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April 24 very hard

 
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mtharp



Joined: 19 Jun 2006
Posts: 30

PostPosted: Fri Jul 07, 2006 11:46 pm    Post subject: April 24 very hard Reply with quote

For the April 24 puzzle I have reached:

4 26 27 9 56 156 15678 3 5678
5 1 79 8 4 3 679 67 2
69 8 3 7 2 156 1569 4 56

1 23 28 5 9 4 3678 67 678
7 9 6 2 3 8 4 5 1
38 4 5 6 1 7 38 2 9

36 367 4 1 567 9 2 8 567
2 67 1 4 8 56 567 9 3
89 5 89 3 67 2 67 1 4

Anybody have any suggestions?

Mike Tharp
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David Bryant



Joined: 29 Jul 2005
Posts: 559
Location: Denver, Colorado

PostPosted: Sat Jul 08, 2006 12:05 am    Post subject: Row on block interaction Reply with quote

Hi, Mike! Welcome to the forum.

-- The only way a "6" can fit in row 2 is if it goes in the top right 3x3 box (that is, at r2c7 or r2c8). So you can eliminate "6" from r1c7, r1c9, r3c7, and r3c9.

That should get you going. dcb Smile
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mtharp



Joined: 19 Jun 2006
Posts: 30

PostPosted: Sat Jul 08, 2006 3:04 am    Post subject: thanks Reply with quote

Thanks. It broke it wide open. I do not know why I did not see it.

Mike Tharp
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