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# Tough Sudoku for 1/October/2006

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Submitted by: Gath

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 I just don't believe it, I haven't seen this photo before.Looks like Emily is enjoying the beach. She'll never fill it up at that rate. 1) Start 22, Unique Possibilities to (UP) 25.2) Hidden pair 27 at b18 forbids b1=6, b8=19. UP 42.3) Hidden pair 79 at i13 forbids i1=16, i3=126, i5=9, i6=9.4) Locked 6s at hi2 forbid ef2=6.5) g1=5 == g9=5 -- g9=4 == g6=4 -- f6=4 == f5=4 -- f5=3 == e5=3 -- e2=3 == e2=5 forbids h2=5. UP 81. Now I am longing to go back to the beach with my own little girls. Very easy tough today. Too easy ... Good morning to all, and hi Emily! Elizabeth: A little chilly in my part of Ontario for the beach today. ) Start at 22 filled - the given puzzle. Unique Possibilities to 25 filled. (UP 25).2) Hidden pair 27 at b28 forbids b2=6 and b8=19 UP 423a) Hidden pair 79 at i13 forbids i1=16,i3=126, i56=93b) Locked 6's at hi2 forbids ef2=63c) e7=5 == e7=6 -- e3=6 == e3=1 -- g3=1 == g1=1 -- g1=5 More... Grabbed from a forum, perhaps those wishing a bit more of a challenge in their sudoku life the today's rather easy tough might wish to consider the following puzzle:002_090_107038_600_000400_000_000000_005_000 More... Hi everybody, very nice to wake up to my Emily on the website! Greg, that picture was taken in early July so it was pretty warm then! As the rest of the pictures that I posted come up (?soon) you will get to meet Emily as a baby in addition to the big girl (5) that she is now! Have a great weekend all! Emily is trying to hold the water in the ocean. For the proposed puzzle posted above, I have an fc length 4, classical depth 7ish proof - but it is not optimized. It does not seem that the puzzle, which was advertised in the forum as 'the toughest sudoku', is too hard - but it is an interesting puzzle nevertheless. My version of Simple Sudoku says it's an invalid puzzle - 170 solutions. It had to think for a while before it came up with that. Emily looks like she is having fun. Oh to feel the warm ocean breezes........... 26:48 Emily in red. Isn't it amazing how cildren can have fun with no props, just imagination? Hope we get to see her face soon. Hi Elaine - I think that the proposed puzzle was posted without error, but it is quite possible that I am staring at what I posted and still missing the error. I do that very easily, as my mind tends to fill in blanks...without me realizing it - at least that is my excuse and I am sticking with it. Assuming that I did not mispost, it is a one solution puzzle. 6:23 Good Maen Is anybody else that is doing the word search puzzles coming up with repeats? I've done them all on both easy and hard, but there seems to be only about ten different puzzles. 10.21hope emily enjoyed the beachlook forward to seeing some more photos of emily, Jillhave a great day/night one and all 14:36 I did the puzzle Steve posted and I did the setup with simple sudoku. It didn't complain and had a unique solution as far as I could tell. It did take me an hour though! Longer tough today 16.19 Good to see Emily again! and now the warmer whether has come back and we can go to the beach again! Hi Emily...!49:38 i was sick and too too too slow Tough today It's me! :) hello youMaen all to the rest of you Great!! 06:29. Mar. 19, 2007. 20/Mar/07 4:15 AM SE=7.2 05/Sep/10 10:06 PM one path (not cleaned up) for Steve's challenger: 002090107038600000400000000000005000009010300000400000000000004000007920806030700 14/Dec/10 3:40 PM 1.SST to UP=21 !!2.SF(4):f9=h9-h5=b5-b1=f1 => b26,f8,h68<>43.kraken row(3)acd6 => ef8<>2,a8<>9,hi7<>5 UP=26(3)a6-(13)ab2=XW(5)ab29-ab5=XW(5)hi15-hi8=(29)hi8||(3-4)c6=g6-(4=259)ghi8||(3)d6-(3=8 )d9-d2=(*68)ei2-(4)e2=e8-(4=259)ghi84.(4=5)e8-d7=(*15)d23-(8)d2=(*68)ei2 => e2<>4 UP=55.5.FSF(8):f5=e6-e2=i2 => i5<>8 STE. 14/Dec/10 5:06 PM 17:05. 25/Jan/20 12:05 PM