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Administrator
Posts: 3581
   
Country : India | |
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Administrator
Posts: 3581
Country : India |
Logic Masters India announces January Puzzle Test — Best of LMI Puzzle Tests
Dates : 05 th — 07 th January
Details : here
Authors : Andrey Bogdanov & Vladimir Portugalov
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jalbert
Posts: 6
Country : United States | jalbert posted @ 2013-01-04 2:34 AM The test looks great-- thanks! One comment: I believe the Cubic Star Battle example is not unique. For example, the 5th star in row 3 can be moved to position 6, and the 6th star in row 5 can be moved to position 5. While this solution will have the same answer key as the given solution, there is another solution that has a different answer key (swap the 2nd and 3rd stars in rows 3 and 11; permute the 4th 5th, and 6th stars in the 3rd, 5th, and 10th rows.) On the other hand, maybe I'm all wrong!
In any case, can we assume solution uniqueness? Thanks and happy new year! |
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Para
Posts: 315
Country : The Netherlands | Para posted @ 2013-01-04 4:46 AM jalbert - 2013-01-04 2:34 AM
The test looks great-- thanks! One comment: I believe the Cubic Star Battle example is not unique. For example, the 5th star in row 3 can be moved to position 6, and the 6th star in row 5 can be moved to position 5. While this solution will have the same answer key as the given solution, there is another solution that has a different answer key (swap the 2nd and 3rd stars in rows 3 and 11; permute the 4th 5th, and 6th stars in the 3rd, 5th, and 10th rows.) On the other hand, maybe I'm all wrong!
In any case, can we assume solution uniqueness? Thanks and happy new year!
The puzzle is unique. You have to remember that the stars can't touch eachother, not even diagonally.
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jalbert
Posts: 6
Country : United States | jalbert posted @ 2013-01-04 5:01 AM Yes, I see it now-- thanks! |
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mathcrazy
Posts: 35
Country : India | In Ripple effect, should we start counting from the cell next to the number or from the cell containing the number itself? |
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chaotic_iak
Posts: 241
Country : Indonesia | Cell next to the number. |
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mathcrazy
Posts: 35
Country : India | But some 5s are only 4 cells apart in the sample puzzle in IB. How?
Edited by mathcrazy 2013-01-04 11:46 PM
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Para
Posts: 315
Country : The Netherlands | Para posted @ 2013-01-05 1:34 AM mathcrazy - 2013-01-04 11:32 PM
But some 5s are only 4 cells apart in the sample puzzle in IB. How?
The restriction only counts for every individual row or column. So in each row or column there should be at least N cells between two numbers N. So for example, between two 3's in the same row or column there should be at least 3 cells. Edited by Para 2013-01-05 1:34 AM
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chaotic_iak
Posts: 241
Country : Indonesia | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Perfect answer keys | | | How did you feel about the length / time limit for this test? | Just right | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Most puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | I have a different complaint | |
Booklet formatting and printing: Bold borders and non-bold borders aren't really distinguishable. |
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siddhantmadan
Posts: 1
Country : India | There are no X's in my Cubic Star Battle. Are there any? |
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prasanna16391
Posts: 1913
Country : India | siddhantmadan - 2013-01-05 4:42 PM
There are no X's in my Cubic Star Battle. Are there any?
No. Its fine. |
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prasanna16391
Posts: 1913
Country : India | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Mostly perfect answer keys | | | How did you feel about the length / time limit for this test? | Just right | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Most puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
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debmohanty
Posts: 1869
Country : India | siddhantmadan - 2013-01-05 4:42 PM
There are no ...... Are there any?
No there aren't any. |
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Para
Posts: 315
Country : The Netherlands | Para posted @ 2013-01-05 7:27 PM chaotic_iak - 2013-01-05 2:58 PM
Booklet formatting and printing: Bold borders and non-bold borders aren't really distinguishable.
I didn't have that problem in any puzzle. |
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chaotic_iak
Posts: 241
Country : Indonesia | Perhaps it's the fact that I printscreened the images at a zoom level not 100% (I solve by MS Paint and MS Excel because I don't have any printer easily accessible), so thin lines might seem thick. |
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Gotroch
Posts: 83
Country : Czech Republic | Gotroch posted @ 2013-01-06 7:41 AM | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Mostly perfect answer keys | | | How did you feel about the length / time limit for this test? | A bit too many puzzles | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Most puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
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kishy72
Posts: 424
Country : India | kishy72 posted @ 2013-01-06 11:27 AM | How balanced do you think the puzzle types of this test were? | A bit skewed | | | What was your opinion of the distribution of easy/hard puzzles? | Too many hard puzzles | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Perfect answer keys | | | How did you feel about the length / time limit for this test? | A bit too many puzzles | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Many puzzles were worth too much or too little | | | What was your opinion of the booklet formatting and printing? | Just right | |
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zorko
Posts: 11
Country : Bulgaria | zorko posted @ 2013-01-06 5:45 PM | How balanced do you think the puzzle types of this test were? | Fairly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | A bit hard | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | What was your opinion about the answer key extraction? | Mostly perfect answer keys | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Most puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
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betaveros
Posts: 1
Country : Taiwan | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | What was your opinion about the answer key extraction? | Perfect answer keys | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | All puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
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An LMI player
| An LMI player posted @ 2013-01-06 8:18 PM | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | A bit hard | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Perfect answer keys | | | How did you feel about the length / time limit for this test? | A bit too many puzzles | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Most puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
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An LMI player
| An LMI player posted @ 2013-01-06 10:52 PM | How balanced do you think the puzzle types of this test were? | Fairly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Perfect answer keys | | | How did you feel about the length / time limit for this test? | Just right | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Most puzzles were worth the right amount | |
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zachpuzzle
Posts: 14
Country : United States | What exactly are the rules for when you can and when you can't claim a puzzle's points? Is it exclusively if you think that the puzzle was broken? or also if you misdid the answer key? For my case, I mixed up the white and black cells answering the mochikoro. Does it still count? Should I claim the points?
Thanks! |
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Rubben
Posts: 20
Country : Romania | Rubben posted @ 2013-01-07 2:48 AM | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | A bit hard | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Answer keys could have been better | | | How did you feel about the length / time limit for this test? | A bit too many puzzles | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Many puzzles were worth too much or too little | | | What was your opinion of the booklet formatting and printing? | Just right | |
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An LMI player
| An LMI player posted @ 2013-01-07 2:58 AM | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | Too many hard puzzles | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | What was your opinion about the answer key extraction? | Perfect answer keys | | | How did you feel about the length / time limit for this test? | A bit too many puzzles | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Most puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
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frst
Posts: 2
Country : France | frst posted @ 2013-01-07 3:56 AM | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Mostly perfect answer keys | | | How did you feel about the length / time limit for this test? | A bit too many puzzles | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | All puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
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Administrator
Posts: 3581
Country : India | zachpuzzle - 2013-01-07 2:20 AM
What exactly are the rules for when you can and when you can't claim a puzzle's points? Is it exclusively if you think that the puzzle was broken? or also if you misdid the answer key? For my case, I mixed up the white and black cells answering the mochikoro. Does it still count? Should I claim the points?
Certainly a valid claim in this case. We'll look into it. |
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An LMI player
| An LMI player posted @ 2013-01-07 7:14 AM | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Answer keys could have been better | | | How did you feel about the length / time limit for this test? | Way too few puzzles (too much time) | | | What was your opinion of the booklet formatting and printing? | Just right | |
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greenhorn
Posts: 164
Country : Slovakia | I really enjoyed this test, there were too many great puzzles. In my opinion, three best puzzles were Spiral battleship, Grafitti snake and Cubic sudoku. On the other hand, I still have no clue, how to start Fence samurai, it was the hardest puzzle for me. Consider that 150 minutes is too much, when you are solving during the night. I have lost track of time and missed the chance to submit my solutions  |
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RALehrer
Posts: 31
Country : United States | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | Too many hard puzzles | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Answer keys could have been better | | | How did you feel about the length / time limit for this test? | A bit too many puzzles | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Many puzzles were worth too much or too little | | | What was your opinion of the booklet formatting and printing? | Too few pages / too small grids | |
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An LMI player
| An LMI player posted @ 2013-01-07 8:47 AM | What was your opinion of the distribution of easy/hard puzzles? | Too many hard puzzles | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Perfect answer keys | | | How did you feel about the length / time limit for this test? | Way too many puzzles (too little time) | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Most puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
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prasanna16391
Posts: 1913
Country : India | greenhorn - 2013-01-07 7:34 AM
I really enjoyed this test, there were too many great puzzles. In my opinion, three best puzzles were Spiral battleship, Grafitti snake and Cubic sudoku. On the other hand, I still have no clue, how to start Fence samurai, it was the hardest puzzle for me. Consider that 150 minutes is too much, when you are solving during the night. I have lost track of time and missed the chance to submit my solutions
Fence is all about figuring out the interactions between the grids. Thats all I'll say so that you can check again when you're less confused *been there*  |
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PuzzleScott
Posts: 42
Country : United States | In trio cut, can triominoes touch each other? |
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debmohanty
Posts: 1869
Country : India | PuzzleScott - 2013-01-07 2:09 PM
In trio cut, can triominoes touch each other? Only at a point. (2 Triminos can not share an edge ) |
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PuzzleScott
Posts: 42
Country : United States | | How balanced do you think the puzzle types of this test were? | Fairly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | A bit hard | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Mostly perfect answer keys | | | How did you feel about the length / time limit for this test? | A bit too many puzzles | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | All puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
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An LMI player
| An LMI player posted @ 2013-01-07 3:28 PM | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | What was your opinion about the answer key extraction? | Perfect answer keys | | | How did you feel about the length / time limit for this test? | Just right | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Most puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
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An LMI player
| An LMI player posted @ 2013-01-07 9:04 PM | How balanced do you think the puzzle types of this test were? | Fairly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | A bit hard | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | What was your opinion about the answer key extraction? | Perfect answer keys | | | How did you feel about the length / time limit for this test? | A bit too many puzzles | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Most puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
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zachpuzzle
Posts: 14
Country : United States | Greenhorn, Having done the samuri test really helped because it gave a foot hold on both the masyu and the fences.
Edited by zachpuzzle 2013-01-08 1:38 AM
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macherlakumar
Posts: 123
Country : India | | How balanced do you think the puzzle types of this test were? | Fairly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Mostly perfect answer keys | | | How did you feel about the length / time limit for this test? | Just right | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | All puzzles were worth the right amount | |
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detuned
Posts: 152
Country : United Kingdom | detuned posted @ 2013-01-08 4:14 AM | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | A bit hard | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | What was your opinion about the answer key extraction? | Perfect answer keys | | | How did you feel about the length / time limit for this test? | Just right | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Most puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
A very nice - albeit very challenging - start to the puzzle year. Thanks to Andrey, Vladimir and the organisers! |
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FoxFireX
Posts: 35
Country : United States | debmohanty - 2013-01-07 3:13 AM
PuzzleScott - 2013-01-07 2:09 PM
In trio cut, can triominoes touch each other? Only at a point. (2 Triminos can not share an edge )
This would have been lovely to know when I was solving it. :/ |
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debmohanty
Posts: 1869
Country : India | |
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Administrator
Posts: 3581
Country : India | Making it consistent with other measures at LMI, puzzle ratings in each test will now be weighted by LMI ratings. |
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flk
Posts: 23
Country : Australia | flk posted @ 2013-01-08 8:43 PM Unfortunately my internet went down for the day that I wanted to do this, but I still enjoyed doing it afterwards. Thanks! |
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apollo1001
Posts: 1
Country : United Kingdom | Administrator - 2013-01-07 12:38 AM
zachpuzzle - 2013-01-07 2:20 AM
What exactly are the rules for when you can and when you can't claim a puzzle's points? Is it exclusively if you think that the puzzle was broken? or also if you misdid the answer key? For my case, I mixed up the white and black cells answering the mochikoro. Does it still count? Should I claim the points?
Certainly a valid claim in this case. We'll look into it.
Likewise, I take it I cannot claim for 'miscounting' on the chained battleships (I put 3 for A as it went over 3 squares, rather than its length of 2... )?
Is there a page somewhere on what makes a valid claim? Thanks in advance. |
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MellowMelon
Country : United States | My impression is there are no rules to claiming. If you think you have any grounds to get points, claim and explain why. It's the author's decision as to whether you get them in the end or not.
Test authors handle claims a bit differently anyway.
Edited by MellowMelon 2013-01-09 1:58 AM
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An LMI player
| An LMI player posted @ 2013-01-09 2:39 PM | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion about the answer key extraction? | Answer keys could have been better | | | How did you feel about the length / time limit for this test? | A bit too many puzzles | | | Of the puzzles you solved/attempted, how well did their point values reflect the difficulty/time spent? | Most puzzles were worth the right amount | | | What was your opinion of the booklet formatting and printing? | Just right | |
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forsmarts
Posts: 33
Country : Belarus | The test is over. Thanks to all the puzzlers for participation!
TOP 3:
1. Hideaki Jo (JAP)
2. Palmer Mebane (USA)
3. Ulrich Voigt (GER)
Here are some statistics:
186 competitors started the test
- 135 (72.58%) made at least one entry
- - 131 (97.04%) made at least one correct entry
- - 63 (46.67%) made at least one incorrect entry
The most submitted puzzles are:
- Suraromu (114, 84.44%)
- Ripple Effect (104, 77.04%)
- Make Room For Tapa (99, 73.33%)
The least submitted puzzles are:
- Spiral Battleships (10, 7.41%)
- Chained Battleships (14, 10.37%)
- Border Loop (15, 11.11%)
The puzzles submitted with the highest accuracy:
- Border loop (15/15, 100%)
- Pointing evens (43/44, 97.72%)
- Loop the loop (54/56, 96.42%)
The puzzles submitted with the lowest accuracy:
- Spiral Battleships (7/10, 70%)
- Chained Battleships (10/14, 71.42%)
- Trio Cut (21/28, 75%)
The puzzles with the biggest number of incorrect submissions:
- Ripple Effect (14/104, 13.46%)
- Horse Snake (13/77, 16.88%)
- Make Room For Tapa (13/99, 13.13%)
The puzzles with the highest rating:
- LITS2 (9.10)
- Cubic Star Battle (9.03)
- Fishermen at War (9.02)
The puzzles with the lowest rating:
- Yin-Yang Samurai (7.13)
- Ripple Effect (7.37)
- Horse Snake (7.53)
Also I would like to thank all the authors of the tests used for this compilation. Me and Andrey both had a great time selecting/creating the puzzles for this test.
All the best,
Vladimir |
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tamz29
Posts: 226
Country : Thailand | tamz29 posted @ 2013-01-09 4:35 PM I couldn't solve any Puzzle Fusion puzzles :(
The puzzles were really good. Thanks! |
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AndreyBogdanov
Posts: 44
Country : Russia | Greetings to the winners and thanks to all participants.
Unfortunately I was ill last few days and couldn't watch the contest. Thanks to Vladimir and Deb for handling all claims. |
Best of LMI Puzzle Tests — January Puzzle Test — 5th-7th January 2013