French (Thanks Google Translate!)
chess - échecs
check- vérifier
checkmate - échec et mat
king - roi
queen - reine
rook - freux
bishop - évêque
knight - chevalier
pawn - pion
Ha! Well, it got 5/9 correct.
"Reine" and "évêque" are quite understandable mistakes that a human who does not know anything at all about chess in French might make.
"Freux" refers to the bird (un corbeau), which has nothing to do with the origins of the English chesspiece name "Rook", which comes from Arabic "rukh", presumed to refer to a chariot.
"Vérifier" is a mistake that only a machine could make.
This should save a lot of time. Chess in 74 languages:
http://www.shakki.net/kerhot/KemTS/nap-pieces.htm
Yes , it saves time. But that is not what this thread is about. I think it is a highly original idea , bringing together all the nations/languages of this world. It would also be nice if people only post on this when they realy come from that country. I mean , I can post the Polish names , but I am not Polish.
I also think Watcha's idea to name the pieces was a good extention of the theme.
Well done OP !!
Others : This is finally a thread that doesn't deserve to be trolled. I am giving the OP a reward , I'll send him a trofee.