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insaneneko

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evil addictive puzzle games are evil: kenken [Mar. 27th, 2009|07:51 pm]
insaneneko
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[Current Mood |bouncybouncy]

My entire office is addicted to KenKen, an insanely fun math logic puzzle from Japan. A 4x4 and 6x6 puzzle runs in one of the newspapers every day, and for a while my boss was playing it by himself. But then this week we decided to have a competition with everyone...And played it *every single day*. It got so bad that people would watch each other when the newspaper came so that no one could peek and cheat before we played at the end of the day. The nice thing was that different people "won" (finished first) basically every day.

The rules are simple:

1. Each row and each column must contain the numbers 1 through 4 (easy) or 1 through 6 (challenging) without repeating.
2. The numbers within the heavily outlined boxes, called cages, must total the target number in the top left of the cage, using the math operation given. For example 2- means the numbers in the cage total 2 through subtraction (3 and 1 or 4 and 2, in any order).
3. Freebies: In single-box cages, fill in the number in teh top-left corner of that cage. A good way to start is to fill in these boxes first.

I recreated one 4x4 and two 6x6 puzzles. Try them out!









the 4x4:
4 1 2 3
1 4 3 2
3 2 4 1
2 3 1 4

first 6x6:
2 4 3 5 1 6
5 6 1 2 3 4
3 1 5 6 4 2
6 5 4 1 2 3
1 3 2 4 6 5
4 2 6 3 5 1

second 6x6:
5 2 3 6 4 1
1 3 5 4 2 6
3 6 4 2 1 5
2 4 1 5 6 3
4 5 6 1 3 2
6 1 2 3 5 4


I bought a book at the bookstore so that I don't have to wait for the daily paper to play the puzzle. XD;
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Comments:
[User Picture]From: genkischuldich
2009-03-28 11:41 am (UTC)
Thanks! The first one was way easier than I expected and finished it just under a minute (in MSPaint!). The others look a bit harder and I think I'd like to try them on actual paper. I guess I'll have to look out for a book, but those weird picture-logic things seem to be in vogue right now.
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[User Picture]From: insaneneko
2009-03-28 07:38 pm (UTC)
Have fun! I think they're popular because they only require basic math skills and logical thinking, as opposed to something like crossword puzzles (I never know enough pop culture stuff to even come close to being able to do a decent one).
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[User Picture]From: rikiki_angel
2009-03-30 05:18 pm (UTC)
Nice, I think this will replace Sudoku properly soon in newspaper and mags.
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