Expert Sudoku for Monday, January 26, 2026

About This Expert Sudoku Puzzle

This expert difficulty Sudoku puzzle for Monday, January 26, 2026 starts with 25 given numbers. This is our most challenging level, requiring master techniques such as X-Wing, Swordfish, and complex chain analysis.

How to Solve This Puzzle

Click any empty cell and enter a number from 1-9. Use logic to determine which numbers can fit in each cell based on the Sudoku rules: no repeating numbers in any row, column, or 3x3 box.

Keyboard Shortcuts

• 1-9: Enter number in selected cell
• Arrow Keys: Navigate between cells
• Backspace/Delete: Clear selected cell

Tips for Expert Puzzles

• Master the X-Wing pattern for row and column elimination
• Apply Swordfish when X-Wing doesn't work
• Use Y-Wing for complex chain eliminations
• See our advanced guide: X-Wing technique