Swordfish + Naked Triplet Sudoku Puzzles

Every puzzle below has Swordfish and Naked Triplet as its two hardest required moves, verified by a solver — 2,921 of the 65,284 puzzles in our library match. Rusty on either one? Drill them separately first: Swordfish practice · Naked Triplet practice.

A Swordfish is a pattern where a candidate digit, across three rows, is confined to the same three columns. The digit can then be eliminated from every other cell in those three columns. The row and column roles can be swapped. 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.

Curated Swordfish + Naked Triplet puzzles

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

How do I practice Swordfish and Naked Triplet together?
Play puzzles where those are verifiably the two hardest required moves, so every wall you hit is one of the two patterns you are drilling. Each puzzle on this page was checked by a solver and needs exactly the techniques listed under it.
How many Sudoku puzzles combine Swordfish and Naked Triplet?
2,921 puzzles in the Precision Sudoku library have Swordfish and Naked Triplet as their two hardest required techniques (beyond singles), out of a library of 65,284 solver-verified puzzles.
Should I learn the Naked Triplet before the Swordfish?
Yes — techniques build on each other, and the Naked Triplet appears earlier in the standard learning order. If either pattern is new to you, start with its lesson and walkthrough, then come back and drill them in combination here.