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Difficulty: Medium

Play Medium Sudoku

Medium Sudoku drops the initial given clues down to about 30. This creates the golden standard of Sudoku: it is challenging enough to require real thought and the use of the Notes feature, but forgiving enough to not require extreme theoretical techniques.

Who is this for?

  • Intermediate players who have mastered Easy puzzles.
  • Players looking to practice Pencil Marks / Notes correctly.

What to expect

  • You will likely need to use Voku's Notes mode to track multiple candidate numbers inside empty cells.
  • Relies heavily on "hidden singles" or identifying intersecting blocked rows spanning across 3x3 matrices.
  • Average completion time: 10 to 20 minutes.

Step up the challenge

Jump in, pick "Medium", and take advantage of Voku's smart notes system which intelligently erases pencil marks as you place solid confirmed numbers.

Play Medium Sudoku