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# Tough Sudoku for 9/March/2017

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Submitted by: Gath

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 Oh, he's gorgeous! 09/Mar/17 12:23 AM SE 7.2 lcls to 281. (9)b2=b79-(9=7)a7-a5=(7-5)c5=(5)c1 =>-5b2; lcls to 322. (2=4)e2-(4=6)e6-h6=(6-9)h5=d5-(9=5)e4-e7=(5-1)i7=(1-2)c7=(2)b7 =>-2b2; lcls to 343. (4=2)e2-(2=6)e8-(6=354)b458 =>-4b2; lcls to 354. (3)b8=h8-(3=9)h1-h5=d5-d9=(9)a9 =>-3a9; lcls to 525. (7=9)a9-a7=(9-5)e7=(5)f9 =>-7f9; singles to 81 09/Mar/17 1:10 AM SE 7.2SSTS to UP28.#1 (2)c3=UR gi35(28) -> -4c3; UP31.#2 (9)i1=i4-e4=e7-(9=17)ac7-(17=4)c9-g9=(4-8)g3=(28)i35 -> -2i1; UP37.#3 (5)c1=(5-7)c5=(79)a57-(9)a2=b2 -> -5b2; UP52.#4 (5)e7=(5-7)f9=f8-h8=(7-9)h4=e4 -> -9e7; UP81. 09/Mar/17 1:55 AM cenoman, I am not sure I understand how to read your results, but I wonder if there is a typo in step 4. As noted in step 5, a9 is either a 7 or a 9. 09/Mar/17 2:44 AM Such a beautiful animal. I'm sure he 'd rather wake up in Africa. Wilodene for the photo. 09/Mar/17 6:10 AM Hi Sarah, At first, thank you for reading my hieroglyphs! I have a question to readers like you: you have seen me using the acronym lcls (Locked Candidates, Locked Sets) since a few weeks. I find it fully in line with the designated techniques: singles, naked or hidden; pairs, More... 09/Mar/17 8:54 AM Oh, cenoman, now that I've done it again, I see that I was looking at your solution for a clue to a next step when I already had 79 in a9. My method includes taking hunches, so it is not based in logic, except that intuition itself is based on some sort of logic. 09/Mar/17 9:45 AM As for reading the notation, I must admit I am interested mainly in the start of each step to see which choice was in consideration, iow, where I might look for my next decision process. 09/Mar/17 9:48 AM #27 246@e268=>e3<>246 #29 28@gi5=>gi5<>469 7@ac5=>f5<>79?@e7=>{e4=5=>d5=9,a7=7=>g7=6,f9=5=>i7=5=>c7=1=>c9= 4=>c5=7=>c1=5=>h2=5=>g2=7=>g9=3=>a5=3=>b4=4=>h5=4=>h3=1=>h8=7=>i4=7 More... 09/Mar/17 10:07 AM Hi SarahIf only your hunch was e7<>9.You would have it done much quicker.Intuition is not based on any form of logic.Cheers Les. 09/Mar/17 10:12 AM 12:25 I agree with you, Jacalmi. That's why I went to Namibia and South Africa last year to see them in their natural habitat. 09/Mar/17 2:36 PM 51:24 10/Mar/17 11:38 AM