To solve your puzzle, enter the initial values from your puzzle into the grid below. Then, click and hold down "Solve." Puzzle solver developed by Mark Huckvale at University College London.

As per the Phistomefel Ring principle, the 16 squares that circle the central 3 x 3 square will always contain the same ...

Without a good answer to his query he went ahead and built this Sudoku game using 81 Nixie tubes ... He’s even written a recursive solver which can be seen in the video after the break.

Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers.

A classic number puzzle game that improves problem-solving skills and logical thinking. Sudoku involves placing numbers in a 9x9 grid in such a way that every row, column, and 3x3 box contains ...

Find answers to the latest online sudoku and crossword puzzles that were published in USA TODAY Network's local newspapers.

After writing a mathematical problem to represent a situation, the second step in the modeling process is to solve the problem. For Sudoku, we need to solve a collection of equations with 81 ...

You can probably think of a time when you’ve used math to solve an everyday problem ... As an example, we could represent a game of sudoku as a mathematical model. In sudoku, the player fills ...

You can now play a range of puzzles on our site, from sudoku to crosswords, every weekday. The puzzles will update every weekday at midnight so make sure you bookmark the links to play.

In the Ridulph case, there was no DNA, no confession by the killer. This mystery was solved by circumstantial evidence amassed over four years by bulldog cops and other outsiders who came to ...