dailysudoku.com Forum Index dailysudoku.com
Discussion of Daily Sudoku puzzles
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Search found 273 matches
dailysudoku.com Forum Index
Author Message
  Topic: it's the 1 april - time of a real challange - Zen Sudoku
someone_somewhere

Replies: 3
Views: 11835

PostForum: Other puzzles   Posted: Sat Apr 01, 2006 4:20 pm   Subject: it's the 1 april - time of a real challange - Zen Sudoku
Hi,
I know, nobody has yet solved the previous Zen sudoku.
Now on the 1. April it's time for an other one.
We just take the old (unsolved) one:
6.2.5....
.....4.3.
.........
43...8...
.1....2..
...... ...
  Topic: DB Saturday Puzzle (April 1)
someone_somewhere

Replies: 2
Views: 11384

PostForum: Other puzzles   Posted: Sat Apr 01, 2006 4:05 pm   Subject: DB Saturday Puzzle (April 1)
Hi,
may I suggest from Aplha star r1c7 to eliminate 3 from r9c9:
2 6 135 9 57 157 37 4 8
. . .a. . .. ... Aa . .
. . ... . ...
  Topic: DB Saturday puzzle (March 25)
someone_somewhere

Replies: 7
Views: 19009

PostForum: Other puzzles   Posted: Tue Mar 28, 2006 4:58 pm   Subject: DB Saturday puzzle (March 25)
Hi David,

That is exact what I had in mind, and that you have suggested in one of the last emails.

Instead of starting from an ALPHA star with 2 digits, we could also start from a "double" star. So ...
  Topic: DB Saturday puzzle (March 25)
someone_somewhere

Replies: 7
Views: 19009

PostForum: Other puzzles   Posted: Mon Mar 27, 2006 8:35 am   Subject: DB Saturday puzzle (March 25)
Hi,
Some comments about using the DIC (Double Implication Chains):
- it depends on your starting Alpha star.
- it depends about how many stars you are willing to follow (how deep you are ready to go). ...
  Topic: NIghtmare 24 Mar - basic training DIC - Double Impl. Chains
someone_somewhere

Replies: 0
Views: 9169

PostForum: Other puzzles   Posted: Sat Mar 25, 2006 11:30 am   Subject: NIghtmare 24 Mar - basic training DIC - Double Impl. Chains
Hi,
The Nightmare from 24 Mar can be used for a basic training in DIC - Double Impliation Chains.

Starting from:
........8
.1..843..
28..7....
.541.....
.7.....2.
.....541.
....9..31
..681..7.
5..... ...
  Topic: Nightmare 25 Mar - Nice special 6 stars constellation
someone_somewhere

Replies: 1
Views: 10415

PostForum: Other puzzles   Posted: Sat Mar 25, 2006 11:06 am   Subject: Nightmare 25 Mar - Nice special 6 stars constellation
Hi,
The Nightmare from 25 Mar:

5.....3..
.7...5.9.
3....6..2
..4.32...
..5...1..
...75.4..
9..8....1
.8.5...7.
..1.....4

After warm up with:
Hidden Pair 1 4 in r2c1 and r2c5,
Nacked Pair 6 8 in r2c7 ...
  Topic: A very tough minimal sudoku
someone_somewhere

Replies: 5
Views: 17063

PostForum: Other puzzles   Posted: Mon Mar 13, 2006 8:59 am   Subject: A very tough minimal sudoku
Thank you, guys.
I used also double implication chains, but ... I had to travel to a couple of other galaxies, until I got to the solution.
It is ZEN.
Hope that you are finding a way, your way ...

W ...
  Topic: DB Saturday puzzle (March 11)
someone_somewhere

Replies: 7
Views: 19075

PostForum: Other puzzles   Posted: Sun Mar 12, 2006 3:58 pm   Subject: DB Saturday puzzle (March 11)
Hi,
could not resist to take a look at this one.
I found a nice 5 star in the following places:
r2c6 = 47
r2c7 = 47
r3c5 = 347
r9c5 = 47
r9c7 = 47
Staring with r2c6 as alpha and following only the dig ...
  Topic: "Nightmare" for Thursday, 9 March, 2006
someone_somewhere

Replies: 2
Views: 12053

PostForum: Other puzzles   Posted: Sun Mar 12, 2006 2:51 pm   Subject: "Nightmare" for Thursday, 9 March, 2006
Hi,
Just tried this one, in order to check that I am still alive ...

I foud for digit 3 a X-Wing on Column in: r2c2 r2c6 r5c2 r5c6
so I could eliminate it from: r3c2, r3c6, r4c2, r4c6, r9c6
and so 3 ...
  Topic: A very tough minimal sudoku
someone_somewhere

Replies: 5
Views: 17063

PostForum: Other puzzles   Posted: Sun Mar 12, 2006 2:12 pm   Subject: A very tough minimal sudoku
Yes, I called it Zen.
No single response in this forum is confirming it's name.
I know how to get to the solution, but it takes a long time, like in the Zen training. No brute force is needed.

If som ...
  Topic: A "4-star constellation" example
someone_somewhere

Replies: 14
Views: 34994

PostForum: Other puzzles   Posted: Sat Mar 04, 2006 4:07 pm   Subject: someone_somewhere is still alive
Sorry for not beeing active in this forum for a longer time ...
I am active now in a project in UK where I have similar excitement as solving the "almost imposible" Sudoku's.
In the airport, I noticed ...
  Topic: "Nightmare" for January 30, 2006
someone_somewhere

Replies: 2
Views: 13252

PostForum: Other puzzles   Posted: Sun Feb 05, 2006 11:28 am   Subject: "Nightmare" for January 30, 2006
Hi,

Yup the digit 7 is the key for this Sudoku.
Looking it from the point of view of the DIC (Double Implication Chains) by starting from a pair, it can also be solved.

Here the key for the solutio ...
  Topic: Would USA Today run an unsolvable/multiple solution puzzle?
someone_somewhere

Replies: 10
Views: 31305

PostForum: Other puzzles   Posted: Sun Feb 05, 2006 10:54 am   Subject: Would USA Today run an unsolvable/multiple solution puzzle?
Thank you David. You can explain better than me.

P.S. I was in a project "on the field" in a different country, and I had no time except for sleeping and toilet. The rest was like solving Sudoku.
Now ...
  Topic: Would USA Today run an unsolvable/multiple solution puzzle?
someone_somewhere

Replies: 10
Views: 31305

PostForum: Other puzzles   Posted: Sun Jan 29, 2006 8:54 am   Subject: Would USA Today run an unsolvable/multiple solution puzzle?
Hi,
This one is special ...
. . . . . 1 2 . .
. 3 . . 2 4 5 . .
. 6 2 . 5 7 . . .
5 . . . 6 . . . 7
2 . . . 4 . . . 8
9 . . . 3 . . . 1
. . . 4 . . 1 9 .
. . 8 5 . . . 6 .
. ...
  Topic: Two Puzzles
someone_somewhere

Replies: 2
Views: 12910

PostForum: Other puzzles   Posted: Sun Jan 29, 2006 8:25 am   Subject: Two Puzzles
Hi,
The second one is also nice:
2 . . . . . . . .
7 1 6 . . . . . .
5 . . 6 . . 1 7 9
. 7 . 1 . 3 . . .
. . 2 5 . 6 4 . .
. . . 2 . 8 . 9 .
8 9 5 . . 4 . . 1
. . . . . . 2 4 3 ...
  Topic: Two Puzzles
someone_somewhere

Replies: 2
Views: 12910

PostForum: Other puzzles   Posted: Sun Jan 29, 2006 8:08 am   Subject: Two Puzzles
Hi,

after setting 22 digits in the:
2 5 . 8 . . . . .
. . . . 9 . 8 . 2
9 . . 4 . 7 . . .
6 4 . . . . . 9 .
. 9 . 1 . 3 . 4 .
. 7 . . . . . 2 1
. . . 5 . 4 . . 7
7 . 6 . 8 . . ...
  Topic: Nightmare
someone_somewhere

Replies: 9
Views: 24592

PostForum: Other puzzles   Posted: Sun Jan 22, 2006 8:53 am   Subject: Nightmare
Hi,

The distribution of 6's is relly BEAUTIFULL.
If we eliminate first the one from r2c9 we are left with exact 2 occurences of digit 6 in every block!

It would be a pitty to distroy it with the XY- ...
  Topic: Where are the solutions?
someone_somewhere

Replies: 7
Views: 15463

PostForum: Daily Sudoku puzzles   Posted: Sun Jan 22, 2006 8:17 am   Subject: Where are the solutions?
Hi Alan,

If you would be a girl, I could get in love with you.
We have the same understanding of Sudoku.

Looking always for a puzzle that puts new problems for solving it!
How we solve it - that's t ...
  Topic: Saturday Puzzle Jan 21
someone_somewhere

Replies: 5
Views: 16628

PostForum: Other puzzles   Posted: Sun Jan 22, 2006 8:07 am   Subject: Saturday Puzzle Jan 21
Hi,

After the first 25 digits, I detected a Naked Triple 3 5 7 in 3x3 Block 4.
Could so eliminate 5 from r4c5 and 7 from r5c4.
So I could pinpoint other 3 digits:
5 in r4c3 - Unique Horizontal
7 ...
  Topic: Nightmare
someone_somewhere

Replies: 9
Views: 24592

PostForum: Other puzzles   Posted: Sat Jan 21, 2006 12:56 pm   Subject: Nightmare
Hi,

I found a Hidden Triple 5 7 8 in r1c8 r2c7 r2c8
and could eliminate 6 from r1c8, r2c7, r2c8.

Sometimes later, I found Hidden Pair 3 8 in r8c3 and r9c2 (in 3x3 Block)
and could eliminate it from ...
 
Page 1 of 14 Goto page 1, 2, 3 ... 12, 13, 14  Next
All times are GMT
Jump to:  


Powered by phpBB © 2001, 2005 phpBB Group