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Riad Khanmagomedov
Posts: 234
 
Country : Russia | mathcrazy - 2014-04-04 8:48 PM
For My Line of Puzzle 4, does the reverse rule apply? In the sense, if the line makes a turn at a cell, should that cell definitely contain a number?
I answered a similar question from Matus:
In cells without digit or "?" where the line turning angle lengths may be different. But may also be identical. |
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Riad Khanmagomedov
Posts: 234
Country : Russia | 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. |
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mathcrazy
Posts: 35
Country : India | 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?
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Sergey
Posts: 3
Country : Russia | Sergey posted @ 2014-04-04 10:55 PM ?????, ??????????, ??? ?????????? ??????? ???????? ?? ??????? ?????. |
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Sergey
Posts: 3
Country : Russia | Sergey posted @ 2014-04-04 10:56 PM Post Russian text of the competition please |
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ksun48
Posts: 29
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? |
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prasanna16391
Posts: 1801
 
Country : India | 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. |
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FoxFireX
Posts: 35
Country : United States | 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. :) |
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chaotic_iak
Posts: 241
Country : Indonesia | 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. |
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Administrator
Country : India | |
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prasanna16391
Posts: 1801
Country : India | 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. |
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prasanna16391
Posts: 1801
Country : India | 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. |
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vijaya_rajan
Posts: 22
Country : India | 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 ? |
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swaroop2011
Posts: 668
Country : India | 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 ? |
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PuzzleScot
Posts: 31
Country : United Kingdom | Astronomer: Must the astronomer be able to see the whole of 16 planets (as in the example), or just some part of them? |
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prasanna16391
Posts: 1801
Country : India | 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. |
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rvarun
Posts: 268
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. |
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chaotic_iak
Posts: 241
Country : Indonesia | 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? |
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prasanna16391
Posts: 1801
Country : India | 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. |
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Grizix
Posts: 30
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 ! |
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Riad Khanmagomedov
Posts: 234
Country : Russia | 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 "?" ). |
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mathcrazy
Posts: 35
Country : India | It is very difficult to make out the different regions in Sudoku with Stars. Please make the borders more prominent in future. |
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kiwijam
Posts: 187
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. |
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anti-inequality
Posts: 1
Country : Turkey | In Diayajilin "cannot be adjacent" means can't touch even diagonally or cant't touch side to side, which one? |
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kiwijam
Posts: 187
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. |
@ 2014-04-04 9:12 PM (#14815 - in reply to #14812) (#14815) Top