Sudoku

[Ryuu]

For those who know how to play, standard Sudoku rules; but watch your zones since it's rather hard to display them here.


| | |9| | | |4|1| |
| | | |1|8| | | | |
|7| | |6| | |5| | |
|8|3| | | | | | | |
| | | | |5|6| | | |
| | | | | |2| |4| |
| |9|7| | | | | |3|
| | |5| |2|7| | |9|
| | |1|3| | | | | |

rated medium--5/10

|1| |3|2|7| | | | |
| | |9|1| | | | | |
| | | | | | |5|6| |
| | | |3|9|2| | | |
| |6| | | |1| |2| |
| | | | | | | |7| |
|7| |1| | | | | |8|
| | | | |3|4| | | |
|3| | | | | |2| | |

rated moderately hard-8/10

I'll post the solution on Monday :wave:

--note: in some of these games, it may be possible that there is more than one solution, as I have seen in cases where all four corners of a rectangle could possibly have the same numbers filling them.

[Kath]

If there's more than one solution, it's not a true sudoku... ;)

[Ryuu]

If there's more than one solution, it's not a true sudoku... ;)I remember there was one in a newspaper where the only blocks left formed a rectangle, something like this:


| | | | | | | | | |
| | | | | | | | | |
| | |A| | | |B| | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | |B| | | |A| | |
| | | | | | | | | |
| | | | | | | | | |

where either of the 2 missing numbers could go in A & B--that puzzle was rated one of the hardest, btw, but I had found it easy up until those last two numbers.

Whether it's a true sudoku or not isn't my concern--call it a 'variation' if you must :biggrin:

Did you at least solve these?:razz:


|5|6|9|2|7|3|4|1|8|
|2|4|3|1|8|5|9|7|6|
|7|1|8|6|4|9|5|3|2|
|8|3|2|7|1|4|6|9|5|
|9|7|4|8|5|6|3|2|1|
|1|5|6|9|3|2|8|4|7|
|4|9|7|5|6|1|2|8|3|
|3|8|5|4|2|7|1|6|9|
|6|2|1|3|9|8|7|5|4|

rated medium--5/10

|1|5|3|2|7|6|8|9|4|
|6|8|9|1|4|5|7|3|2|
|2|7|4|9|8|3|5|6|1|
|4|1|7|3|9|2|6|8|5|
|9|6|8|7|5|1|4|2|3|
|5|3|2|4|6|8|1|7|9|
|7|4|1|6|2|9|3|5|8|
|8|2|6|5|3|4|9|1|7|
|3|9|5|8|1|7|2|4|6|

rated moderately hard-8/10

:blink:Damn! Posting these solutions was harder than doing the puzzles :erm:

[Kath]

I don't usually bother with standard sudoku these days, as they're not really challenging enough - give me a killer (http://www.killersudokuonline.com/) instead!

[Ryuu]

While I was in Beijing, I was learning to play several of the variants. One that I liked: Samurai Sudoku (http://www.clarity-media.co.uk/samurai-sudoku-5grid.pdf). I've only seen a few papers publish those.

A quick search found these sites for variants:

http://www.sachsentext.de/en

http://www.saidwhat.co.uk/sudokus/sudokufaq.php -- a list of mostly pay-for sites, but at least mentions the Samurai & this Shogun (http://www.clarity-media.co.uk/megadoku.php) beast looks nasty!:eek:

[Kath]

Yeah, but Samurai is just a bigger version of the same thing. No real increase in difficulty, just a longer playing time.

[Pickles]

I am with you Kath. I prefer the more diabolical sudokus. In fact I only ever do grandmaster advanced ones which start at hard and work up.

I would have posted one here but just could not get it all to line up properly.

Pickles

[Cheryl]

I'm with ya also, Kath. Killer sudoku and kakuro now have much more appeal than standard sudoku.