Practice: X-Wing Sudoku Technique

Ready to put the X-Wing technique into action? This page is designed for you to practice and master X-Wing patterns with real Sudoku puzzles.

Quick Reminder: What is an X-Wing?

An X-Wing occurs when a candidate number appears in exactly two cells in two different rows (or columns), and those cells line up in the same columns (or rows). When you spot an X-Wing, you can eliminate that candidate from all other cells in those columns (or rows).

Want a full step-by-step guide? Read the X-Wing Technique article

How to Practice

  1. Scan the grid for a candidate that appears in exactly two cells in two different rows (or columns), aligned in the same columns (or rows).
  2. Eliminate that candidate from all other cells in those columns (or rows).
  3. Use these eliminations to unlock more singles and progress in the puzzle.

Start Practicing

Try the puzzles below and focus on finding and applying X-Wing patterns. The more you practice, the easier it will be to spot this advanced technique in any Sudoku!