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
Get the Killer Sudoku mug.A gross, green, slimy goblin living in the slums of the southern side of America. It will reproduce quickly if not dealt with.
The Killer Witch wishes to bring physical harm to others, getting temporary joy out of it and leading it to be happy enough to lay eggs. Be careful, stranger!
The Killer Witch wishes to bring physical harm to others, getting temporary joy out of it and leading it to be happy enough to lay eggs. Be careful, stranger!
Person 1: "Watch out mane, it's the killer witch!"
Person 2: "Damn, that sucks."
Killer Witch: "IDK I'm going to harm you physically so I can lay eggs haha good made me laugh."
Person 1: "Dude nice."
Killer Witch: "I killed you."
Person 2: "Damn, that sucks."
Killer Witch: "IDK I'm going to harm you physically so I can lay eggs haha good made me laugh."
Person 1: "Dude nice."
Killer Witch: "I killed you."
by X08 November 5, 2025
Get the Killer Witch mug.Related Words
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• kill3rlego
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A Killermouse is a tiny disabled-looking creature that looks harmless… but has more rotations than a Samsung smart washer on the “heavy duty” setting.
This creature jumps between partners like it’s a competitive sport.. Not because they NEED to — but because they get bored faster than a toddler with a dead iPad. They’ll call it “exploring options” or “building experience points” (pure delusional BS)
Killermice also LOVE blowing shit up. Chaos is a full personality trait. If something starts getting healthy, stable, or emotionally safe… they’ll hit self-destruct JUST to make sure emotional insurance companies stay bankrupt.
Then they stand there shocked like THEY didn’t press the button.
A Killermouse is:
Small. Cute. Disabled. Psychotically unpredictable.
A public hazard. A hazard to themselves. A hazard to any country.
Emotionally allergic to peace and simplicity.
Always keeps everyone guessing. Has a disease called “fuck with everyone syndrome”.
This creature jumps between partners like it’s a competitive sport.. Not because they NEED to — but because they get bored faster than a toddler with a dead iPad. They’ll call it “exploring options” or “building experience points” (pure delusional BS)
Killermice also LOVE blowing shit up. Chaos is a full personality trait. If something starts getting healthy, stable, or emotionally safe… they’ll hit self-destruct JUST to make sure emotional insurance companies stay bankrupt.
Then they stand there shocked like THEY didn’t press the button.
A Killermouse is:
Small. Cute. Disabled. Psychotically unpredictable.
A public hazard. A hazard to themselves. A hazard to any country.
Emotionally allergic to peace and simplicity.
Always keeps everyone guessing. Has a disease called “fuck with everyone syndrome”.
by electricdildo November 10, 2025
Get the Killermouse mug.lindsay: what are they singing
laura: Zygote killer, liar, theif
lindsay: oh, ok
or
guy1: What do you want to be when you grow up?
guy2: A ZYGOTE KILLER!
guy3: Nice.
laura: Zygote killer, liar, theif
lindsay: oh, ok
or
guy1: What do you want to be when you grow up?
guy2: A ZYGOTE KILLER!
guy3: Nice.
by Lindsayhahahahhahaha July 29, 2008
Get the Zygote Killer mug.Top #1 Pure -20 defense pker in RuneScape World. Some friends says that he is undefeated. Founder of Enigma Clan.
by Rafaellozz February 17, 2009
Get the str_killer0o mug.1. An electricity waster. Especially in regions run on hydro-electric generation.
2. General Term for an environmentally apathetic jerk.
2. General Term for an environmentally apathetic jerk.
by Steve H. Perry February 27, 2009
Get the Salmon Killer mug.A person that uses way to much toilet paper to wipe their ass. This person often clogs toilets and has multiple toilet plungers in their home.
Tim: Dude, where's the toilet plunger; the toilet's clogged again?
Tom: How many times did you wipe?
Tim: 4, why?
Tom: You, Charmen Killer, you.
Tom: How many times did you wipe?
Tim: 4, why?
Tom: You, Charmen Killer, you.
by Challenge December 12, 2009
Get the Charmen Killer mug.