Medium Sudoku Puzzles

A puzzle is rated Medium here when its hardest required technique is Naked Pair, Omission, Naked Triplet or Hidden Pair — verified by a solver, not guessed from a star rating. 19,657 of the 65,284 puzzles in our library are rated Medium. How our difficulty ratings work.

Medium puzzles are where pencil marks start to matter. Singles will stall partway through, and you will need candidate eliminations — a Naked Pair, an Omission, a Naked Triplet, or a Hidden Pair — to break the position open before singles finish the grid.

Play medium puzzles

  1. Medium puzzle #1 — 26 givens · needs Naked Single, Hidden Single, Naked Pair
  2. Medium puzzle #2 — 24 givens · needs Naked Single, Hidden Single, Omission
  3. Medium puzzle #3 — 24 givens · needs Naked Single, Omission, Naked Triplet
  4. Medium puzzle #4 — 24 givens · needs Naked Single, Hidden Single, Naked Pair, Omission, Naked Triplet, Hidden Pair
  5. Medium puzzle #5 — 26 givens · needs Naked Single, Hidden Single, Naked Pair
  6. Medium puzzle #6 — 24 givens · needs Naked Single, Hidden Single, Omission
  7. Medium puzzle #7 — 24 givens · needs Naked Single, Hidden Single, Naked Pair, Omission, Naked Triplet
  8. Medium puzzle #8 — 25 givens · needs Naked Single, Hidden Single, Hidden Pair
  9. Medium puzzle #9 — 24 givens · needs Naked Single, Hidden Single, Naked Pair
  10. Medium puzzle #10 — 24 givens · needs Naked Single, Hidden Single, Omission
  11. Medium puzzle #11 — 26 givens · needs Naked Single, Omission, Naked Triplet
  12. Medium puzzle #12 — 25 givens · needs Naked Single, Hidden Single, Naked Triplet, Hidden Pair
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Medium Sudoku FAQ

What makes a Sudoku puzzle medium?
On Precision Sudoku, difficulty is defined by the hardest technique a puzzle actually requires, verified by a solver — not by a vague star rating. A puzzle is rated Medium when the hardest move it needs is Naked Pair, Omission, Naked Triplet, Hidden Pair.
How many medium Sudoku puzzles are there on Precision Sudoku?
19,657 of the 65,284 verified puzzles in the Precision Sudoku library are rated Medium, meaning their hardest required technique is Naked Pair, Omission, Naked Triplet, Hidden Pair.
What techniques do I need to solve a medium Sudoku?
Medium puzzles are where pencil marks start to matter. Singles will stall partway through, and you will need candidate eliminations — a Naked Pair, an Omission, a Naked Triplet, or a Hidden Pair — to break the position open before singles finish the grid.