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Tough Sudoku for 20/October/2007


Choose a number, and place it in the grid above.

  1 2 3 4 5 6 7 8 9
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Submitted by: Gath

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It would be a lot of fun to visit this place! That is quite a statue!
20/Oct/07 12:31 AM
Wonderful statue. Have a terrific weekend, everyone!
20/Oct/07 1:10 AM
Made some stupid mistakes today. But in my favour - it's very late.

If you mark it up wrong.... you're doomed!
20/Oct/07 1:17 AM
I think I found a short one-step proof for this puzzle. Given 23, UP 31. At this point, a7=37. If 7, then c9=3, e7=3, d2=3, g1=3, a4=6, leaving no candidate for a1. Therefore a7=3. UP 81.
20/Oct/07 5:20 AM
Fabulous statue. Good photo.
20/Oct/07 5:24 AM
I didn't do the puzzle today, but I think the photo is great!
20/Oct/07 6:36 AM
I only have time to do the puzzles on some weekends and lunchtimes - but not every day. But I try to always see the pictures. There's a confession for you! I usually only do the Hard and the Tough.
20/Oct/07 8:01 AM
I have done, and mostly do do all the puzzles, and there's is sad confession also!
20/Oct/07 8:41 AM
16:22 Very slow!
20/Oct/07 10:37 AM
8.10 Fairly straightforward!
Me too Bluey, tragic aint it.
20/Oct/07 11:21 AM
Is that Mercury with Pegasus?
20/Oct/07 12:42 PM
7:38 (a record time for me!!!)

This was possibly the easiest tough puzzle ever. Hidden pairs take you a long way. My solution was very similar to Rich's in that it resolved the triple a147=367. Starting with the assummption a1=3 you quickly reach a position, where there is no legal place for a '3' in the lower right box (= region with center h2).
20/Oct/07 8:36 PM
Where is it?
20/Oct/07 11:54 PM
10/Nov/07 11:21 PM
Woo Hoo!! 15:34
27/Nov/07 1:05 PM

07/Sep/10 9:33 PM
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