Timer
00:00:00

# Tough Sudoku for 8/September/2010

 1 2 3 4 5 6 7 8 9
Check out the latest post in the Sudoku Forum

Welcome to the Sudoku Forums!

Submitted by: Gath

 Indicate which comments you would like to be able to see GeneralJokesOtherSudoku Technique/QuestionRecipes
 Too tough, SE=8.8 08/Sep/10 12:06 AM Did you climb under the Falls, Vici? That is such a cool experience! 08/Sep/10 12:19 AM I didn't, Judy. I was down there all by myself...towards the end of the day and just stayed to take some photos before hiking back up to join Bean at the top. 08/Sep/10 12:40 AM Here's a start:1. Unique possibilities to 24.2. If c8=8,d8=4,d4=9=f9,c7=6=e9;central box is devoid of 6. So a8=8.UP25 08/Sep/10 12:51 AM S.E. 8.8!!! Three corkers in a row. No time until after work today :-( 08/Sep/10 1:29 AM 6 chains and 2 kraken produced a whopping UP=30, whereupon I took the sane path and gave up. I'm sure a thick monograph of chains and krakens could limn a path - but...I'm not that addicted. If not unfairly tough, at least uninterestingly tough, not even a backdoor to hang one's hat on. 08/Sep/10 2:12 AM OK-maybe time for the 12 step program.7 chains plus 3 kraken did the job. I'll spare you the gory details. 08/Sep/10 3:07 AM farpointer:please have a look on Eureka,Extreme #206,comments. 08/Sep/10 3:28 AM sotir: lifts my spirits some, but I'm certainly feeling off my game after these last three here. There's a nagging suspicion that I'm not seeing 'the elephant in the next room' when a solution takes more than 3 or 4 steps. Steve or some other vet usually proves that the elephant is real. 08/Sep/10 4:08 AM I love the photo Vici. 08/Sep/10 5:38 AM A long path for this one.1)Start at 22,SSTS to UP=242)(6)d1=f2-(6=2)i2-(2=158)abc2-(8)bc1=(8)h1,=>h1<>63)(hp26=2)dib1-(2=158)abc2-(8=3 )c1,=>i1<>34)(9)d4=d8-(9=2)i8-(2=6)i2-f2=(6)d1,=>d4<>6.UP=255)(268=7)def7-(7=4 More... 08/Sep/10 11:55 AM 9)=>h13<>9 08/Sep/10 12:04 PM Step 5) is not necessary. 08/Sep/10 12:45 PM Vici, Beautiful. But weird (for me). At first I thought I was looking at a Rodin grouping through a curtain. 08/Sep/10 2:08 PM Hi farpointer and all, I've spent quite a bit of time on this and found the following backdoors: (3)c7, (4)c6, (2)b5, (8)b4, (4)g4, (3)b3, (8)h5, (2)a2, (8)g2, (8)c1, (3)h1, (2)i1. Best regards, Neil 08/Sep/10 5:49 PM I got there eventually - 55:12. Good night all. 08/Sep/10 10:09 PM just mulling over some theory (Steve probably has covered this ground). When two bool nodes are linked T-T,F-F and those nodes are say almost hidden set and almost Xwing or SwordFish, the link permits a quantum jump between remote cells. You could have something like:HP(nm)g8i9 -- (n)a1 where (n)a1 is weak with an almost fish with weak column a and almost weak column g or i. 08/Sep/10 11:59 PM