Thread - Sudoku 8X8 — LMI May Sudoku Test

Posts: 164

Country : Slovakia

greenhorn posted @ 2012-05-07 11:48 AM

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.

@ 2012-05-07 11:51 AM (#7209 - in reply to #7207) (#7209) Top

vopani

Posts: 739

Country : India

vopani posted @ 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.

@ 2012-05-07 12:21 PM (#7210 - in reply to #7209) (#7210) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2012-05-07 12:21 PM

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)

@ 2012-05-07 12:59 PM (#7211 - in reply to #7198) (#7211) Top

Country : India

Administrator posted @ 2012-05-07 12:59 PM

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."

@ 2012-05-07 1:01 PM (#7212 - in reply to #7198) (#7212) Top

Posts: 164

Country : Slovakia

greenhorn posted @ 2012-05-07 1:01 PM

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.

@ 2012-05-07 2:38 PM (#7213 - in reply to #7186) (#7213) Top

swaroop2011

Posts: 668

Country : India

swaroop2011 posted @ 2012-05-07 2:38 PM

will the sizes be same in the competition as in the IB like 6*6 and all or all will be 9*9 ??

@ 2012-05-07 2:50 PM (#7214 - in reply to #7213) (#7214) Top

Posts: 164

Country : Slovakia

greenhorn posted @ 2012-05-07 2:50 PM

This test is all about Sudoku 8x8, so all the puzzles will have such size.

Edited by greenhorn 2012-05-07 2:51 PM

@ 2012-05-07 3:13 PM (#7215 - in reply to #7214) (#7215) Top

swaroop2011

Posts: 668

Country : India

swaroop2011 posted @ 2012-05-07 3:13 PM

greenhorn - 2012-05-07 2:50 PM

This test is all about Sudoku 8x8, so all the puzzles will have such size.

yeah thanks

@ 2012-05-08 12:41 AM (#7220 - in reply to #7186) (#7220) Top

Richard

Posts: 191

Country : The Netherlands

Richard posted @ 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

@ 2012-05-08 1:09 AM (#7221 - in reply to #7220) (#7221) Top

Posts: 164

Country : Slovakia

greenhorn posted @ 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).

@ 2012-05-08 1:25 AM (#7222 - in reply to #7221) (#7222) Top

Richard

Posts: 191

Country : The Netherlands

Richard posted @ 2012-05-08 1:25 AM

greenhorn - 2012-05-08 1:09 AM

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.

@ 2012-05-08 2:01 AM (#7223 - in reply to #7222) (#7223) Top

Posts: 164

Country : Slovakia

greenhorn posted @ 2012-05-08 2:01 AM

Richard - 2012-05-08 1:25 AM

greenhorn - 2012-05-08 1:09 AM

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.

@ 2012-05-10 12:20 AM (#7226 - in reply to #7186) (#7226) Top

Posts: 164

Country : Slovakia

greenhorn posted @ 2012-05-10 12:20 AM

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

@ 2012-05-10 12:30 AM (#7227 - in reply to #7186) (#7227) Top

Posts: 31

Country : United States

joshuazucker posted @ 2012-05-10 12:30 AM

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!

@ 2012-05-10 3:55 AM (#7228 - in reply to #7197) (#7228) Top

Country : India

Administrator posted @ 2012-05-10 3:55 AM

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.

@ 2012-05-10 10:48 AM (#7229 - in reply to #7186) (#7229) Top

csraveen

Posts: 4

Country : India

csraveen posted @ 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????

@ 2012-05-10 11:46 AM (#7230 - in reply to #7229) (#7230) Top

Country : India

Administrator posted @ 2012-05-10 11:46 AM

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.

@ 2012-05-10 11:48 AM (#7231 - in reply to #7186) (#7231) Top

Country : India

Administrator posted @ 2012-05-10 11:48 AM

Announcements - No Online Solving

LMI 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.

@ 2012-05-11 11:36 PM (#7232 - in reply to #7186) (#7232) Top

Country : India

Administrator posted @ 2012-05-11 11:36 PM

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

@ 2012-05-12 9:27 PM (#7233 - in reply to #7186) (#7233) Top

flk

Posts: 23

Country : Australia

flk posted @ 2012-05-12 9:27 PM

Thanks for the puzzles, very fun!

@ 2012-05-13 3:30 AM (#7234 - in reply to #7233) (#7234) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2012-05-13 3:30 AM

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

@ 2012-05-13 8:44 AM (#7235 - in reply to #7186) (#7235) Top

Posts: 31

Country : United States

joshuazucker posted @ 2012-05-13 8:44 AM

Wow, lots of fun puzzles, thanks!

I'm pleased that I turned one in with about 30 seconds left on the clock in part B. I hope I got it right.

One small correction, perhaps: It seemed like several times the input instructions said "row" when they meant "column" based on what was drawn on the paper.

@ 2012-05-13 10:10 AM (#7236 - in reply to #7186) (#7236) Top

Posts: 31

Country : United States

joshuazucker posted @ 2012-05-13 10:10 AM

Hm, after part A the score page seemed to load just fine but now that I'm done with part B it's all showing up blank?

@ 2012-05-13 12:17 PM (#7237 - in reply to #7186) (#7237) Top

tamz29

Posts: 225

Country : Thailand

tamz29 posted @ 2012-05-13 12:17 PM

I can't see the results at all

@ 2012-05-13 12:24 PM (#7238 - in reply to #7186) (#7238) Top