Abstract: A cryptarithm is a mathematical and logical puzzle in which words form an equation where the letters represent numbers to be determined in a given base. This problem is popular in ...

Abstract: The term CryptArithm: it is a mathematical puzzle which involves the replacement of digits with alphabets, symbols and letters. The art and science of solving CryptArithms is known as ...

Makes portal 2 puzzle layouts and designs according to user settings. Doesn't help you with making your puzzles look good.

Remark for string searching: I want a Perl module going with my note-taking habit, instead of a third-party note-taking software Contact on twitter: @e7_87.

Welcome to The Riddler. Every week, I offer up problems related to the things we hold dear around here: math, logic and probability. Two puzzles are presented each week: the Riddler Express for those ...

Welcome to The Riddler. Every week, I offer up problems related to the things we hold dear around here: math, logic and probability. Two puzzles are presented each week: the Riddler Express for those ...

Playing with arithmetic can lead us to unexpected and profound discoveries that point toward deeper mathematics and sometimes even deeper science. We solved our last Insights puzzle by performing some ...

Twelve “mathletes” from Springfield Plains Elementary won national awards of excellence at the Math Olympiad program. Thirty-eight SPE students were among the nearly 160,000 students worldwide to ...