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.

Which number must be inserted in place of the incorrect number? Show puzzle solution The number 75 must be replaced by the number 74. The numbers in the table are each the product of two prime ...

Brain benefits: Just like normal math ... order to count it. Sudoku puzzles consist of a grid of squares with nine columns ...

A computer made from DNA that can solve basic chess and sudoku puzzles could one day ... DNA devices have a number of potential advantages, such as being able to safely store vast amounts of ...

Maki Kaji, pictured here in 2007, is credited as popularising the Sudoku puzzle game Maki Kaji, the Japanese man known as the "Godfather of Sudoku", has died at the age of 69. Kaji gave the number ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.

TOKYO (AP) — Maki Kaji, the creator of the popular numbers puzzle Sudoku whose ... characters for “number” and “single,” and players place the numbers 1 through 9 in rows, columns ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.

Some people solve the New York Times crossword or sit down to a thousand-piece jigsaw puzzle as a fun and relaxing way to ...

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.