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Search Search WWW Search DelphiForFun.org As of October, 2016, Embarcadero is offering a free release of Delphi ( ). There are a few restrictions, but it is a welcome step toward making more programmers aware of the joys of Delphi. They do say 'Offer may be withdrawn at any time', so don't delay if you want to check it out. Please use the to let me know if the link stops working.

BRUTE FORCE AFFILIATE PROGRAM. Make commissions while repping Brute Force by simply sharing the word. Not only can you join our team and help spread the word about your favorite products, you can get rewarded for your efforts. Our system tracks referrals and pays you for every customer who buys from Brute Force through your link.

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Support DFF - Shop If you shop at Amazon anyway, consider using this link. We receive a few cents from each purchase. Thanks Support DFF - Donate If you benefit from the website, in terms of knowledge, entertainment value, or something otherwise useful, consider making a donation via PayPal to help defray the costs.

(No PayPal account necessary to donate via credit card.) Transaction is secure. Mensa Daily Puzzlers For over 15 years Mensa Page-A-Day calendars have provided several puzzles a year for my programming pleasure. Coding 'solvers' is most fun, but many programs also allow user solving, convenient for 'fill in the blanks' type. Alienware alienmorph theme. Below are Amazon links to the two most recent years. (Hint: If you can wait, current year calendars are usually on sale in January.) Contact: Send an e-mail with your comments about this program (or anything else). Spring batch read from file and write to database. Search DelphiForFun.org only Problem Description Brute Force solves a class of problems that can be represented as equations with integer solutions.

The solution must be from a predefined set of integers. As restrictive as that sounds, there a many problems that qualify. Examples: The word arithmetic problems called Alphametics, where each variable is a digit 0.9.

The previously posted only solved addition problems. BruteForce should be able to solve problems with other operations, although I haven't tried any yet. NxN Magic squares have a solution set consisting of the integers 1.N 2. What 3 digit number together with it's square contains all 10 digits? The Bookshelf problem: 'Kristen noticed that if she arranged her 9 volume set of Horse books with volumes 6729 on the top shelf of her bookcase and 13458 on the bottom, the result was a fraction with value 1/2. She started rearranging the books trying to make other fractions (1/3, 1/4, 1/5, 1/6, 1/7, 1/8 and 1/9). Can you help her?'

The 5 Olympic rings overlap to form 9 distinct areas. Write the digits 1.9 in the areas so that the sum of the digits in any ring is 11. Brute Force tries to solve such problems.

Background & Techniques This is kind of a neat program. I wrote it a few years ago when I realized that a large class of problems met the conditions described above. The name reflects the fact that it tries to solve problems by trial and error, or brute force. The puzzle must be represented as a set of equations to be solved use values from a given set of integers. I've learned a bit since then and the code would probably look different if I were to start over, but I'll leave any extensive rewriting for the viewer, or when I run out of other projects. All of the problems tested so far have solutions space of 16 or fewer digits.

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