Swordfish + X-Wing Sudoku Puzzles

Every puzzle below has Swordfish and X-Wing as its two hardest required moves, verified by a solver — 2,180 of the 65,284 puzzles in our library match. Rusty on either one? Drill them separately first: Swordfish practice · X-Wing 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. An X-Wing is a pattern where a candidate digit appears in only two cells of two different rows, and those cells share the same two columns, forming a rectangle. The digit can then be eliminated from the rest of those two columns.

Curated Swordfish + X-Wing puzzles

  1. Practice puzzle #1 — 24 givens · needs Naked Single, Hidden Single, X-Wing, Swordfish
  2. Practice puzzle #2 — 26 givens · needs Naked Single, Hidden Single, X-Wing, Swordfish
  3. Practice puzzle #3 — 25 givens · needs Naked Single, Hidden Single, X-Wing, Swordfish
  4. Practice puzzle #4 — 25 givens · needs Naked Single, Hidden Single, X-Wing, Swordfish
  5. Practice puzzle #5 — 25 givens · needs Naked Single, Hidden Single, X-Wing, Swordfish
  6. Practice puzzle #6 — 26 givens · needs Naked Single, Hidden Single, X-Wing, Swordfish
  7. Practice puzzle #7 — 24 givens · needs Naked Single, Hidden Single, X-Wing, Swordfish
  8. Practice puzzle #8 — 25 givens · needs Naked Single, Hidden Single, X-Wing, Swordfish
  9. Practice puzzle #9 — 25 givens · needs Naked Single, Hidden Single, X-Wing, Swordfish
  10. Practice puzzle #10 — 26 givens · needs Naked Single, Hidden Single, X-Wing, Swordfish
  11. Practice puzzle #11 — 26 givens · needs Naked Single, Hidden Single, X-Wing, Swordfish
  12. Practice puzzle #12 — 24 givens · needs Naked Single, Hidden Single, X-Wing, Swordfish
Get a fresh Swordfish + X-Wing puzzle →

Swordfish + X-Wing FAQ

How do I practice Swordfish and X-Wing 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 X-Wing?
2,180 puzzles in the Precision Sudoku library have Swordfish and X-Wing as their two hardest required techniques (beyond singles), out of a library of 65,284 solver-verified puzzles.
Should I learn the X-Wing before the Swordfish?
Yes — techniques build on each other, and the X-Wing 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.