New Feature: Along with the percentage
of hands that will be set and the average number of
tricks to be taken with each possible opening lead, Lead
Captain now shows the probability of each card being a
double dummy-perfect lead. Thank you Stephen in
California for this idea.
The Compare Bids tab now shows results vs. the
Par score as well as the Results vs. the "A Contract".
Starting random number now varies with each
start of the program. Print bug fixed.
The Compare Bid tab was incorrectly using the
"X if-2" selection from the Invite Bid tab. Also
includes a few new Chinese translations. Thank you Li.
Corrected problems with European decimal
Translations for Chinese and Dutch. Thank you
Peter and Ton.
Lead Captain is two programs
Click for more info
Lead Captain generates
millions of totally random hands to find hands that fit
your criteria, then uses double dummy analysis to
determine the results of those hands. The better you have
defined the hand patterns that fit your problem, the
better your results. Generally 2,000 or more hands are
needed to obtain statistically meaningful answers. Whether
you are trying to answer an opening
question or a
, the general procedure with Lead
Captain is the same:
- Fill in all 13 cards for the South hand. In bidding
decisions, you can also define a pattern for South in
lieu of all 13 cards.
- Define the other three hands. Up to 50 different
patterns are allowed for each hand.
- Fill in the desired number of deals in your study.
- Click the Leads or the Create Deals button.
When you click the Create Deals button, Lead Captain
shuffles, deals, and then determines if the criteria
you've set for all hands have been met. If not, the
cards are randomly shuffled again and the resulting deal
If the deal meets all hand definitions Lead Captain
then uses Bo Haglund's double dummy engine to determine
the optimum double dummy result, stores that information
for subsequent reporting, and then returns to shuffle
the cards once again.
In a simple test, Lead Captain my shuffle the deck one
million times to find 5,000 hands that fit your
definitions. Depending on the number of patterns to be
tested, it takes approximately 10 seconds for Lead
Captain to shuffle and deal 1 million hands. It takes
the double dummy engine roughly two minutes to make it's
calculations on those 5,000 hands.
Download the Lead
Captain help file for a more detailed description
of the latest version of the program, and all its