nononononononon you guys are all mistaken
the
rook (also known as castle) is the only
non-human piece in the game, making the most obvious choice to be the
sentry (for the purpous of the chess set, I'd recommend the lv.1 sentry)
The
king should definitely be the heavy, but I think that perhaps to have it make more sense, said
heavy should be carrying the
intelligence B-)
As for the
bishop, I'd definitely recommend the
spy, as the bishop moves
diagonally while most other pieces move straight.
The
knight should definitely be the
soldier, as the knight in chess is the only piece capable of
jumping over another piece using it's 'L'-shaped movement.
Queen is kinda iffy. If you're going for the
heavy/medic idea, then yeah it should be a
medic. However, it should also be noted that the queen is the
most powerful unit in the game, and this should also be taken into consideration.
The
pawn is the expendable, frontline soldier. This can either be the
scout or the pyro, I'm not sure. I think that perhaps the
red team could have pyros and the
blue team scouts, as to include all classes (except the sniper, engineer, and demoman, but perhaps you could swap those with other pieces for red/blue)
I think the final board could be something like
1 heavy, medic per side.
2 sentries per side.
red side has 8 pyros,
blue side has 8 scouts.
red side has 2 demomen,
blue side has 2 soldiers.
Red side has 2 snipers,
blue side has 2 spys (arch rivals
).
This setup would leave out only the engineer, who is inadvertedly represented by his sentries.