Puzzle No. 499: Thermo 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. 

There are some thermometer shapes in the grid. The digits are strictly in increasing order from the bulb to the flat end of each thermometer.

Online Solving Link to Penpa   

Online Solving Link to Sudokupad

 

Puzzle No. 491: Thermo 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. 

There are some thermometer shapes in the grid. The digits are strictly in increasing order from the bulb to the flat end of each thermometer.

Online Solving Link to Penpa 

Online Solving Link to Sudokupad

Puzzle No. 488: Thermo - X Sums 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. 

There are some thermometer shapes in the grid. The digits are strictly in increasing order from the bulb to the flat end of each thermometer.

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. 

Online Solving Link to Penpa 

Online Solving Link to Sudokupad

Puzzle No. 471: Thermo-Region Sum Lines 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. 

There are some thermometer shapes in the grid. The digits are in increasing order from the bulb to the flat end of each thermometer.

Digits on each blue line add up to the same number in each box it visits.

Link to Penpa

Link to Sudokupad

Puzzle No. 467: Thermo 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. 

There are some thermometer shapes in the grid. The digits are in increasing order from the bulb to the flat end of each thermometer.

Link to Penpa

link to sudokupad

Puzzle No. 464: Thermo 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. 

There are some thermometer shapes in the grid. The digits are in increasing order from the bulb to the flat end of each thermometer.

Online Solving Link using Penpa

Online Solving Link using Sudokupad

Puzzle No. 417: Thermo Sudoku 6x6

 

RULES: Place a digit from 1 to 6 in each empty cell so that each digit appears exactly once in each row, column and 2x3 outlined box.

There are some thermometer shapes in the grid. The digits are in increasing order from the bulb to the flat end of each thermometer.

Online Solving Link using Penpa

Online Solving Link using Sudokupad

Puzzle No. 415: Thermo-German Whispers-Renban-Region Sum Lines-Kropki Pairs 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.

There are some thermometer shapes in the grid. The digits are in increasing order from the bulb to the flat end of each thermometer. 

Adjacent digits along each green line have a difference of at least 5.

Each purple line contains consecutive digits, in any order.

For each blue 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. 

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.

Online Solving Link using Penpa

Online Solving Link using Sudokupad

Puzzle No. 414: Thermo-Arrow-German Whispers-Dutch Whispers-Region Sum Lines-Kropki Pairs 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.

There are some thermometer shapes in the grid. The digits are in increasing order from the bulb to the flat end of each thermometer. 

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.

Adjacent digits along each green line have a difference of at least 5.

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

For each blue 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. 

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.

Online Solving Link using Penpa

Online Solving Link using Sudokupad

PUZZLE NO. 409: THERMO SUDOKU

 

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

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PUZZLE NO. 400: THERMO - ARROW HYBRID SUDOKU

 

RULES: Classic Sudoku rules apply. Additionally, there are some thermometer shapes in the grid. The digits are in increasing order from the bulb to the flat end of each thermometer. 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. 398: UNTOUCH - THERMO HYBRID SUDOKU

 

RULES: Classic Sudoku rules apply. No same digit touches each other diagonally. Additionally, there are some thermometer shapes in the grid. The digits are in increasing order from the bulb to the flat end of each thermometer. 

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Puzzle No. 393: Thermo Sudoku

 

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

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Puzzle No. 388: Thermo - Sum Sandwich Hybrid Sudoku

 

Happy Sudoku Day !

RULES: Classic Sudoku rules apply. Additionally, there are some thermometer shapes in the grid. The digits are in increasing order from the bulb to the flat end of each thermometer. The clues outside the grid represent the sums of the digits sandwiched between the 1 and the 9 in that row or column.  

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PUZZLE NO. 368 : THERMO SUDOKU

 

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

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PUZZLE NO. 335 : THERMO SUDOKU

 

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

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PUZZLE NO 329 : THERMO - LITTLE KILLER - SUM SANDWICH - X SUMS HYBRID SUDOKU

 A TRIBUTE TO THE LEGEND ROGER FEDERER

Today's Sudoku is a tribute to the greatest - Roger Federer. He announced his retirement from tennis yesterday. With age already having caught up and his body not in full shape, he decided to call it a day. With his retirement, he has left a void, which will be very difficult to fill. He was the most graceful and the most talented of all the tennis players. He finished his career with 20 grand slams and 28 masters 1000. We will always miss his grace, his effortlessness on the court, his one handed backhand shots, his drop shots, him marching towards the net and winning points. His numbers may have been overshadowed by his contemporaries, but his legacy will live on forever.

RULES : Classic Sudoku rules apply. Additionally,

• Thermo Sudoku rules apply; i.e. there are some thermometer shapes in the grid. The digits are in increasing order from the bulb to the flat end of each thermometer.
• Little Killer Sudoku rules apply; i.e. numbers with arrows outside the grid indicate the sum of the digits in the corresponding direction. Digits may repeat in the corresponding direction.
• Sum Sandwich Sudoku rules apply. Clues on top of the grid are Sum Sandwich clues, i.e. they represent the sums of the numbers sandwiched between the 1 and the 9 in that column.
• X Sums Sudoku rules apply. Clues on the bottom of the grid are X Sums clues, i.e. they 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.

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PUZZLE NO. 318 : THERMO - RENBAN - X SUMS HYBRID SUDOKU

 

RULES : Classic Sudoku rules apply. Additionally,

• Thermo Sudoku rules apply, i.e. there are some thermometer shapes in the grid. The digits are in increasing order from the bulb to the flat end of each thermometer.
• Renban Sudoku rules apply, i.e. each purple line contains consecutive digits.
• X Sums Sudoku rules apply, i.e. 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.

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PUZZLE NO. 303 : THERMO-LITTLE KILLER-KROPKI PAIRS HYBRID SUDOKU

 HAPPY VALENTINES'S DAY TO ALL

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, numbers with arrows outside the grid indicate the sum of the digits in the corresponding direction. Digits may repeat in the corresponding direction.

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. All possible dots are not marked.

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PUZZLE NO. 302 : THERMO SUDOKU

IT'S ISC 2021

This puzzle was created by me for ISC 2021. But the testers found it a bit hard for a contest. So I am posting it on my blog.

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.

Solve Online