The World Sudoku Championships start on Monday, with competitors from 31 countries set to spend 28 hours solving the toughest ...

Fast web-based Sudoku solver. Supports many variants including all grid sizes up to 16x16.

As an example of Excel's strength, a Reddit user even made a Sudoku solver using just Excel, and how it works is magnificent. Transform your data into insights by harnessing the power of pivot tables ...

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You can probably think of a time when you've used math to solve an everyday problem, such as calculating a tip at a ...

Applied mathematicians have to find a balance between models that are realistic enough to be useful and simple enough to be ...

Connections is a New York Times word game that's all about finding the "common threads between words." How to solve the ...