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Tough Sudoku for 16/February/2013


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Sudoku Solving Techniques

Submitted by: sudoku lover

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Thanks, think I'll wait!
(Don't want to make it cross!)
16/Feb/13 12:32 AM
I'm confused!
16/Feb/13 12:45 AM
Have a great day, everyone.
16/Feb/13 2:29 AM
#1. LS and LC; UP27

Solving XWing(4ad57) :=> -4ad468 ...
#2. a7=4->UP33;XWing(3ai35):=>a6=7->contradiction :=>d7=4;UP35;gh9=2;UP81
16/Feb/13 3:17 AM
28 (4)ad57=>[a68<>4&d8<>4]
b6=6=>[(e8=6=>b8=4=>a7=8=>a8=1=>h8=8)&(c1=6=>a3=3=>a6=7=>f6=9=>f9=2=>[ g6=2&h6=2]]=>b6<>6
29 (67)bh1=>bh1<>1
30 More...
16/Feb/13 12:41 PM
SSTS to UP=27,XW(4)ad57,=>a68d468<>4
2)(6)e6=(6-4)e4=b 8-(4=8)a7-gh7=(8-2)h8=gh9-(2=9)f9-(9=6)f6,
16/Feb/13 8:30 PM
0. Standard techniques UP 27
1. X-Wing (4)ad57 =>a68.d468 <>4
2. FXW 5e9=5g9-5g6=5de6 =>e4<>5
3. (5=9)e9-(9=2)f9-df8=(2-8)h8=abc8-(8a7=4)a7-a5=d5-e46=(4-6)e8=(6)e6 =>e68<>5 =>UP 28
4. (17=3)gi5-i3=a3-(3=7)a6 =>a5<>7 UP 29
5. Kraken cell f6 More...
17/Feb/13 10:12 AM
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