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Today Sudoku contains very many types of variant Sudoku, more types of Sudoku puzzles are still under continuous development, please continue to pay attention to Sudoku today.

Today's Sudoku

Consecutive Sudoku

• 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.
• There are some dots between cells. The numbers on each side of a dot must always be consecutive. Not all possible dots are marked.

Consecutive Sudoku

• 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.
• There are some dots between cells. The numbers on each side of a dot must always be consecutive. Not all possible dots are marked.

Differences Sudoku

• 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.
• A number between two cells indicates the difference of the numbers in these cells. A number between four cells indicates the difference between two diagonally adjacent cells, either top left + right bottom (\) or top right + bottom left (/). If one of the characters < or > is specified the apex of the angle points to the smaller of these numbers.

Differences Sudoku

• 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.
• A number between two cells indicates the difference of the numbers in these cells. A number between four cells indicates the difference between two diagonally adjacent cells, either top left + right bottom (\) or top right + bottom left (/). If one of the characters < or > is specified the apex of the angle points to the smaller of these numbers.

Staircase Sudoku

• 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.
• Rows and columns span across the gaps in the diagram.

Staircase Sudoku

• 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.
• Rows and columns span across the gaps in the diagram.

MiniMax Sudoku

• 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.
• A number at the edge of the diagram indicates the sum of the highest and the lowest number in the first three cells in the corresponding row or column.

MiniMax Sudoku

• 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.
• A number at the edge of the diagram indicates the sum of the highest and the lowest number in the first three cells in the corresponding row or column.

Sums Sudoku

• 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.
• A number between two cells indicates the sum of the numbers in these cells. A number between four cells indicates the sum between two diagonally adjacent cells, either top left + right bottom (\) or top right + bottom left (/).

Sums Sudoku

• 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.
• A number between two cells indicates the sum of the numbers in these cells. A number between four cells indicates the sum between two diagonally adjacent cells, either top left + right bottom (\) or top right + bottom left (/).

Multi Diagonal Sudoku

• 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.

Multi Diagonal Sudoku

• 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.

Count different Sudoku

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

Count different Sudoku

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

Fortress Sudoku

• 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.
• If a shaded cell and a white cell are adjacent then the digit in the shaded cell is greater.

Fortress Sudoku

• 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.
• If a shaded cell and a white cell are adjacent then the digit in the shaded cell is greater.

Group Sum Sudoku

• 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.
• Each number at the intersection of four cells is the sum of digits in those four cells.

Group Sum Sudoku

• 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.
• Each number at the intersection of four cells is the sum of digits in those four cells.

Mirror Sudoku

• 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.
• The four corner boxes contain the same digit in symmetric positions about the centre.

Mirror Sudoku

• 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.
• The four corner boxes contain the same digit in symmetric positions about the centre.

Extra Regions Sudoku

• 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.
• The connected shaded cells contain each digit from 1 to 9.

Extra Regions Sudoku

• 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.
• The connected shaded cells contain each digit from 1 to 9.

Sum Frame Sudoku

• 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 outside the grid indicate the sum of the first 3 digits in the corresponding direction.

Sum Frame Sudoku

• 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 outside the grid indicate the sum of the first 3 digits in the corresponding direction.

Count different Sudoku

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

Count different Sudoku

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

Multi Diagonal Sudoku

• 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.

Multi Diagonal Sudoku

• 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.

Hybrid Sudoku ( X Sums + Greater Than )

• 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.
• Each number outside the grid is the sum of the first X numbers placed in the corresponding direction, where X is equal to the first number placed in that direction.
• Digits have to be place in accordance with the “greater than” signs.

Hybrid Sudoku ( X Sums + Greater Than )

• 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.
• Each number outside the grid is the sum of the first X numbers placed in the corresponding direction, where X is equal to the first number placed in that direction.
• Digits have to be place in accordance with the “greater than” signs.

Non-Consecutive Sudoku

• 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 in adjacent cells cannot be consecutive.

Non-Consecutive Sudoku

• 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 in adjacent cells cannot be consecutive.

No Touch Sudoku

• 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.
• Identical digits do not touch each other diagonally.

No Touch Sudoku

• 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.
• Identical digits do not touch each other diagonally.

Extra Regions Sudoku

• 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.
• The connected shaded cells contain each digit from 1 to 9.

Extra Regions Sudoku

• 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.
• The connected shaded cells contain each digit from 1 to 9.

Extra Regions Sudoku

• 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.
• The connected shaded cells contain each digit from 1 to 9.

Extra Regions Sudoku

• 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.
• The connected shaded cells contain each digit from 1 to 9.

Answer 8 sudoku

• 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.
• A dot between two cells indicates that the result of at least one of the basic operations (addition, subtraction, multiplication, division) of the numbers in these two cells is 8. Is the dot missing, no one of the basic operations results in an 8.

Answer 8 sudoku

• 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.
• A dot between two cells indicates that the result of at least one of the basic operations (addition, subtraction, multiplication, division) of the numbers in these two cells is 8. Is the dot missing, no one of the basic operations results in an 8.