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Sudoku

Classic 9x9 Sudoku puzzle with setup and solve modes. Place given numbers in setup mode, then switch to solve mode to complete the puzzle.

Sudoku

Currently: Setting up puzzle
Generate Puzzle
Empty Squares: 30
Easy (20)Hard (60)

Algorithm Visualisation

Watch the backtracking algorithm solve your puzzle step by step!

Global Controls

Fast (10ms)Slow (1000ms)

Basic Backtracking

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Constraint Propagation

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Backtracking + Heuristics

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