SM 2024 R2 - Odd Even & Hybrids (8th - 14th Mar) Score Discuss
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Riad Khanmagomedov's April Contest — 11th to 19th April 201755 posts • Page 1 of 3 • 1 2 3
@ 2017-04-12 7:46 PM (#22803 - in reply to #22739) (#22803) Top

forcolin




Posts: 171
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Country : ITALY

forcolin posted @ 2017-04-12 7:46 PM

I said I am getting old......

Edited by forcolin 2017-04-12 8:07 PM
@ 2017-04-12 8:53 PM (#22804 - in reply to #22739) (#22804) Top

forcolin




Posts: 171
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Country : ITALY

forcolin posted @ 2017-04-12 8:53 PM

With reference to puzzle 12: how much is the score of a line of cell with a unique path but not forming a loop? (for example a group of 3 cells)
@ 2017-04-12 9:10 PM (#22805 - in reply to #22804) (#22805) Top

Riad Khanmagomedov



Posts: 216
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Riad Khanmagomedov posted @ 2017-04-12 9:10 PM

forcolin - 2017-04-12 8:53 PM

With reference to puzzle 12: how much is the score of a line of cell with a unique path but not forming a loop? (for example a group of 3 cells)

1 mark.
You remind me a hit of Deep Purple, which I played the guitar: "But I feel I'm growing older..."
@ 2017-04-13 4:04 AM (#22806 - in reply to #22739) (#22806) Top

kiwijam



Posts: 181
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kiwijam posted @ 2017-04-13 4:04 AM

"And the songs that I have sung..."

Hi Riad, some 'easy' questions (just to clarify):
11 OPTI-ROLLBALL: We can place a maximum of 3 triangles in the grid?
11 OPTI-ROLLBALL: The path cannot repeat in an infinite loop, so "M14W" is not allowed?
11 OPTI-ROLLBALL: You can enter the start cell again (at 90 degrees), so "K17Z" is 11.5 points?
12 PENTOMINOES AND LINES: We must place all 12 pentominoes in the grid (so placing only 11 is not valid)?
12 PENTOMINOES AND LINES: In every white region, it is possible to visit every cell with a single line. So a white region in the shape of a T-pentomino is not valid?
12 PENTOMINOES AND LINES: If a region has 2 possible loops (e.g. a white 4x3 rectangle), then it gets 'many many' points?
@ 2017-04-13 1:44 PM (#22808 - in reply to #22806) (#22808) Top

Riad Khanmagomedov



Posts: 216
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Country : Russia

Riad Khanmagomedov posted @ 2017-04-13 1:44 PM

kiwijam - 2017-04-13 4:04 AM

"And the songs that I have sung..."

Hi Riad, some 'easy' questions (just to clarify):
11 OPTI-ROLLBALL: We can place a maximum of 3 triangles in the grid?
11 OPTI-ROLLBALL: The path cannot repeat in an infinite loop, so "M14W" is not allowed?
11 OPTI-ROLLBALL: You can enter the start cell again (at 90 degrees), so "K17Z" is 11.5 points?
12 PENTOMINOES AND LINES: We must place all 12 pentominoes in the grid (so placing only 11 is not valid)?
12 PENTOMINOES AND LINES: In every white region, it is possible to visit every cell with a single line. So a white region in the shape of a T-pentomino is not valid?
12 PENTOMINOES AND LINES: If a region has 2 possible loops (e.g. a white 4x3 rectangle), then it gets 'many many' points?

Hi James,
11. You can place a maximum of 3 triangles in the grid, but may be less, such as 2, 1 or 0.
The path cannot repeat in an infinite loop (“echo in the distance” will not help).
The start cell can be crossed again (at 90 degrees).
12. You must place all 12 pentominoes in the grid.
In every white region, it is possible to visit every cell with a single line. A white region in the shape of a T-pentomino is not valid.
If a region has 2 possible loops (e.g. a white 4x3 rectangle), then it gets 2 points. I should have been clearer to say about it in the text.
@ 2017-04-13 8:21 PM (#22809 - in reply to #22739) (#22809) Top

auroux



Posts: 145
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Country : France

auroux posted @ 2017-04-13 8:21 PM

Argh. The goal in 12 is to *minimize* the total score!! Just spent many hours trying to maximize it...
@ 2017-04-13 8:30 PM (#22810 - in reply to #22739) (#22810) Top

chaotic_iak




Posts: 241
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Country : Indonesia

chaotic_iak posted @ 2017-04-13 8:30 PM

To clarify about 12: if there is a loop passing through all cells in a region, the number of marks (or rather, penalty points) you get from that region is equal to the number of loops you have there; otherwise, it's the number of lines?

Edit: More questions.

For 10, the tiebreaker is the total number of letters used in all names?

For 7, a match head catches fire if any of the other cells sharing a side to it also catches fire?

For 5, half-dominoes may not occupy black cells even if the part covering the black cells are empty (no circles)?

Edited by chaotic_iak 2017-04-13 8:36 PM
@ 2017-04-13 9:27 PM (#22812 - in reply to #22810) (#22812) Top

Riad Khanmagomedov



Posts: 216
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Country : Russia

Riad Khanmagomedov posted @ 2017-04-13 9:27 PM

chaotic_iak - 2017-04-13 8:30 PM

To clarify about 12: if there is a loop passing through all cells in a region, the number of marks (or rather, penalty points) you get from that region is equal to the number of loops you have there; otherwise, it's the number of lines?

Edit: More questions.

For 10, the tiebreaker is the total number of letters used in all names?

For 7, a match head catches fire if any of the other cells sharing a side to it also catches fire?

For 5, half-dominoes may not occupy black cells even if the part covering the black cells are empty (no circles)?

12. Yes, number of loops/lines.
10. Maximize the number of names, using the least possible letters.
7. The head of the match lit from the flame in an adjacent cell (sharing a side).
5. The black cell should not be on half-domino.
@ 2017-04-13 10:49 PM (#22813 - in reply to #22739) (#22813) Top

yureklis



Posts: 183
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Country : Turkey

yureklis posted @ 2017-04-13 10:49 PM

It has been so much time to not attempt to solve Riad's puzzles. Yesterday I solved nine of them and I had quite fun. Thanks Riad, really I missed your style.
@ 2017-04-14 1:09 PM (#22814 - in reply to #22813) (#22814) Top

Riad Khanmagomedov



Posts: 216
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Riad Khanmagomedov posted @ 2017-04-14 1:09 PM

yureklis - 2017-04-13 10:49 PM

It has been so much time to not attempt to solve Riad's puzzles. Yesterday I solved nine of them and I had quite fun. Thanks Riad, really I missed your style.

Thank you Serkan, I am very pleased and I'm glad to see you among the participants of April Contest!
@ 2017-04-14 8:45 PM (#22815 - in reply to #22739) (#22815) Top

forcolin




Posts: 171
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Country : ITALY

forcolin posted @ 2017-04-14 8:45 PM

For info. IUPAC has recently annouced the names (and symbols) of 4 new elements.

Nihonium and symbol Nh, for the element 113,
Moscovium and symbol Mc, for the element 115,
Tennessine and symbol Ts, for the element 117, and
Oganesson and symbol Og, for the element 118.

the new complete periodic table is available from [url] https://www.iupac.org/cms/wp-content/uploads/2015/07/IUPAC_Periodic_... [/url]

May be useful for the next contest.


Edited by forcolin 2017-04-14 8:46 PM
@ 2017-04-17 1:43 AM (#22827 - in reply to #22739) (#22827) Top

mstang




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mstang posted @ 2017-04-17 1:43 AM

For #4 (build a circular maze), which direction are the digits going? Are they read outside to inside?
@ 2017-04-17 3:08 AM (#22828 - in reply to #22739) (#22828) Top

mstang




Posts: 74
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Country : United States

mstang posted @ 2017-04-17 3:08 AM

Also for #9 (Fleet between the pentominoes), how does the answer key work? It says "- or + or FILNPSTUVWXY" -- is "-" for no ship and "+" for ship and the letters for pentominoes?

Also I think there is a typo? J isn't a pentomino but N is. Or is that a different naming system?

Edited by mstang 2017-04-17 3:24 AM
@ 2017-04-17 8:46 AM (#22829 - in reply to #22828) (#22829) Top

Administrator



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Country : India

Administrator posted @ 2017-04-17 8:46 AM

mstang - 2017-04-17 3:08 AM

Also for #9 (Fleet between the pentominoes), how does the answer key work? It says "- or + or FILNPSTUVWXY" -- is "-" for no ship and "+" for ship and the letters for pentominoes?

Also I think there is a typo? J isn't a pentomino but N is. Or is that a different naming system?

J is used in this contest.


@ 2017-04-17 2:16 PM (#22830 - in reply to #22827) (#22830) Top

Riad Khanmagomedov



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Riad Khanmagomedov posted @ 2017-04-17 2:16 PM

mstang - 2017-04-17 1:43 AM

For #4 (build a circular maze), which direction are the digits going? Are they read outside to inside?

They are read outside to inside.
@ 2017-04-18 1:40 AM (#22832 - in reply to #22739) (#22832) Top

-.ferchx.-



Posts: 12

Country : Spain

-.ferchx.- posted @ 2017-04-18 1:40 AM

Congratulations Riad. Excellent puzzles. Great fun!
@ 2017-04-18 1:54 PM (#22833 - in reply to #22832) (#22833) Top

Riad Khanmagomedov



Posts: 216
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Country : Russia

Riad Khanmagomedov posted @ 2017-04-18 1:54 PM

-.ferchx.- - 2017-04-18 1:40 AM

Congratulations Riad. Excellent puzzles. Great fun!

Thank you Fernando!
@ 2017-04-18 10:52 PM (#22835 - in reply to #22739) (#22835) Top

Mihalich



Posts: 24
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Country : Ukraine

Mihalich posted @ 2017-04-18 10:52 PM

Thank You, Riad! You have the usual, unusual puzzles - very interesting!
Good luck and new faery tasks!
@ 2017-04-19 11:40 AM (#22841 - in reply to #22739) (#22841) Top

Mihalich



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Country : Ukraine

Mihalich posted @ 2017-04-19 11:40 AM

?12. Esli sushchestvuet tol'ko odin put' obhoda belogo regiona (ne petlya!) - ehto dast tol'ko odno ochko?
@ 2017-04-19 12:06 PM (#22842 - in reply to #22739) (#22842) Top

Mihalich



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Mihalich posted @ 2017-04-19 12:06 PM

#12. If there is only one way to bypass the white region (not loop!) - this will give only one point?
@ 2017-04-19 2:17 PM (#22844 - in reply to #22841) (#22844) Top

Riad Khanmagomedov



Posts: 216
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Country : Russia

Riad Khanmagomedov posted @ 2017-04-19 2:17 PM

Mihalich - 2017-04-19 11:40 AM

?12. Esli sushchestvuet tol'ko odin put' obhoda belogo regiona (ne petlya!) - ehto dast tol'ko odno ochko?

Da, Vladimir, 1 ochko. Spasibo za otzyv! Zavtra uzhe mne predstoit serjozno potruditsja i proverit vse optimajzy.
@ 2017-04-19 3:33 PM (#22845 - in reply to #22739) (#22845) Top

Puzlifouk



Posts: 61
202020
Country : France

Puzlifouk posted @ 2017-04-19 3:33 PM

Hi Riad,
A great contest, as usual.
Just to be sure :
- For 8 Rollball :do WE choose the first direction of the ball, or this direction must be forced by the location of 3 walls around its initial position ? (I mean : is it admitted that less than 3 walls are around the initial position of the ball?)
For 11-Opti-Rollerball : can the ball finish scratched against a wall ?
@ 2017-04-19 6:06 PM (#22846 - in reply to #22845) (#22846) Top

Riad Khanmagomedov



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Riad Khanmagomedov posted @ 2017-04-19 6:06 PM

Puzlifouk - 2017-04-19 3:33 PM

Hi Riad,
A great contest, as usual.
Just to be sure :
- For 8 Rollball :do WE choose the first direction of the ball, or this direction must be forced by the location of 3 walls around its initial position ? (I mean : is it admitted that less than 3 walls are around the initial position of the ball?)
For 11-Opti-Rollerball : can the ball finish scratched against a wall ?

Hi Puzlifouk (your real name is hidden and I cannot use it in Contests):
8. Around the starting positions may not be walls.
11. The ball cannot stay with diagonal walls - in this case the ball needs to keep moving.
@ 2017-04-19 7:30 PM (#22847 - in reply to #22739) (#22847) Top

Puzlifouk



Posts: 61
202020
Country : France

Puzlifouk posted @ 2017-04-19 7:30 PM

OK, Riad, thanks.
If you want to use it in a next contest, my first name is Nicolas :)
So for the 8, you confirm we choose the first direction of the ball, between saveral which are possible.
@ 2017-04-20 3:53 AM (#22849 - in reply to #22739) (#22849) Top

kiwijam



Posts: 181
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Country : New Zealand

kiwijam posted @ 2017-04-20 3:53 AM

Yes, you must choose the first direction for the ball to roll.
Riad Khanmagomedov's April Contest — 11th to 19th April 201755 posts • Page 1 of 3 • 1 2 3
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