Riddle of the Day

One logic puzzle or riddle is published each day, for example reasoning about ants walking along a stick. Answers are typed freely and checked, with a hint and a full worked explanation available. A calendar and topic archive give access to earlier riddles. Available in English and Spanish.

How you play

Deduction

Languages

English, Spanish

Daily puzzle

Yes

Unlimited mode

No

Archive

Yes

• 8.4
  Queens

  Place one crown in every row, column and region
  Play
• 8.1
  Murdle

  Deduce the killer, weapon, place and motive
  Play
• 7.9
  Clues By Sam

  Deduce which suspects are criminals or innocent
  Play
• 7.9
  Pips

  Place dominoes to satisfy region conditions
  Play
• 7.7
  Tango

  Balance suns and moons across a grid
  Play
• 7.6
  Zip

  Draw one path through numbers in order
  Play
• 7.4
  Patches

  Divide a grid into shapes from clues
  Play
• 7.3
  Sudoku.com

  Solve sudoku grids from easy to expert
  Play