1.Killer Sudoku is a popular variation of the classic Sudoku puzzle that combines standard Sudoku rules with an additional layer of complexity involving cages. In Killer Sudoku, numbers within outlined regions, called "cages," must sum to a specified value, and numbers cannot repeat within these cages or in rows, columns, and 3x3 subgrids.
Standard Sudoku Rules Apply:
Numbers 1-9 must appear exactly once in each row, column, and 3x3 subgrid.
Cages and Sums:
The grid is divided into "cages" (outlined regions), each with a target sum indicated in its top-left corner. The numbers within a cage must add up to that sum, and no number can be repeated within a single cage.
Solving Techniques:
Killer Sudoku often involves techniques beyond basic Sudoku, including mental arithmetic and logical deduction related to cage sums and number exclusions. The "45 rule" is a common technique, based on the sum of numbers 1-9 being 45.
Origins:
Killer Sudoku was established in Japan by the mid-1990s as "samunamupure," a Nipponized form of "sum number place," and introduced to the English-speaking world by The Times in 2005.
Difficulty:
While the name suggests a challenging puzzle, simpler Killer Sudokus can be easier than regular Sudokus, and the difficulty can vary significantly, with hard versions requiring considerable time and mental effort.
Standard Sudoku Rules Apply:
Numbers 1-9 must appear exactly once in each row, column, and 3x3 subgrid.
Cages and Sums:
The grid is divided into "cages" (outlined regions), each with a target sum indicated in its top-left corner. The numbers within a cage must add up to that sum, and no number can be repeated within a single cage.
Solving Techniques:
Killer Sudoku often involves techniques beyond basic Sudoku, including mental arithmetic and logical deduction related to cage sums and number exclusions. The "45 rule" is a common technique, based on the sum of numbers 1-9 being 45.
Origins:
Killer Sudoku was established in Japan by the mid-1990s as "samunamupure," a Nipponized form of "sum number place," and introduced to the English-speaking world by The Times in 2005.
Difficulty:
While the name suggests a challenging puzzle, simpler Killer Sudokus can be easier than regular Sudokus, and the difficulty can vary significantly, with hard versions requiring considerable time and mental effort.
1. -Simon: What are you playing?
-Ed: Killer Sudoku, I think its pretty fun!
I couldn’t find a killer sudoku gif, sorry.
-Ed: Killer Sudoku, I think its pretty fun!
I couldn’t find a killer sudoku gif, sorry.
by Malik Yakubov July 20, 2025
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2. A slang for penis/dick.
3. Male of other animals: While most commonly referring to birds, it can also refer to the male of certain other animals, like a cock lobster.
4. Verb "to cock": This can mean to draw back the hammer of a gun in preparation for firing, or to tilt or turn something upwards or to one side, such as cocking one's head.
5. A small pile: As a noun, it can refer to a small heap of hay or straw.
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3. - John: What is that?
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4. How do i cock this gun?
5. -Nina: I lost my keys, can you find them?
-Daniel: Of course! I think you forgot them at a cock.
by Malik Yakubov July 20, 2025
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