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  Topic: May 31 very hard
Leo P

Replies: 6
Views: 27564

PostForum: Daily Sudoku puzzles   Posted: Wed May 31, 2006 2:32 pm   Subject: May 31 very hard
Hi Angel,

Thank you. I was certain I had overlooked something. It is much better than brute force.

Leo
  Topic: May 31 very hard
Leo P

Replies: 6
Views: 27564

PostForum: Daily Sudoku puzzles   Posted: Wed May 31, 2006 11:49 am   Subject: May 31 very hard
Having arrived at

528|391|647
493|726|xxx
176|845|xxx
---+ ---+---
xxx|653|7xx
6x7|489|xx2
xx5|172|x6x
---+ ---+---
x54|967|x31
x6x|xx4|97x
7x9|xx8|4x6

I completed the puzzle using trial and error ...
 
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