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标题: A Number Puzzle [打印本页]

作者: sean9991    时间: 2005-9-20 22:24
标题: A Number Puzzle

The objective is to fill in the blanks with numbers 1 - 9 such that:
1) Each digit appears exactly once on each row.
2) Each digit appears exactly once on each column.
3) The whole board can be seperated into 9 (NINE) 3x3 squares.  Make sure each digit appears exactly once within each 3x3 square.
 www.ddhw.com
Usually there is a limit of 10 -15 minutes to solve a puzzle (hard one).  If this is the first time you play, it could take longer to get the hang of it.
 
Here is one, substitute x with number 1 - 9:
x,x,x,6,x,x,x,5,x
x,x,1,x,x,7,x,6,x
x,x,7,x,4,x,x,1,x
x,x,5,4,x,x,x,x,8
7,x,x,x,1,2,x,x,3
2,x,x,3,x,x,5,x,x
x,3,x,x,2,x,1,x,x
x,5,x,8,x,x,4,x,x
x,7,x,x,x,9,x,x,x
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作者: yma16    时间: 2005-9-22 09:24
标题: It is a Su Do Ku.

BTY, what software did you use to draw the picture for 20 dots forming 21 lines?  It is a beauty.
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作者: sean9991    时间: 2005-9-22 17:56
标题: 回复:It is a Su Do Ku.

I used just Microsoft paint.  It gives the coordinate of your mouse when you left-click, so a little calculation and rounding to the closest integer should work perfectly.
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作者: ob    时间: 2005-9-22 23:55
标题: Got it finally. it took me long to figure it out[:

4,2,3,6,8,1,9,5,7www.ddhw.com

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

6,8,7,9,4,5,3,1,2www.ddhw.com

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

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

2,6,9,3,7,8,5,4,1www.ddhw.com

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

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

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

www.ddhw.com

 


作者: sean9991    时间: 2005-9-23 00:56
标题: [@};-]Congrats![@};-]

There should not be any SuDoku problem that can challenge you.
www.ddhw.com

 

作者: husonghu    时间: 2005-9-23 03:46
标题: hehe,what's Su Do Ku(meaning,in Chinese)?[:>]

  hehe,what's Su Do Ku(meaning,in Chinese)?





作者: sean9991    时间: 2005-9-23 17:13
标题: 回复:hehe,what's Su Do Ku(meaning,in Chinese)?[:>]

Actually it's Japanese Kanzi (Chinese Character).  Su is 数 (Number), Doku is 独 (isolated, single).
www.ddhw.com

 

作者: husonghu    时间: 2005-9-23 18:32
标题: Thanks.

  Thanks.









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