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Tough Sudoku for 6/June/2018

                 
                 
                 
                 
                 
                 
                 
                 
                 

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Sudoku Solving Techniques

Submitted by: sudoku lover

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Basics to 46
1.if c3=7 => b2=0 => a1=7 OR c7=7 solve
06/Jun/18 1:27 AM
Basics to 46
1. (8=3)e9-e8=b8-b1=f1-(3=8)f2 =>-8e12; basics to 58
2. XY-wing (9=7)c3-(7=6)g3-(6=9)i2 =>-9h3.b2; singles to 81
06/Jun/18 2:25 AM
Kate for an interesting photo.
06/Jun/18 4:59 AM
#29 46@a58=>a8<>7 1@e789=>e3<>1
#47 6?@e2=>e3=5=>h3=9=>36@i23=>g3=7=>c3=3=>e9=3=>e1=8=>g1={}=>e2<>6
06/Jun/18 6:25 AM
1. Unique possibilities to 46.
Making use of the 19 Unresolvable Rectangle @ ab27:
2. Whether h3=5,e3=6;,OR h3=9,i23=36,g3=7=c7,c9=3 or else UR,i3=3;i2=6.UP81.
06/Jun/18 10:47 AM
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