Expert Sudoku
Loading a new puzzle...
Expert puzzles are for serious sudoku enthusiasts. You must recognize complex patterns and combine multiple techniques.
Starting numbers
24-27 numbers
Average solve time
45-90 minutes
Suitable for
Advanced puzzlers
Required techniques
X-Wing, Swordfish, XY-Wing
Tips for this level
Learn the X-Wing and Swordfish techniques. These patterns help eliminate candidates across multiple rows or columns.