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Tough Sudoku for 23/April/2013


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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Cute! When I play with my grandkids at the park my hair does that too!
(Yes, I go down the slide with them!)
23/Apr/13 12:06 AM
SER=8.4 UP=26
1)ALS-XZ:(9=2)b7-(9=452)b3c23 => b12,c7<>2 UP=27
2)ALS Logic:(5)a8=(234)a45b6 or(5)c8=(8)c5 => c5<>24 UP=29
3)2-chain logic:(3=1)i6-i9=(3)f9 or(1=3)i6=(9)h6=(2)d6-d9=(2)f9 => f9=23 Hidden bivalue cell rule UP=31
4)Continuous loop:(2)f45-d6=(2-3)b6=(3)i6-i9=(3=2)f9 => b6<>4 UP=35
5)5 2-string kite:h34-ci5 => c3<>5 UP=81
23/Apr/13 2:03 AM
SSTS to UP=26
4)(4)b9=(4-2)b6=d6-d9=(2-3)f9=i9-i6=(3)b6,=>b6<&G T;4.UP=81
23/Apr/13 2:47 AM
For step 3-4 also:
SSTS to UP=26
3)FXW(5): b123=b4-h4=h3,=>c3<>5
23/Apr/13 3:15 AM
She is just beautiful!
23/Apr/13 4:23 AM
27 69@ai5=>bh5<>9
28 35@eh8=>e8<>79
29 2@gh7=>g9<>2 1@g123=>h2<>1 More...
23/Apr/13 9:48 AM
Hello Hayley! You do look beautiful, darling.
Hope you're enjoying the school holidays.
23/Apr/13 10:41 AM
Hi Les,can you check your notation please. 69 at ai5 is not valid, and f7 already =8, for instance, in this grid.

Best Regards, Alfred.
23/Apr/13 8:20 PM
Thanks Alfred I posted my solution for another day.
Try this one.
27 8@de1=>i1<>8 3@c78=>ab9<>3
f9=7=>i9=3=>{c7=3=>,i3=8=>i6=1=>f4=1=>f5=2&b6=3=>a1=3=>b1=2=>c5=2}=>f9 <>7
29 3@c78=>b7<>3
30 More...
25/Apr/13 10:56 AM
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