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This site presents software and papers about
bridge written by
Joël
Bradmetz
For any comment contact the
author at
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Warning
Antiviruses
engage in strong security competition, some hardly let in any
program that does not come from a certified publisher or can find
imaginary threats qualified differently according to each: "could
be malicious" "could be dangerous" could be
infected" "delete this file", etc. Microsoft
Defender will in principle make no reservations, if other devices
are blocking you you can deactivate them from downloading and
installing programs from this site. They are safe and have worked
without problems on thousands of computers.
ScanSuit is a program for the
universal treatment of a suit at bridge
It is of course very counter-intuitive,
but the problem of handling a simple suit is much more complex
than that of the resolution of an entire deal with opened cards,
due to the need for to drive the calculations in all possible
worlds instead of just one, even if it is much larger.
By
convention, North-South handle the suit. Their cards are visible
by the other players. ScanSuit uses the method of the best
defense and considers that the line East-West is still playing at
perfection. Not only they know the games of North-South but they
also know their strategy. In classic analyzes of handling it is
assumed that North-South always have the necessary entries. There
is no danger in what East-West win intermediate tricks because, if
they come back in suit, that can never get them any further.
A
detailed and illustrated help in pdf format is accessible from the
program.
Cover page of ScanSuit
Free download ScanSuit
ScanDeal
is a program for the exact analysis of any deal or puzzle at
bridge
ScanDeal allows you to scan any
bridge deal. It provides all the contracts for each player,
indicating the best as well as the Par of the deal. It allows a
complete analysis of the game of the cards in providing the exact
solutions himself or leaving playing its user and allowing him to
correct his mistakes that he tells her. It thus gives the
possibility of to analyze any deal and not just prepared deals.
A
detailed and illustrated help in pdf format is accessible from the
program.
Cover page of ScanDeal
Free download ScanDeal
ScanPoints
is a program designed to evaluate points counting systems in
bridge
ScanPoints can generate tens of
thousands of random deals, to estimate the exact contracts that
each line can reach, to link them to a points account in order to
determine the accuracy of this count through its mean and
dispersion values.
ScanPoints offers four classic point
counting systems: SEF, Zar, Kaplan-Rubens and
Charles-Gigault and two free that the user can elaborate at
any time as desired (it is also possible to modify the SEF at
will).
The program allows to edit the values of a points
account in all the contracts and to give an overall comparison of
the six proposed accounts.
A detailed and illustrated help in
pdf format is accessible from the program.
Cover page of ScanPoints
Free download ScanPoints
ScanAlea
determines the probability of a contract being successful
ScanAlea is a software that allows estimating the probability of contract success based on
the generation of a large sample of random hands whose size, shape and strength are determined by the user.
It provides the direct and conditional probabilities of the hands. It allows to solve certain difficult questions that do not always meet with the approval of experts.
We give an example with the article below devoted to hands 4333.
Detailed help, in pdf format, is accessible from the program.
Cover page of ScanAlea
An example
Free download ScanAlea
ScanGame
is a program for the analysis of a bridge competition
During competitions, especially pairs
tournaments, deals are rarely analysed due to lack of time.
Afterwards, a lack of documentation (i.e. when a single copy of
the deals is made) means that a valuable learning opportunity has
not been exploited.
ScanGame has been conceived to
facilitate the analysis a posteriori of all the deals in a
competition.
The principle is simple : deals and result sheets
are captured with an interface designed to avoid errors. The
software then analyses the deals and sends the results by e-mail
to each player. The analysis provides a clear and aesthetic
presentation of the deal, all contracts achievable by each player
with any trump suit, the best contract for each player, the Par
of the deal, and all the correct leads for every contract of the
deal.
A detailed and illustrated help in pdf format is
accessible from the program.
Cover page of ScanGame
Download ScanGame
Demonstration of Minimax and Alpha-Beta algorithm
Cover page of Hypergeo
Program for the computing of the hypergeometric
law
Program
for the full game, auction and card play
Some problem linked to the writing of a bridge
program (in French)
Various
contributions to the study of bridge game
Theory of the play of
a suit at bridge
La psychologie du bridge (in
French)
Automatic treatment of a suit at bridge
Fréquences des mains et des types de mains (in French)
Les honneurs groupés et le moindre choix (in French)
Les places vacantes et la loi hypergéométrique
(in French)
The values of Aces in counting points
Le transfert de l'entame (in French)
Les mains 4333 et les contrats à sans atout (in French)
Les solveurs double
mort et la recherche par partition
(in French)
* Frank, I & Basin, D. (2001). A
theoretical and empirical investigation of search in imperfect
information games.Theoretical Computer Science, 252,
217-256.
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