Login Register WSPC 2017 • Schedule • Participation • Location • WSC • WPC • Contact •Search •Recent





V2V — March Sudoku Test — 23rd-25th March 2013
   LMI Tests -> Monthly Sudoku and Puzzle Tests80 posts • Page 2 of 4 • 1 2 3 4
kishy72
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 11:06 AM (#10390 - in reply to #10230) (#10390) Top


SM 2020 (Math) Author

Posts: 417
100100100100
Location: India
 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? Too many hard puzzles
 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


A beautiful test.Many thnks to the author for this wonderful test.I had great fun solving the test.
Got a deja vu of the masyu puzzle in puzzle marathon after seeing the primes without any dots.It is a good way to take the players by surpise.The conventional thinking gets disrupted totally.I was hoping to tackle this puzzle by making pencil marks of 1379 at the end of the dots. Because of the surprise factor this puzzle took me more time to solve than the hot/cold thermometer!
Hope to solve the remaining puzzles some time later.
One thing i would love to add here is the practise puzzles that the author posted before the test laying the foundation for the test beautifully.
Excellent test!!!I really enjoyed it!!



Richard
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 11:27 AM (#10391 - in reply to #10390) (#10391) Top


WCPN Author

Posts: 191
10020202020
Location: The Netherlands
kishy72 - 2013-03-24 11:06 AM

A beautiful test.Many thnks to the author for this wonderful test.I had great fun solving the test.
Got a deja vu of the masyu puzzle in puzzle marathon after seeing the primes without any dots.It is a good way to take the players by surpise.The conventional thinking gets disrupted totally.I was hoping to tackle this puzzle by making pencil marks of 1379 at the end of the dots. Because of the surprise factor this puzzle took me more time to solve than the hot/cold thermometer!
Hope to solve the remaining puzzles some time later.
One thing i would love to add here is the practise puzzles that the author posted before the test laying the foundation for the test beautifully.
Excellent test!!!I really enjoyed it!!





Thanks a lot for your kind words!

I will be happy to post full feedback on (practise) puzzles after the test is over.
PuzzleScott
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 12:03 PM (#10392 - in reply to #10230) (#10392) Top




Posts: 42
2020
Location: United States
What do the instructions mean, in Perfects Squares and Primes, when they say "This constraint is not valid for vertically adjacent cells"?

Does it mean vertically adjacent cells aren't constrained, so they can even have or not have the pattern? (square or prime)

Or does it mean no two vertically adjacent cells can have the pattern? If the latter, kropki-like puzzles usually handle that by the presence or absence of a square or diamond, without a confusingly worded rule.
Richard
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 12:10 PM (#10393 - in reply to #10392) (#10393) Top


WCPN Author

Posts: 191
10020202020
Location: The Netherlands
PuzzleScott - 2013-03-24 12:03 PM

What do the instructions mean, in Perfects Squares and Primes, when they say "This constraint is not valid for vertically adjacent cells"?

Does it mean vertically adjacent cells aren't constrained, so they can even have or not have the pattern? (square or prime)

Or does it mean no two vertically adjacent cells can have the pattern? If the latter, kropki-like puzzles usually handle that by the presence or absence of a square or diamond, without a confusingly worded rule.


...without a confusingly worded rule...

Of course I don't want to confuse solvers, but I thought this was the best way to clarify the rules. Sorry if it's not...

What I mean is that it doesn't matter what digit combination appears in the columns, primes, squares, doesn't matter, so your first interpretation Does it mean vertically adjacent cells aren't constrained, so they can even have or not have the pattern? (square or prime) is correct.
PuzzleScott
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 2:33 PM (#10394 - in reply to #10393) (#10394) Top




Posts: 42
2020
Location: United States
Thanks, that was my guess. Perhaps "constraint does not apply" instead of "constraint is not valid"?

Also, working the IB examples clarifies the question. Thanks!
An LMI player
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 4:59 PM (#10395 - in reply to #10230) (#10395) Top


An LMI Player with Sudoku ratings 500-
 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


rajeshk
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 5:35 PM (#10396 - in reply to #10230) (#10396) Top



WSPC Organizer

Posts: 542
5002020
Location: India
 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? A bit hard
 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? 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


Thanks for this great test. I really enjoyed solving it.
Gotroch
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 6:32 PM (#10398 - in reply to #10230) (#10398) Top




Posts: 83
20202020
Location: Czech Republic
 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


Fred76
Subject: RE: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 7:29 PM (#10399 - in reply to #10230) (#10399) Top



Diagonal Vision Author

Posts: 337
10010010020
Location: Switzerland
Thank you for this wonderful test !

The set was really enjoying, well balanced, and all sudokus were perfectly constructed.

On a personal note, I broke the thermo-sudoku 2 times and hadn't enough time the 3rd time (there was 3 minutes left). It's a pity, because without these mistakes, I think it was within my reach to solve all sudokus in 120 minutes.

Fred

P.S.: and I forgot to say that I look forward to solve more of your sudokus during the next DSM (and I hope without mistake)

Edited by Fred76 2013-03-24 7:36 PM
debmohanty
Subject: RE: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 7:51 PM (#10400 - in reply to #10399) (#10400) Top



1000500100100100202020
Location: India
Fred76 in WPF Sudoku Grand Prix — Indian Round

... thermo (even if I broke it twice and could not solve it during the competition time), ...

Fred


Fred76 in V2V — March Sudoku Test

... I broke the thermo-sudoku 2 times and hadn't enough time the 3rd time (there was 3 minutes left). ...

Fred



That is interesting co-incidence.
Fred76
Subject: RE: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 8:03 PM (#10401 - in reply to #10400) (#10401) Top



Diagonal Vision Author

Posts: 337
10010010020
Location: Switzerland
debmohanty - 2013-03-24 7:51 PM

Fred76 in WPF Sudoku Grand Prix — Indian Round

... thermo (even if I broke it twice and could not solve it during the competition time), ...

Fred


Fred76 in V2V — March Sudoku Test

... I broke the thermo-sudoku 2 times and hadn't enough time the 3rd time (there was 3 minutes left). ...

Fred



That is interesting co-incidence.


Phew !

I didn't remember that ! Perhaps next time I'll skip the thermo until I solved all other puzzles !

Fred
tamz29
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 8:34 PM (#10402 - in reply to #10230) (#10402) Top




Posts: 225
10010020
Location: Thailand
I went straight for the Greater Than X and systematically tried X=1,2,3,4,5. None worked for me. Can't wait for the answers and the intended solving path.
Basically this was a 100 minute test for me because that first puzzle took away 20 minutes with no points. :(

Great sudokus from Richard as usual. I liked how there's plenty of practise puzzles that are available before the test.
Zormac
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 8:34 PM (#10403 - in reply to #10230) (#10403) Top




Posts: 15

Location: Hungary
 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? Too many hard puzzles
 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? 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


An LMI player
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 8:53 PM (#10404 - in reply to #10230) (#10404) Top


An LMI Player with Sudoku ratings 500-
 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? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


Fred76
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 8:55 PM (#10405 - in reply to #10402) (#10405) Top



Diagonal Vision Author

Posts: 337
10010010020
Location: Switzerland
tamz29 - 2013-03-24 8:34 PM

I went straight for the Greater Than X and systematically tried X=1,2,3,4,5. None worked for me. Can't wait for the answers and the intended solving path.
Basically this was a 100 minute test for me because that first puzzle took away 20 minutes with no points. :(

Great sudokus from Richard as usual. I liked how there's plenty of practise puzzles that are available before the test.


I hesitated to write that the Greater than X was overvalued, because I found it not so hard...

Here is a way you can find X:

-box 4: there are 4 pairs: the only possibilities are 1,2,4 or 5.
-you can eliminate the 2 with the 4 and 6 in Row 9 (4 cannot be next to the 6). It remains 1,4 or 5
-you can eliminate the 5, because in box 8, 1 has to be "X-consecutive" and it cannot with the 6, already present in the box. ->1,4
-It's a bit more difficult to eliminate the 1: If you place the 2 in R1C6, then you have 1 and 2 in R78C4, then it's impossible to place the 3 in box 8 (cannot be next to 2 or 4, and it cannot be consecutive to another digit).

So X=4 !

Hope that helps !

Fred



uvo
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 9:05 PM (#10406 - in reply to #10230) (#10406) Top




Posts: 21
20
Location: Germany
Actually, I got X=4 very easily, but found the remaining Sudoku very difficult.
Richard
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 9:09 PM (#10407 - in reply to #10406) (#10407) Top


WCPN Author

Posts: 191
10020202020
Location: The Netherlands
uvo - 2013-03-24 9:05 PM

Actually, I got X=4 very easily, but found the remaining Sudoku very difficult.


I have written a full walk through for this puzzle, that will be published immediately after the test is over. The puzzle has a perfectly logical solve if you know the way.

But I like to publish the notes to all puzzles at once, so I ask for a little bit of patience...
An LMI player
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 9:20 PM (#10408 - in reply to #10230) (#10408) Top


An LMI Player with Sudoku ratings 500+
 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? A bit hard
 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? 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


Para
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-24 10:32 PM (#10410 - in reply to #10406) (#10410) Top




Posts: 315
100100100
Location: The Netherlands
uvo - 2013-03-24 9:05 PM

Actually, I got X=4 very easily, but found the remaining Sudoku very difficult.


Me too, getting X was really quick. The rest was a big problem and I still kept breaking it.
Bram28
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-25 2:26 AM (#10412 - in reply to #10230) (#10412) Top




Posts: 35
20
Location: The Netherlands
 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? Most puzzles were worth the right amount
 What was your opinion of the booklet formatting and printing? Just right


Thanks Richard! Nice puzzles!
skywalker
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-25 2:35 AM (#10413 - in reply to #10230) (#10413) Top


Sudoku Grand Prix - Serbian Round Author

Posts: 42
2020
Location: Serbia
 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


Richard, thanks for excellent test (nothing less expected).

Branko
Eykir
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-25 2:56 AM (#10414 - in reply to #10230) (#10414) Top




Posts: 11

Location: United States
 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? A bit hard
 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? 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


tamz29
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-25 5:23 AM (#10415 - in reply to #10230) (#10415) Top




Posts: 225
10010020
Location: Thailand
Yes I got X=4 as well. I had the 1-5, 2-6, 3-7, 4-8 pair laid out quickly and it didnt work.
Then I found out that 5-9 was also a pair and it still didnt work... :(
An LMI player
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-25 9:31 AM (#10417 - in reply to #10230) (#10417) Top


An LMI Player with Sudoku ratings 500-
 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? 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


An LMI player
Subject: Re: V2V — March Sudoku Test — 23rd-25th March 2013 @ 2013-03-25 11:22 AM (#10418 - in reply to #10230) (#10418) Top


An LMI Player with Sudoku ratings 500+
 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


80 posts • Page 2 of 4 • 1 2 3 4
Jump to forum :
Search this forum
Printer friendly version