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Tough Sudoku for 1/October/2016

                 
                 
                 
                 
                 
                 
                 
                 
                 

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

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Submitted by: Gath

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Love that sky. Nice photo, Bev.
01/Oct/16 3:17 AM
Thanks jacalmi. It was a wonderful cruise!
01/Oct/16 4:39 AM
Standard techniques up 24
1. (9)g9=d9-9d1=9c1-9c4=9i4 =>-9i7, -9g6 up 31
2. (45)ac7=(5)f7-(5=6)f8-(6=4)f3-d3=(4-3)d6=(3)d7 =>-3ac7 up 37
3. (8=9)d2-(9=7)c2-(7=2)e2-e3=i3-i7=h7-h4=c4-(2=6)e9-c8=f8-(6=4)f3-f4=(4)d6 =>-8d6 up 81
01/Oct/16 4:45 AM
typo in #3 Should read ...c4-(2=6)c9-c8...
A better AIC: 3. (8=9)d2-(9=7)c2-(7=2)e2-e3=i3-i7=h7-h4=c4-(2=6)c9-(6=198)d129 =>-8d6 up 81
01/Oct/16 6:19 AM
1. Unique possibilities to 24.
2. Whether d9=9=e2;OR g9=9=b6;b2=5.UP31.
3. Whether d2=9,ac2=67,e2=2=g5=c4,c9=6;OR
d2=8,d7=3 [whether b8=3 or b8=1=h7],d1=9;f8=6.UP81.
01/Oct/16 6:38 AM
Last line should read:
d2=8,d7=3[whether b8=3 or b8=1=h7],d1=9,d9=1;f8=6.UP81.
01/Oct/16 6:43 AM
#25 1@df1=>def3<>1 9?@d9=>g6=9=>a6=7=>d6=4=>[d3=6=>d2=8&d7=3=>d1=1=>f1=7=>e3=2]=>e2={}=>d 9<>9
#31 27@e23=>e2<>89 #32 1?@d1=>f1=8=>g1=7=>i1=3=>i3=2=>g5=2=>[g8=1&b9=2=>c9=6=>d9=8=>d7=3]=>e8 More...
01/Oct/16 7:47 AM
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