It's not more than a simple Java applet, but the Wikipedia article pointed me here: http://www.pathguy.com/chess/Tamerlan.htm
Tamerlane Chess

I just played a game of Tamerlane chess with the computer online. I kind of hurried my way through it without thinking out all the moves, as I didn't have time, and this game would likely take a LONG time if you were really concentrating. I was losing, but I managed to end the game in a draw because I got my king into the enemy citadel lol.
Is there a website where I can play Tamerlane chess with the computer? Thanks.