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# Tough Sudoku for 26/August/2019

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Submitted by: Gath

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 Beautiful Queen Anne's Lace! 26/Aug/19 2:05 AM (S.E. 8.9) Basics to 271. Kraken (2)g279 =>-46ab9, -6h9, -6ef8, -46f7, -8f7*, -2f7#, -2a9#||(2)g2-i1=c1-(2=8)c7*-gh9-(8=246)def9||(2)g7-(2=8)c7*-gh7=gh9-(8=246)def9||(2)g9-(2=846) def9*#Note the subchain (2=8)c7-gh9-(8=246)def9 =>-2f7, -2a9---------------------2. More... 26/Aug/19 8:43 AM 1. Kraken row (2)ac8|f8|i8 => -156f8 => HP(15)e8.f7|| (2)ac8 - (2=8)c7 - c8 = (8)f8|| (2)f8|| (2)i8 - i1 = c1 - (2=8)c7 - c8 = (8)f82. (1): f456 = f7 - h7 = h6 - i4 = def4 => -1d563. (1=564)f741 - (4=156)e248 - (6=51)f47 => -1f56 ; UP = 294. (2)d8 = (2-3)d5 = (3-9)c5 = (9)c8 - i8 = (9-6)i3 = (6*)d3 - (6=54)df1 - (4)e2 = (4)e9 =>-6*4d8 ; UP=81 26/Aug/19 4:51 PM correction, step 4: 'd8' should read 'd9'4. (2)d9 = (2-3)d5 = (3-9)c5 = (9)c8 - i8 = (9-6)i3 = (6*)d3 - (6=54)df1 - (4)e2 = (4)e9 =>-6*4d9 ; UP=81 26/Aug/19 4:58 PM Basics to 27 1.if a2=3 OR b2=3 => c1=2 c7=f8=8 c8=h9=9 c5=3 if a2=3 => b9=3 b7=7 box3<>7 if b2=3 a5=0 OR UR 26 ai78=> c1=3 basics to 35 2.if e2=4 => g3=i5=f9=a7=4 g5==i7=b9=7 b7=f9=d5=0 => e9=4 basics to 49 3. X-chain x=1 =>[a6,b3,d5,h7,i4] <>1 => i4=3 g6=1 .. solve 26/Aug/19 11:42 PM