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WPF Sudoku Grand Prix — Indian Round — 9th - 11th February 2013187 posts • Page 7 of 8 • 1 2 3 4 5 6 7 8
@ 2013-02-13 10:42 PM (#9960 - in reply to #9959) (#9960) Top

Para



Posts: 315
100100100
Country : The Netherlands

Para posted @ 2013-02-13 10:42 PM

driv4r - 2013-02-13 10:26 PM

Hey, about step 1: how can e only go to t? Why not y?


Because then R5C1 would have to be 9 in the left grid and you already have a 9 in R4C3 there (e could be in y but y can't be in e). I think that's a big part of what I missed, thinking in both directions.

Edited by Para 2013-02-13 10:44 PM
@ 2013-02-13 11:38 PM (#9963 - in reply to #9566) (#9963) Top

Para



Posts: 315
100100100
Country : The Netherlands

Para posted @ 2013-02-13 11:38 PM

Thanks Deb. This helped a lot.
@ 2013-02-13 11:44 PM (#9964 - in reply to #9959) (#9964) Top

UllaE



Posts: 9

Country : Finland

UllaE posted @ 2013-02-13 11:44 PM

driv4r - 2013-02-13 8:26 PM

Hey, about step 1: how can e only go to t? Why not y?


If you copy the digits from y to e, you will then have two 9s in same box.
@ 2013-02-14 12:39 AM (#9965 - in reply to #9566) (#9965) Top

mahoned_91770



Posts: 6

Country : United States

mahoned_91770 posted @ 2013-02-14 12:39 AM

 How balanced do you think the puzzle types of this test were? Fairly balanced
 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 How did you feel about the length / time limit for this test? Just right
 Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? All puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2013-02-14 3:51 AM (#9966 - in reply to #9566) (#9966) Top

sbeck



Posts: 5

Country : United States

sbeck posted @ 2013-02-14 3:51 AM

Great job on running the tournament. Are there full scores combining Events #1 & 2?
@ 2013-02-14 4:05 AM (#9967 - in reply to #9566) (#9967) Top

An LMI player



An LMI player posted @ 2013-02-14 4:05 AM

 How balanced do you think the puzzle types of this test were? A bit skewed
 What was your opinion of the distribution of easy/hard puzzles? Too many hard puzzles
 What did you think about the puzzle quality of the test? Fairly Nice
 How did you feel about the length / time limit for this test? A bit too many puzzles
 Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? All puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2013-02-14 7:33 AM (#9969 - in reply to #9960) (#9969) Top

driv4r



Posts: 6

Country : Estonia

driv4r posted @ 2013-02-14 7:33 AM

Para - 2013-02-13 4:42 PM

driv4r - 2013-02-13 10:26 PM

Hey, about step 1: how can e only go to t? Why not y?


Because then R5C1 would have to be 9 in the left grid and you already have a 9 in R4C3 there (e could be in y but y can't be in e). I think that's a big part of what I missed, thinking in both directions.


Oh, now I can see that y can't go to e indeed. But I didn't know that the rows need to be swapped with each other. For example in case of e and y I would think that y could go to any of the rows in the left grid (that it fits into) and doesn't necessarily need to replace e I guess I have misunderstood the rules

EDIT: Just checked the rules again and it doesn't say that the rows need to be swapped with each other! So how was I supposed to know?

Edited by driv4r 2013-02-14 7:44 AM
@ 2013-02-14 8:48 AM (#9970 - in reply to #9969) (#9970) Top

MellowMelon



100
Country : United States

MellowMelon posted @ 2013-02-14 8:48 AM

If row e maps to y, and then row y maps to some other row like a, that means a and e are two identical rows in the same grid. Can that ever happen in Sudoku?
@ 2013-02-14 2:25 PM (#9972 - in reply to #9941) (#9972) Top

jitendradayma



Posts: 3

Country : India

jitendradayma posted @ 2013-02-14 2:25 PM

may be u didn't submit yr answer of column abd rows which were marked A B
@ 2013-02-14 2:31 PM (#9973 - in reply to #9566) (#9973) Top

wgryciuk



Posts: 24
20
Country : Poland

wgryciuk posted @ 2013-02-14 2:31 PM

 How balanced do you think the puzzle types of this test were? Perfectly balanced
 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 How did you feel about the length / time limit for this test? Just right
 Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2013-02-14 7:48 PM (#9975 - in reply to #9566) (#9975) Top

riccared



Posts: 7

Country : ITALY

riccared posted @ 2013-02-14 7:48 PM

Hello, and thumbs up for the game! Is it possible to have the complete solutions of the different sudokus? Thanks,
Riccared
@ 2013-02-14 7:52 PM (#9976 - in reply to #9975) (#9976) Top

Administrator



20001000500202020
Country : India

Administrator posted @ 2013-02-14 7:52 PM

riccared - 2013-02-14 7:48 PM

Hello, and thumbs up for the game! Is it possible to have the complete solutions of the different sudokus? Thanks,
Riccared
When we removed the password from the pdf, we also added the solutions at the end. Please download the pdf and check.

Link
@ 2013-02-14 8:46 PM (#9977 - in reply to #9566) (#9977) Top

riccared



Posts: 7

Country : ITALY

riccared posted @ 2013-02-14 8:46 PM

Oh-ohh....... I suppose I'd have better to check before asking.... Many thanks, bye!
@ 2013-02-15 12:54 AM (#9983 - in reply to #9970) (#9983) Top

driv4r



Posts: 6

Country : Estonia

driv4r posted @ 2013-02-15 12:54 AM

MellowMelon - 2013-02-14 2:48 AM

If row e maps to y, and then row y maps to some other row like a, that means a and e are two identical rows in the same grid. Can that ever happen in Sudoku?


Oh yea, that's a good logic but I couldn't figure it out I guess I didn't get the logic of duplicates needing to replace each other. But still it would have been better and more clear if it would have been mentioned in the instructions that 2 rows (duplicates) need to be swapped, no? That's the reason why I didn't get this one solved
I have never encountered a sudoku like this before, so for me it wasn't obvious.
@ 2013-02-15 1:46 AM (#9984 - in reply to #9983) (#9984) Top

prasanna16391



Posts: 1802
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Country : India

prasanna16391 posted @ 2013-02-15 1:46 AM

driv4r - 2013-02-15 12:54 AM

Oh yea, that's a good logic but I couldn't figure it out I guess I didn't get the logic of duplicates needing to replace each other. But still it would have been better and more clear if it would have been mentioned in the instructions that 2 rows (duplicates) need to be swapped, no? That's the reason why I didn't get this one solved
I have never encountered a sudoku like this before, so for me it wasn't obvious.


Well, a lot of solving skills depend on the solver's ability to figure out the implied restrictions in addition to the main lettered ones. The rules are just constraints on a puzzle, how they affect the solve is for the solver to see.

Figuring out the implied non-literal implications of rules is part of puzzling. For example, now, you'd think the sentence "Place 1-9 in every row, column and box" is enough to describe a classic, but I've come across beginners who still don't figure out for a while that that implies that a number can't repeat.
@ 2013-02-15 7:47 AM (#9986 - in reply to #9566) (#9986) Top

driv4r



Posts: 6

Country : Estonia

driv4r posted @ 2013-02-15 7:47 AM

Well yea, you are probably right. Next time I encounter this linked classics sudoku I know better for sure ;)
@ 2013-02-15 1:52 PM (#9988 - in reply to #9566) (#9988) Top

debmohanty




1000500100100100202020
Country : India

debmohanty posted @ 2013-02-15 1:52 PM

After linked Classics, Odd Even Big Small was the least submitted/solved puzzles.

Here are few steps to get you started.

Here is the puzzle.



Step 0 :
Figure out that there are no Japanese characters and it must be part of solving to figure out the symbol-property relationship.

Step 1 :
Note 2 key cells : R7C3 and R7C6. Both of them cannot contain 1 or 4 or 6. Because of that R8C1 and R8C8 cannot be 1 or 4 or 6. A lot of deduction will use this.

Step 2 :
See the cells in Red. They all belong to one outlined region. Also note that all four of them must satisfy the property of SQUARE.
Spoiler: show

So clearly SQUARE cannot be Odd or Small (1 is given in the region)
It also cannot be Even because 4 does not go anywhere in the Red cells.
So SQUARE = Big (5678)
You also get R4C1=6 and some more 6s.

Spoiler: show


Step 3 :
Because R6C8=6, you get the 4SQUARES as Even (2468).
Spoiler: show


Some more deductions (you can first find the red ones, and then the blue ones)
Spoiler: show


Because of the circle at bottom of C7, we can say circle = Small (1234) and Star = Odd (1357)
Spoiler: show

@ 2013-02-15 4:52 PM (#9989 - in reply to #9566) (#9989) Top

An LMI player



An LMI player posted @ 2013-02-15 4:52 PM

 How balanced do you think the puzzle types of this test were? A bit skewed
 What was your opinion of the distribution of easy/hard puzzles? Too many hard puzzles
 What did you think about the puzzle quality of the test? Fairly Nice
 How did you feel about the length / time limit for this test? A bit too many puzzles
 Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


@ 2013-02-17 10:14 PM (#10002 - in reply to #9566) (#10002) Top

Karel Tesar



Posts: 28
20
Country : Czech Republic

Karel Tesar posted @ 2013-02-17 10:14 PM

Are you going to participate in 3rd tournament of WPF GP?
Try to practice on DSM WPF Sudoku Grand Prix!

In our Daily League we are preparing for you these sudoku variants:
18.02.2013 - Between 1 and 9 (practice on DSM WPF Sudoku GP)
19.02.2013 - Equal Sudoku (practice on DSM WPF Sudoku GP)
20.02.2013 - Search Nine Sudoku (practice on DSM WPF Sudoku GP)
21.02.2013 - Arrow Sudoku (practice on DSM WPF Sudoku GP)
22.02.2013 - X-Sums Sudoku (practice on DSM WPF Sudoku GP)
23.02.2013 - Little Killer Killer Sudoku (practice on DSM WPF Sudoku GP)
24.02.2013 - Skyscrapers (practice on DSM WPF Sudoku GP)

http://sudokucup.com/node/1901
@ 2013-02-18 9:02 AM (#10008 - in reply to #10002) (#10008) Top

Administrator



20001000500202020
Country : India

Administrator posted @ 2013-02-18 9:02 AM

Cumulative results after first 2 rounds available here - http://www.worldpuzzle.org/sudokugp/results/
@ 2013-02-18 4:25 PM (#10010 - in reply to #9566) (#10010) Top

rajeshk




Posts: 542
5002020
Country : India

rajeshk posted @ 2013-02-18 4:25 PM

For me the first round points are not added in the commulative result. Any idea how I can get it corrected?

@ 2013-02-19 2:26 AM (#10015 - in reply to #9566) (#10015) Top

Karel Tesar



Posts: 28
20
Country : Czech Republic

Karel Tesar posted @ 2013-02-19 2:26 AM

rajeshk: Can you contact me via email please? Write your name and surname on my email at info@sudokucup.com. I was preparing all result lists of WPF GP.
@ 2013-02-19 11:25 AM (#10020 - in reply to #9566) (#10020) Top

rajeshk




Posts: 542
5002020
Country : India

rajeshk posted @ 2013-02-19 11:25 AM

Thanks Karel,
I have send you email.

WPF Sudoku Grand Prix — Indian Round — 9th - 11th February 2013187 posts • Page 7 of 8 • 1 2 3 4 5 6 7 8
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