PUZZLE NO. 57 : EVEN SUDOKU

RULES : Classic sudoku rules apply. Additionally, cells having grey squares will contain only even digits.

PUZZLE NO. 56 : ODD EVEN SUDOKU

RULES : Classic sudoku rules apply. Additionally , cells having grey circles will contain only odd digits . Cells having grey squares will contain only even digits.

PUZZLE NO. 55 : EXPANDED SUDOKU

RULES : Classic sudoku rules apply. There are some gaps in the grid.

PUZZLE NO. 54 : ARROW SUDOKU

A numberless Arrow Sudoku

RULES : Classic sudoku rules apply. Additionally , there are some arrow shapes in the grid. The sum of the digits along the path of each arrow must equal the digit in the circled cell. Digits may repeat along an arrow.

PUZZLE NO. 53 : X SUMS SUDOKU

An X Sums Sudoku for SM practice. 

RULES : Classic sudoku rules apply. Additionally , the clues outside the grid indicate the sum of the first X numbers placed in the corresponding direction , where X is equal to the first number placed in that direction.

PUZZLE NO. 52 : DIVISION SUDOKU

A Division Sudoku for SM practice

RULES : Classic sudoku rules apply. Additionally , the circled number between two cells indicates the quotient when the larger digit is divided by the smaller digit. The remainder must be zero.

PUZZLE NO. 51 : EXTRA REGIONS SUDOKU

RULES : Classic sudoku rules apply. Additionally , each group of nine coloured cells must also contain the numbers 1 to 9.

PUZZLE NO. 50 : CONSECUTIVE PAIRS SUDOKU

This was my submission for www.gmpuzzles.com. It was not accepted because Thomas found it extremely difficult. Give it a try guys.

RULES: Classic sudoku rules apply. If a grey circle is given between two adjacent cells , then the numbers in those cells will be consecutive. Not all grey circles are given , which means adjacent cells without a grey circle may or may not contain consecutive digits

PUZZLE NO. 49 : SEARCH 9 SUDOKU

Search 9 sudoku is normally considered as one of the most difficult variants. I have tried to keep the difficulty level in check so that it can be solved by the normal solvers as well.

RULES : Classic sudoku rules apply. Additionally , each arrow points to the 9 in the respective row or column. The number in the cell with the arrow is the distance from the cell to the 9 in the respective row or column.

PUZZLE NO. 48 : SERBIAN FRAME SUDOKU

A Serbian Frame sudoku for Sudoku Mahabharat 4th round practice.

RULES : Classic sudoku rules apply. Additionally , the clues outside the rows indicate the sum of the numbers to be placed in the 2nd and 3rd cells in the corresponding directions. The clues outside the columns indicate the sum of the numbers to be placed in the 3rd and 4th cells in the corresponding directions.