Tough Sudoku

I'm first

12:05 = record time for a 'tough'. Just because it was so easy....

10.18
have a great day/night one and all

1. Start at 21; UP 26
2. Quads: d1,e1,f1,e3=6789, elim in box, e2=1
3. Hidden pair: d7=f8=14, elim others, d1=6
4. Locked 2s in Be8, elim in row
5. Hidden pair: e8=h8=68
6. Fc: If b7=7 =>b4<>7
If e7=7, f1=7 => b4<>7
7. Locked 7s in Bb5, i5<>7, i1=7, easy to end

cold and wet in sydney (no water spouts though :)

thank the lord for the 'check moves' button. 15:30 and about 50 wrong moves :D

Terrific picture. Fascinating to look at in a photo. Maybe not so great when you're close. Glad you're safe!

Start at 22. Up to 28 (b6, d1, d6, e2, e5, h5)
hidden pairs : d2=f3=24, d7=f8=14
d7=4 -> d2=2 -> d9=7 and d7=4 -> f8=1 -> b7=1 -> a9=7 forbid d7=4 => d7=1 Up to 81

1) Start at 22 filled - the given puzzle. Unique Possibilities to 26. (UP 26).
2) Hidden pair 24 at d2f3 forbids d2=16 and f3=789. UP 27.
3) Hidden pair 14 at d7f8 forbids d7=267,f8=28. UP 28.
4a) d4=7 == d9=7 -- a9=7 == a5=7 forbids b4=7.
4b) Locked 7's at ab5 forbid i5=7. UP 81
Totals sets: 7. Max depth 2. Rating: 3(.03) +.01 = .10

Nice chain Huaiyu!

You could write your chain as:
f8=4 == f8=1 -- b8=1 == b7=1 -- b7=7 == a9=7 -- d8=7 == d8=2 -- d2=2 == d2=4 forbids d7=4:

One could be shorten your chain to:
b7=7 == a9=7 -- d8=7 == d4=7 -- d4=1 == d7=1 forbids b7=1

mAen all. I'll take this cold snap over a tornado anytime!

12:34 - not too bad

What's the difference between a waterspout and a tornado if they are both over land?

12:41
No guesses
mAen all
Cool funnel

Fill to 28. d9 is 2 cannot be 7. Makes f1 and f9 78 - UP 81.

Amazing picture.

KB

21:45 with a million mistakes along the way.
Very scary picture.

Glad we don't get those here!

The last day of the long weekend and the sun is out but srill very cold and muddy underfeet.

19:42

Yes, keep the tornadoes in the Midwest! We have enough mayhem out here with the earthquakes, fires, and mudslides!

'A Twister, A Twister'

Good maeN, all!

What do the number chains posted here mean?

You would be wanting to wear your brown pants in that situation.

For Leeadi: I wish someone would tell me too! I know they are positions on the board but not sure how they are named or how to follow the above chains!

Martha: these were waterspouts, formed over water, as we were approaching the Sunshine Skyway Bridge, coming from the Tampa Airport

http://www.pbs.org/wgbh/buildingbig/wonder/struct ure/sunshine_skyway.html

nice welcome home after just landing from a trip to Europe :/ but it was incredible to see 5, I have more pics of under a small one, etc.

07/29/06 poss , one guess (wrong) - not too bad after that

hsmpjolc vqgomnz zgbjrackl yewztforv yvlfiko kqjhel wvedyph

tcvu cakl kbasqo vlpwusya mhrbq kihn bupd http://www.mynkbfz.wpkuof.com

Aug. 4, 2007.

SE=6.6

19:04.