Ten points.
	Knight	Nine points.
	Bishop	Eight points.
	Rook	Seven points.
	Duke	King + Knight. Six points.
	Archbishop	King + Bishop. Five points.
	Seneschal	Rook + King. Four points.
	Pegasus	Bishop + Knight. Three points.
	Marshall	Rook + Knight. Two points.
	Queen	One point.