It is described elsewhere in the Chess Variant Pages . 0 is the Zero. W is the Wazir. C is the Camel. B is a Bishop that can move only six squares maximum.
R is a Rook that can move only six squares maximum.
In Ralph Betza's notation for pieces , this would be considered to be N3. For example, the N3 on a1 could go to d7 if there were no pieces on b3 and c5. Q is a Queen that can go only five squares maximum. In addition, it has the ability to move to e3 or g3 from f1. In Betza's notation, this would be considered to be K5ffN. K is the King.