PUZZLE NO. 279 : 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.

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PUZZLE NO. 278 : ODD EVEN SUDOKU

 

RULES :  Classic Sudoku rules apply. Cells containing grey circles contain only odd digits. Cells containing grey squares contain only even digits.

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PUZZLE NO. 277 : 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.

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PUZZLE NO. 276 : KILLER SUDOKU

 

RULES : Classic Sudoku rules apply. Additionally , there are some cages in the grid. The number on the top left corner of each cage is equal to the sum of the digits in that cage. Digits do not repeat inside a cage.

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PUZZLE NO. 275 : SUM FRAME SUDOKU

 

RULES : Classic Sudoku rules apply. Clues outside the grid represent the sum of the first three digits in the corresponding row or column.

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PUZZLE NO. 274 : THERMO SUDOKU

 

RULES : Classic Sudoku rules apply. Additionally, there are some thermometer shapes in the grid. The numbers are in increasing order from the bulb to the flat end on each thermometer.

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PUZZLE NO. 273 : KILLER - LITTLE KILLER HYBRID SUDOKU

 HAPPY BIRTHDAY

The best way to always remember your wife's birthday is to forget it once. I bet, you will remember it all your life. Happy Birthday to my better half . 

RULES : Classic Sudoku rules apply. Additionally , there are some cages in the grid. The number on the top left corner of each cage is equal to the sum of the digits in that cage. Digits do not repeat inside a cage. Also, numbers with arrows outside the grid indicate the sum of the digits in the corresponding direction. Digits may repeat in the corresponding direction.

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PUZZLE NO. 272 : KROPKI PAIRS SUDOKU

 

RULES : Classic Sudoku rules apply. 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 not marked.

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PUZZLE NO.271 : 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.

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PUZZLE NO. 270 : LIAR XV SUDOKU

 

RULES : Classic Sudoku rules apply. The given Xs and Vs are all liars. Horizontally or vertically adjacent cells separated by an X  add up to either one more or one less than 10, i.e. 11 or 9. Horizontally or vertically adjacent cells separated by a V add up to either one more or one less than 5, i.e. 6 or 4. Converse rule applies , i.e. all possible Xs and Vs are marked.

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