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Diagonal Vision Author
Posts: 337
 
Location: Switzerland | debmohanty - 2011-09-28 7:53 PM
While testing the sudokus, Rakesh asked me if it is allowed make 2 copies of the booklet. I didn't answer his question, but I think he printed only a single copy.
There is discussion in sudokuvariante forum that one of the strategy could be printing 2 copies, and solving using different rules on separate copies.
The reasons I'm bringing it up here is
1) I want to make sure that everyone knows that this is a strategy that some player might want to follow
2) More importantly, I feel, just like an offline competition where only one set of printout is allowed, one should use only one set of printout for this test.
3) Most importantly, without revealing much about what to expect in actual sudokus, I can say that printing two copies will not help one solving faster.
I read this on Hideaki Jo's blog first. I'm not sure I understood well, because I'm not a specialist of japanese translation  . I thought it was an interesting point, so I report this on my forum. Thanks for clarifying (and for reading sudokuvariante ) !
Fred |
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Location: India | Fred76 - 2011-10-01 6:42 AM
I thought it was an interesting point, so I report this on my forum. !
Precisely the same reason I posted in this forum :-) and my French is probably as good as your Japanese
Edited by debmohanty 2011-10-01 6:47 AM
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Location: India | Attention :
If you are solving online, you need not submit again using paper mode. It consumes time and error prone. |
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Location: United States | Excellent puzzles. Thanks for the fun test! |
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Location: United States | Deb - Really well done, nice set of puzzles. Enjoyed it! Cheers, Dave |
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WCPN Author
Posts: 191
Location: The Netherlands | Really nice and very beautiful puzzles Deb!
I enjoyed
- the grids themselves and
- the solving
both very much!
Thanks |
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Posts: 328
Location: India | Wonderful as expected................Thanks a lot Deb for making me enjoy the weekend |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1782
Location: India | Really nice puzzles. Was just probably 10 seconds away from completing an LMI test for the first time. Ah well guess I'll have to wait longer :P But really enjoyed it. |
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Posts: 23
Location: United States | Big fan of this variant test. Not a fan of killer sudokus, or non-9x9's in contests. When you stay within the constraints of the usual and just add little extra constraints you can rely on all your standard sudoku techniques and just look for the extra direction. First time I have ever bonused on LMI, so very happy about that as well.
Love this site and appreciate all the time that you put in constantly to keep me and all the other world puzzlers entertained.
Much thanks.
TheSubro |
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Posts: 123
Location: India | The puzzles are very well designed. Thanks a lot Deb.
Though I am not a fan of sudoku I enjoyed the test a lot.
I liked one thing about the test i.e the two variants concept, in usual tests each sudoku is of only one type but in this I guess almost all the variants are covered in such a way, that to solve you need to know both the variants mentioned for each sudoku, thus making everyone to learn more than one variant (atleast in my case) :)
Thanks
Ravi. |
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Location: United Kingdom | Very enjoyable test, although can I put a request in for 6 extra points? I finished the Sequence/Palindrome puzzle early on in the test, but I noticed I hadn't input the answer when I was checking everything at the end. I hurriedly input the answer key and pressed 'submit' with about 6 seconds remaining but I was told that I couldn't submit as the test was over. It hardly makes a difference to my position but at least I will feel my time solving that puzzle wasn't wasted!
Thanks
Rodders |
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Location: India | Sudoku A or B is now over. Thank you everyone for taking time to participate. Hope you enjoyed the easy set.
Top 3 : motris (76:04), TiiT (76:16), Fred76 (84:12)
17 other players completed all sudokus correctly before time. Congratulations everyone.
LMI sudokus tests have been bit hard in last few months. Here are the number of players completing all sudokus in last 5 months - May : 0, Jun : 1, Jul : 0, Aug : 0, Sep : 0. So I decided to keep this test bit longer than needed so that many players get a chance to try and complete all sudokus. I am really happy to see that apart from the regular ones, many new players have completed the set.
About the Sudokus : Apart from Odd Even View / Outside view, most sudokus were easy. I think it was possible to find the logic to determine the correct rule for each sudoku. I'm glad that everyone generally liked the concept of A/B, but I felt I could have used more interlinking uses of the rules in some cases to make the grids more interesting. I'm not sure if I could have achieved that without raising the difficulty level. All I can say is, I'm really tempted to write "Sudoku C or D" sometime in the future.
Some stats :
# of participants : 204
# of Non zero scores : 170
# of players submitting all sudokus : 29
# of players getting all sudokus correct : 20
Average time for the 20 players : 102 minutes
3 best buddies get India top 3 positions : Rohan(97:28), Pras and Tejal. |
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Location: India | Many thanks to Branko and Rakesh for pre testing the Sudokus. Branko's timing were especially impressive.
Thanks to David Millar for creating the logo. |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1782
Location: India | Looking forward to C or D :D |
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WSPC Organizer
Posts: 739
Location: India | The fun on the 'A or B' style of solving is to first solve the grid as a normal classic, get as many numbers as possible, and then try to find a contradiction in one of the rules, rather than choosing one and solving until you go wrong or reach the solution. Most of the sudokus were so neatly made. Even/Neighbours and Quadro/MultiTable were phenomenal!
C or D definitely on the cards. |
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Mean Minis (2020) Author
Posts: 774
Location: India | I found half of the grids tough while test solving. However, finding the right variant was mostly easy and elegant.
Looked at the score and noticed that the ratings (as of now) hover between 7.46 and 8.25 for all sudokus - which effectively means that the grids had consistent quality about them and almost all sudokus were highly rated by at least some competitors. Probably this test has the lowest standard deviation ever across grids. |
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Location: India | rakesh_rai - 2011-10-03 10:41 AM
Looked at the score and noticed that the ratings (as of now) hover between 7.46 and 8.25 for all sudokus - which effectively means that the grids had consistent quality about them and almost all sudokus were highly rated by at least some competitors. Probably this test has the lowest standard deviation ever across grids.
That is a close observation, and you are certainly right that standard deviation is lowest here. Here is top 5 tests with low standard deviations (after we introduced 10-pointer ratings)
Another stat of minor importance : Marked Quadro / Multiplication Table is the first puzzle to be submitted by more than 100 players (125 to be precise), still being 100% correct. The next best was Skyscrapers sudoku (Small) in Logidoku by 81 players. |
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Diagonal Vision Author
Posts: 337
Location: Switzerland | TiiT - 2011-09-28 10:55 AM
I should always read all the rules more carefully.
It looks like you are very strong when you read the rules carefully  . You were very close to win a monthly test ! I hope you'll not read WSC' instructions booklet carefully 
Thanks for the fun test. Deb, you have accustomed us to magnificent grids, it was still the case this time.
Since November 2010, I had not made such a performance on LMI monthly test. It's very encouraging for next month, even if the truth of the day is not the truth of next day.
Fred |
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Posts: 139
Location: Estonia | Fred76 - 2011-10-04 11:59 AM
It looks like you are very strong when you read the rules carefully . You were very close to win a monthly test ! I hope you'll not read WSC' instructions booklet carefully
Fred
Thanks Fred! It was great test for me, because I didn't do mistakes (like sometimes happens). Also I was able to find the correct rules and solve them without any longer pauses, so It went quickly for me. Only puzzle, I was a bit troubled, was the last one (I'd have liked outside much more), but It was the hardest one in this test anyway. Congrats to you too, Fred, and Thomas, ofcourse. This result means much to me.
Tiit |
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Location: India | Deb! Fabulous Test!!! :)
Thoroughly enjoyed solving it, just missed completing an LMI test, was acheivable. |
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Posts: 315
Location: The Netherlands | Thanks Deb, that was fun. Even though I made 2 mistakes.
My mistake for puzzle #2 was really dumb though and a bit miraculous. I determined the right rules quickly with the {45} pair in R12C1. Except somehow I continued solving with the opposite rule. And the puzzle also solves uniquely with that rule besides of course that {45} pair. I'm not sure if you were aware of this occurence, but it was somewhat a shocker to find out i got it wrong, till I realised what had happened. then it was more amazement that the puzzle still solved that way. |
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Location: India | It was such an easy puzzle, but you and aldentea submitted identical wrong solutions. Both being top players, I kept wondering what could be the problem, but never figured out.
No, I didn't know that it can be solved the other way except that 4/5 pair.
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Location: Japan | Para - 2011-10-04 4:32 AM
My mistake for puzzle #2 was really dumb though and a bit miraculous. I determined the right rules quickly with the {45} pair in R12C1. Except somehow I continued solving with the opposite rule.
That is just the same as what happened on me!
I'm glad that there exists another player who made such a CRAZY mistake. |
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Diagonal Vision Author
Posts: 337
Location: Switzerland | Funny mistake  !
It should have been worse for you if this "special rule" sudoku had been more difficult. I solve it with this "special rule" and I think the difficulty is roughly the same as the one with original rule. |
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Posts: 148
Location: France | Thanks Deb, this was really good and, in particular, extremely fun.
A fifth place is rather satisfying considering the number of stupidities I made - and will really have to avoid in one month :
1) trying to solve the Touchy as an Untouch,
2) not noticing that the "2" clue was not the only one on the Skyscraper,
3) spending 30' on the last puzzle ! I guess I was just a bit stressed after having solved the first 11 in less than an hour because I tried it again this morning, and it went well. Stupid.
Puzzles were very nice, including this last one, and really affordable.
Thanks again, and congrats to the toppers ! |
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A or B — LMI October Sudoku Test — 1st and 2nd October
