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L O G I D O K U — LMI June Sudoku Test — 18/19th June60 posts • Page 1 of 3 • 1 2 3
@ 2011-06-13 11:09 AM (#4823) (#4823) Top

Administrator



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Administrator posted @ 2011-06-13 11:09 AM

Logic Masters India announces June Sudoku Test — L O G I D O K U

Authors : ZUZKA HROMCOVÁ (zuziik) & MATÚŠ DEMIGER (greenhorn)

Dates : 18th and 19th June

Length : 123 minutes

IB and Submission Link : here


Sudokus in this test will based on well known 'logic puzzles'

  • Battleship Sudoku
  • Domino Sudoku
  • Easy As ABC Sudoku
  • Fence Sudoku
  • Japanese Sums Sudoku
    • Kakuro Sudoku
    • Kropki Sudoku
    • Pairs Sudoku
    • Skyscrapers Sudoku
    • Tapa Sudoku

      Each type will be represented by a 6X6 grid and a 9X9 grid.


      @ 2011-06-13 1:17 PM (#4826 - in reply to #4823) (#4826) Top

      rakesh_rai




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      rakesh_rai posted @ 2011-06-13 1:17 PM

      One question on the bonus: The second time bonus (1 point) is applicable if someone solves all 10 big sudokus. Is this bonus from the time the tenth sudoku is correctly submitted?

      What will be the time bonus in these cases:

      (a) Player X completes 10 big sudokus in 110 minutes and then does not solve anything.
      (b) Player Y completes 10 big sudokus in 110 minutes, then does an incorrect submission at 122 minutes
      (c) Player Z completes 10 big sudokus in 110 minutes, then does another (small sudoku) correct submission at 121 minutes
      @ 2011-06-13 5:41 PM (#4833 - in reply to #4826) (#4833) Top

      debmohanty




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      debmohanty posted @ 2011-06-13 5:41 PM

      I hadn't thought about this in details, but I can see problems with this bonus.
      Will discuss with Matus and finalize.
      @ 2011-06-13 7:02 PM (#4837 - in reply to #4823) (#4837) Top

      Neeraj



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      Neeraj posted @ 2011-06-13 7:02 PM

      hey there is some problem with the link.....
      It is getting redirected to LMI May Sudoku Test..
      @ 2011-06-13 7:10 PM (#4838 - in reply to #4837) (#4838) Top

      harmeet



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      harmeet posted @ 2011-06-13 7:10 PM

      neeraj bhai, i could reach the site at the below link.
      http://logicmastersindia.com/M201106S/

      @ 2011-06-13 7:40 PM (#4841 - in reply to #4826) (#4841) Top

      debmohanty




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      debmohanty posted @ 2011-06-13 7:40 PM

      rakesh_rai - 2011-06-13 1:17 PM

      One question on the bonus: The second time bonus (1 point) is applicable if someone solves all 10 big sudokus. Is this bonus from the time the tenth sudoku is correctly submitted?

      What will be the time bonus in these cases:

      (a) Player X completes 10 big sudokus in 110 minutes and then does not solve anything.
      (b) Player Y completes 10 big sudokus in 110 minutes, then does an incorrect submission at 122 minutes
      (c) Player Z completes 10 big sudokus in 110 minutes, then does another (small sudoku) correct submission at 121 minutes


      We've decided to get rid of the "second time bonus (1 point if all 10 big Sudokus are correct)".

      Updated IB is uploaded.

      Also, the points for Kropki (Small) is reduced.
      @ 2011-06-13 11:35 PM (#4845 - in reply to #4823) (#4845) Top

      zalak



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      zalak posted @ 2011-06-13 11:35 PM

      In the Battleship Sudoku, can we have the same battleship at multiple location? Am I missing a rule?
      Not sure if I am making myself clear, so attaching a picture.

      @ 2011-06-14 4:08 AM (#4848 - in reply to #4823) (#4848) Top

      RJH0723



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      RJH0723 posted @ 2011-06-14 4:08 AM

      I think regular battleships rules apply to this puzzle. In all three of your other possible placements, the 2,3 battleship would be touching another battleship. In battleship, no ships may touch, even diagonally.
      @ 2011-06-14 10:45 AM (#4851 - in reply to #4845) (#4851) Top

      vopani



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      vopani posted @ 2011-06-14 10:45 AM

      zalak - 2011-06-13 11:35 PM

      In the Battleship Sudoku, can we have the same battleship at multiple location? Am I missing a rule?
      Not sure if I am making myself clear, so attaching a picture.


      As mentioned in previous post, the ships cannot touch each other, not even diagonally. And also, the numbers given outside the grid indicate the number of cells with ship in the corresponding row/column. In other words, standard Battleship rules apply.

      You will find one example/puzzle of 6x6 Battleship Sudoku in Speed Sixes: http://www.logicmastersindia.com/lmitests/?test=M201006

      Edited by Rohan Rao 2011-06-14 10:51 AM
      @ 2011-06-14 6:17 PM (#4859 - in reply to #4851) (#4859) Top

      rakesh_rai




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      rakesh_rai posted @ 2011-06-14 6:17 PM

      Will LOGIDOKU have an online interface also or will it be only pdf based? I can see that some of the puzzles (like fence sudoku) may prove to be difficult to solve using online interface.
      @ 2011-06-15 11:15 AM (#4861 - in reply to #4859) (#4861) Top

      debmohanty




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      debmohanty posted @ 2011-06-15 11:15 AM

      rakesh_rai - 2011-06-14 6:17 PM

      Will LOGIDOKU have an online interface also or will it be only pdf based? I can see that some of the puzzles (like fence sudoku) may prove to be difficult to solve using online interface.
      Apart from Fence Sudoku, some other variants will be difficult to solve with the basic online frame work we have (Tapa, Pairs, Japanese Sums)
      So we are not going to have online for this test as well.
      @ 2011-06-15 6:18 PM (#4867 - in reply to #4823) (#4867) Top

      SKnight



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      SKnight posted @ 2011-06-15 6:18 PM

      In the Kakuro Sudoku example, there are a couple of issues.
      First, the "19" in row 4 should pretty clearly be a "17".
      Also, even assuming that fix, there are three different solutions, I think. The 3's and 5's in rows 5/7 could be swapped without affecting the sums, and there's a third solution where you swap the 2 and 3 in the last column and then adjust 2's, 3's and 5's accordingly.
      @ 2011-06-15 6:42 PM (#4868 - in reply to #4867) (#4868) Top

      debmohanty




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      debmohanty posted @ 2011-06-15 6:42 PM

      Yes, the sum of 19 needs to be corrected in the example.

      Regarding 3 and 5 being exchangable : This is not allowed since digits can't repeat in rows / columns / outlined regions.
      @ 2011-06-16 2:51 AM (#4870 - in reply to #4868) (#4870) Top

      SKnight



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      SKnight posted @ 2011-06-16 2:51 AM

      debmohanty - 2011-06-15 9:42 AM

      Yes, the sum of 19 needs to be corrected in the example.

      Regarding 3 and 5 being exchangable : This is not allowed since digits can't repeat in rows / columns / outlined regions.


      Um... maybe I'm being dense here, but if you swap both pairs, how do they repeat?

      3 5
      5 3

      vs

      5 3
      3 5

      ???

      @ 2011-06-16 3:06 AM (#4871 - in reply to #4870) (#4871) Top

      Fred76




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      Fred76 posted @ 2011-06-16 3:06 AM

      SKnight - 2011-06-16 2:51 AM

      debmohanty - 2011-06-15 9:42 AM

      Yes, the sum of 19 needs to be corrected in the example.

      Regarding 3 and 5 being exchangable : This is not allowed since digits can't repeat in rows / columns / outlined regions.


      Um... maybe I'm being dense here, but if you swap both pairs, how do they repeat?

      3 5
      5 3

      vs

      5 3
      3 5

      ???



      They repeat in the outlined (irregular) regions if you swap both pairs

      Fred
      @ 2011-06-16 3:13 PM (#4874 - in reply to #4867) (#4874) Top

      swaroop2011




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      swaroop2011 posted @ 2011-06-16 3:13 PM

      KAKURO SUDOKU
      1) Apart from that printing mistake of 19 in row 4 which should have been 17 as mentioned earlier, i am getting multiple solution.
      other than what given in the solution i am getting different solution. here by i am attaching a photo of it.
      i am not able to find any mistake in it please check it out.

      @ 2011-06-16 3:23 PM (#4875 - in reply to #4874) (#4875) Top

      rakesh_rai




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      rakesh_rai posted @ 2011-06-16 3:23 PM

      swaroop2011 - 2011-06-16 3:13 PM

      KAKURO SUDOKU
      1) Apart from that printing mistake of 19 in row 4 which should have been 17 as mentioned earlier, i am getting multiple solution.other than what given in the solution i am getting different solution. here by i am attaching a photo of it.
      i am not able to find any mistake in it please check it out.


      Look at the first two columns...lot of numbers are repeating.
      @ 2011-06-16 3:26 PM (#4876 - in reply to #4874) (#4876) Top

      harmeet



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      harmeet posted @ 2011-06-16 3:26 PM

      Swaroop, you've two 4's and two 2's in the first column for e.g.
      @ 2011-06-16 3:31 PM (#4877 - in reply to #4876) (#4877) Top

      swaroop2011




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      swaroop2011 posted @ 2011-06-16 3:31 PM

      i thought ki the row and column meant between two black cells,
      ok now it is clear.
      @ 2011-06-16 3:40 PM (#4878 - in reply to #4823) (#4878) Top

      Administrator



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      Administrator posted @ 2011-06-16 3:40 PM

      Swaroop and others, please remember that this is not a standard Kakuro puzzle. Digits can NOT be repeated across rows / columns / outlined regions.

      This puzzle is also known are 'Sudo-Kuro'

      Here are one more example from mock6



      Also, see Rohan's blog for 2 more puzzles from Sudoku Cup 1.
      @ 2011-06-16 3:43 PM (#4879 - in reply to #4877) (#4879) Top

      swaroop2011




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      swaroop2011 posted @ 2011-06-16 3:43 PM

      1)SKYSCRAPERS SUDOKU

      can anybody tell me the mistake in this image now, here too i am getting same problem of multiple solution.

      2) can any body help out with how to start the BATTLESHIP SUDOKU, i am not getting any hint.

      Spoiler: show




      @ 2011-06-16 3:46 PM (#4880 - in reply to #4879) (#4880) Top

      Administrator



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      Administrator posted @ 2011-06-16 3:46 PM

      swaroop2011 - 2011-06-16 3:43 PM

      1)SKYSCRAPERS SUDOKU

      can anybody tell me the mistake in this image now, here too i am getting same problem of multiple solution.



      You've ignored the hint 5 at bottom of column 6.
      @ 2011-06-16 3:50 PM (#4881 - in reply to #4823) (#4881) Top

      swaroop2011




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      swaroop2011 posted @ 2011-06-16 3:50 PM

      ok got it again did very silly mistake. i think now i should improve upon this. thanks .
      what about BATTLESHIP SUDOKU?
      @ 2011-06-16 3:59 PM (#4882 - in reply to #4881) (#4882) Top

      Administrator



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      Administrator posted @ 2011-06-16 3:59 PM

      swaroop2011 - 2011-06-16 3:50 PM

      ok got it again did very silly mistake. i think now i should improve upon this. thanks .
      what about BATTLESHIP SUDOKU?

      In Battleship Sudoku, you have to remember that the given digits can't be part of ships (i.e. they are like Water cells in standard Battleships puzzle)

      Considering that, it is easy to figure that the 1X3 ship can lie horizontally in row6. It can't lie vertically in Col1 or Col3 (then it is not possible to satisfy Col2).
      So, you get 4 at R6C2.
      From that it should be easy to determine that the 1X2 ships will be in R1C2C3 and R3R4C1. You should be able to solve it after that.

      Apart from the link Rohan mentioned, you should be able get 9X9 Battleship Sudokus from motris' blog

      See - http://motris.livejournal.com/79580.html, http://motris.livejournal.com/18608.html,... http://motris.livejournal.com/79580.html

      @ 2011-06-16 4:27 PM (#4884 - in reply to #4823) (#4884) Top

      swaroop2011




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      swaroop2011 posted @ 2011-06-16 4:27 PM

      any hints for
      JAPANESE SUMS SUDOKU - not able to start it.
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