PUZZLE NO. 113 : Liar Sudoku

RULES : Classic sudoku rules apply. Every given clue is lying. The correct value is either one more or one less than the given clue. Note : 1 clue can only be 2 and 9 clue can only be 8.

PUZZLE NO. 112 : Quad Max Sudoku

RULES : Classic sudoku rules apply. An arrow on the grid points to the highest digit in the four cells around it. Digits may appear around an arrow, but the highest digit is always unique.

PUZZLE NO. 111 : Classic Sudoku

RULES : Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 box.

PUZZLE NO. 110 : Odd Even Bridge Sudoku

 RULES : Classic sudoku rules apply. Some circled cells are connected by a bridge.
               An odd digit in a circle equals the number of odd digits on the bridge. An even digit in a circle equals the number of even digits on the bridge.
               The digits on the circle are not counted.
Note : This sudoku featured on the youtube channel Unshackling Sudokus & Puzzles. The link to the video can be found here How to solve this Odd Even Bridge Sudoku

PUZZLE NO. 109 : Online Sudoku

RULES : Classic sudoku rules apply. The given digit / digits on each grey line must appear on the same line in the solution. They may or may not appear in the same order. Digits may repeat on a line.

PUZZLE NO. 108 : Between Sudoku

RULES : Classic sudoku rules apply. Every digit on a grey line must have a value which lies between the values of the two digits in the circles at the ends of the line. Digits may repeat along a line.

PUZZLE NO. 107 : Sun-Doku

RULES : Classic sudoku rules apply. The sun and its rays are drawn in the grid. Rays lose intensity with distance from the sun, so numbers on each ray are strictly decreasing towards the end. The central cell ( the sun ) in not part of any ray.

PUZZLE NO. 106 : Shifted Sudoku

RULES : Place digits from 1-9 in each empty cell so that every row, column and 3x3 box contain different digits.

PUZZLE NO. 105 : Magic Square Sudoku

RULES : Classic sudoku rules apply. Shaded 3x3 squares are magic squares. The sum of the numbers in all rows, columns and two diagonals should be equal in a magic square.

PUZZLE NO. 104 : Sequence Sudoku

RULES : Classic sudoku rules apply. Additionally, the digits along each marked line have to be different and must form an arithmetic sequence in the correct order.

PUZZLE NO. 103 : Mirror Sudoku

RULES : Classic sudoku rules apply. The 1st & 9th boxes and the 3rd & 7th boxes are mirror images to each other.

PUZZLE NO. 102 : Consecutive Pairs Sudoku

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. 101 : Alphabet Sudoku

RULES : Place alphabets from the title of my blog " SUDOKU FOR ALL " so that each row, column and 3x3 box contain each alphabet exactly once.
               Note : The colored cells have nothing to do with the rules. It just highlights the title of my blog.

PUZZLE NO. 100 : Multiplication Table Sudoku

   I started the month of April with 48th sudoku on my blog. Today I am posting the 100th sudoku.

RULES : Classic sudoku rules apply. The two digit number in the second line of each 2x2 shaded region is the product of the two one-digit numbers in the first line of the shaded region. Numbers may repeat in the shaded regions.
               Special thanks to Rakesh Rai for testing this sudoku.

PUZZLE NO. 99 : Irregular Kropki Sudoku

This is a hybrid of Irregular Sudoku and Kropki Sudoku.

RULES : Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and outlined region. Each outlined region is marked by thick borders.

              Additionally, if the absolute difference between two digits in neighboring cells equals 1, then they are separated by a white dot. If the digit in a cell is half or double of the digit in a neighboring cell, then they are separated by a black dot. The dot staying between 1 and 2 can have any of these dots. All possible dots are marked.

PUZZLE NO. 98 : Windoku

RULES : Classic sudoku rules apply. Each of the four shaded 3x3 regions must also contain numbers 1 to 9.

PUZZLE NO. 97 : XV Sudoku

RULES : Classic sudoku rules apply. If the sum of digits in orthogonally adjacent cells is 10, then they are separated by X. If the sum of digits in orthogonally adjacent cells is 5, they are separated by V. All possible X and V are marked.

PUZZLE NO. 96 : No Even Neighbors Sudoku

RULES : Classic sudoku rules apply. Even numbers cannot be vertically or horizontally adjacent to each other.

PUZZLE NO. 95 : Odd Even Sudoku

Today's sudoku is on the demand of my daughter, Hunar. She is a big fan of the Korean Band BTS. She wanted me to make something on the BTS Logo. Here is a BTS Logo themed Odd Even sudoku.

Theme : BTS Logo

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. 94 : Slant Kropki Sudoku

RULES : Classic sudoku rules apply. Single slant between two diagonally adjacent cells implies that the numbers are consecutive. Double slant between two diagonally adjacent cells implies that one number is double or half of the other. All possible slants are marked.
               A note of thanks to Rakesh Rai for testing and creating the eps of this sudoku. 

PUZZLE NO. 93 : Dual Sudoku ( Outside Sudoku 6x6 & Inside Sudoku 6x6 )

This is a dual sudoku. It can be solved individually, both as an Outside Sudoku as well as an Inside Sudoku.

RULES FOR OUTSIDE SUDOKU : Place a digit from 1 to 6 in each empty cell so that each digit appears exactly once in each row, column and 2x3 box. Additionally, the digits outside the grid must appear in one of the first two cells seen from that edge of the grid.

RULES FOR INSIDE SUDOKU : Place a digit from 1 to 6 in each empty cell so that each digit appears exactly once in each row, column and 2x3 box. Additionally, the digits outside the grid must appear in either the second or the third cell seen from that edge of the grid.

PUZZLE NO. 92 : Irregular Star Battle Sudoku

RULES : Place a digit from 1-7 and two stars in each empty cell so that each digit appears exactly once in each row, column and outlined region. Each outlined region is marked by thick borders. As in Star Battle puzzles, the stars cannot be placed in neighboring cells, including diagonally adjacent cells.

PUZZLE NO. 91 : Sudo-Kurve Sudoku

RULES : Place a digit from 1 to 9 in each empty cell so that no digit repeats in any row or bold region. Some rows bend as indicated by following the curved lines.

PUZZLE NO. 90 : Sudo-Kurve Sudoku

RULES : Place a digit from 1 to 9 in each empty cell so that no digit repeats in any row or bold region. Some rows bend as indicated by following the curved lines.

PUZZLE NO. 89 : Classic Sudoku

RULES : Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 box.

PUZZLE NO. 88 : Toroidal Sudoku

RULES : Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and outlined region. Some of the outlined regions wrap between the top & bottom edges, and/or left & right edges of the grid. 

PUZZLE NO. 87 : Diagonal Sudoku

RULES : Classic sudoku rules apply. Additionally, each main diagonal ( marked by dotted lines ) must contain digits from 1 to 9.

PUZZLE NO. 86 : Irregular Sudoku

RULES : Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and outlined region. Each outlined region is marked by thick borders.

PUZZLE NO. 85 : Scattered Sudoku

RULES : Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and outlined region. Grey cells are not part of any regions.

PUZZLE NO. 84 : Classic Sudoku

RULES : Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 box

PUZZLE NO. 83 : Odd Even Queen Sudoku

RULES : Classic sudoku rules apply. Additionally, exactly two numbers ( one odd and one even ) behave like chess Queens. Two queens of the same parity can not be placed along the row, column or diagonal of any length. The Queens should be determined as part of solving