Sudoku Solver
Watch a backtracking algorithm solve Sudoku puzzles step by step. Visualize how the solver tries, backtracks, and finds the solution.
Created by vansh-codes
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How to Use
This tool visualizes how a computer solves Sudoku puzzles using the backtracking algorithm. Watch as it automatically fills in numbers and backtracks when it hits dead ends. • Click cells and type numbers 1-9 to manually enter puzzle clues • Use "Generate Board" to create a random puzzle automatically • Click "Solve" to watch the algorithm solve the puzzle step-by-step • Select solving speed from the Speed dropdown menu (Fast, Medium, Slow) • "Clear" removes all numbers from the grid • The algorithm tries numbers in empty cells, highlights attempts in real-time, and backtracks when it finds conflicts • Fireworks appear when the puzzle is solved • In "Slow" mode, you can see detailed explanations of each solving step • Only valid Sudoku numbers (1-9) are accepted in cells • The grid follows standard Sudoku rules: each row, column, and 3x3 box must contain digits 1-9 exactly once