Welcome to our puzzle section, with online games you can play anywhere! We are excited to present old favorites, like our Daily Crossword and Daily Sudoku, and recently added Word Searches.

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. Select ...

Unlike previous DNA computers, the data can be erased and replaced like memory on classical computers to solve multiple ...

A computer made from DNA that can solve basic chess and sudoku puzzles could one day, if scaled up, save vast amounts of energy over traditional computers when it comes to tasks like training ...

Test your mettle with this puzzle created exclusively for "Smithsonian" readers Test your mettle with this puzzle created exclusively for 'Smithsonian' readers Test your mettle with this puzzle ...

For billions of years, DNA has quietly carried the blueprints for all life on Earth, encoding instructions for everything ...

Since then we have created Connections and Strands. We strive to offer puzzles for all skill levels that everyone can enjoy playing every day. Subscribe now for unlimited access.

Known as the “Godfather of Sudoku,” Kaji created the puzzle to be easy for children and others who didn’t want to think too hard. Its name is made up of the Japanese characters for “number ...

The mathematician Daniel Litt has driven social media users to distraction with a series of simple-seeming but counterintuitive probability puzzles. In late January ... Why do you think these kinds of ...

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. Select ...

Since then we have created Connections and Strands. We strive to offer puzzles for all skill levels that everyone can enjoy playing every day. Subscribe now for unlimited access.