Naked Triplet Practice Puzzles

A Naked Triplet is three cells in the same unit that together contain only three candidate digits. Those three digits are locked into those three cells, so they can be removed from every other cell in the unit.

Every puzzle below is verified to feature the Naked Triplet as its hardest required technique — of the 65,284 puzzles in our library, 25,347 require it and 4,795 need nothing harder. New to the pattern? Learn the Naked Triplet or see a worked example first.

Curated Naked Triplet puzzles

  1. Practice puzzle #1 — 24 givens · needs Naked Single, Naked Triplet
  2. Practice puzzle #2 — 24 givens · needs Naked Single, Naked Triplet
  3. Practice puzzle #3 — 24 givens · needs Naked Single, Naked Triplet
  4. Practice puzzle #4 — 25 givens · needs Naked Single, Naked Triplet
  5. Practice puzzle #5 — 23 givens · needs Naked Single, Naked Triplet
  6. Practice puzzle #6 — 26 givens · needs Naked Single, Naked Triplet
  7. Practice puzzle #7 — 24 givens · needs Naked Single, Naked Triplet
  8. Practice puzzle #8 — 23 givens · needs Naked Single, Naked Triplet
  9. Practice puzzle #9 — 27 givens · needs Naked Single, Naked Triplet
  10. Practice puzzle #10 — 25 givens · needs Naked Single, Naked Triplet
  11. Practice puzzle #11 — 25 givens · needs Naked Single, Naked Triplet
  12. Practice puzzle #12 — 25 givens · needs Naked Single, Naked Triplet
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Naked Triplet practice FAQ

How many Sudoku puzzles require the Naked Triplet technique?
Of the 65,284 puzzles in the Precision Sudoku library, 25,347 require the Naked Triplet to solve, and 4,795 can be completed with nothing harder than the Naked Triplet. Every puzzle is verified by a solver that records the exact techniques needed.
What is the best way to practice the Naked Triplet?
Play puzzles where the Naked Triplet is the hardest move required, so every sticking point is an opportunity to apply it. Apply it when pairs are exhausted. Triplets are easy to miss because the three cells need not show identical candidates.
Can I play a Sudoku puzzle that needs exactly the Naked Triplet?
Yes. The curated puzzles on this page all feature the Naked Triplet as their most advanced required technique, and the practice button serves a fresh puzzle from the same verified pool whenever you want another.