SudoKanard

  Linked Mean Minis (for Glum Hippo) XY-Differences Mean Mini Sudoku and Average Arrows Mean Mini Sudoku linked by German Whispers Mean Minis : standard Sudoku rules apply on each grid except that the set of six digits used has to be determined - they are digits between 1 and 9 and the two grids may use different sets. XY-Differences : the presence of a diamond symbol means that the difference between the two corresponding digits is equal to the first (leftmost or topmost) digit in the row/column of the symbol. All possible symbols have been given. Average Arrows : the digit in a circle is the average value of all digits along the arrow that stems from the circle. German Whispers : a black line between two cells means that the difference between the corresponding digits is at least 5. All possible black lines have not necessarily been given. Penpa link: https://git.io/JEIsE

  46   Sandwich/Thermo/Arrow/Quadruple/Difference Sudoku Dedicated to all people who turn 46 this summer, especially if they like football. Standard Sudoku rules. Sandwich : each number in the left margin is the sum of all digits sandwiched between the 1 and the 9 in the corresponding row. Thermo : along each thermometer, digits strictly increase starting from the bulb. Quadruple : when a circle overlaps four cells, the digits it contains must appear at least once in the four cells. Difference : when a circle overlaps two cells, the digit it contains is the difference between the digits in those two cells. Arrow : the two-digit number that is read downwards in the capsule is the sum of the digits along each of the arrows that stem from the capsule. Penpa link: https://git.io/JRKUN  

Odd/Even Sudoku 6×6, two variants   Two practice puzzles for the upcoming Sudoku Mahabharat round.   Odd/Even Arrow Sudoku 6 ×6 Penpa link: https://git.io/JlTwA Standard 6 ×6 Sudoku rules apply. Gray circle = odd digit. Gray square = even digit. The digit in a hollow circle is the sum of all digits along the corresponding arrow. All digits in the circles in the first two rows have the same parity. Odd/Even View Sudoku 6 ×6 Penpa link:  https://git.io/JlTiN Standard 6 ×6 Sudoku rules apply. Shaded squares should contain even digits (2,4,6) while shaded circles should contain odd digits (1,3,5). A cell which is not shaded can contain a digit of any parity.   Additionally, an even digit outside the grid must be the first  even digit seen from that direction and an odd digit outside the grid must be the first odd digit seen from that direction.

 All or Nothing Killer Sudoku Standard Sudoku rules apply. Killer Sudoku rules apply: in every cage with a dashed outline, all digits are different and the number that may be written in the top left corner is the sum of all digits in the cage. When the sum is written with two different digits, either both digits are in the cage or none of them are. This applies even to cages whose sum is not specified.   This variant was invented by Erwan Bernard. Penpa link to solve online: https://git.io/JlJwm This puzzle was solved by Simon Anthony on Cracking the Cryptic: https://www.youtube.com/watch?v=uVYG5Jica1I

 Mathrax Sudoku   Standard Sudoku rules apply. Some intersections are marked by a number and an operator in a circle. The number is the result of the operation, applied to both pairs of diagonally opposite cells. A question mark means that the result of the operation is not given and has to be determined as part of the puzzle. An E in a circle means that all four adjacent digits are even. An O in a circle means that all four adjacent digits are odd. Penpa link to solve online: https://git.io/JWN6x  

French Revolution: from 1789 to 2021     Standard Sudoku rules apply. Thermo : digits strictly increase along thermometers starting from the bulb. Arrow : the digit in the circle is the sum of all digits along the arrow. X-Sums : each number on the left side of the grid is the sum of the X first digits where X is the first digit seen in that direction. Sandwich : each number above the grid is the sum of the digits that are sandwiched between 1 and 9 in the corresponding column.   Penpa link to solve online: https://git.io/JCqbr