Sudoku

SUDOKU

SOLVER

PLAY, SOLVE, AND LEARN

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Sudoku Help

Sudoku Tips

Each row, column, and 3×3 box must contain numbers 1-9 without repeats
Start with the most filled rows or columns
Use pencil marks to track possible numbers
Look for 'naked singles' (cells with only one possible number)
If stuck, take a step back and re-evaluate

Solving Strategies

Elimination Technique

Remove numbers that can't go in a cell based on existing numbers in the row, column, and box.

Pencil Marking

Systematically mark possible numbers in each empty cell to narrow down solutions.

About Sudoku

Sudoku is a logic-based number-placement puzzle that challenges your problem-solving skills.

Game Rules

Fill a 9×9 grid with digits
Each column must contain numbers 1-9 without repetition
Each row must contain numbers 1-9 without repetition
Each of the nine 3×3 sub-boxes must contain numbers 1-9 without repetition

Algorithms Used

Choose an algorithm to learn more

Backtracking

Backtracking is a general algorithm for finding solutions to some constraint satisfaction problems, notably puzzles like Sudoku. The algorithm incrementally builds candidates for solutions and abandons a candidate (backtracks) as soon as it determines that the candidate cannot lead to a valid solution.

Heuristic Algorithms

Heuristic algorithms use practical techniques to find satisfactory solutions. For Sudoku, heuristics like the 'minimum remaining values' (MRV) strategy can be used, which selects the empty cell with the fewest legal values left. This approach can significantly reduce the time to solve the puzzle.

Project Creators

Apekshya Bhattarai
Salina Nakarmi
Pooja Pathak
Safal N. Shrestha
Dinisha Uprety

Challenge yourself and improve your logical thinking!