Cool variants of Chess and the science of War

I just found this really neat article about chess. I am always curious about current affairs or research related to chess and this is about the coolest I've seen in a while. http://www.guardian.co.uk/science/2004/mar/04/2
Researchers actually design chess variants: diferent amount of moves per turn, limited visibility of oponent's pieces... and try to investigate important aspects of real warfare.
I wonder if these type of variants are available for playing online?? Anybody know?

I find chess has a very high degree of abstraction compared to other wargames I play. If you are interested in (non-chess) alternatives I recommend you have a look into something like ancient wargame rulesets - a good example is DBMM. There are no square limitations, varying numbers of pieces per side, a much larger battlefield with terrain, varying number of moves per turn, stratagems/tricks for confusing your opponent, stone-paper-scissors troop interactions (a beats b, b beats c, c beats a), gradual loss of cohesion and control as the battle progresses, randomness (in movement and combat) by the use of a dice, and the ability to implement grand strategies and/or purely tactical plays. This game is based on real historical armies from around 3000BC to about 1500AD.

Alternatively, there are other games (and clubs) if you are interested in the Napoleonic period, modern day warfare, Colonial expansion etc etc.

That sounds neat, I looked around but I haven't found a website where you can try the game on-line.