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Location: India | Logic Masters India announces May 2012 Sudoku Test — Sudoku 8X8
Dates : 12th - 14th May
IB and Submission Link : http://logicmastersindia.com/M201205S/
Author : ZUZKA HROMCOVÁ & MATÚŠ DEMIGER
There are 2 parts, each of 64 minutes. |
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Diagonal Vision Author
Posts: 337
Location: Switzerland | Will there be a special prize for the player finishing in 8th position?  |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1844
Location: India | Fred76 - 2012-05-07 4:41 AM
Will there be a special prize for the player finishing in 8th position?
Nope. 64th  |
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Location: India | Can one take a break between part A and B |
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Location: Thailand | In X sum sudoku: the clue is on the right puzzle at column 4. The number 8 is wrong. 9 is correct? |
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Location: Japan | I have one question about B6 (Surplus-deficit sudoku).
Are there any restrictions for regions with exactly 8 cells? |
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WSPC Organizer
Posts: 739
Location: India | devarajand - 2012-05-07 7:46 AM
Can one take a break between part A and B
It does not say you have to take both parts together and 'independent parts' surely implies that you can take as long a break in between as you like. Also, I'm sure you can participate in Part B before Part A if you wish, there doesn't seem to be any restriction. |
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WSPC Organizer
Posts: 739
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?
Yes, you are correct. it should be '9' on the RHS of row4. |
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WSPC Organizer
Posts: 739
Location: India | In B14: Odd-Even View Skyscraper Sudoku,
What is the use of 'skyscraper'? Isn't it simply an 'Odd-Even View Sudoku'? |
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Location: India | Rohan Rao - 2012-05-07 10:51 AM
devarajand - 2012-05-07 7:46 AM
Can one take a break between part A and B
It does not say you have to take both parts together and 'independent parts' surely implies that you can take as long a break in between as you like. Also, I'm sure you can participate in Part B before Part A if you wish, there doesn't seem to be any restriction.
There will absolutely be no restrictions between two parts. Breaks are allowed. And you are allowed to start part B before part A. |
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Location: India | 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. |
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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
Posts: 1844
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
Posts: 164
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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Sudoku 8X8 — LMI May Sudoku Test — 12th-14th May
