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Tough Sudoku for 21/June/2015

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Submitted by: Gath

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 What a lovely blue sky. Very peaceful scene too. 21/Jun/15 3:31 AM Basics including 2 XWings on 6s; UP32i6=2 -> i4=6; f5=2, a5=3=g2, g3=4; a3=89=d35 + 8b25 + 9b15 has 0 solution :=> e6=2; UP81 21/Jun/15 5:37 AM Basics including 2 XWings on 6s; UP32i6=2 -> i3=6; f5=2, a5=3=g2, g3=4; a3=89=d35 + 8b25 + 9b15 has 0 solution :=> e6=2; UP81 21/Jun/15 5:38 AM Eureka notation :Invalid[(89)a3.d35,8b25,9b15] : (2=6)i3-6ad3=*L2-Wing[3a3=*4d3-4g3=(4-3)g2=3a2]-3a5=(3-2)f5=2e6 :=> -2i6,e3; UP81 21/Jun/15 6:00 AM Beautiful photo and inspiring surroundings, thanks for sharing ! 21/Jun/15 6:47 AM #29 2345@g1239=>[g46<>4&g467<>5] #30 5@i46=>i78<>5=>18@gi7=>[c7<>8&i8<>1]#33 4?@g2=>[a2=3=>c1=1=>c6=9&f7=4=>c7=5=>e7=6=>b1=6=>b2=8]=>b5={}=>g2<> 4#35 More... 21/Jun/15 9:00 AM That's lovely! 21/Jun/15 9:49 AM