Asian Sudoku Championship 2025
Sudoku Champs 2024
JPL2 — LMI November Puzzle Test — 30th Nov-2nd Dec 201349 posts • Page 1 of 2 • 1 2
@ 2013-11-29 3:45 PM (#13612 - in reply to #13561) (#13612) Top

swaroop2011




Posts: 668
500100202020
Country : India

swaroop2011 posted @ 2013-11-29 3:45 PM

Practice puzzles are awesome! Gave us clear idea about how to think about these puzzles.
Looking forward to the test :)
@ 2013-11-29 11:39 PM (#13616 - in reply to #13561) (#13616) Top

Administrator



20001000500202020
Country : India

Administrator posted @ 2013-11-29 11:39 PM


@ 2013-11-30 5:15 AM (#13618 - in reply to #13561) (#13618) Top

Administrator



20001000500202020
Country : India

Administrator posted @ 2013-11-30 5:15 AM

Announcements

  • Updated versions of IB (with points table) uploaded
  • Password protected PB uploaded. It has 12 pages, each page has 2 puzzles
  • Bonus = 8 points per minute saved, if all answers are submitted and there is at most 1 small mistake.
  • Remember to enter unit digit only in case of two digit numbers. The submission page will check only for unit digit.


  • @ 2013-11-30 7:44 PM (#13623 - in reply to #13561) (#13623) Top

    ladyleatherneck



    Posts: 4

    Country : United States

    ladyleatherneck posted @ 2013-11-30 7:44 PM

    I don't see the link for the password. What am I missing? thanks
    @ 2013-11-30 8:13 PM (#13624 - in reply to #13623) (#13624) Top

    Administrator



    20001000500202020
    Country : India

    Administrator posted @ 2013-11-30 8:13 PM

    ladyleatherneck - 2013-11-30 7:44 PM

    I don't see the link for the password. What am I missing? thanks
    You have to first login at the submission page ( http://logicmastersindia.com/2013/11P/ ). Then click on "Start Japanese Puzzle Land 2". You will see the password. From the database log, we see that you have not "started" the test yet. After you start, you will have 2 hours to solve and submit as many puzzles.

    Please check the F.A.Q. which explains these steps with some images. Please post here if something is not clear.
    @ 2013-11-30 8:45 PM (#13625 - in reply to #13624) (#13625) Top

    ladyleatherneck



    Posts: 4

    Country : United States

    ladyleatherneck posted @ 2013-11-30 8:45 PM

    Thanks. Looked to me like I was logged in.
    @ 2013-11-30 8:49 PM (#13626 - in reply to #13561) (#13626) Top

    chaotic_iak




    Posts: 241
    1001002020
    Country : Indonesia

    chaotic_iak posted @ 2013-11-30 8:49 PM

     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
     What was your opinion about the answer key extraction? Mostly perfect answer keys
     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 the point values reflect the difficulty? Most puzzles were worth the right amount
     What was your opinion of the booklet formatting and printing? Just right


    @ 2013-11-30 10:49 PM (#13628 - in reply to #13561) (#13628) Top

    auroux



    Posts: 145
    1002020
    Country : France

    auroux posted @ 2013-11-30 10:49 PM

     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
     What was your opinion about the answer key extraction? Mostly perfect answer keys
     How did you feel about the length / time limit for this test? Just right
     Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
     What was your opinion of the booklet formatting and printing? Just right


    @ 2013-12-01 4:47 AM (#13631 - in reply to #13561) (#13631) Top

    achan1058



    Posts: 80
    20202020
    Country : Canada

    achan1058 posted @ 2013-12-01 4:47 AM

     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
     What was your opinion about the answer key extraction? Mostly perfect answer keys
     How did you feel about the length / time limit for this test? Just right
     Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
     What was your opinion of the booklet formatting and printing? Just right


    Clearly I should have done the practice first.

    Edited by achan1058 2013-12-01 4:48 AM
    @ 2013-12-01 8:24 AM (#13632 - in reply to #13561) (#13632) Top

    swaroop2011




    Posts: 668
    500100202020
    Country : India

    swaroop2011 posted @ 2013-12-01 8:24 AM

    A nice test !! Awesome puzzles !
    Especially Minimal Blocks and Four Winds with Blanks.
    Have to solve other puzzles though.
    Just 30 seconds more and i was entering the answer key for Four Winds with Blanks :(
    Anyways still enjoyed. Thanks to Authors and LMI. :)
    @ 2013-12-01 4:25 PM (#13633 - in reply to #13561) (#13633) Top

    ukonet



    Posts: 9

    Country : Turkey

    ukonet posted @ 2013-12-01 4:25 PM

     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
     What was your opinion about the answer key extraction? Perfect answer keys
     How did you feel about the length / time limit for this test? Just right
     Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
     What was your opinion of the booklet formatting and printing? Just right


    @ 2013-12-01 7:46 PM (#13635 - in reply to #13561) (#13635) Top

    xevs



    Posts: 43
    2020
    Country : Japan

    xevs posted @ 2013-12-01 7:46 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
     What was your opinion about the answer key extraction? Perfect answer keys
     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 the point values reflect the difficulty? Most puzzles were worth the right amount
     What was your opinion of the booklet formatting and printing? Just right


    I couldn't find elegant way to solve Yin-Yang top. (ToT)
    My favorites were Number connection bottom and Four winds with blanks bottom.

    Edited by xevs 2013-12-01 7:51 PM
    @ 2013-12-02 7:15 AM (#13641 - in reply to #13635) (#13641) Top

    kiwijam



    Posts: 187
    10020202020
    Country : New Zealand

    kiwijam posted @ 2013-12-02 7:15 AM

    xevs - 2013-12-02 2:46 AM

    I couldn't find elegant way to solve Yin-Yang top. (ToT)



    Hello Ko (and others),
    Please see my diagram.
    I have put all the 'easy' logic in first.
    Then I see the two red rectangles have the form:
    B.B
    B.W
    which must become:
    B.B
    BWW
    Later, I use the same rule in the green rectangles.
    I think that is enough to finish.

    @ 2013-12-02 9:33 AM (#13654 - in reply to #13641) (#13654) Top

    xevs



    Posts: 43
    2020
    Country : Japan

    xevs posted @ 2013-12-02 9:33 AM

    Thank you KiwiJam!

    That's what I need.
    Now, I wonder why I couldn't notice that. (ToT)
    @ 2013-12-02 3:17 PM (#13657 - in reply to #13561) (#13657) Top

    TiiT



    Posts: 139
    10020
    Country : Estonia

    TiiT posted @ 2013-12-02 3:17 PM

     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
     What was your opinion about the answer key extraction? Perfect answer keys
     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 the point values reflect the difficulty? Most puzzles were worth the right amount
     What was your opinion of the booklet formatting and printing? Just right


    @ 2013-12-02 4:09 PM (#13658 - in reply to #13561) (#13658) Top

    TiiT



    Posts: 139
    10020
    Country : Estonia

    TiiT posted @ 2013-12-02 4:09 PM

    I actually think that there were exactly right amount of puzzles, because of the amount of top solvers who were able to complete this competition within the time limit. There were just too many puzzles for me, but I think it's not bad (I would paint it green if I could). Anyway the puzzles were very interesting to solve, thanks to the authors!

    TiiT
    @ 2013-12-02 8:31 PM (#13660 - in reply to #13654) (#13660) Top

    prasanna16391



    Posts: 1801
    1000500100100100
    Country : India

    prasanna16391 posted @ 2013-12-02 8:31 PM

    xevs - 2013-12-02 9:33 AM

    Thank you KiwiJam!

    That's what I need.
    Now, I wonder why I couldn't notice that. (ToT)


    Birthday Blues?
    @ 2013-12-02 9:44 PM (#13662 - in reply to #13561) (#13662) Top

    kishy72



    Posts: 419
    100100100100
    Country : India

    kishy72 posted @ 2013-12-02 9:44 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? Too many hard puzzles
     What did you think about the puzzle quality of the test? Very nice
     What was your opinion about the answer key extraction? Perfect answer keys
     How did you feel about the length / time limit for this test? Just right
     Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount
     What was your opinion of the booklet formatting and printing? Just right


    A delightful test!The moment i saw the puzzle types in the IB I knew that this puzzle test had something in it for me and was going to be one very interesting test.Certaintly the test far exceeded my expectations.My favourites out of the puzzles i have solved until now are Four winds 2 which had a very high fun level and utilised the following concept : 'a particular cell where no number can reach' exceptionally well
    ,Sky-scrapers 2 which had a very beautiful logic quite similar to the one i encountered in a recent daily league sudoku,Divided sum cross 2

    My only disppointment is that i was unable to complete the Divided sum cross 2 despite starting it with close to 30 minutes on the clock.The puzzle was proceeding very smoothly for about 20 minutes until the point where for some mysterious reason ,my brain mis-interpreted the upward sum 13 clue to be a rightward clue which forced me to enter a 1 in addition to the 7 and 5 already present .The puzzle
    never broke until i was about to write the numbers in the last 2 cells!!!Unfortunately i had no time to notice where i had made the error let alone fix it.But this did not come even close to disrupting the good fun i had in solving the test.

    Thanks to all the Japanese authors for creating meticulously such beautiful hand-made puzzles.This test indeed deserves the tag of being one of the best LMI puzzle tests.Lastly ,is that some Yin Yang theorem going on above in the forum?!Why can't it be a BWB???
    @ 2013-12-02 10:32 PM (#13663 - in reply to #13561) (#13663) Top

    Yuhei Kusui



    Posts: 42
    2020
    Country : Japan

    Yuhei Kusui posted @ 2013-12-02 10:32 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? Fairly Nice
     What was your opinion about the answer key extraction? Mostly perfect answer keys
     How did you feel about the length / time limit for this test? Just right
     Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Many puzzles were worth too much or too little
     What was your opinion of the booklet formatting and printing? Just right


    @ 2013-12-03 2:52 AM (#13666 - in reply to #13561) (#13666) Top

    tamz29



    Posts: 225
    10010020
    Country : Thailand

    tamz29 posted @ 2013-12-03 2:52 AM

    I liked Number Connection and the bottom Bar Graph was very beautiful.
    Thanks to all authors for a nice test.
    @ 2013-12-03 5:20 AM (#13669 - in reply to #13561) (#13669) Top

    joshuazucker



    Posts: 31
    20
    Country : United States

    joshuazucker posted @ 2013-12-03 5:20 AM

    kishy, I had the same difficulty seeing that logic. I think the rule is "a region cannot touch itself only diagonally" because if it does that, then it must connect to itself somewhere else, but in doing so would have to split the other color's region into two groups. It's similar to the Cave/Corral rule of "the cave cannot touch itself diagonally" being very closely related to "all the non-cave walls have to connect to the outside".

    So when you have
    BB
    ..
    BW
    you cannot turn that into
    BB
    WB
    BW
    or else the W's connecting will isolate the diagonal B's, and vice-versa if you connect the diagonal B's.

    So it must be
    BB
    .W
    BW

    If I'm wrong about the logic here, I hope someone will correct me quickly! I am just starting to learn how to do these puzzles (thanks to kiwijam for the tip here!)
    @ 2013-12-03 7:23 AM (#13672 - in reply to #13561) (#13672) Top

    deu



    Posts: 69
    202020
    Country : Japan

    deu posted @ 2013-12-03 7:23 AM

    You are right, joshuazucker. Regarding basic (and very important) strategies of Yin-Yang, this post in UKPA Forum (also by kiwijam!) will be helpful:
    http://forum.ukpuzzles.org/viewtopic.php?f=5&t=619#p6259
    @ 2013-12-03 7:26 AM (#13673 - in reply to #13561) (#13673) Top

    An LMI player



    An LMI player posted @ 2013-12-03 7:26 AM

     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
     What was your opinion about the answer key extraction? Mostly perfect answer keys
     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 the point values reflect the difficulty? Most puzzles were worth the right amount
     What was your opinion of the booklet formatting and printing? Just right


    @ 2013-12-03 8:30 AM (#13675 - in reply to #13561) (#13675) Top

    Administrator



    20001000500202020
    Country : India

    Administrator posted @ 2013-12-03 8:30 AM

    JPL2 is now over.

    The authors have been very kind to provide yet another set of "Extra" puzzles. These extra puzzles, solutions to the test puzzles and history of the puzzles types can be found here.
    @ 2013-12-03 9:10 AM (#13676 - in reply to #13561) (#13676) Top

    swaroop2011




    Posts: 668
    500100202020
    Country : India

    swaroop2011 posted @ 2013-12-03 9:10 AM

    awesome thanks for extra practice puzzles :)
    JPL2 — LMI November Puzzle Test — 30th Nov-2nd Dec 201349 posts • Page 1 of 2 • 1 2
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