Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012
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Subject: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-06 6:23 AM (#7467) (#7467) Top


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macherlakumar
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-06 9:49 AM (#7469 - in reply to #7467) (#7469) Top





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very very nice logo, who designed this ? David ?

Regards,
Ravi
AndreyBogdanov
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-06 12:08 PM (#7470 - in reply to #7469) (#7470) Top


Snowmen Author

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very very nice logo, who designed this ? David ?
The logo was designed by my daughter Kate and now she's very happy the logo is liked.

Edited by AndreyBogdanov 2012-06-06 12:11 PM
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Subject: RE: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-09 7:53 AM (#7474 - in reply to #7467) (#7474) Top


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Logic Masters India announces June Puzzle Test — Seven Samurais

Author : Andrey Bogdanov

Dates : 16th - 18th June

IB and Submission Link : here
Para
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-10 4:19 AM (#7476 - in reply to #7467) (#7476) Top




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One question for the battleships puzzle. Can a ship cross over the edge of a grid into another grid, so that in one grid it is a smaller size than in another grid?
So say in the example puzzle: in the right top grid a size 3 ship lies in R5C123 and then at the same time in the left bottom grid a size 2 ship lies in R2C45.

Also a clarification about the star battle puzzle, I assume that stars which belong to different grid can touch diagonally, like in the battleships example?

Edited by Para 2012-06-10 4:23 AM
vopani
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-10 10:07 AM (#7477 - in reply to #7476) (#7477) Top


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Can the Minesweeper puzzle have the possibility given below? The number satisfies each grid independently, but not together.



(1.png)



Attachments
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Attachments 1.png (1KB - 6 downloads)
AndreyBogdanov
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-10 12:02 PM (#7478 - in reply to #7476) (#7478) Top


Snowmen Author

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One question for the battleships puzzle. Can a ship cross over the edge of a grid into another grid, so that in one grid it is a smaller size than in another grid?
Yes, it can. Ships don't have rounded corners and you could consider it as a simle set of marked cells for each grid.

Also a clarification about the star battle puzzle, I assume that stars which belong to different grid can touch diagonally, like in the battleships example?
Touching of stars which don't belong to the same grid is possible.
AndreyBogdanov
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-10 12:03 PM (#7479 - in reply to #7477) (#7479) Top


Snowmen Author

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Can the Minesweeper puzzle have the possibility given below? The number satisfies each grid independently, but not together.
Your picture is correct. Each grid is satisfy the rule.
AndreyBogdanov
Subject: RE: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-10 1:20 PM (#7480 - in reply to #7467) (#7480) Top


Snowmen Author

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All participants could try the puzzles of the last Moscow Cup. See here. I made this round using the same idea of overlapping grids. The file is in Russian but mostly puzzles are well known:
1. Tents
2. Yin-Yang
3. Batleships
4. Heyawake
5. No touch - Write digits 1 to 7 into the grid (each digits could be used any times). Digits cannot touch each other. Numbers outside show the sum of digits in the corresponding row.
6. Tetroscop - Place the complete tetromino set - elements cannot touch each other even diagonally. Clues show the number of occupied neighbouring cells. Pieces could be rotated and reflected.
7. Minesweeper - 17 mines for each grid.
boing
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-10 2:41 PM (#7481 - in reply to #7467) (#7481) Top




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In the bottom grid of the battleships example, if we toggled the first two cells each of R3 and R5, would we have another solution?
prasanna16391
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-10 3:41 PM (#7482 - in reply to #7480) (#7482) Top


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I guess the Moscow Cup puzzles were of an easier difficulty, which is good for practicing the basic steps in the samurai grid. I have fun on Samurais, though I'm not that good at the sudoku version. Hopefully I'm good at the puzzle version :P
AndreyBogdanov
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-10 4:20 PM (#7483 - in reply to #7481) (#7483) Top


Snowmen Author

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boing - 2012-06-10 12:41 PM

In the bottom grid of the battleships example, if we toggled the first two cells each of R3 and R5, would we have another solution?

Yes, you are right. The example has muliply solutions. A hope test puzzles will have unique solition.
greenhorn
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-11 3:24 PM (#7484 - in reply to #7467) (#7484) Top


Wacky Slovak Classics Author

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What about the minesweeper? Has the puzzle in IB more than one solution? Or I missed something during solving?

Edited by greenhorn 2012-06-11 3:54 PM
greenhorn
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-11 3:53 PM (#7485 - in reply to #7467) (#7485) Top


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In Hitori, the instructions say that all the unblackened cells should be connected. Is it valid for the whole puzzle (5 grids) or always for one small puzzle?
greenhorn
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-11 10:58 PM (#7486 - in reply to #7485) (#7486) Top


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greenhorn - 2012-06-11 3:53 PM

In Hitori, the instructions say that all the unblackened cells should be connected. Is it valid for the whole puzzle (5 grids) or always for one small puzzle?


After thinking about it, it seems to be slightly impossible to have one grid without connected white cells and the others with connected. So sorry for stupid question
vopani
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-12 9:52 AM (#7487 - in reply to #7486) (#7487) Top


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greenhorn - 2012-06-11 10:58 PM

After thinking about it, it seems to be slightly impossible to have one grid without connected white cells and the others with connected. So sorry for stupid question

I had the same doubt earlier. But, I wanted to ask by posting an image and thats when I realised I couldn't create such a case (unless the overlapped region consists of just one cell).
Same goes for Yin Yang too.
AndreyBogdanov
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-12 1:34 PM (#7488 - in reply to #7486) (#7488) Top


Snowmen Author

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What about the minesweeper? Has the puzzle in IB more than one solution? Or I missed something during solving?

I couldn't find alternate solution. Describe if you have it.

After thinking about it, it seems to be slightly impossible to have one grid without connected white cells and the others with connected. So sorry for stupid question
All rules must be valid for each single grid. But of course sometimes it implies some restrictions for whole puzzle.
debmohanty
Subject: RE: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-13 9:44 AM (#7492 - in reply to #7467) (#7492) Top



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Some practice material from Puzzle Graffiti :

Yin Yang
Battleships
PuzzleScot
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-13 3:11 PM (#7494 - in reply to #7467) (#7494) Top




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Top grid of Hitori. Is there a 2nd solution by colouring the opposite 5 in row 3? Is there actually a 3rd solution there by colouring the opposite 1 (row 2) and 5 (row 3)?
AndreyBogdanov
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-13 4:59 PM (#7495 - in reply to #7494) (#7495) Top


Snowmen Author

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Top grid of Hitori. Is there a 2nd solution by colouring the opposite 5 in row 3? Is there actually a 3rd solution there by colouring the opposite 1 (row 2) and 5 (row 3)?
Yes, there was a mistake in this example, which was found by Deb at the last moment and I've corrected picture without checking uniqueness.
debmohanty
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-13 5:15 PM (#7496 - in reply to #7495) (#7496) Top



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AndreyBogdanov - 2012-06-13 4:59 PM

Top grid of Hitori. Is there a 2nd solution by colouring the opposite 5 in row 3? Is there actually a 3rd solution there by colouring the opposite 1 (row 2) and 5 (row 3)?
Yes, there was a mistake in this example, which was found by Deb at the last moment and I've corrected picture without checking uniqueness.
And you should have mentioned that it is me who suggested the 'correction' as well. Sorry about the blind suggestion.
Administrator
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-15 11:31 PM (#7500 - in reply to #7467) (#7500) Top


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Announcements


• Password protected pdf is uploaded. It has 8 pages, including a cover page with points table.
• Submitting during extra time will be considered only if points scored during extra time is more than penalty.



PS : A wrong date was entered as the start time of the test, and 4 players have participated in last few hours. This has been rectified, but those players' scores will be valid.

PuzzleScot
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-16 3:49 PM (#7501 - in reply to #7467) (#7501) Top




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DELETED COMMENT

Edited by PuzzleScot 2012-06-16 3:51 PM
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Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-16 10:32 PM (#7503 - in reply to #7467) (#7503) Top


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The score page doesn't handle the extra time related computations yet. Please allow us some more time to make it complete.
supreet
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-17 11:46 AM (#7504 - in reply to #7467) (#7504) Top




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The webpage is not showing me the start puzzle button at all or the timer...how do i start solving the puzzle and submit my answers.


Edited by supreet 2012-06-17 11:53 AM
Para
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-17 1:47 PM (#7505 - in reply to #7504) (#7505) Top




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supreet - 2012-06-17 11:46 AM

The webpage is not showing me the start puzzle button at all or the timer...how do i start solving the puzzle and submit my answers.


Are you logged in on the puzzle page? If you're not, there won't be a start button yet. If you have three boxes to fill in name, password and country, you have to log in first and then the start button will appear.
supreet
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-17 4:00 PM (#7506 - in reply to #7467) (#7506) Top




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The three boxes you are mentioning are also not displayed on my webpage. What do i do?
when i open this discussion thread, its showing me as logged in on the top right hand corner..." Welcome, supreet...", but not on the puzzle page.

Edited by supreet 2012-06-17 4:03 PM
Para
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-17 6:06 PM (#7507 - in reply to #7506) (#7507) Top




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supreet - 2012-06-17 4:00 PM

The three boxes you are mentioning are also not displayed on my webpage. What do i do?
when i open this discussion thread, its showing me as logged in on the top right hand corner..." Welcome, supreet...", but not on the puzzle page.


I'm no admin, but as far as I have noticed so far, the forum and the test page aren't directly linked with being logged in. So it can occur that you are logged in on the forum, but not on the Test page. So to play a test, you have to make sure you're logged in on the Test Page (here: http://logicmastersindia.com/M201206P ). If there are no boxes to log i on that page now AND there is no start button, then you should contact Deb, as I have no better information available.
gokulakrishnan
Subject: RE: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-17 6:24 PM (#7508 - in reply to #7467) (#7508) Top




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what is tghe pasword for the pdf????, am not able to open it
AndreyBogdanov
Subject: RE: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-17 7:11 PM (#7509 - in reply to #7508) (#7509) Top


Snowmen Author

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gokulakrishnan - 2012-06-17 4:24 PM

what is tghe pasword for the pdf????, am not able to open it
The password will be available when you log into test page and press "Star Seven Samurais" button. After the end of test (on June 19) the password will be available without logging.
puzzlemad
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-17 10:42 PM (#7510 - in reply to #7467) (#7510) Top




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As always thank you very much to everyone for an enjoyable set of puzzles - plenty to keep me going now!
forcolin
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-18 1:31 AM (#7511 - in reply to #7467) (#7511) Top





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The puzzles were all excellent as expected, but what was absolutely superb is the logo.
Thanks Andrey and Kate
wss121
Subject: RE: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-18 4:44 AM (#7512 - in reply to #7508) (#7512) Top




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gokulakrishnan - 2012-06-17 6:24 PM

what is tghe pasword for the pdf????, am not able to open it

the pasword for the pdf :F

Edited by debmohanty 2012-06-18 5:16 AM
wss121
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-18 4:49 AM (#7513 - in reply to #7467) (#7513) Top




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I like the puzzles, but I have no idea with the YINYANG
Administrator
Subject: RE: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-18 5:23 AM (#7514 - in reply to #7512) (#7514) Top


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wss121 - 2012-06-18 4:44 AM

gokulakrishnan - 2012-06-17 6:24 PM

what is tghe pasword for the pdf????, am not able to open it

the pasword for the pdf :F

Isn't it interesting why the admins / organizers / author didn't post the password?
May be they didn't have the password!
vivek
Subject: organising prelims of wsc at MNIT, Jaipur @ 2012-06-18 2:02 PM (#7515 - in reply to #7467) (#7515) Top




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Respected Sir
I want to organise prelims of any kind of world sudoku championship at my college from 2nd to 4th of November at MNIT,Jaipur during our fest.It would be a matter of great pride for us.

Please do reply at viveknandwani2@gmail.com
supreet
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-18 7:54 PM (#7516 - in reply to #7467) (#7516) Top




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Why is the Minesweeper puzzle showing 20 per each grid instead of 25 on the answer submission page?
AndreyBogdanov
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-18 10:55 PM (#7517 - in reply to #7516) (#7517) Top


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supreet - 2012-06-18 5:54 PM

Why is the Minesweeper puzzle showing 20 per each grid instead of 25 on the answer submission page?

Minesweeper costs 20 point for all solvers. 25 is the number of minus to be placed, not points.
MellowMelon
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-19 1:20 AM (#7518 - in reply to #7517) (#7518) Top


Fillomino-Fillia 2 Author

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Thanks for some amazing puzzles. I had no idea the overlapping grids concept could result in challenges like what we got here. Yin-yang and Fences/Slitherlink were probably my favorites.

Surprised (in a positive way) at my performance, given how little energy I've had to devote to puzzles in the last month.
Administrator
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-19 8:42 AM (#7519 - in reply to #7467) (#7519) Top


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Seven Samurais is now over. Results are as usual available here

deu had a perfect 7. He finished with 01:57 to spare. Several others came close, but had typos. ppeetteerr and nyuta take next 2 positions. Congratulations.

Out of 229 players, 157 players solved at least one puzzle (and 1 player was disqualified). Thank you everyone for participating.

Not very encouraging results among Indian players. Rohan, Harmeet and Prasanna take the top spots.

About partial scores : Given the nature of the answer keys, there were lots of wrong submissions. We believed that some of them are typos. So we have been bit lenient this time and awarded 80% to some entries which we thought are typos with some amount of certainty.

Thanks Andrey for all the effort you have put for the contest. Request you to share your thoughts about first contest at LMI.

ETA : deu's score is 815.63, not 815.91
Yuhei Kusui
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-19 9:03 AM (#7520 - in reply to #7467) (#7520) Top




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Although my performance was pretty bad, I really enjoyed the interlocked puzzles; it is something like "1+1+1+1 is more than 4".

Thanks Andrey so much!
AndreyBogdanov
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-19 11:21 AM (#7521 - in reply to #7467) (#7521) Top


Snowmen Author

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Congratulations to Hideaki, Peter and Nagata for taking the top three in this test. Thanks to all participants.
The durations seemed to be too small and after first participants I was afraid nobody could solve all puzzles. So I'm glad to see seven solvers with 28 submissions. But only Hideaki solved all puzzles in time and without mistakes.
It was my first test at LMI and I'm very impressed by Deb's efforts on holding it. He changed scoring system especially for the contest and helped me a lot in all matters. Thanks Deb very much.
I hope to repeat this experience in future and make at least one more contest here.
AndreyBogdanov
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-19 11:35 AM (#7522 - in reply to #7518) (#7522) Top


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MellowMelon - 2012-06-18 11:20 PM
I had no idea the overlapping grids concept could result in challenges like what we got here. Yin-yang and Fences/Slitherlink were probably my favorites.

Yin-Yang is my favorite too. It was a first samurai which I prepared for Moscow Cup competition and it starts the idea.
My second favorite is Easy As ABCD - I had most troubles creating it. Every second clue added to the puzzle led into conflict with previous and I discovered new solving idea. Of course most clues in the final puzzles do not need for unique solutions, but puzzles so was hard enough.
Fences was the most doubtful puzzle - the loop at overlapped parts seems to break rules (it even not a loop :) ). But I think example gives complete picture of the idea.
muhorka
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-19 1:56 PM (#7523 - in reply to #7467) (#7523) Top


DWBH Author

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Thanks for very nice puzzles, i think that the best puzzles were Ying-yang and slitherlink (and this was totally beautiful!!!)
debmohanty
Subject: RE: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-19 2:07 PM (#7525 - in reply to #7467) (#7525) Top



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Congrats deu for the double win.
Realshaggy
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-19 2:31 PM (#7526 - in reply to #7525) (#7526) Top




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Nice Test as always. There seems to be mistakes in the score table, it shows 151.50 Bonus Points for me which are undoubtly false, but nevermind, they don't seem to be included in the sum.
AndreyBogdanov
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-19 2:54 PM (#7527 - in reply to #7526) (#7527) Top


Snowmen Author

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Realshaggy - 2012-06-19 12:31 PM

There seems to be mistakes in the score table, it shows 151.50 Bonus Points for me which are undoubtly false

It's not a bonus - it's a points earnad at the extra time. You submitted your answer for Easy As ABCD in 2 seconds after end. So all your Easy as ABCD points counted as extra points.

Extratime penalty is a thing which I want to discuss. In this test this penalty was relatively high so solvers should consider this extra time not as solving time but only as a time to enter answer keys. This was a vision which I thought before, but after some remarks from solvers I see the other idea - extra time could be considered as a time which allows more solvers finish the test. In this case penalty should be less then now - it should correspond in value to bonus for "before-time" solvers.
What do you think?
prasanna16391
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-19 8:15 PM (#7528 - in reply to #7527) (#7528) Top


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AndreyBogdanov - 2012-06-19 2:54 PM
This was a vision which I thought before, but after some remarks from solvers I see the other idea - extra time could be considered as a time which allows more solvers finish the test. In this case penalty should be less then now - it should correspond in value to bonus for "before-time" solvers.
What do you think?


I definitely agree with that. I was racing against time at the end with Yin Yang and ended up not submitting it at all because I didn't see a profit, even though I solved it pretty fast as a standalone puzzle. I would definitely like to solve more puzzles in the test and if I get penalized I don't mind as long as I get some value for the solve.
Anyway, great puzzles. I got stuck for a massive time on the Fence, and after the test got over realized that the first grid itself I solved was wrong. Solved as Easy as ABCD perfectly for two grids and yet somehow managed to repeat a letter somewhere in the 3rd grid and gave it up. My favorites were Yin Yang and Star Battle, one for enjoyment level, and one for being my quickest solve by far :P
vopani
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-19 9:26 PM (#7529 - in reply to #7467) (#7529) Top


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Very good puzzles Andrey. I would vote for Yin Yang and Star Battle as my favourites.
All grids had very good use of the overlapped regions, and that was what makes these samurais stand out. I had a tough time solving Fence (during and after the test)!

I look forward for another test by you :-)
prasanna16391
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-19 9:45 PM (#7530 - in reply to #7529) (#7530) Top


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Rohan Rao - 2012-06-19 9:26 PM

I would vote for Yin Yang and Star Battle as my favourites.
All grids had very good use of the overlapped regions, and that was what makes these samurais stand out. I had a tough time solving Fence (during and after the test)!


Practice for "copy-paste"?
Para
Subject: Re: Seven Samurais - LMI June Puzzle Test — 16th-18th June 2012 @ 2012-06-20 12:34 AM (#7534 - in reply to #7467) (#7534) Top




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I had fun. I ended up doing better than I thought I would at the start. Fences broke me up in the beginning, so put it down after a while. My favourites were the Easy as ABCD, the Battleships and the Fences.
The Yin Yang really broke me up. I made a correct deduction, except then I made another mistake which i didn't notice. So I thought my first deduction was wrong and wondered how else it could work. Eventually realised there was no other way and solved it, but it really cost 10 minutes too long to solve.
Fences were the hardets for me. I eventually realised the main logic deduction relating to the overlapping areas in Fences, but I had already solved A and B almost completely by then.