Sudokus that no one can solve, not only including Sodukus which is very difficult but also that no one trying to solve it.

25-June-2020

- Place a digit from 1 to 9 into each of the empty squares so that each digit appears exactly once in each of the rows, columns and the nine outlined 3x3 regions.
- Apply Classic Sudoku rules. Within each coloured region each digit must appear exactly once.

25-June-2020

- Place a digit from 1 to 9 into each of the empty squares so that each digit appears exactly once in each of the rows, columns and the nine outlined 3x3 regions.
- Apply Classic Sudoku rules. Within each coloured region each digit must appear exactly once.

28-June-2020

- Place a digit from 1 to 9 into each of the empty squares so that each digit appears exactly once in each of the rows, columns and the nine outlined 3x3 regions.
- Digits do not repeat along the marked diagonals.

28-June-2020

- Digits do not repeat along the marked diagonals.

28-June-2020

- Digits do not repeat along the marked diagonals.

28-June-2020

- Digits do not repeat along the marked diagonals.

29-June-2020

- Digits do not repeat along the marked diagonals.

29-June-2020

- Digits do not repeat along the marked diagonals.

29-June-2020

- Apply Classic Sudoku rules. Within each coloured region each digit must appear exactly once.

29-June-2020

- Apply Classic Sudoku rules. Within each coloured region each digit must appear exactly once.

30-June-2020

- Each of the four shaded 3x3 boxes contains each digit from 1 to 9.

30-June-2020

- Each of the four shaded 3x3 boxes contains each digit from 1 to 9.

30-June-2020

- Digits do not repeat along the marked diagonals.

30-June-2020

- Digits do not repeat along the marked diagonals.

30-June-2020

- Arrows and numbers outside gridding means how many different numbers in corresponding direction grid.

30-June-2020

- Arrows and numbers outside gridding means how many different numbers in corresponding direction grid.

30-June-2020

- Apply Classic Sudoku rules. Within each coloured region each digit must appear exactly once.

30-June-2020

- Apply Classic Sudoku rules. Within each coloured region each digit must appear exactly once.

1-July-2020

- Digits do not repeat along the marked diagonals.

1-July-2020

- Digits do not repeat along the marked diagonals.

1-July-2020

- Digits do not repeat along the marked diagonals.

1-July-2020

- Digits do not repeat along the marked diagonals.

1-July-2020

- Digits do not repeat along the marked diagonals.

1-July-2020

- Digits do not repeat along the marked diagonals.

1-July-2020

- Digits do not repeat along the marked diagonals.

1-July-2020

- Digits do not repeat along the marked diagonals.

1-July-2020

- Apply Classic Sudoku rules. Within each coloured region each digit must appear exactly once.

1-July-2020

- Apply Classic Sudoku rules. Within each coloured region each digit must appear exactly once.

2-July-2020

- Arrows and numbers outside gridding means how many different numbers in corresponding direction grid.

2-July-2020

2-July-2020

- Apply Classic Sudoku rules. Within each coloured region each digit must appear exactly once.

2-July-2020

- Apply Classic Sudoku rules. Within each coloured region each digit must appear exactly once.

3-July-2020

- Digits do not repeat along the marked diagonals.

3-July-2020

- Digits do not repeat along the marked diagonals.

3-July-2020

- Digits do not repeat along the marked diagonals.

3-July-2020

- Digits do not repeat along the marked diagonals.

3-July-2020

3-July-2020