- 北極数独 - is a clean, focused Sudoku app that offers daily puzzles and multiple difficulty levels for casual and experienced players.
Fill each 9x9 grid so every row, column and 3x3 block contains the numbers 1 to 9. Use notes to pencil candidates, request a hint for guidance, and undo or reset moves as needed. - 北極数独 - is designed for a calm, distraction-free solving experience.
