C-Chess (Camaratta-Chess) is another adaptation of Capablanca's original idea which leverages off the invention of GM Yasser Seirawan and Bruce Harper. Like Sharper Chess, it retains the 8 x 8 chessboard. It is played exactly like Standard chess and retains the same basic rules and concepts of play. The two new pieces, Archbishop (moves like a Bishop and Knight) and Chancellor (moves like a Rook and Knight) are held "in-hand."

The major difference between C-Chess and Sharper Chess is that anytime during the game, either piece held “in-hand” can be placed on ANY open square on the players first rank. That constitutes the player's entire move.  Effectively, on his turn, the player can either make a move with any of his chessmen that are still on the board, or he can drop, but not both at the same time (you can't move, then drop on the same play).

The only restriction is that a player may not drop while in check (in other words, you can't use the drop to block a check), nor can you drop one of the pieces "in-hand" in such a manner that it places your opponent in check. Obviously, both of these rules are fluid and players can agree to suspend either or both rules. 

In valuing the chessmen, the Archbishop is valued at 7.0, maybe slightly more, and the Chancellor at 8.5. (The Queen is 9.0 and the Pawn is 1.0 for reference).