Category: Games

Play free Math Sudoku (KenKen) online! Regions with arithmetic operations (+, −, ×, ÷) combine…

Play free Even-Odd Sudoku online! Cells marked as even or odd constrain number placement. Interactive…

Play free Arrow Sudoku online! Numbers along arrows sum to bulb values in this visual-mathematical…

Play free Killer Sudoku online! Cells grouped into cages with sum constraints combine math and…

Play free Roman Numeral Sudoku online! Roman numerals I-IX replace numbers 1-9 with identical logic.…

Play free Color Sudoku online! Nine vibrant colors replace numbers 1-9 with identical logic. Perfect…

Play free Alphabet Sudoku online! Letters A-I replace numbers 1-9 with identical logic. Perfect for…

Play free Diagonal Sudoku (X-Sudoku) online! Both main diagonals must contain 1-9 without repeats. Interactive…

Play free Windoku (Hyper Sudoku) online! Four extra shaded 3×3 regions add 31 total constraints.…

Play free Jigsaw Sudoku online! Irregular shaped regions replace traditional 3×3 boxes for a fresh…