Login
Join
Logout
Login
Join
Logout
Samurai Sudoku
Classic Sudoku
Today's Sudoku
Archives
Daily Sudoku
Sudokus with no one can solve
Flower Sudoku
Butterfly Sudoku
Samurai Sudoku
Windmill Sudoku
Triple Doku
Gattai-3
Cross Sudoku
Twodoku
Sohei Sudoku
W Sudoku
Clueless Sudoku 1
Clueless Sudoku 2
Twin Corresponding Sudoku
You can now create a Today Sudoku account! Save partially completed questions, switch between devices, track your progress through archives, and record your puzzles solving time.
Join
Join
This site ensures that all the sudoku puzzles provided have a unique solution. If you find a problem with multiple solutions, please pay attention to the additional rules of the puzzle.
Sudokus that no one can solve
Sudokus that no one can solve, not only including Sodukus which is very difficult but also that no one trying to solve it.
Clueless Sudoku 2
11-September-2023
- Clueless Sudoku is made up with nine nonoverlap 9*9 Sudokus.The 10th 9*9 Sudoku is hidden in the topic and marked with dark gray grids.
Clueless Sudoku 2
11-September-2023
- Clueless Sudoku is made up with nine nonoverlap 9*9 Sudokus.The 10th 9*9 Sudoku is hidden in the topic and marked with dark gray grids.
Clueless Sudoku 2
28-October-2023
- Clueless Sudoku is made up with nine nonoverlap 9*9 Sudokus.The 10th 9*9 Sudoku is hidden in the topic and marked with dark gray grids.
Clueless Sudoku 2
28-October-2023
- Clueless Sudoku is made up with nine nonoverlap 9*9 Sudokus.The 10th 9*9 Sudoku is hidden in the topic and marked with dark gray grids.
Twin Corresponding Sudoku
7-November-2023
- Twin Corresponding Sudoku consists of a pair of standard sudoku puzzles each with some starting digits. To get a complete solution for the twin puzzles, it is necessary to solve each twin puzzle, but the complete solution of the twin puzzles will be obtained by substituting the corresponding values of the digits from one twin sudoku into the other.
Twin Corresponding Sudoku
7-November-2023
- Twin Corresponding Sudoku consists of a pair of standard sudoku puzzles each with some starting digits. To get a complete solution for the twin puzzles, it is necessary to solve each twin puzzle, but the complete solution of the twin puzzles will be obtained by substituting the corresponding values of the digits from one twin sudoku into the other.
Clueless Sudoku 1
5-January-2024
- Clueless Sudoku is made up with nine nonoverlap 9*9 Sudokus.The 10th 9*9 Sudoku is hidden in the topic and marked with dark gray grids.
Clueless Sudoku 1
5-January-2024
- Clueless Sudoku is made up with nine nonoverlap 9*9 Sudokus.The 10th 9*9 Sudoku is hidden in the topic and marked with dark gray grids.
Cross Sudoku
30-January-2024
- Cross Sudoku has five merged grids. The numbers must be placed correctly for all the five puzzle squares.
Cross Sudoku
30-January-2024
- Cross Sudoku has five merged grids. The numbers must be placed correctly for all the five puzzle squares.
Clueless Sudoku 2
5-February-2024
- Clueless Sudoku is made up with nine nonoverlap 9*9 Sudokus.The 10th 9*9 Sudoku is hidden in the topic and marked with dark gray grids.
Clueless Sudoku 2
5-February-2024
- Clueless Sudoku is made up with nine nonoverlap 9*9 Sudokus.The 10th 9*9 Sudoku is hidden in the topic and marked with dark gray grids.
Clueless Sudoku 2
27-February-2024
- Clueless Sudoku is made up with nine nonoverlap 9*9 Sudokus.The 10th 9*9 Sudoku is hidden in the topic and marked with dark gray grids.
Clueless Sudoku 2
27-February-2024
- Clueless Sudoku is made up with nine nonoverlap 9*9 Sudokus.The 10th 9*9 Sudoku is hidden in the topic and marked with dark gray grids.
Sohei Sudoku
16-March-2024
- Named for the warrior monks of medieval Japan, Sohei Sudoku has four merged grids. Each grid has two overlapping areas.
Sohei Sudoku
16-March-2024
- Named for the warrior monks of medieval Japan, Sohei Sudoku has four merged grids. Each grid has two overlapping areas.
Twodoku
26-May-2024
- Twodoku consists of two grids 9 x 9. The numbers must be placed correctly for both puzzle squares.
Twodoku
26-May-2024
- Twodoku consists of two grids 9 x 9. The numbers must be placed correctly for both puzzle squares.
Cross Sudoku
26-May-2024
- Cross Sudoku has five merged grids. The numbers must be placed correctly for all the five puzzle squares.
Cross Sudoku
26-May-2024
- Cross Sudoku has five merged grids. The numbers must be placed correctly for all the five puzzle squares.
Twin Corresponding Sudoku
26-May-2024
- Twin Corresponding Sudoku consists of a pair of standard sudoku puzzles each with some starting digits. To get a complete solution for the twin puzzles, it is necessary to solve each twin puzzle, but the complete solution of the twin puzzles will be obtained by substituting the corresponding values of the digits from one twin sudoku into the other.
Twin Corresponding Sudoku
26-May-2024
- Twin Corresponding Sudoku consists of a pair of standard sudoku puzzles each with some starting digits. To get a complete solution for the twin puzzles, it is necessary to solve each twin puzzle, but the complete solution of the twin puzzles will be obtained by substituting the corresponding values of the digits from one twin sudoku into the other.
