This looks like a lot of fun, I'd never heard of this! But... where would one buy it? I looked at the usual online game store suspects, also boardgameprices.com, and even target.com, but don't see it.
EDIT: After some more research I found the English edition; if anyone is looking for it, levalet.com, based in Canada, has it for $14.95 Canadian dollars. I noticed that they also have the cartoony (French) version of Knightmare Chess, for those who like that art better and can read French! (it's called Tempete Sur L'echiquier). Cool store.
Top 100 Games of all Time
Dice Tower Convention, July 2012!!!!
