Moscow Puzzle Cup 2024 (8th - 14th Dec) has started Discuss
Asian Sudoku Championship 2025
Sudoku Champs 2024
Riad Khanmagomedov's April Contest — 4th - 12th April 201498 posts • Page 2 of 4 • 1 2 3 4
@ 2014-04-04 10:55 PM (#14819 - in reply to #14642) (#14819) Top

Sergey



Posts: 3

Country : Russia

Sergey posted @ 2014-04-04 10:55 PM

?????, ??????????, ??? ?????????? ??????? ???????? ?? ??????? ?????.
@ 2014-04-04 10:56 PM (#14820 - in reply to #14642) (#14820) Top

Sergey



Posts: 3

Country : Russia

Sergey posted @ 2014-04-04 10:56 PM

Post Russian text of the competition please
@ 2014-04-05 1:05 AM (#14821 - in reply to #14642) (#14821) Top

ksun48



Posts: 29
20
Country : Canada

ksun48 posted @ 2014-04-05 1:05 AM

I have a question about Astronomers: Can there be an angle where the Astronomer sees no planets?
@ 2014-04-05 3:21 AM (#14822 - in reply to #14821) (#14822) Top

prasanna16391



Posts: 1806
1000500100100100
Country : India

prasanna16391 posted @ 2014-04-05 3:21 AM

ksun48 - 2014-04-05 1:05 AM

I have a question about Astronomers: Can there be an angle where the Astronomer sees no planets?


The Astronomer, as is normal vision, can see in (tending to) infinite angles. So the only thing to keep in mind is that there should be X number of visible planets and X number of invisible planets blocked by the visible ones. The angles in the example are just to get a better understanding of the visibility block.
@ 2014-04-05 5:21 AM (#14823 - in reply to #14642) (#14823) Top

FoxFireX




Posts: 35
20
Country : United States

FoxFireX posted @ 2014-04-05 5:21 AM

Just as a formatting note, it would be awesome for puzzles like 3 if the numbers were printed smaller and in a corner so you could write the translation in the box without trying to overwrite the digits. Going well so far, but that will end when I reach the optimizers. :)
@ 2014-04-05 9:40 AM (#14824 - in reply to #14642) (#14824) Top

chaotic_iak




Posts: 241
1001002020
Country : Indonesia

chaotic_iak posted @ 2014-04-05 9:40 AM

In puzzle 4 (Across 4 Grids), might the quadrant with black cells actually be My Line? Like, it's just a regular My Line with some removed squares, and the other quadrant is actually the Diayajilin.
@ 2014-04-05 12:20 PM (#14825 - in reply to #14642) (#14825) Top

Administrator



20001000500202020
Country : India

Administrator posted @ 2014-04-05 12:20 PM

(Potential) Score page

Link : http://logicmastersindia.com/2014/04Contest/score.asp

Please note that correctness of submission is not checked.

@ 2014-04-05 2:23 PM (#14826 - in reply to #14824) (#14826) Top

prasanna16391



Posts: 1806
1000500100100100
Country : India

prasanna16391 posted @ 2014-04-05 2:23 PM

chaotic_iak - 2014-04-05 9:40 AM

In puzzle 4 (Across 4 Grids), might the quadrant with black cells actually be My Line? Like, it's just a regular My Line with some removed squares, and the other quadrant is actually the Diayajilin.


Yes this is possible. You need to prove which is which.
@ 2014-04-05 5:19 PM (#14829 - in reply to #14817) (#14829) Top

prasanna16391



Posts: 1806
1000500100100100
Country : India

prasanna16391 posted @ 2014-04-05 5:19 PM

mathcrazy - 2014-04-04 9:20 PM

Riad Khanmagomedov - 2014-04-04 9:16 PM

mathcrazy - 2014-04-04 8:56 PM

In the Borderless Pentomino example, what significance do the rightmost 3 at the top and bottommost 3 at the right have? There are no pentominoes in those directions...

In example pentominoes can be only into 4 x 4 area.


Then why does the last column contain 3 at the top when it is not part of the 4x4 area? What is the significance of that 3?


Just saw this. That 3 would come into play IF you prove that the 4x4 area is inclusive of it. It can also act as counter-proof that it cannot be a part of the 4x4 area. The important part to remember in both cases is you first need to prove where that area is, so the added clues help in restricting that.
@ 2014-04-06 6:14 PM (#14834 - in reply to #14642) (#14834) Top

vijaya_rajan



Posts: 22
20
Country : India

vijaya_rajan posted @ 2014-04-06 6:14 PM

I have been participating in your sudoku contests since couple of years and love them. Actually they are the highlights of every month. I have a request please. Could you have the sudoku Classic and Variants contest every month in addition to whatever puzzle contests are on ? The puzzles are quite beyond my ken and almost all of them have to be solved offline which is a bit of a challenge for me. Could you please bring back the monthly online sudoku contests ?
@ 2014-04-06 7:35 PM (#14835 - in reply to #14642) (#14835) Top

swaroop2011




Posts: 668
500100202020
Country : India

swaroop2011 posted @ 2014-04-06 7:35 PM

A doubt in 10th Puzzle Optimizer.
It says maximize the are of rectangle. So does that mean if someone has area 26*26 and other has 25*26 but later one has more empty squares.
Does still 26*26 best ?
@ 2014-04-07 2:09 AM (#14837 - in reply to #14642) (#14837) Top

PuzzleScot



Posts: 31
20
Country : United Kingdom

PuzzleScot posted @ 2014-04-07 2:09 AM

Astronomer: Must the astronomer be able to see the whole of 16 planets (as in the example), or just some part of them?
@ 2014-04-07 4:02 AM (#14838 - in reply to #14837) (#14838) Top

prasanna16391



Posts: 1806
1000500100100100
Country : India

prasanna16391 posted @ 2014-04-07 4:02 AM

PuzzleScot - 2014-04-07 2:09 AM

Astronomer: Must the astronomer be able to see the whole of 16 planets (as in the example), or just some part of them?


Some part is fine. The invisible ones must be fully invisible.
@ 2014-04-07 11:28 AM (#14839 - in reply to #14834) (#14839) Top

rvarun



Posts: 268
100100202020
Country : India

rvarun posted @ 2014-04-07 11:28 AM

vijaya_rajan - 2014-04-06 6:14 PM

I have been participating in your sudoku contests since couple of years and love them. Actually they are the highlights of every month. I have a request please. Could you have the sudoku Classic and Variants contest every month in addition to whatever puzzle contests are on ? The puzzles are quite beyond my ken and almost all of them have to be solved offline which is a bit of a challenge for me. Could you please bring back the monthly online sudoku contests ?


Hi. We will definitely continue with the Beginners Contest in Sudoku and Puzzles in the forthcoming months. In the meantime, you can participate in the Monthly contests so that you will be able to know the different types and difficulty levels in World Championships. Also, you can participate in April Contest by Riad, which is currently running. This has few Sudoku variants, which will definitely interest you.
@ 2014-04-07 1:33 PM (#14840 - in reply to #14642) (#14840) Top

chaotic_iak




Posts: 241
1001002020
Country : Indonesia

chaotic_iak posted @ 2014-04-07 1:33 PM

In the quadrant with My Line, all cells (except the black ones if it happens to be the bottom-right) should be passed right? As in, there's no extra "black square" or anything to the quadrant with My Line?
@ 2014-04-07 3:08 PM (#14841 - in reply to #14840) (#14841) Top

prasanna16391



Posts: 1806
1000500100100100
Country : India

prasanna16391 posted @ 2014-04-07 3:08 PM

chaotic_iak - 2014-04-07 1:33 PM

In the quadrant with My Line, all cells (except the black ones if it happens to be the bottom-right) should be passed right? As in, there's no extra "black square" or anything to the quadrant with My Line?


Yes. No extra black square. All white cells are passed.
@ 2014-04-07 7:12 PM (#14842 - in reply to #14642) (#14842) Top

Grizix



Posts: 30
20
Country : France

Grizix posted @ 2014-04-07 7:12 PM

Hi

In the My Line quadrant, does a segment of turn could leave the quadrant ? For example, can the 2 on the last row have a segment of his turn crossing the quadrant border ?
Does crossing the border cuts the length of a segment ? For example, with the 1 near the median horizontal border, could it cross this border and still count as one segment ? (as there is only one segment IN the quadrant)

Nice puzzles anyway !
@ 2014-04-07 7:30 PM (#14843 - in reply to #14842) (#14843) Top

Riad Khanmagomedov



Posts: 235
10010020
Country : Russia

Riad Khanmagomedov posted @ 2014-04-07 7:30 PM

Grizix - 2014-04-07 7:12 PM

Hi

In the My Line quadrant, does a segment of turn could leave the quadrant ? For example, can the 2 on the last row have a segment of his turn crossing the quadrant border ?
Does crossing the border cuts the length of a segment ? For example, with the 1 near the median horizontal border, could it cross this border and still count as one segment ? (as there is only one segment IN the quadrant)

Nice puzzles anyway !

Yes, a segment of turns can leave the quadrant. In the example I specifically gave one such angle (in cell with "?").
@ 2014-04-07 7:51 PM (#14844 - in reply to #14642) (#14844) Top

mathcrazy



Posts: 35
20
Country : India

mathcrazy posted @ 2014-04-07 7:51 PM

It is very difficult to make out the different regions in Sudoku with Stars. Please make the borders more prominent in future.
@ 2014-04-08 3:24 AM (#14850 - in reply to #14835) (#14850) Top

kiwijam



Posts: 187
10020202020
Country : New Zealand

kiwijam posted @ 2014-04-08 3:24 AM

swaroop2011 - 2014-04-07 2:35 AM
A doubt in 10th Puzzle Optimizer.
It says maximize the are of rectangle. So does that mean if someone has area 26*26 and other has 25*26 but later one has more empty squares.
Does still 26*26 best ?


Any 26x26 solution is better than any 25x26 solution.
Only if two solutions have the same area, then the solution with more white squares is better.
If two solutions have the same area and the same number of white squares then they will get the same score.

PS: I notice the first two answer fields for puzzle 10 are validating that M and N are between 1 and 19 only, but if you have M or N >19 then ignore the warning and submit anyway. The earlier announcement in this forum says that the warnings are not always 100% accurate.
@ 2014-04-08 4:49 AM (#14852 - in reply to #14642) (#14852) Top

anti-inequality



Posts: 1

Country : Turkey

anti-inequality posted @ 2014-04-08 4:49 AM

In Diayajilin "cannot be adjacent" means can't touch even diagonally or cant't touch side to side, which one?
@ 2014-04-08 9:23 AM (#14855 - in reply to #14852) (#14855) Top

kiwijam



Posts: 187
10020202020
Country : New Zealand

kiwijam posted @ 2014-04-08 9:23 AM

anti-inequality - 2014-04-08 11:49 AM

In Diayajilin "cannot be adjacent" means can't touch even diagonally or cant't touch side to side, which one?


In Diayajilin the black cells can touch diagonally, but not orthogonally (side-to-side).
This is the same as normal Yajilin rules, the only difference is how the number clues behave.
@ 2014-04-08 2:06 PM (#14875 - in reply to #14850) (#14875) Top

Administrator



20001000500202020
Country : India

Administrator posted @ 2014-04-08 2:06 PM

kiwijam - 2014-04-08 3:24 AM

PS: I notice the first two answer fields for puzzle 10 are validating that M and N are between 1 and 19 only, but if you have M or N >19 then ignore the warning and submit anyway. The earlier announcement in this forum says that the warnings are not always 100% accurate.
Fixed this warning. It shouldn't show warning with numbers <= 26 now.
@ 2014-04-08 9:36 PM (#14877 - in reply to #14642) (#14877) Top

swaroop2011




Posts: 668
500100202020
Country : India

swaroop2011 posted @ 2014-04-08 9:36 PM

just a query
for answer key of Trid and sudoku on cube we have to enter 9,9,9,9.. or 99999 without commas ?
@ 2014-04-08 10:18 PM (#14879 - in reply to #14642) (#14879) Top

devarajand



Posts: 114
100
Country : India

devarajand posted @ 2014-04-08 10:18 PM

In Trid can the numbers be repeated in the diagonals. That is the bold diagonals of rectangle/sides of triangles.
Riad Khanmagomedov's April Contest — 4th - 12th April 201498 posts • Page 2 of 4 • 1 2 3 4
Jump to forum :
Search this forum
Printer friendly version