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Tough Sudoku for 5/April/2009

                 
                 
                 
                 
                 
                 
                 
                 
                 

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

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   Shiela  From MI
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dino!....Very nice composition, color, texture, lighting... What more can I say... Nice photo!
05/Apr/09 12:37 AM
   Vibrant Vici  From California    Supporting Member
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Now that's the dino photo I'm accustom to! Lovely dino - thanks!
05/Apr/09 1:14 AM
sotir  From New York
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1.Start at 23,=>UP=29
2.(6=4)i5-(4=8)i3-(8)i9=(8-1)h9=(1)h8-(1)e8=(1-6)e4=(6)ab4,=>ab5<>6.UP=30
3 .WY-style.(5)a7=(5-6)b9=(6)b46-(6=7)a4=>a7<>7.UP=81
05/Apr/09 1:50 AM
   Debby  From Michigan,USA    Supporting Member
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This picture reminds me of the beach with warm sand! Thanks, Dino!
05/Apr/09 1:53 AM
sotir  From New York
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1.=>UP=27,sorry
05/Apr/09 1:54 AM
Nick  From Toronto
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41:27
05/Apr/09 2:13 AM
Dimitris  From Greece
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All!
05/Apr/09 3:00 AM
Alfred  From Sydney    Supporting Member
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Hi Sotir.Piggy-backing on your idea,you could also start with: If b9=5,a1=5,b1=6=e3=a4,c1=1=a5 and row 7 is devoid of 1.So a7=5,c7=1 and UPs to 81.(The triple 467 in row 9 makes i9=8).Regards, Alfred.
05/Apr/09 4:19 AM
   Chris  From Canberra    Supporting Member
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22:08, should have been faster but I missed an obvious chain. all.
05/Apr/09 8:08 AM
   johnvan  From Toronto
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25:11
05/Apr/09 9:28 AM
   fii  From NT
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sensational shot of sun, sea, sand, seaweed and shadow, Dino

Several hidden pairs and triplets emerged as this puzzle unfolded. At 31 filled (all with basic techniques - and if you can't see them - just reset the possibilities) I found that once it was proved that g2 could not = 3 or 5 as in both cases a1 amd a9 sould = 5, the puzzle unfolded.
05/Apr/09 11:35 AM
   Wagdy Kamel  From Cairo Egypt
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Greet photo Dino.
Have a very nice Day to all of you.
05/Apr/09 3:40 PM
farpointer  From Wisconsin
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I got the same result as fii.
1. UP=31
2. (5=467)a7c98-(6)c1=(6)a1 => ~(5)a1. UP=81.
16/May/10 10:53 PM
sotir  From New York
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SE=7.1
09/Sep/10 10:17 PM
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