Puzzle No. 478: Quadruple-Quad Sum Hybrid 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 outlined box. 

Digits in circles must appear in the surrounding four cells, in some order.

Also, the white circle implies that one digit is the sum of the remaining three digits at that 2x2 square. Not all circles are given, i.e. there may or may not be additional 2x2 squares where one digit is the sum of the remaining three digits.

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Puzzle No. 474: X Sums-Little Killer-Quadruple Hybrid Sudoku

The results for ISC exams are out and my daughter scored 97%. I made this Hybrid Sudoku themed on her score.

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 outlined box. 

The clues outside the grid indicate the sum of the first X digits placed in the corresponding direction, where X is equal to the first digit placed in that direction. 

Numbers with arrows outside the grid indicate the sum of the digits appearing in the cells in the corresponding direction. Digits may repeat in the direction of the arrow.

Digits in circles must appear in the surrounding four cells, in some order.

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Puzzle No. 460: Dutch Whispers-Quadruple Hybrid 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 outlined box.

Adjacent digits along each marked line have a difference of at least 4.

Digits in circles must appear in the surrounding four cells, in some order.

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Puzzle No. 459: Renban-Quadruple Hybrid 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 outlined box.

Each marked line contains consecutive digits, in any order.

Digits in circles must appear in the surrounding four cells, in some order.

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PUZZLE NO. 401: QUADRUPLES - REGION SUM LINES HYBRID SUDOKU

 

RULES: Classic Sudoku rules apply. Digits in circles must appear in the surrounding four cells, in some order. For each line, digits on the line have an equal sum N within each box it passes through. If a line passes through the same box more than once, each individual segment of such a line within that box sums to N separately. 

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PUZZLE NO. 216 :ODD EVEN-THERMO-ARROW-KILLER-LITTLE KILLER-XV PAIRS-KROPKI PAIRS-QUADRUPLE HYBRID SUDOKU

 

RULES : Classic Sudoku Rules apply. Additionally,

• Odd Even Sudoku rules apply ; i.e. grey circles contain odd digits ; grey squares contain even digits;
• Thermo Sudoku rules apply ; i.e digits along the thermometer will strictly increase from the bulb to the flat end;
  
• Arrow Sudoku rules apply ; i.e. the sum of the digits along the path of the arrow must equal the digit in the circled cell. Digits may repeat along an arrow;
• Killer Sudoku rules apply ; i.e.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;
• Little Killer Sudoku rules apply ; i.e. the numbers with arrows outside the grid indicate the sum of the digits appearing in the cells in the corresponding direction. Numbers may repeat in the direction of the arrow;           
• XV Pairs Sudoku rules apply ; i.e. if the sum of digits in orthogonally adjacent cells is 10, then they are separated by an X. If the sum of digits in orthogonally adjacent cells is 5, then they are separated by a V. All possible Xs & Vs are not marked;
• Kropki Pairs Sudoku rules apply ; i.e. 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;
• Quadruple Sudoku rules apply ; i.e. each small digit inside the grid should appear at least once in the four neighboring cells of the grid;  

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PUZZLE NO. 202 : QUADRUPLE SUDOKU

 

RULES : Classic Sudoku rules apply. Additionally, each small digit inside the grid should appear at least once in the four neighboring cells of the grid.

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PUZZLE NO. 193 : THERMO - QUADRUPLE HYBRID 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. Also, each small digit inside the grid should appear at least once in the four neighboring cells of the grid.

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PUZZLE NO. 178 : Quadruple Sudoku

 

RULES : Classic sudoku rules apply. Additionally, each small digit inside the grid should appear at least once in the four neighboring cells of the grid.

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