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# Tough Sudoku for 26/April/2010

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 A gaggle of Galahs! 26/Apr/10 12:33 AM Oo-o-o-o-h! I want some! 26/Apr/10 1:04 AM Yes, Vici, I was thinking 'flock' but a 'gaggle' seems a better fit! 26/Apr/10 3:46 AM maen all! gaggles are strictly for geese...i think parrots are colonies...if these are a type of parrot in the pic...they roost like parrots. 26/Apr/10 4:58 AM I stilll like the sound of "a Gaggle of Galahs"! 26/Apr/10 6:10 AM Rather long, but the best I could find: 01. Basic techniques to UP = 2902. (5=3)d7 - (3)a7 = (3-9)a9 = (9)h9 - (9=5)g8 => d8, h7 <> 5 ; UP = 30 03. (6=4)d8 - (4)d5 = (4-7)f5 = (7)f8 => f8 <> 6 ; UP = 3104. Finned X-wing (7): abc4 = e4 - e7 = a7 => More... 26/Apr/10 7:11 AM Looks like Rose Crested Cockatoos to me. I found this puzzle especially difficult. 26/Apr/10 8:08 AM That's over an hour of my life I won't get back. I did this with basic techniques only (UPs + chains) and it didn't give up easily! 26/Apr/10 9:48 AM Stuck at 17:16 & 28 still unfilled squares I gave up to go mow my lawn. If Chris took over an hour, I think it was a good decision because I probably would have stayed stuck. 26/Apr/10 10:02 AM way over 1 hour; probably 2 hours :( 26/Apr/10 10:40 AM Yes Chris: but it was time well wasted 26/Apr/10 11:37 AM Hi rwm. Very impressive solution. Especially steps 5 and 6. I got stuck at your step 8. Afterh4<>6, you say this enables e4=6,but can't a4 still be 6 as well?Regards, Alfred. 26/Apr/10 4:14 PM Alfred,Sorry I neglected to check back on this page. Yes, you're quite right. I switched the order of two steps when I wrote it up, thinking it didn't matter, but, as you accurately observed, it does. My original step 9 does not depend on the result of step 8 so it should be interchanged More... 27/Apr/10 1:05 PM According to http://www.birdnature.com/groupnames.html Its a Company or Flock They don't have a specific collective noun for Galah, given that when you call someone a Galah you mean they are acting silly / stupid / noisy maybe there should be a specific one 27/Apr/10 1:37 PM Oh, there's lots of patience(stubborness?)out here, rwm! I'm looking forward to analyzing your Apr 9 solution, too. Regards,Brenda 29/Apr/10 1:08 PM Hi again, rwm. I've gotten stalled on your new step 9 (was 8). I still have 37 in a5. The 37 was/could be eliminated during the now step 8 (was 9) when/if c8=8, a789=379, but that is not a final result of the step. Is there something else I don't see? (a9<>8 is a permanent result of step 8, btw, fwiw.) Regards,Brenda 30/Apr/10 12:25 AM Thanks, rwm. Yes (duh) I see it now. Thanks. Brenda 30/Apr/10 10:38 PM 59:51 in order 25/May/10 2:08 AM 1)Start at 23,basic techniques to UP=292)(7):a7=e7-f8=f5,=>a5<>73)(5=3)d7-a7=(3-9)a9=h9-(9=5)g8,=>d8h7<>5.UP=30 4)(6)d8=(6-7)f8=(7-4)f5=(4)d5,=>d8<>4.UP=315)(5)h2=(5-4)h8=(4-7)f8=(7-5)e7=(5)e1,=>d2 More... 29/May/10 11:36 PM SE=8.5 10/Sep/10 9:24 PM