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## CHAT LOG for Sunday, June 15, 2014

1:14 am
Fizzbut

dng
1:27 am
WHB

Done
1:51 am
MrOoijer

g/g
1:52 am
MrOoijer

@UtH - very interesting pattern, a bent UR!
2:45 am
digondda

Done, with greens.
3:07 am
Doll414

go
3:29 am
Doll414

done
5:56 am
tincup

done
7:32 am
sprite

awesome, Unike, thank you! Yes, very clear to me now. Will enable me to solve more sudokus for sure.
7:33 am
sprite

(I only knew the type one UR)
8:07 am
UnikeTheHunter

Oh, here's another type of unique rectangle. I remember about four weeks ago on an Expert I was able to operate on both ends of a unique rectangle at once. But I thought it was a special case. No, there is a general case, type 3:
(3, ) (3,6)
(3,6) (3, )
Neither of the empty positions is a 6.
9:56 am
UnikeTheHunter

Here's another, type 4:
(3,6) (3, )
( ,6) (3,6)
The two empty positions cannot be 6 or 3.
10:17 am
hurshy

i thought that is only true of ONE of the two empties.
10:18 am
hurshy

we get them all the time where one of them IS a 3 or a 6. just the other one can't be.
10:30 am
hurshy

in fact we get it today
10:30 am
hurshy

R6-7 C7-8
10:31 am
hurshy

you must have only got lucky if you operated on the assumption that neither could be 3 or 6.
11:34 am
helenkeller

go
11:48 am
helenkeller

done
12:34 pm
zoomzoom

Done.
3:45 pm
Ed-was_here

Go
4:23 pm
Ed-was_here

Done with greens
6:52 pm
UnikeTheHunter

Done, no green, two guesses, one unlucky, one lucky. I didn't encounter a unique rectangle of any kind.
Hurshy, I think you didn't understand my notation. Each (3,6) represents a pair. Each open position means other numbers. If either empty spot is filled in, making three like pairs on three corners... ... yeah, maybe you are right. I'm experiencing a violation of Hurshy One right now, so I can't think clearly. I guess I'd better be careful with type 3 and type 4 UR's.
7:38 pm
ypsigirl

DWG
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