Killer sudoku is similar to the other levels in that each of the numbers 1-9 must fit into each 9-by-9 square. No number can ...

FT.com will bring you the crossword from Monday to Saturday as well as the Weekend FT Polymath.

I have no idea how the author came up with all of this creativeness! You can Murdle solo or with friends. I look forward to ...

Below are the clues and hints for today’s Wordle answer. Plus, find the answer to puzzle #1379 at the bottom. This word is an adjective and interjection. This word is also the name of a childhood ...

Mathematicians struggled to find the fewest number of pieces needed to cut an equilateral triangle and rearrange it into a ...

Now, more than 122 years after it was first proposed, Kamata and two other mathematicians have finally proved that a solution ...

The Black creators of some consumers products are rethinking their business plans as major U.S. companies end or water down ...

Solve the math puzzle from our April 2025 issue. In honor of April Fools’ Day, we offer the puzzling case of the Lesser Fool.

Mathematical puzzles like these continue to engage people on social media because they test logical reasoning skills in ...