Hard Sudoku
Hard Sudoku #9
Sparse grids designed for deeper note work and more careful solving. Use notes to track candidates, clear cells when a line of logic breaks, and move to the next puzzle when you finish.
Time
00:00
Mistakes
0
Mode
Fill
Controls
Use the keypad or your keyboard. Press N to toggle notes mode.
Arrow keys move the current selection, and Backspace clears an editable cell.