What's New - July, 2014
July 13, 2014:
StarsOnAGrid implements solving and allowing users to create, modify and solve puzzles of the type defined as follows::
Given a square N x N grid divided into N sections, place a star in each section with no two stars in the same column or row, and no two stars diagonally adjacent to each other.
The program allows grid sizes from 2x2 through 10x10, although no solutions
exist for sizes less than 5x5.
July 23, 2014: Feedback from the May posting of our Logic Solver program and an unsolved Geocaching problem led to Logic Version 5.4 posted today. Bug fixes include:
July 28, 2013:
Our "Brain Games" daily calendar puzzles are usually pretty good, but the author of this one thinks that "Cyclist" is the only answer. Writing a program seemed more fun than simply turning the calendar page over find the solution. A 50 line beginner's level program performing a search of our 62,000 word dictionary finds the solution quickly - all 211 of them! Boy, did the Brain Game guy get this one wrong! Check out Word Search, the latest addition at the bottom of the Beginner's page.
July 29, 2014:
Expressions From Integers Version 2 adds an extended version of the original puzzle. This one has multiple completed input figures and a single target figure with one value missing. The strategy for this one is to find an single expression template which will evaluate to the number position containing the "?". The same value positions and operations applied in the same order for each figure must equal the value in the "?" position for that figure. The successful template when applied to the incomplete figure will provide the required value.
Another puzzle programming exercise from my favorite source: the
Mensa Puzzle-A-Day Calendar.