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Posts: 69
Location: Japan | Administrator - 2012-05-07 11:23 AM
Rohan Rao - 2012-05-07 11:03 AM
In B14: Odd-Even View Skyscraper Sudoku,
What is the use of 'skyscraper'? Isn't it simply an 'Odd-Even View Sudoku'? Yes, it is Odd Even View Sudoku.
No. The example has multiple solutions as an 'Odd-Even View Sudoku' (We can swap 5 and 6 in Column 2/3).
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WSPC Organizer
Posts: 739
 
Location: India | The total points is 808 and time is 128 minutes. That means, a player who finishes all puzzles within the time limit is solving at the speed of at least 6-7 (and maybe more) points per minute, whereas the time bonus is just 3 points per minute. I think the time bonus should be increased.
In particular, players completing Part A and Part B would be solving at a speed greater than 5.5 points per minute and 7 points per minute respectively. The time bonus of 3 points per minute looks meager and will surely not give a good indication of the different of performances of players who complete the test before time.
Obvious Issue: Players completing Part B should be given a higher time bonus than those completing Part A. |
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Location: India | deu - 2012-05-07 11:32 AM
Administrator - 2012-05-07 11:23 AM
Rohan Rao - 2012-05-07 11:03 AM
In B14: Odd-Even View Skyscraper Sudoku,
What is the use of 'skyscraper'? Isn't it simply an 'Odd-Even View Sudoku'? Yes, it is Odd Even View Sudoku.
No. The example has multiple solutions as an 'Odd-Even View Sudoku' (We can swap 5 and 6 in Column 2/3 ).
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 164
Location: Slovakia | Administrator - 2012-05-07 11:39 AM
deu - 2012-05-07 11:32 AM
Administrator - 2012-05-07 11:23 AM
Rohan Rao - 2012-05-07 11:03 AM
In B14: Odd-Even View Skyscraper Sudoku,
What is the use of 'skyscraper'? Isn't it simply an 'Odd-Even View Sudoku'? Yes, it is Odd Even View Sudoku.
No. The example has multiple solutions as an 'Odd-Even View Sudoku' (We can swap 5 and 6 in Column 2/3 ).
Apologies. My mistake.
There is a difference between OEVS and OEVSS. If you have in one row numbers "213..." the first visible odd skyscraper is 3, because 1 is covered by 2. |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 164
Location: Slovakia | Rohan Rao - 2012-05-07 11:38 AM
The total points is 808 and time is 128 minutes. That means, a player who finishes all puzzles within the time limit is solving at the speed of at least 6-7 (and maybe more) points per minute, whereas the time bonus is just 3 points per minute. I think the time bonus should be increased.
In particular, players completing Part A and Part B would be solving at a speed greater than 5.5 points per minute and 7 points per minute respectively. The time bonus of 3 points per minute looks meager and will surely not give a good indication of the different of performances of players who complete the test before time.
Obvious Issue: Players completing Part B should be given a higher time bonus than those completing Part A.
Yes, we know about it. We will talk about it with Deb soon. The bonuses may be changed. |
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WSPC Organizer
Posts: 739
Location: India | greenhorn - 2012-05-07 11:45 AM
There is a difference between OEVS and OEVSS. If you have in one row numbers "213..." the first visible odd skyscraper is 3, because 1 is covered by 2.
Ok. I get it. The example doesn't have any such case, so it was misleading. Thanks. |
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2021 World Sudoku+Puzzle Convention Organizer
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Location: India | Rohan Rao - 2012-05-07 11:51 AM
greenhorn - 2012-05-07 11:45 AM
There is a difference between OEVS and OEVSS. If you have in one row numbers "213..." the first visible odd skyscraper is 3, because 1 is covered by 2.
Ok. I get it. The example doesn't have any such case, so it was misleading. Thanks.
It did have a few examples I think, not exactly like the 213, but skyscraper logic was required. The "2" below R6C5 had to be satisfied in the first cell itself, since the 5 would block vision towards the 2. This is not the case in Even Odd View I guess, you could've had 5 in the first cell and 2 in the next with the "2" outside clue. (I'm saying this with memory of solving yesterday, so the placements may be a bit off, but the logic was there) |
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Location: India | deu - 2012-05-07 10:45 AM
I have one question about B6 (Surplus-deficit sudoku).
Are there any restrictions for regions with exactly 8 cells?
We will update the instructions - "In regions with less than or equal to 8 cells, the numbers should not repeat." |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 164
Location: Slovakia | deu - 2012-05-07 10:45 AM
I have one question about B6 (Surplus-deficit sudoku).
Are there any restrictions for regions with exactly 8 cells?
In the competition, there will be no regions with 8 cells.
In the IB, you should aply both rules at once - in region with 6 cells no digits may repeat and each digit should appear at least once. |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | will the sizes be same in the competition as in the IB like 6*6 and all or all will be 9*9 ?? |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 164
Location: Slovakia |  This test is all about Sudoku 8x8, so all the puzzles will have such size.
Edited by greenhorn 2012-05-07 2:51 PM
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | greenhorn - 2012-05-07 2:50 PM
This test is all about Sudoku 8x8, so all the puzzles will have such size.
yeah thanks
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WCPN Author
Posts: 191
Location: The Netherlands | The theme of part B is ...without regularly placed regions... but most of the example puzzles are 'regular' 2x3 blocks. How do I have to see this?
Thanks in advance!
Best regards, Richard |
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2021 World Sudoku+Puzzle Convention Organizer
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Location: Slovakia | Richard - 2012-05-08 12:41 AM
The theme of part B is ...without regularly placed regions... but most of the example puzzles are 'regular' 2x3 blocks. How do I have to see this?
Thanks in advance!
Best regards, Richard
It is just a IB. We were not able to construct 28 original 8x8 puzzles for Instruction booklet. We believe, that for understanding the rules/instructions it is enough to have smaller puzzles in IB. And also, it is not possible to rotate half of the rectangles in 6x6 puzzle as in 8x8 puzzle (see the classics A1-2 and B1-2 in the IB). |
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WCPN Author
Posts: 191
Location: The Netherlands | greenhorn - 2012-05-08 1:09 AM
Richard - 2012-05-08 12:41 AM
The theme of part B is ...without regularly placed regions... but most of the example puzzles are 'regular' 2x3 blocks. How do I have to see this?
Thanks in advance!
Best regards, Richard
It is just a IB. We were not able to construct 28 original 8x8 puzzles for Instruction booklet. We believe, that for understanding the rules/instructions it is enough to have smaller puzzles in IB. And also, it is not possible to rotate half of the rectangles in 6x6 puzzle as in 8x8 puzzle (see the classics A1-2 and B1-2 in the IB ).
No problem!
I just wondered if more grids would have irregular shapes than the presented puzzles in B1-2, B4, B5, B6, B11 and B12.
I know how much work it is preparing a test plus IB. Having no less than 28 puzzles (x2) isn't making this easier!
I am looking forward to the test, since 14 puzzles for a bit over an hour seems like that there are a few quickies to be done, even for a midrange-solver like me. 
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 164
Location: Slovakia | Richard - 2012-05-08 1:25 AM
greenhorn - 2012-05-08 1:09 AM
Richard - 2012-05-08 12:41 AM
The theme of part B is ...without regularly placed regions... but most of the example puzzles are 'regular' 2x3 blocks. How do I have to see this?
Thanks in advance!
Best regards, Richard
It is just a IB. We were not able to construct 28 original 8x8 puzzles for Instruction booklet. We believe, that for understanding the rules/instructions it is enough to have smaller puzzles in IB. And also, it is not possible to rotate half of the rectangles in 6x6 puzzle as in 8x8 puzzle (see the classics A1-2 and B1-2 in the IB ).
No problem!
I just wondered if more grids would have irregular shapes than the presented puzzles in B1-2, B4, B5, B6, B11 and B12.
I know how much work it is preparing a test plus IB. Having no less than 28 puzzles (x2 ) isn't making this easier!
I am looking forward to the test, since 14 puzzles for a bit over an hour seems like that there are a few quickies to be done, even for a midrange-solver like me.
Richard, you´re absolutely right. Some of the puzzles will be easier (it is not hard to discover which ones), so that is why we even haven´t tought about bigger (harder) puzzles in IB. And of course, we want to keep the best puzzles for the competition.
All the irregular puzzles (as Irregular sudoku, Surplus-deficit or Irregular without regions) are irregular in IB. Only the usual variants, which will have rotated regions, are unrotated in the IB. |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 164
Location: Slovakia | Dear puzzle friends,
in Foursome sudoku (A11-14) there are four sudoku grids and the points may be distributed for each grid independently. However we accept only solution, that is valid for all four puzzle grids together!
This sentence is missing in the IB, but we believe, that it was clear also before.
Thank you for understanding!
Edited by greenhorn 2012-05-10 12:20 AM
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Posts: 31
Location: United States | I think there's a typo in B8: the 8 on the right edge should be 3+5+1 = 9.
Looks like this will be a fun test! |
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Location: India | sinchai4547 - 2012-05-07 10:19 AM
In X sum sudoku: the clue is on the right puzzle at column 4. The number 8 is wrong. 9 is correct?
An updated version of IB is now available with this typo fixed. |
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Posts: 4
Location: India | Hello guys,I hava a doubt.The Foursome Sudoku instructions say that there will be four grids-2 usual,one with rotated rectangles & one irregular.But there is no irregular grid given in the IB??????wat abt that???? |
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Location: India | csraveen - 2012-05-10 10:48 AM
Hello guys,I hava a doubt.The Foursome Sudoku instructions say that there will be four grids-2 usual,one with rotated rectangles & one irregular.But there is no irregular grid given in the IB??????wat abt that???? As mentioned earlier in this thread, the IB is just for illustration of the rules. |
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Location: India | Announcements - No Online SolvingLMI flash interface does not support Cube Sudoku. Also, it is very difficult to solve Irregular W/O borders on the flash.
So, it is decided that online solving will not be available in this test.
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Location: India | Announcements
1. Password protected pdfs is uploaded. Part A pdf has 6 pages and part B pdf has 7 pages. There are no cover pages. Password for each pdf is different (? ).
2. As announced earlier, there is no online solving in this test.
3. Bonus points for part A = 5 points per minutes saved. Bonus points for part B = 7 points per minutes saved.
4. Link for score page : http://logicmastersindia.com/M201205S/score.asp
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Posts: 23
Location: Australia | Thanks for the puzzles, very fun! |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1780
Location: India | I really need to learn how to use the printer :| Also probably not a good idea to give the test tonight, still need to work on my patience.
Anyway, some really nice puzzles, will need to get back to all the ones I solved wrong. :P
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Sudoku 8X8 — LMI May Sudoku Test — 12th-14th May
