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
Hand evaluation excess of 3 in the suit; for short suits only clear winner combinations are counted: An Acol strong 2 of a suit opening bid is made on 8 playing tricks (Landy 1998) This statistically derived method for evaluating Contract Bridge hands was developed by Zar Petkov. It attempts to account for many of the factors outlined above in a numerical way. A key differentiator between the bidding effectiveness of experts versus laymen is the use of hand visualisation during all stages of bidding. In his book "The Secrets of Winning Bridge", Jeff Rubens advises to focus on just a few