did anyone else notice that the puzzle on todays programme had two answers or have i missed something
is this unusual as i have not seen this before
richard&judy
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by Animator » Wed May 04, 2005 8:43 pm
Ok, you are right, that seems to be the one... (the mild one)
it does has multiple solutions... now the question is wheter or not that was intended...
Wayne, do you know anything about the puzzles in this show?
I tried solving it myself, and I entered it in one solver, which failed.
The point where it get stuck:
it does has multiple solutions... now the question is wheter or not that was intended...
Wayne, do you know anything about the puzzles in this show?
I tried solving it myself, and I entered it in one solver, which failed.
The point where it get stuck:
2 7 1 | 4 5 6 | 9 3 8
* 5 6 | * 8 * | 1 4 *
* * 4 | * * 1 | 5 * *
---------------------
5 6 8 | 1 2 9 | 4 7 3
4 1 3 | 6 7 8 | 2 5 9
7 2 9 | 3 4 5 | 6 8 1
---------------------
6 * 2 | * * * | 7 1 5
* * 5 | * 1 * | 3 * *
1 3 7 | 5 6 2 | 8 9 4
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by Guest » Wed May 04, 2005 8:56 pm
i kkept going with unique solutions to the folowing position
2 7 1 | 4 5 6 | 9 3 8
9 5 6 | 2 8 3 | 1 4 7
3 8 4 | 7 9 1 | 5 * *
---------------------
5 6 8 | 1 2 9 | 4 7 3
4 1 3 | 6 7 8 | 2 5 9
7 2 9 | 3 4 5 | 6 8 1
---------------------
6 9 2 | 8 3 4 | 7 1 5
8 4 5 | 9 1 7 | 3 * *
1 3 7 | 5 6 2 | 8 9 4
on the tv programme they didnt mention it had multiple solutions
2 7 1 | 4 5 6 | 9 3 8
9 5 6 | 2 8 3 | 1 4 7
3 8 4 | 7 9 1 | 5 * *
---------------------
5 6 8 | 1 2 9 | 4 7 3
4 1 3 | 6 7 8 | 2 5 9
7 2 9 | 3 4 5 | 6 8 1
---------------------
6 9 2 | 8 3 4 | 7 1 5
8 4 5 | 9 1 7 | 3 * *
1 3 7 | 5 6 2 | 8 9 4
on the tv programme they didnt mention it had multiple solutions
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by Animator » Wed May 04, 2005 9:05 pm
That's strange... are you sure you haven't made a guess somewhere?
I used this solver: http://act365.com/sudoku/ (ofcourse with guessing unchecked!) and it stops at the same point as me...
For the record, the other two puzzles on that page are correct...
I used this solver: http://act365.com/sudoku/ (ofcourse with guessing unchecked!) and it stops at the same point as me...
For the record, the other two puzzles on that page are correct...
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by Animator » Wed May 04, 2005 9:10 pm
I solved the mystery...
I checked my collection of Times's puzzle, and found out that this puzzle is the same as the one published in the Times on 26 April (except for the 3th row).
You can see the puzzle at:[url=http://www.timesonline.co.uk/article/0,,18209-1584981,00.html] http://www.timesonline.co.uk/article/0,,18209-1584981,00.html[/url]
Wayne, can you contact the creators of that show and inform them that you can give them free puzzles? (or maybe contact the Times, informing them that someone is publishing the same puzzle(s)...)
I checked my collection of Times's puzzle, and found out that this puzzle is the same as the one published in the Times on 26 April (except for the 3th row).
You can see the puzzle at:[url=http://www.timesonline.co.uk/article/0,,18209-1584981,00.html] http://www.timesonline.co.uk/article/0,,18209-1584981,00.html[/url]
Wayne, can you contact the creators of that show and inform them that you can give them free puzzles? (or maybe contact the Times, informing them that someone is publishing the same puzzle(s)...)
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by Pappocom » Wed May 04, 2005 9:54 pm
Hello All.
The problem seems to be that whoever did the graphic for the website has missed out two clues which should appear in the 3rd row of the grid. There should be a 3 at the left end and a 6 at the right end.
Copying a puzzle from one place to another often seems to be a greater challenge than the Sudoku puzzle itself!
You can tell that something is missing, if only because the symmetry of the puzzle is destroyed. You need a clue at each extremity of the 3rd row to complete the symmetry.
I was given a heads-up about the "Richard and Judy" program, just a few hours before it aired. For non-UK residents, the "Richard and Judy" program is a popular talk show which airs at 5.00 pm on Channel 4.
One of the guests on the show was Michael Harvey, Features Editor of The Times, so I guess the puzzle was used with The Times' authority, and it was (somewhat circuitously) acknowledged as one of my puzzles.
I'll see if I can get it fixed.
I note also that the "Easy" (Very Easy) puzzle shown at the bottom of the Richard & Judy website page is missing a 9 in r3c3, which is needed in order to make the puzzle symmetrical.
- Wayne
The problem seems to be that whoever did the graphic for the website has missed out two clues which should appear in the 3rd row of the grid. There should be a 3 at the left end and a 6 at the right end.
Copying a puzzle from one place to another often seems to be a greater challenge than the Sudoku puzzle itself!
You can tell that something is missing, if only because the symmetry of the puzzle is destroyed. You need a clue at each extremity of the 3rd row to complete the symmetry.
I was given a heads-up about the "Richard and Judy" program, just a few hours before it aired. For non-UK residents, the "Richard and Judy" program is a popular talk show which airs at 5.00 pm on Channel 4.
One of the guests on the show was Michael Harvey, Features Editor of The Times, so I guess the puzzle was used with The Times' authority, and it was (somewhat circuitously) acknowledged as one of my puzzles.
I'll see if I can get it fixed.
I note also that the "Easy" (Very Easy) puzzle shown at the bottom of the Richard & Judy website page is missing a 9 in r3c3, which is needed in order to make the puzzle symmetrical.
- Wayne
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- Joined: 05 March 2005
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