PUZZLE NO. 230 : KAKURO

RULES : Enter a single digit from 1 to 9 into each white cell so that the sum of digits in each Across entry equals the value given to the left of the entry, and the sum of digits in each Down entry equals the value given above the entry. No digit may be repeated within a single entry (i.e., group of cells connected horizontally or vertically without any black cells between).

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PUZZLE NO. 229 : KILLER ARROW HYBRID SUDOKU

 I had created this sudoku in a sudoku setting contest on CTC Discord server. The contest was of  1 hour and the variant that was given to us to create was Killer Arrow Hybrid Sudoku. I happened to read about the contest when the contest had already begun and 30 minutes had already passed. I was allowed to participate on condition that  my entry would be considered unofficial. When I had finished creating and test solving for uniqueness, Nityant Agarwal, who was the host, told me that the contest got over 8 minutes before. I realized that I had created this sudoku and test solved it in just 38 minutes. It was a unique experience of creating a sudoku under time constraint. Hope you guys will enjoy solving this sudoku.

RULES : Classic Sudoku rules apply. There are some cages in the grid. The number on the top left corner of each cage is equal to the sum of the numbers in that cage. Numbers do not repeat in a cage. 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. 228 : TIC-TAC-TOE SUDOKU

 

RULES : Classic Sudoku rules apply. The central 3x3 box serves as a map to the 9 corresponding 3x3 blocks. Wherever the central 3x3 block contains an odd digit, the corresponding 3x3 block must have three odd digits in at least one line (horizontal, vertical or diagonal). Wherever the central 3x3 block contains an even digit, the corresponding 3x3 block must have three even digits in a line (horizontal, vertical or diagonal). No 3x3 block can contain both a line of odd digits and a line of even digits.

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PUZZLE NO. 226 : MATHRAX SUDOKU

 

RULES : Classic Sudoku rules apply. Some intersections of the grid lines are marked by a number and an operator (+, -, x, /) in a circle. The number is the result of the operation, applied to both pairs of diagonally opposite cells. An E in the circle indicates that all four adjacent digits are even, while an O indicates that all four adjacent digits are odd. Digits may repeat within a circle. Not all circles are marked.

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PUZZLE NO. 225 : Sudo-Kurve Sudoku

 

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

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PUZZLE NO. 224 : 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.

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PUZZLE NO. 223 : RENBAN SUDOKU

 

RULES : Classic sudoku rules apply. Additionally , marked lines contain consecutive numbers in any order.

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PUZZLE NO. 222 : LIAR KILLER SUDOKU

 

RULES : Classic Sudoku rules apply. Additionally, there are some cages in the grid. The digits in the cages add up to either 1 more or 1 less than the number given on the top left corner of each grid. Digits do not repeat inside a cage.

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PUZZLE NO. 221 : 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. 220 : 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. 219 : DUAL SUDOKU ( Thermo Sudoku & Arrow Sudoku )

   

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

RULES FOR THERMO SUDOKU : 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.

RULES FOR ARROW SUDOKU : Classic Sudoku rules apply. The sum of the digits along the path of each line must equal the digit in the circled cell. Digits may repeat along a line.

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