Blue

A daily lateral-thinking mystery. A short, puzzling scene is presented, and up to twenty yes-or-no questions are asked to uncover what really happened. Each story hides several facts that light up when approached and fill in when found, while a notebook stores confirmed answers. Hard mode cuts the budget to twelve questions without hints.

How you play

Deduction

Languages

English

Daily puzzle

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