How to Play
Expert Sudoku uses the same rules as standard Sudoku, but the starting grid offers far fewer clues. You will need advanced techniques beyond simple scanning to progress.
Common expert methods include X-Wing, Swordfish, XY-Wing, and coloring. These techniques let you eliminate candidates across multiple rows, columns, and boxes.
Controls
Use pencil marks extensively. Hotkeys for numbers and candidate toggles speed up advanced solving.
Scoring
Expert puzzles reward patience. Time bonuses may be smaller, but completion itself is the real badge of honor.
