Rex Bridge is likely to become the contract, the valuation of the hand is again counted according to the Contract Bridge practice. A second major difference is the possibility to bid at level 8 and 9. This may seem awkward, as it would take 14 or more tricks to make a contract at level 8 or higher. Even if the declarer takes all 13 tricks, he will still incur a one trick penalty. However, the payment for a made grand slam can still outweigh several doubled penalties. How many depends on vulnerable or not. Consciously bidding higher than what the cards says
Bridge scoring essential to understanding bridge scoring: Bridge scoring consists of nine elements. Not all elements are included in all game variants and the method of accumulation of the elements over several deals varies. If the contract is made, the score for each such deal consists of: If the contract is defeated, the defenders receive In rubber bridge only, In duplicate bridge only, Contract points are awarded for each odd trick bid and made. Their values depend on the suit (or notrump) and whether the contract is doubled or redoubled; they are not affected by vulnerability. Tricks won beyond that necessary to