Asian Sudoku Championship 2025
Sudoku Champs 2024
Riad Khanmagomedov's April Contest — 8th to 18th April 2020166 posts • Page 1 of 7 • 1 2 3 4 5 6 7
@ 2020-04-07 4:46 PM (#27869 - in reply to #27868) (#27869) Top

Administrator



20001000500202020
Country : India

Administrator posted @ 2020-04-07 4:46 PM

Some notes about April Contest 2020

Please note this contest will have a slightly different format than regular LMI tests.

Key differences from regular LMI tests:
• There is no IB (i.e. no Instructions Booklet). If you have any questions about any puzzle, please ask here.
• The PB (Puzzle Booklet) does not have any password.
• You can download the pdf and start solving. Login at the contest page to start submitting.
• There is no time limit. You can submit until the contest ends.
• There will be some optimizer puzzles. Other puzzles will be very hard (compared to regular LMI tests)
• Same scores will have same rank (i.e. early submissions do not count towards rank)

@ 2020-04-08 2:31 PM (#27880 - in reply to #27869) (#27880) Top

Administrator



20001000500202020
Country : India

Administrator posted @ 2020-04-08 2:31 PM

Puzzle Booklet


The Puzzle Booklet is available now.

The contest has started now.

@ 2020-04-08 4:50 PM (#27881 - in reply to #27868) (#27881) Top

anurag



Posts: 136
10020
Country : India

anurag posted @ 2020-04-08 4:50 PM

The example does not comply with "A barrier must be placed between two vertically or horizontally adjacent cells if they contain consecutive digits." in at least 4 pairs. Is it correct that it is not necessary to have a bar bewetwewn every such pair.
@ 2020-04-08 5:47 PM (#27882 - in reply to #27868) (#27882) Top

Puzzle_Maestro



Posts: 25
20
Country : United Kingdom

Puzzle_Maestro posted @ 2020-04-08 5:47 PM

My guess is that they aren't placed because they are irrelevant to the solve, i.e. not in the same row or column as any clue.
@ 2020-04-08 5:58 PM (#27883 - in reply to #27868) (#27883) Top

rob



Posts: 170
100202020
Country : Germany

rob posted @ 2020-04-08 5:58 PM

For puzzle 10, what's a street? Any stretch of white cells of length at least 2? Or do they have to go from one end to the other end of the grid?
@ 2020-04-08 8:16 PM (#27884 - in reply to #27882) (#27884) Top

Administrator



20001000500202020
Country : India

Administrator posted @ 2020-04-08 8:16 PM

Puzzle_Maestro - 2020-04-08 5:47 PM

My guess is that they aren't placed because they are irrelevant to the solve, i.e. not in the same row or column as any clue.

That's correct.
@ 2020-04-08 8:35 PM (#27885 - in reply to #27883) (#27885) Top

Riad Khanmagomedov



Posts: 234
10010020
Country : Russia

Riad Khanmagomedov posted @ 2020-04-08 8:35 PM

rob - 2020-04-08 5:58 PM

For puzzle 10, what's a street? Any stretch of white cells of length at least 2? Or do they have to go from one end to the other end of the grid?


Any stretch of white cells of length at least 2.
@ 2020-04-09 12:46 AM (#27889 - in reply to #27868) (#27889) Top

forcolin




Posts: 172
100202020
Country : ITALY

forcolin posted @ 2020-04-09 12:46 AM

in puzzle 3 hangers there is a sentence " if there are less than two circles in a row or column, there shall be no clue in that row/column".
Is the opposite also true? I mean, if in a row/column there are no clues, in that row/column there are less than 2 circles?Or could it be that clues for a row/column are omitted?
@ 2020-04-09 12:57 AM (#27890 - in reply to #27868) (#27890) Top

Puzzle_Maestro



Posts: 25
20
Country : United Kingdom

Puzzle_Maestro posted @ 2020-04-09 12:57 AM

All rows and columns are fully clued, i.e. if a row or column does not have any clues, then there are less than 2 circles in that row/column.
@ 2020-04-09 2:04 AM (#27891 - in reply to #27868) (#27891) Top

rob



Posts: 170
100202020
Country : Germany

rob posted @ 2020-04-09 2:04 AM

Are the given loop fragments in puzzle 9 of length 1, or could they be part of segments of length 2?
@ 2020-04-09 2:32 AM (#27892 - in reply to #27868) (#27892) Top

Mihalich



Posts: 26
20
Country : Ukraine

Mihalich posted @ 2020-04-09 2:32 AM

Puzzle 11:
1) Can the corners of the cards touch?
2) Can diamonds go one on top of the other?
@ 2020-04-09 7:58 AM (#27894 - in reply to #27868) (#27894) Top

athin




Posts: 11

Country : Indonesia

athin posted @ 2020-04-09 7:58 AM

Puzzle 5: Should all dominoes be connected?
@ 2020-04-09 2:11 PM (#27896 - in reply to #27891) (#27896) Top

Riad Khanmagomedov



Posts: 234
10010020
Country : Russia

Riad Khanmagomedov posted @ 2020-04-09 2:11 PM

rob - 2020-04-09 2:04 AM

Are the given loop fragments in puzzle 9 of length 1, or could they be part of segments of length 2?

These fragments can be of any length.
@ 2020-04-09 2:21 PM (#27898 - in reply to #27892) (#27898) Top

Riad Khanmagomedov



Posts: 234
10010020
Country : Russia

Riad Khanmagomedov posted @ 2020-04-09 2:21 PM

Mihalich - 2020-04-09 2:32 AM

Puzzle 11:
1) Can the corners of the cards touch?
2) Can diamonds go one on top of the other?

1) Yes
2) In the example, cards 3 and 5 share a common diamond.
@ 2020-04-09 2:24 PM (#27899 - in reply to #27894) (#27899) Top

Riad Khanmagomedov



Posts: 234
10010020
Country : Russia

Riad Khanmagomedov posted @ 2020-04-09 2:24 PM

athin - 2020-04-09 7:58 AM

Puzzle 5: Should all dominoes be connected?

It's possible.
@ 2020-04-09 2:48 PM (#27900 - in reply to #27868) (#27900) Top

Kithyane



Posts: 49
2020
Country : France

Kithyane posted @ 2020-04-09 2:48 PM

Puzzle 8 : the 1-2-3-4-5 bottom clue line doesn't go til the upper left end (it stops 2 cells before). Is this normal or a display error ?
@ 2020-04-09 3:35 PM (#27902 - in reply to #27868) (#27902) Top

anurag



Posts: 136
10020
Country : India

anurag posted @ 2020-04-09 3:35 PM

In puzzle 2, a table displays some letters and their values. Is this an illustration or a real mapping? As I see it, it does appear to be illustrative as many of the slots don't have words that satisfy 1 = A ,P, R. I have no way to know unless I understand the rules well. There is no example either

Edited by anurag 2020-04-09 3:50 PM
@ 2020-04-09 4:02 PM (#27903 - in reply to #27868) (#27903) Top

anurag



Posts: 136
10020
Country : India

anurag posted @ 2020-04-09 4:02 PM

Streets of 1x1 are allowed?
Is this a town puzzle with 2x2 white areas not permissible? Or the white strips must be 1XN when evaliating the score? There is no clear demarcation in the description between puzzle rules and score evaluation.

Edited by anurag 2020-04-09 4:11 PM
@ 2020-04-09 7:37 PM (#27904 - in reply to #27868) (#27904) Top

pranavmanu



Posts: 55
2020
Country : India

pranavmanu posted @ 2020-04-09 7:37 PM

In puzzle 2, the mapping of 1 - A,P,R given doesn't seem to fit the grid. Is it applicable to the grid or given as an example?
@ 2020-04-09 7:46 PM (#27905 - in reply to #27904) (#27905) Top

mstang




Posts: 74
202020
Country : United States

mstang posted @ 2020-04-09 7:46 PM

I think the given letters are part of the puzzle, not just an example. Remember that not every name is going to be used.
@ 2020-04-09 7:48 PM (#27906 - in reply to #27868) (#27906) Top

pranavmanu



Posts: 55
2020
Country : India

pranavmanu posted @ 2020-04-09 7:48 PM

Ah,missed that. Thank you for the clarification!
@ 2020-04-09 8:04 PM (#27907 - in reply to #27905) (#27907) Top

anurag



Posts: 136
10020
Country : India

anurag posted @ 2020-04-09 8:04 PM

Not every name is used, but every slot needs to be filled in. There seem to be no names from the list matching the slots.
@ 2020-04-09 8:50 PM (#27908 - in reply to #27868) (#27908) Top

rob



Posts: 170
100202020
Country : Germany

rob posted @ 2020-04-09 8:50 PM

I've solved puzzle 2, it's fine.
@ 2020-04-09 8:52 PM (#27909 - in reply to #27868) (#27909) Top

Kithyane



Posts: 49
2020
Country : France

Kithyane posted @ 2020-04-09 8:52 PM

Puzzle 9 : what does "passing through all rows and columns" mean for the loop ? In the example, the loop doesn't use the top line of the grid at all...
@ 2020-04-09 9:11 PM (#27910 - in reply to #27908) (#27910) Top

anurag



Posts: 136
10020
Country : India

anurag posted @ 2020-04-09 9:11 PM

Thanks, for some reason I was thinking consecutive letters should be the same if the numbers in the cells are equal.
Riad Khanmagomedov's April Contest — 8th to 18th April 2020166 posts • Page 1 of 7 • 1 2 3 4 5 6 7
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