Thread - Riad Khanmagomedov's April Contest

@ 2022-04-14 9:23 PM (#30525 - in reply to #30522) (#30525) Top

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

@ 2022-04-14 11:01 PM (#30526 - in reply to #30522) (#30526) Top

Veronika

Posts: 7

Country : Slovakia

Veronika posted @ 2022-04-14 11:01 PM

Looking forward to the puzzles!!

@ 2022-04-14 11:59 PM (#30528 - in reply to #30522) (#30528) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2022-04-14 11:59 PM

The puzzles are available now. All the best to everyone!

@ 2022-04-15 1:07 AM (#30529 - in reply to #30522) (#30529) Top

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?

@ 2022-04-15 5:03 AM (#30530 - in reply to #30522) (#30530) Top

YogaRamadhan

Posts: 1

Country : Indonesia

YogaRamadhan posted @ 2022-04-15 5:03 AM

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

@ 2022-04-15 9:12 AM (#30531 - in reply to #30530) (#30531) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2022-04-15 9:12 AM

If they move horizontally "and" vertically that basically results in a possible diagonal movement.

@ 2022-04-15 2:12 PM (#30532 - in reply to #30522) (#30532) Top

Manitary

Posts: 1

Country : Italy

Manitary posted @ 2022-04-15 2:12 PM

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?

@ 2022-04-15 2:53 PM (#30533 - in reply to #30522) (#30533) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2022-04-15 2:53 PM

The former.

@ 2022-04-15 9:16 PM (#30534 - in reply to #30522) (#30534) Top

Aubin Danzo

Posts: 4

Country : France

Aubin Danzo posted @ 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)?

@ 2022-04-15 11:32 PM (#30535 - in reply to #30534) (#30535) Top

Riad Khanmagomedov

Posts: 234

Country : Russia

Riad Khanmagomedov posted @ 2022-04-15 11:32 PM

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.

@ 2022-04-16 3:41 AM (#30536 - in reply to #30522) (#30536) Top

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?

@ 2022-04-16 10:24 AM (#30537 - in reply to #30522) (#30537) Top

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)

@ 2022-04-16 12:05 PM (#30538 - in reply to #30529) (#30538) Top

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... ;)

@ 2022-04-16 1:25 PM (#30539 - in reply to #30536) (#30539) Top

Riad Khanmagomedov

Posts: 234

Country : Russia

Riad Khanmagomedov posted @ 2022-04-16 1:25 PM

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.

@ 2022-04-16 1:39 PM (#30540 - in reply to #30537) (#30540) Top

Riad Khanmagomedov

Posts: 234

Country : Russia

Riad Khanmagomedov posted @ 2022-04-16 1:39 PM

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.

@ 2022-04-16 9:50 PM (#30541 - in reply to #30522) (#30541) Top

Christian

Posts: 5

Country : France

Christian posted @ 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 = ?

@ 2022-04-16 10:26 PM (#30542 - in reply to #30540) (#30542) Top

prasanna16391

Posts: 1801

Country : India

prasanna16391 posted @ 2022-04-16 10:26 PM

I've uploaded a new PB with these changes.

@ 2022-04-17 12:20 AM (#30544 - in reply to #30541) (#30544) Top

Riad Khanmagomedov

Posts: 234

Country : Russia

Riad Khanmagomedov posted @ 2022-04-17 12:20 AM

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.

@ 2022-04-17 3:32 PM (#30545 - in reply to #30522) (#30545) Top

forcolin

Posts: 172

Country : ITALY

forcolin posted @ 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

@ 2022-04-17 6:30 PM (#30546 - in reply to #30545) (#30546) Top

Riad Khanmagomedov

Posts: 234

Country : Russia

Riad Khanmagomedov posted @ 2022-04-17 6:30 PM

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.

@ 2022-04-19 12:02 AM (#30547 - in reply to #30545) (#30547) Top

Barbitos

Posts: 6

Country : France

Barbitos posted @ 2022-04-19 12:02 AM

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

@ 2022-04-19 11:55 AM (#30549 - in reply to #30529) (#30549) Top

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!

@ 2022-04-19 3:57 PM (#30551 - in reply to #30538) (#30551) Top

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... ;)

@ 2022-04-19 5:43 PM (#30552 - in reply to #30522) (#30552) Top

forcolin

Posts: 172

Country : ITALY

forcolin posted @ 2022-04-19 5:43 PM

puzzle 11: only integer numbers or decimal allowed?

@ 2022-04-19 10:20 PM (#30553 - in reply to #30552) (#30553) Top

Riad Khanmagomedov

Posts: 234

Country : Russia

Riad Khanmagomedov posted @ 2022-04-19 10:20 PM

forcolin - 2022-04-19 5:43 PM

puzzle 11: only integer numbers or decimal allowed?

The intermediate result can be fractional, but it is forbidden to construct numbers using a dot or comma.


	@ 2022-04-14 9:23 PM (#30525 - in reply to #30522) (#30525) Top
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
	@ 2022-04-14 11:01 PM (#30526 - in reply to #30522) (#30526) Top
Veronika Posts: 7 Country : Slovakia	Veronika posted @ 2022-04-14 11:01 PM Looking forward to the puzzles!!
	@ 2022-04-14 11:59 PM (#30528 - in reply to #30522) (#30528) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2022-04-14 11:59 PM The puzzles are available now. All the best to everyone!
	@ 2022-04-15 1:07 AM (#30529 - in reply to #30522) (#30529) Top
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?
	@ 2022-04-15 5:03 AM (#30530 - in reply to #30522) (#30530) Top
YogaRamadhan Posts: 1 Country : Indonesia	YogaRamadhan posted @ 2022-04-15 5:03 AM 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
	@ 2022-04-15 9:12 AM (#30531 - in reply to #30530) (#30531) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2022-04-15 9:12 AM If they move horizontally "and" vertically that basically results in a possible diagonal movement.
	@ 2022-04-15 2:12 PM (#30532 - in reply to #30522) (#30532) Top
Manitary Posts: 1 Country : Italy	Manitary posted @ 2022-04-15 2:12 PM 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?
	@ 2022-04-15 2:53 PM (#30533 - in reply to #30522) (#30533) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2022-04-15 2:53 PM The former.
	@ 2022-04-15 9:16 PM (#30534 - in reply to #30522) (#30534) Top
Aubin Danzo Posts: 4 Country : France	Aubin Danzo posted @ 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)?
	@ 2022-04-15 11:32 PM (#30535 - in reply to #30534) (#30535) Top
Riad Khanmagomedov Posts: 234 Country : Russia	Riad Khanmagomedov posted @ 2022-04-15 11:32 PM 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.
	@ 2022-04-16 3:41 AM (#30536 - in reply to #30522) (#30536) Top
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?
	@ 2022-04-16 10:24 AM (#30537 - in reply to #30522) (#30537) Top
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)
	@ 2022-04-16 12:05 PM (#30538 - in reply to #30529) (#30538) Top
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... ;)
	@ 2022-04-16 1:25 PM (#30539 - in reply to #30536) (#30539) Top
Riad Khanmagomedov Posts: 234 Country : Russia	Riad Khanmagomedov posted @ 2022-04-16 1:25 PM 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.
	@ 2022-04-16 1:39 PM (#30540 - in reply to #30537) (#30540) Top
Riad Khanmagomedov Posts: 234 Country : Russia	Riad Khanmagomedov posted @ 2022-04-16 1:39 PM 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.
	@ 2022-04-16 9:50 PM (#30541 - in reply to #30522) (#30541) Top
Christian Posts: 5 Country : France	Christian posted @ 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 = ?
	@ 2022-04-16 10:26 PM (#30542 - in reply to #30540) (#30542) Top
prasanna16391 Posts: 1801 Country : India	prasanna16391 posted @ 2022-04-16 10:26 PM I've uploaded a new PB with these changes.
	@ 2022-04-17 12:20 AM (#30544 - in reply to #30541) (#30544) Top
Riad Khanmagomedov Posts: 234 Country : Russia	Riad Khanmagomedov posted @ 2022-04-17 12:20 AM 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.
	@ 2022-04-17 3:32 PM (#30545 - in reply to #30522) (#30545) Top
forcolin Posts: 172 Country : ITALY	forcolin posted @ 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
	@ 2022-04-17 6:30 PM (#30546 - in reply to #30545) (#30546) Top
Riad Khanmagomedov Posts: 234 Country : Russia	Riad Khanmagomedov posted @ 2022-04-17 6:30 PM 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.
	@ 2022-04-19 12:02 AM (#30547 - in reply to #30545) (#30547) Top
Barbitos Posts: 6 Country : France	Barbitos posted @ 2022-04-19 12:02 AM 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
	@ 2022-04-19 11:55 AM (#30549 - in reply to #30529) (#30549) Top
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!
	@ 2022-04-19 3:57 PM (#30551 - in reply to #30538) (#30551) Top
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... ;) ?
	@ 2022-04-19 5:43 PM (#30552 - in reply to #30522) (#30552) Top
forcolin Posts: 172 Country : ITALY	forcolin posted @ 2022-04-19 5:43 PM puzzle 11: only integer numbers or decimal allowed?
	@ 2022-04-19 10:20 PM (#30553 - in reply to #30552) (#30553) Top
Riad Khanmagomedov Posts: 234 Country : Russia	Riad Khanmagomedov posted @ 2022-04-19 10:20 PM forcolin - 2022-04-19 5:43 PM puzzle 11: only integer numbers or decimal allowed? The intermediate result can be fractional, but it is forbidden to construct numbers using a dot or comma.