Put your logic skills to the test in this classic number puzzle experience. Your objective is simple yet addictive: fill the grid with the numbers 1–9, making sure no number is repeated in any row or column. Each puzzle offers a fresh challenge, rewarding careful thought and smart planning. Move around the grid, select empty cells, and choose the correct number to place. Play continues until the board is completely filled and the puzzle is solved. If you find yourself stuck, an optional Hint system is available to help guide you in the right direction without giving away the entire solution. Helpful Tools The game includes several tools designed to make solving puzzles intuitive and enjoyable: • Pencil Tool – Make pencil marks in a cell to jot down possible numbers and narrow your options. Pencil marks are not counted as final answers. • Eraser Tool – Remove a number if you later realise it’s incorrect. • Undo Function – Undo one or more moves at any time. The game timer will continue running, keeping the challenge intact. Difficulty Settings Choose from four difficulty levels to match your skill level: • Easy • Medium • Hard • Extreme Beginner Mode allows unlimited mistakes, making it perfect for newcomers or relaxed play. In Normal Mode, only a limited number of errors are allowed—make too many, and it’s Game Over! Daily Challenges Take on the Daily Challenge and compete against players from around the world. Solve the same puzzle as everyone else and race to achieve the fastest completion time. Progression Each difficulty level contains a set number of puzzles. Complete them all to conquer that difficulty and prove your mastery. Leaderboards Track your performance and climb the rankings with global and friend leaderboards, based on both progression and completion times. A perfect blend of relaxation and challenge, this number puzzle game is ideal for short sessions or long stretches of focused play—anytime, anywhere.