I thought that that was suicide chess, and loser chess was where you tried to lose every piece except your king.
Losers chess
My favorite loser's chess endgame:
I can't remember how we got there, but I was playing white. I had a pawn on e2, a pawn on g3, and a rook on H1. He had a single pawn on d2. He was feeling pretty good, but it was a trap. I played RH2.
The rest of the game went
d1=N
e3
Nxe3
g4
Nxg4
RH6
NxH6.
A queen or a bishop would have fallen into a similar trap. A rook would have taken me, as I would not have been able to stop him from getting in front of my pawn on a diagonal such as d3 in front of my e2 pawn. I took a chance that he would instinctively go for a weak piece, and he did.
Whats the difference between suicide chess and loser's chess?
In Losers Chess the nomal rules for check and checkmate apply, and you can only play moves that would also be legal in normal Chess. (But you lose when you checkmate your opponent.)
In Suicide Chess there is no royal piece, you can promote to King, and you win by being stalemated (usually because you have no pieces).
The point of Losers chess is to lose all your pieces before the other person does. If a person can take a piece they must take it. The king is not an important piece he can be taken just like any other piece. This was a varient on chesspark.com.