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prasanna16391
Posts: 1801
  
Country : India | |
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prasanna16391
Posts: 1801
Country : India | Some notes about April Contest 2022Please note this contest will have a slightly different format than regular LMI tests.
Key differences from regular LMI tests:
1. There is no IB (i.e. no Instructions Booklet). If you have any questions about any puzzle, please ask here in the forum.
2. The PB (Puzzle Booklet) does not have any password.
3. You can download the pdf and start solving. Login at the contest page and click on "Start test" to start submitting.
4. There is no time limit other than the 1 week duration. You can submit until the contest ends.
5. There will be some optimizer puzzles. Other puzzles will be very hard (compared to regular LMI tests)
6. Same scores will have same rank (i.e. early submissions do not count towards rank)
Other important points:
7. There shall be no instant grading in this test.
8. There shall be no online solving interface (like penpa) provided for this test.
9. The score page shall be made available later.
10. There shall be 10 pages in the Puzzle Booklet.
11. Participants can submit answers any number of times. The last submission shall be considered for scoring.
12. There shall be no separate notification on submitting answers.
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Gotroch
Posts: 83
Country : Czech Republic | Gotroch posted @ 2022-04-14 9:23 PM I+am+looking+forward+to+solving+Riad%27s+puzzles%2E+%F0%9F%91%8D%0D%0ABut+for+me+this+contest+would+be+much+better+if+the+first+9+puzzles+had+greater+impact+on+the+results+%28current+format+is+all+about+three+optimizer+puzzles%29%2E%0D%0AI+am+missing+good+old+Puzzle+Marathon+contests%2C+harder+puzzles+like+Riad%27s+would+be+perfect+for+it+and+I+would+enjoy+the+contest+more+if+I+can+compare+myself+with+others+on+all+puzzles%2E |
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Veronika
Posts: 7
Country : Slovakia | Looking forward to the puzzles!! |
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prasanna16391
Posts: 1801
Country : India | The puzzles are available now. All the best to everyone! |
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CJK
Posts: 11
Country : Germany | CJK posted @ 2022-04-15 1:07 AM Is it allowed to use programs or similar things, especially for the optimization puzzles? |
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YogaRamadhan
Posts: 1
Country : Indonesia | In+the+example+of+puzzle+number+7%2C+Floating+Clouds%2C+it+seems+that+the+2%C3%972+cloud+is+moving+diagonally+from+the+2nd+to+the+3rd+diagram%2E+Is+that+an+error%3F+They+may+only+move+horizontally+and%2For+vertically%2C+i+suppose%2E |
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prasanna16391
Posts: 1801
Country : India | If they move horizontally "and" vertically that basically results in a possible diagonal movement. |
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Manitary
Posts: 1
Country : Italy | In puzzle 2 (Crossroads), in the description is "the line passing through this strip" the straight line segment between the two turns (one for each side of the strip), or the whole line between the two adjacent strips? |
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prasanna16391
Posts: 1801
Country : India | The former. |
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Aubin Danzo
Posts: 4
Country : France | I have a question about the 3rd Optimizer (the Football one). It is said that a ball cannot cross a circle of the opposite color. But is it possible for the ball to cross a circle of the same color (like if we consider that this player has already got the ball once)? |
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Riad Khanmagomedov
Posts: 234
Country : Russia | Aubin Danzo - 2022-04-15 9:16 PM
I have a question about the 3rd Optimizer (the Football one). It is said that a ball cannot cross a circle of the opposite color. But is it possible for the ball to cross a circle of the same color (like if we consider that this player has already got the ball once)?
No, in this case, the ball is re-addressed to the player who cannot be used. |
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CJK
Posts: 11
Country : Germany | CJK posted @ 2022-04-16 3:41 AM For Record Score, does the goal shot also count as part of the path? Especially, if one team has a player next to the opposite goalkeeper, can the same order of players count twice (since this player can kick the ball directly or diagonally into the goal) or is this counted as the same path? |
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kiwijam
Posts: 187
Country : New Zealand | kiwijam posted @ 2022-04-16 10:24 AM I have some clarifications for the optimizers. Please correct me if I'm wrong.
10. Opti-Road:
There is an error with the example. The column digits should be 22212, not 21212.
Also there is an error with the example answer key: the score for the example is 8, not 9.
11. From 0 to 9:
Without parentheses, we will always do multiplication and division (x and / ) before addition and subtraction (_PLUS_ and - ). Also, dividing by 0 is not allowed.
12. Record Score:
Total score is number of white paths plus number of black paths. The example is simple so I attach another one.
In this, White has 1 path, 1235674 (this is from the previous question from Christian - I think it is not important which direction #4 scores? ).
And Black has 2x2=4 paths, 1234567, 1234576, 1324567, 1324576. It is not possible to go from #4 to #6 directly.
And so the total score for this example is 5.
 (Record Score Example.png)Attachments ----------------  Record Score Example.png (84KB - 2 downloads) |
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moeve
Posts: 2
Country : Germany | moeve posted @ 2022-04-16 12:05 PM What about CJK's question:
CJK - 2022-04-14 10:07 PM
Is it allowed to use programs or similar things, especially for the optimization puzzles?
Of course, programming is usually not allowed in puzzle contests -- but ususally there are no optimization puzzles and especially for No. 11 it is obviously quite tempting to do some... ; ) |
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Riad Khanmagomedov
Posts: 234
Country : Russia | CJK - 2022-04-16 3:41 AM
For Record Score, does the goal shot also count as part of the path? Especially, if one team has a player next to the opposite goalkeeper, can the same order of players count twice (since this player can kick the ball directly or diagonally into the goal) or is this counted as the same path?
This counts as the same path. |
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Riad Khanmagomedov
Posts: 234
Country : Russia | kiwijam - 2022-04-16 10:24 AM
I have some clarifications for the optimizers. Please correct me if I'm wrong.
10. Opti-Road:
There is an error with the example. The column digits should be 22212, not 21212.
Also there is an error with the example answer key: the score for the example is 8, not 9.
11. From 0 to 9:
Without parentheses, we will always do multiplication and division (x and /) before addition and subtraction (_PLUS_ and -). Also, dividing by 0 is not allowed.
12. Record Score:
Total score is number of white paths plus number of black paths. The example is simple so I attach another one.
In this, White has 1 path, 1235674 (this is from the previous question from Christian - I think it is not important which direction #4 scores?).
And Black has 2x2=4 paths, 1234567, 1234576, 1324567, 1324576. It is not possible to go from #4 to #6 directly.
And so the total score for this example is 5.
Thanks James:
10. You're right, I'll correct the example and the meaning of the expression in the answer format.
11. Yes.
12. Yes.
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Christian
Posts: 5
Country : France | Hello,
For optimizer 11, is 2_PLUS_3=5 an equality, or must there be an arithmetic sign on both sides of the equality sign = ? |
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prasanna16391
Posts: 1801
Country : India | I've uploaded a new PB with these changes. |
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Riad Khanmagomedov
Posts: 234
Country : Russia | Christian - 2022-04-16 9:50 PM
Hello,
For optimizer 11, is 2_PLUS_3=5 an equality, or must there be an arithmetic sign on both sides of the equality sign = ?
Hello Christian,
2_PLUS_3=5 is accepted as an answer. |
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forcolin
Posts: 172
Country : ITALY | For Mechanical Sudoku: Can any of the fragments overlap with one of the existing givens?
For LMI road: can two shaded cells (or half cells (share a side?
stefano |
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Riad Khanmagomedov
Posts: 234
Country : Russia | forcolin - 2022-04-17 3:32 PM
For Mechanical Sudoku: Can any of the fragments overlap with one of the existing givens?
For LMI road: can two shaded cells (or half cells (share a side?
stefano
Hi Stefano,
1. It is not forbidden, but the fragments do not overlap each other.
2. Yes. |
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Barbitos
Posts: 6
Country : France | Hi, what about -2*-4=8? it would give more points but i guess it could also be forbidden since in that case the "-" sign is not really used as an operator |
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Carlos
Posts: 8
Country : France | Carlos posted @ 2022-04-19 11:55 AM Hello,
If I am not mistaken, CJK's question doesn't have an answer yet. It would be convenient to know if we have to work only with paper/pencil for the optimization problems or not, in order to be rated with the same criteria.
Thank you very much! |
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moeve
Posts: 2
Country : Germany | moeve posted @ 2022-04-19 3:57 PM moeve - 2022-04-16 9:05 AM
What about CJK's question:
CJK - 2022-04-14 10:07 PM
Is it allowed to use programs or similar things, especially for the optimization puzzles?
Of course, programming is usually not allowed in puzzle contests -- but ususally there are no optimization puzzles and especially for No. 11 it is obviously quite tempting to do some... ; )
?
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@ 2022-04-13 9:54 PM (#30523 - in reply to #30522) (#30523) Top