Grand Slam Sudoku
(Eingestellt am 25. Januar 2021, 23:41 Uhr von steelwool)
It's Contract Bridge time in Sudoku-land! (No actual knowledge of bridge is required to solve the puzzle.)
South deals and opens 7NT, claiming all 13 tricks the second the lead goes down.
He has all four aces, plus 9 other cards that will take all 13 tricks.
The hand is solid against any distribution. (*)
The thirteen cards are present on the board, in coded form, in the thirteen cells inside the spade and heart symbols.
An Ace is represented as 1 (and he has all 4). A King is represented as 2, a Queen as 3, a Jack as 4, the 10 as 5. The cards 2 to 9 are represented as themselves.
All the red heart cells contain even digits, and all the grey spade cells contain odd digits (the boundary, not the inner part.)
The sum of the cells inside the heart and spade areas are the same.
A little thought will narrow the options of the cards that make up the hand, then you can use them to solve the sudoku.
Play the puzzle on F-puzzles
(*) To be sure of tricks, this is how a suit would need to be held (there are four suits).
| Length of suit | Holding to ensure all the tricks in the suit |
|---|---|
| 1 | A |
| 2 | AK |
| 3 | AKQ |
| 4 | AKQJ |
| 5 | AKQJ 10 |
| 6 | AKQJ 10 9 |
Lösungscode: Enter the digits from row 3 followed by the digits from row 5.
Kommentare
am 28. Januar 2021, 20:30 Uhr von Narayana
Reply From Narayana to my hidden comment below: Maybe my choice of words was not the best but I think you totally misunderstood my two comments. I will address them now.
-Star color: When I said “this results in more and more ‘blue stars’ ”
I was NOT talking about the number of stars in your puzzle I meant more and more puzzles with little to no solves. I am not making this stuff up you can see it in your own puzzles, very few have more than 10 solves. This is happening all across with many great puzzles getting buried because they are coming in so fast and the number of people solving has not increased at the same rate which brings me back to my original argument many new users come here to post their first puzzle before first solving other puzzles. I did not say you or GremlinSA are in this category as you both are solvers as well as setters. So I am sorry if this sounded like a personal attack.
I actually want to elaborate more on Blue stars. Blue means that a puzzle has not received enough votes for the votes to be revealed (minimum 10 votes) so the given number is what the setter estimates is the difficulty. As a setter you are in your right to set the difficulty. Estimating your own puzzle difficulty is not something easy because it is so subjective. A lot of great setters underestimate or over estimate the number of stars but that is totally fine because the votes correct themselves once enough people solve and at the end of the day the rating is just a guide. In fact as a matter of principle I decided long ago to stop telling people if their puzzle was easier that I expected because who am I to undervalue the setters work? Maybe I have a few comments out there where I let somebody know that their puzzle was too hard for me but I make sure the comment is a clear compliment and keep it hidden on top of that as to not influence other people.
Finally here is my personal philosophy on Hints and spoilers.
1) As a solver I should never reveal in a plain [straight] comment the strategy or break in to somebody else’s puzzle. That is why red comments exist so that in hidden people can talk to the setters or among successful solvers how they solved the puzzle.
2) As a solver when another future-solver request help on a hidden comment like for example “I was doing fine until I hit a road block in box 5 here is a link to my progress. What am I doing wrong” Then it is ok to reply something like “R5C6 is wrong” or “have you considered all the possibilities for C6” I would never reply something like “there are already 4 cells in column 6 that have an even parity and R5C6<3 therefore R5C6=1” the first two are comments that only make sense to whoever asked for help the other comment makes sense to everybody and spoils one cell maybe even the whole puzzle.
3) As a setter I am totally happy to give individual hints to people by editing their hidden comments because only they and people who see red can see the edit. I have seen this done many many times and many people agree is good form.
4) As a setter you should feel free to put as many hints in the body of the puzzle as you want after all it is your own puzzle. There is nothing wrong with hints but good form is to obfuscate the hints so that your audience can choose if and when to reveal such hints. Obfuscation can only be done in the main body by changing the html color of the text or background that is why I advise setters to put the hints on the body and not on the comments.
For an example of this see id=00049R which has obfuscation in white and also the hints label.
But again as a setter you have a right to decide how and how much to hint. As a solver one has no right to spoil somebody else’s puzzle.
The above comments are now hopefully not just a long rant but instead helpful information for new solvers and setters. I am also linking to one flood discussion in the forum which might be of interest.
http://forum.logic-masters.de/showthread.php?tid=1824
Please feel free to leave, hide or delete this after reading.
am 26. Januar 2021, 21:49 Uhr von GremlinSA
I still cant believe that im the only one to solve this one after almost 24 hours??
Its really not that hard!!
Is it 2 star instead of 3 do you think? Did you parity colour the board to start?
