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Tough Sudoku for 30/August/2015


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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Standard techniques UP 51
Two paths:
First: 1. XYWing (4=9)h5-(9=2)e5-(2=4)e1 =>-4h1 UP 81
Second: 1. UR (29)ab39 =>a3=8 UP 56
//Kite (2)e5=c5-a4=a1 =>-2e1 UP 81

Still searching a path to yesterday's tough...
30/Aug/15 3:00 AM
Beautiful waterfalls. LankyYank.
30/Aug/15 3:32 AM
1. Note h5i4=49,ac7=16.Unique possibilities to 51.
2. Whether e1=2;OR e1=4=h5;e5=9.UP81.

In yesterday's puzzle,I found b2<>3, or else 57 or 58 UR @ fh23; if that is any help.
30/Aug/15 5:17 AM
#26 128@ghi6=>gh5<>128
#43 2@f79=>f5<>2
#52 4?@h1=>e1=2=>e5=9=>h5={}=>h1<>4
VHBC to #81
V:Only cell left in Vertical column for this candidate
H:Only cell left in Horizontal row for this More...
30/Aug/15 7:06 AM
Yesterday's puzzle: nothing better than a very long path. I give it up.
30/Aug/15 8:18 AM
SE=4.2 UP to 51
1)XY-Wing:(4=2)e1=(9=2)e5=(9=4)h5 => h1<>2 UP=81
30/Aug/15 8:47 AM
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