New Game: Rondel Chess

Piece types in a rondel, maybe every other one is a pawn? Either play the current piece on the rondel, or place a coin on every skipped type. Collect coins when you play from a space with coins on it. Advance to the next space after your turn.

Rondel could have the sequence P->N->P->B->P->R->P->Q->P->K, so all openings are easy to start. Maybe start with one coin on each space and 5 to each player? Move a coin around the outside to mark the current position.

If you have no legal moves of the current type, you may play any piece and collect coins from the current space. Castling counts as a king move. Use the bishop space to move a queen like a bishop?