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Submitted by: Gath

 Indicate which comments you would like to be able to see GeneralJokesOtherSudoku Technique/QuestionRecipes
 Lovely photo. I wonder where it was taken? 14/Feb/20 12:36 AM |  |
 My proof only reached UP34. May be continue tomorrow. 14/Feb/20 7:47 AM |  |
 Basics to 281. SF(4)acf368 =>-4a45, -4c5, 4f25; basics to 302. (1=2)d1-d9=e7-(2=1)e4 =>-1e3, d43. (1=2)e4-(2=91)f58 =>-1f6 4. (1)c3=f3-(1=92)f58-c5=(2)c6 =>-1c6; basics to 325. [(2)e7=d9-h9=h3] = h6-(2=4)f6-(4=12)d1.f3 =>-2e3; basics to 366. More... 14/Feb/20 8:23 AM |  |
 Basics to 28 1.X-chain x=2 =>[e3,g57]<>2 => W-wing 12 d1e4 =>[e3,d4]<>2 =>e3=7 basics to 34 2.if d1=2 => d4=9 d9=6 g9=g3=28 g1<>8 if g3=2 i3=8 h3=3 h6=2 =>box4<>2 =>g3=8 basics to 35 3. if c3=4 => a3=9 f3=1 e4=1 a4=3 a6=6 More... 14/Feb/20 8:04 PM |  |
 51:25 15/Feb/20 6:04 AM |  |
 Basics to 28. In steps 1 and 6, symbol '@' delimits embedded loop1. @(4)f6 = ac6 - b45 = b2 - ac3 = (4-2)f3@ = (2)f56 - (2=1)e4 => -1f6 andloop (swordfish) eliminations: -4a45|c5|f25 ; UP = 302. (1=2)e4 - e7 = d9 - (2=1)d1 => -1d4|e33. (2=14)d1.f3 - (4=2)f6 - (2)h6 = More... 17/Feb/20 2:09 AM |  |

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