Sudoku Puzzles

lots of decoration for a gate.

9.07 quite easy

6:13 I love chinese architecture Maen

Hope someone tells where/what it is.

Happy New Year Steve, and thanks heaps for your proofs.

Maen. A nice easy puzzle even with the slight handicap that the automatic possibility remover did not work.

11:36 MAEN Shoulda been a lot faster... beautiful architecture!

Onward with our tour, this time to the orient.

This was pretty easy today. If only the rest of my day was this simple!

An ornate gate?

Hi ttt!

This is a response to some of your questions from yesterday.

There is no defined maximum to the ratings using the formula that I use. I suppose there is a theoretical maximum - but, it is very large.... Hopefully, I never encounter a puzzle that challenges the theoretical More...

Happy New Year to you too, Kim!

You are most welcome!

Would love to know specifically where this is. Very nice. Have a great day/night, everyone.

A proof for tough??? sudoku of 01 04 2007:

1) Start at 22 filled - the given puzzle. Unique Possibilities to 25 filled. (UP 25).
2) pair 23 at hi2 forbids ag2,hi1=2 and forbids aefg2,hi1,gh3=3 UP 60
3) Coloring on 1's: As fc on 1's: a8 == a5 -- c4 == e4 forbids e8=1 UP 81
Sets: 4. Max depth 2. Rating: .06

9:42
China, Beijing ... Well, how it is in English? Eternal Town?

as: I think the words you are looking for are 'Forbidden City'. It looks like it might be, but hard to tell. I thought the wall of the forbidden city were red, not gray.

Martha, you are right! Forbidden City!!! and walls there are RED! But I think some 'inner' walls were gray... or ...maybe I remember wrong? It is so many years when I travel to China!

Martha, I think you're right.

This was an easy puzzle today, until the end. I was left with 21 open squares of 1s,7s,9s, and 3s...I ended with a near-guess.

Good afternoon to all! Where it is I'm not sure, but it's the forth time we've seen this picture.

To Steve,
your proof from yesterday, step 4b.
I have a 4 in cell i2 as well as i6 and i1, which you obviously don't have for the i1=4==i6=4 part. I have looked and looked and can't get rid of that extra 4, can you tell me where I went wrong?
Thanks.

9 minutes.

Hi Soozn!
In my step 3b, I eliminated 3 from i3.
In my step 3c, I eliminated 3 from i6.
Then i2=3, as that was the only spot left for 3 in row i. That took care of that nasty 4 at i2.

I mean, of course, column i....

Thanks Steve,
I didn't understand step 3c with the hidden pair fc, so I didn't do that step ;-)). That will teach me to just follow the result even if I can't follow the reasoning LOL.

Keyan, I thought it was easy till I ended up with 1s,7s and 9s too, which I couldn't solve without a guess.

7.49 fairly easy tough one
cheers

to STEVE : thank you very much...!

straight upto 35 fills and then a nishio giving c7=1 c4=7 or e4=7.

No guesses!

just guessing on 1, 7 and 9
how to solve it without guessing??

Getting faster.

Simple one. Under 30 mts.

Dec. 18, 2007. Much easier one than the first 3 days of January!

SE=4.5