Published by on February 6, 2020
Categories: Software

Here are but a few examples of the many Dealmaster screens and printouts . why the Dealmaster Pro bridge simulator program is ideal for Bridge Players. Dealmaster Pro is so extensive in its capabilities that no serious bridge partnership should be without it and it is a must for teachers. You can restrict the dealing.

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True, but my partner is a math major and I am a statistics minor and both of us are suspicious of the non-randomness of the hands so far. Is there another dealing program that will make appease the club members who want a more random hand generation – perhaps similar to the current ACBL tournament hands? After 90 days deamaster 60 deals and hands, most players are not convinced that this program approaches statistical norms.

I must admit that there were more wild distributions, but I don’t really care.

Bridge Simulator & Deal Generator for Bridge Players | Bridge Software

Oh, and the entropy-generators do handle “suspiciously repetitive same key typing” – i. The program seems to function properly most of the time and then can go completely nuts all of a sudden.

No one has proven it cannot. I’m sure if I was playing FreeDoom in another window, it would have gone faster: It did about 22 before it blocked not enough entropyand after that it took about 10, 15 seconds of playing around to get another set. The timing and location of the mouse clicks provide the randomness.

It would really help if someone knowledgeable in computer science took a look at the underlying code. Yes the players still noticed a difference between computer hands and hand shuffled hands. The data is accumulated.

Is there another dealing program that will appease the club members who want a more less random hand generation – perhaps similar to the current ACBL tournament hands? The data shows no bias toward excessive voids or singletons. I suggest that anyone wishing to implement computer generated hands at their club start with a one month control period – where you actually shuffling everything by hand yourself, but tell them they were computer generated.


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Every time DM Pro deals are generated for club play, the user is invited to print a statistical summary. The above mentioned data prove its effectiveness.

Dwalmaster haven’t dealmadter able to obtain an advantage from this yet, but I should be able to in the future.

All platforms have something sane for generating entropy and cryptographically-secure random numbers for seeds and such. Now, any bridge hand generator that doesn’t do the BigBook method of generating hands now is being lazy and by lazy, I mean not reprogramming it. Thanks for the reply.

PrecisionL, on October, In that sample, DM Pro deals were slightly more accurate than BigDeal, but the difference is not significant. If you’re able to control your typing to the microsecond, you’ll be able to influence the RNG though not much, because they also bring in things like “number of free sectors on the disk, system uptime, process id, If the code, on the other hand, uses a good random number generator such as prp Mersenne Twister, I suspect we are seeing artifact of selective memories.

Then let all the superstitious people with selective memory about voids and such come dealmasteer and complain and make fools of themselves before you actually switch.

That ended the controversy. And then the complaints about the number of voids, singletons and 8-card suits started. One well liked program – BIg Deal – is now included in Dealmaster.

DM Pro uses a unique deal generation process. Most shuffle only twice.

Sample Dealmaster Screens and Printouts

Finally, we believe DM Pro can create every possible bridge deal. Given that the number of bridge deals is a little less than 2 96one would need a 96 bit Mersenne Twister. To give just one example, I’ve noticed that there appear quite a lot of series of 5 or 6 hands in which one player picks up the same spot-card.


Community Forum Software by IP. I didn’t look at these hands but the test portion of the report proved that the results were as expected. Try this for abouthands and I think you will find that the match is quite close. You can do the same. I don’t have hard numbers but I am convinced there is a correlation here.

Is it any wonder that hand shuffled hands are flatter with fewer singletons voids and long suits than there should be? Looking at some of the next hands where north did not hold the club 5, I’ve also noticed a very high percentage of hands where north holds an approximate club 5, for example the club 3, 4 or 6. I don’t know how this things work but I remember someone made a deal generator in our federation in the 90’s and the seconds needle from the clock would start the randomness.

In the front end by Kaj Backas, one needs to click a number of times with the mouse.

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Skin and Language Language: BTW, I was also a math major. When four or five thousand deals have been created, there is significant data for an informed judgment re accuracy of the shapes compared to standard expected.

Hanoi5, on October, While most of the hands are random, I’ve also noticed the relatively frequent occurance of non-random hands, or rather, series of non-random hands. I realize that physical security is even now more of a danger than cryptanalysis, but we should be able to see the “set bits” and the BigBook “page” for every hand generated, on the hand records.