X-Wing + Omission Sudoku Puzzles

Every puzzle below has X-Wing and Omission as its two hardest required moves, verified by a solver — 2,919 of the 65,284 puzzles in our library match. Rusty on either one? Drill them separately first: X-Wing practice · Omission practice.

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. Omission, also called Locked Candidates, occurs when a digit's only possible cells in a box all lie in one row or column (or its only cells in a row or column all lie in one box). The digit can then be eliminated from the rest of that line or box.

Curated X-Wing + Omission puzzles

  1. Practice puzzle #1 — 25 givens · needs Naked Single, Hidden Single, Omission, X-Wing
  2. Practice puzzle #2 — 25 givens · needs Naked Single, Hidden Single, Omission, X-Wing
  3. Practice puzzle #3 — 24 givens · needs Naked Single, Hidden Single, Omission, X-Wing
  4. Practice puzzle #4 — 25 givens · needs Naked Single, Hidden Single, Omission, X-Wing
  5. Practice puzzle #5 — 26 givens · needs Naked Single, Hidden Single, Omission, X-Wing
  6. Practice puzzle #6 — 24 givens · needs Naked Single, Hidden Single, Omission, X-Wing
  7. Practice puzzle #7 — 26 givens · needs Naked Single, Hidden Single, Omission, X-Wing
  8. Practice puzzle #8 — 26 givens · needs Naked Single, Hidden Single, Omission, X-Wing
  9. Practice puzzle #9 — 23 givens · needs Naked Single, Hidden Single, Omission, X-Wing
  10. Practice puzzle #10 — 26 givens · needs Naked Single, Hidden Single, Omission, X-Wing
  11. Practice puzzle #11 — 23 givens · needs Naked Single, Hidden Single, Omission, X-Wing
  12. Practice puzzle #12 — 26 givens · needs Naked Single, Hidden Single, Omission, X-Wing
Get a fresh X-Wing + Omission puzzle →

X-Wing + Omission FAQ

How do I practice X-Wing and Omission 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 X-Wing and Omission?
2,919 puzzles in the Precision Sudoku library have X-Wing and Omission as their two hardest required techniques (beyond singles), out of a library of 65,284 solver-verified puzzles.
Should I learn the Omission before the X-Wing?
Yes — techniques build on each other, and the Omission 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.