Pentakaideca - LMI September Monthly Sudoku Test - 20th to 25th Sep 201947 posts • Page 1 of 2 • 1 2
@ 2019-09-11 7:05 PM (#27275) (#27275) Top

Administrator



20001000100100100202020
Country : India

Administrator posted @ 2019-09-11 7:05 PM

@ 2019-09-14 1:18 AM (#27279 - in reply to #27275) (#27279) Top

Administrator



20001000100100100202020
Country : India

Administrator posted @ 2019-09-14 1:18 AM

Instruction Booklet


The IB is available now at the contest page: http://logicmastersindia.com/2019/09S2/

The test starts on 20th September at 1200 hours IST and ends at 2359 hours IST on 24th September.

@ 2019-09-15 2:07 AM (#27280 - in reply to #27275) (#27280) Top

Timjamiller



Posts: 40
2020
Country : United States

Timjamiller posted @ 2019-09-15 2:07 AM

For Kid Sudoku, is it allowed for consecutive digits in external sums to overlap? That is to say, could "3412..." be represented by 78573... or something similar? Also, are all cells in rows/columns with given sums included in at least one sum? So that 341 could NOT be represented by 31...?

For Renban Sudoku, does the "distinct consecutive" refer to within each shaded group (so no repeating in a shaded area) or to each group in the puzzle (so no two shaded regions can contain the same combination of digits) or both?

These are ambiguous to me from the instructions and the solutions, and I can see them having an impact on the solving. Thank you!
@ 2019-09-15 6:35 AM (#27281 - in reply to #27280) (#27281) Top

rakesh_rai




Posts: 774
500100100202020
Country : India

rakesh_rai posted @ 2019-09-15 6:35 AM

Timjamiller - 2019-09-15 2:07 AM

For Renban Sudoku, does the "distinct consecutive" refer to within each shaded group (so no repeating in a shaded area) or to each group in the puzzle (so no two shaded regions can contain the same combination of digits) or both?

1. Within each shaded area no numbers can repeat. But the numbers must form a set of consecutive numbers.

2. It is possible for two (or more) shaded regions to have the same combination of digits.
@ 2019-09-15 6:46 AM (#27282 - in reply to #27280) (#27282) Top

rakesh_rai




Posts: 774
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Country : India

rakesh_rai posted @ 2019-09-15 6:46 AM

Timjamiller - 2019-09-15 2:07 AM

For Kid Sudoku, is it allowed for consecutive digits in external sums to overlap? That is to say, could "3412..." be represented by 78573... or something similar? Also, are all cells in rows/columns with given sums included in at least one sum? So that 341 could NOT be represented by 31...?

1. No overlap is allowed. So 341256789 will be represented as 876789. We keep on adding numbers till the sum is less than or equal to 9. There is only one way to represent any row/column.

2. All cells are included if a clue is given. The sum of the numbers in an external clue willl always be 45.

Some examples:
829356471 will be represented as 82986471
356271894 will be represented as 888894
192837465 will be represented as 192837465
And so on
@ 2019-09-15 7:36 PM (#27283 - in reply to #27275) (#27283) Top

Ronaldo



Posts: 13

Country : India

Ronaldo posted @ 2019-09-15 7:36 PM

How to play windoku sudoku and equal sum line sudoku..I m not able to play
@ 2019-09-15 10:44 PM (#27284 - in reply to #27283) (#27284) Top

rakesh_rai




Posts: 774
500100100202020
Country : India

rakesh_rai posted @ 2019-09-15 10:44 PM

Ronaldo - 2019-09-15 7:36 PM

How to play windoku sudoku and equal sum line sudoku..I m not able to play

I am unable to understand the question. Do you need clarity on the rules? Or the example?
@ 2019-09-16 9:37 AM (#27285 - in reply to #27275) (#27285) Top

Ronaldo



Posts: 13

Country : India

Ronaldo posted @ 2019-09-16 9:37 AM

No examples like how to play I can’t solve windoku given in the example
@ 2019-09-16 11:52 AM (#27286 - in reply to #27275) (#27286) Top

Ronaldo



Posts: 13

Country : India

Ronaldo posted @ 2019-09-16 11:52 AM

I am even not able to fill even a single digit except last row 1 in the whole windoku...any trick..any hint will do
@ 2019-09-16 6:03 PM (#27287 - in reply to #27286) (#27287) Top

rakesh_rai




Posts: 774
500100100202020
Country : India

rakesh_rai posted @ 2019-09-16 6:03 PM

Ronaldo - 2019-09-16 11:52 AM

I am even not able to fill even a single digit except last row 1 in the whole windoku...any trick..any hint will do

I think you meant 1 in last column in row 6.
Also, you can refer to the attached image (from sudokuwiki.org) for hints. All cells of the same colour must contain digits 1-9 exactly once.
@ 2019-09-17 9:12 PM (#27288 - in reply to #27286) (#27288) Top

DanAvi



Posts: 22
20
Country : India

DanAvi posted @ 2019-09-17 9:12 PM

Hi Ronaldo,

Let me try to help you.

You rightly found that 1's spot to be R6C9.

The next number I placed was 7 in R8C7, by this sequence of eliminations:
Because of 7 in R3C1 & R5C9, 7 can be only in one of R6C2 or R6C3. So 7 can be only in one of R9C2 or R9C3.(R6C2 and R6C3 are part of the same window so other cells in that window can not have 7). Because 7 is either in R9C2 or R9C3 and there is a 7 in R5C9, so we can place a 7 in R8C7 for that box.

The next number I placed was 7 in R7C5, now find the logic behind it and you are on your way to solving this.

It took me much longer than usual to solve this sudoku, so I think the level of difficulty is rather very high. So do not sweat it, if you can not solve this. Try the web for some easy Windoku puzzle and you will be able to solve I suppose. Again this is only the Instruction sample and it indicates that in the test this puzzle carries only 2 points, so I expect this puzzle to be very easy in the test.

Best of luck
@ 2019-09-18 9:25 AM (#27289 - in reply to #27288) (#27289) Top

Ronaldo



Posts: 13

Country : India

Ronaldo posted @ 2019-09-18 9:25 AM

Hey can u help me with equal sum line sudoku also¿I am also not able to fill that also
@ 2019-09-18 1:51 PM (#27290 - in reply to #27288) (#27290) Top

Ronaldo



Posts: 13

Country : India

Ronaldo posted @ 2019-09-18 1:51 PM

Hey Daniel I m again stuck with windoku.after filling R2C3 R3C4 R3C5 R7C5.R8C7 and R6C9.can u help me further

Edited by Ronaldo 2019-09-18 2:08 PM
@ 2019-09-18 4:08 PM (#27291 - in reply to #27289) (#27291) Top

rakesh_rai




Posts: 774
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Country : India

rakesh_rai posted @ 2019-09-18 4:08 PM

Ronaldo - 2019-09-18 9:25 AM

Hey can u help me with equal sum line sudoku also¿I am also not able to fill that also
Try to find out what the "equal sum" could be. What could be the minimum possible value on the slanting line. Also try to look at other lines and eliminate possibilities. Also, you can fill some cells by classic rules.
@ 2019-09-18 5:04 PM (#27292 - in reply to #27291) (#27292) Top

Ronaldo



Posts: 13

Country : India

Ronaldo posted @ 2019-09-18 5:04 PM

Can u quote some example..I m again able to fill only R3 C7, R9 C7, R4C9
@ 2019-09-18 11:25 PM (#27293 - in reply to #27292) (#27293) Top

Anu G



Posts: 17

Country : India

Anu G posted @ 2019-09-18 11:25 PM

Hi I can try helping you. Look at the long slanting line and calculate the minimum sum. There is a 5 in box 3. The minimum in box 5 will be 1,2,3 which is 6. The minimum in box 7 will be 1,4,5 which equals 10. so the minimum possible sum in a line is 5+6+10 =21. Now look at box 1. 2 can come only in R1C2.or R1C3. If 2 is in R1C3, you will need a minimum of 19 in the 2 cells below (R2C3 and R3C3) which is not possible. So 2 can fit only in R1C2. You can try the rest after this.

Edited by Anu G 2019-09-18 11:39 PM
@ 2019-09-19 12:04 PM (#27294 - in reply to #27290) (#27294) Top

Ronaldo



Posts: 13

Country : India

Ronaldo posted @ 2019-09-19 12:04 PM

Plz anybody can help me further
@ 2019-09-20 9:19 AM (#27295 - in reply to #27294) (#27295) Top

Ronaldo



Posts: 13

Country : India

Ronaldo posted @ 2019-09-20 9:19 AM

Have. Any one filled windoku completely...if yes, can someone give me hint¿
@ 2019-09-20 10:32 AM (#27296 - in reply to #27275) (#27296) Top

Administrator



20001000100100100202020
Country : India

Administrator posted @ 2019-09-20 10:32 AM

Puzzle Booklet (PB)


The password protected PB is now available for download at the contest page: http://logicmastersindia.com/2019/09S2/

The test starts on 20th September at 1200 hours IST and ends at 2359 hours IST on 24th September.

Ignore the question on "3 favourite puzzles" in the feedback section.

@ 2019-09-20 10:34 AM (#27297 - in reply to #27295) (#27297) Top

rakesh_rai




Posts: 774
500100100202020
Country : India

rakesh_rai posted @ 2019-09-20 10:34 AM

Ronaldo - 2019-09-20 9:19 AM

Have. Any one filled windoku completely...if yes, can someone give me hint¿
Solutions are at the end of the Instruction Booklet. You may refer to the solutions also for clarity.
@ 2019-09-20 11:59 AM (#27298 - in reply to #27297) (#27298) Top

Administrator



20001000100100100202020
Country : India

Administrator posted @ 2019-09-20 11:59 AM

The test has started.
@ 2019-09-21 9:22 AM (#27299 - in reply to #27275) (#27299) Top

Sedho



Posts: 13

Country : Philippines

Sedho posted @ 2019-09-21 9:22 AM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Little Killer Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


Feedback page asks for 3 favorite puzzles, but the choices are about whether the puzzles were worth the right amount, so I'll answer here instead:

3 favorite puzzles: Little Killer, X-Sums, Odd-Even Bridge
@ 2019-09-21 12:10 PM (#27300 - in reply to #27275) (#27300) Top

aashay



Posts: 46
2020
Country : India

aashay posted @ 2019-09-21 12:10 PM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Fairly Nice
 Which set of puzzles did you like the most? Little Killer Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Most puzzles were worth the right amount


Thanks Rakesh for a refreshing set of Sudokus. Really enjoyed solving them. I was a bit patchy and messed up Killer multiple times, but the overall quality of Sudokus was quite good.
@ 2019-09-21 8:18 PM (#27301 - in reply to #27275) (#27301) Top

kishy72



Posts: 401
100100100100
Country : India

kishy72 posted @ 2019-09-21 8:18 PM

 What was your opinion of the distribution of easy/hard puzzles? Just right
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Little Killer Sudoku


Great set of sudokus Rakesh ! I thoroughly enjoyed the contest and it was hard to choose a favourite amongst these.However, if I were to pick a few, LK, X-Sums and Equal sum Lines would top the list in that order.

The sudokus were very nicely constructed and were clean as a whistle.I was mostly concerned about Kid sudoku as I haven't seen this type much before in the past.Fortunately, I got through that rather fast after getting the idea.I had major hiccups in Rhombus and Diagonal towards the end but thankfully I didn't break those.

Thanks a lot for the contest !

@ 2019-09-21 11:41 PM (#27302 - in reply to #27275) (#27302) Top

An LMI player



An LMI player posted @ 2019-09-21 11:41 PM

 What was your opinion of the distribution of easy/hard puzzles? Too many medium difficult puzzles
 What did you think about the puzzle quality of the test? Very nice
 Which set of puzzles did you like the most? Little Killer Sudoku
 Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? Many puzzles were worth too much or too little


Pentakaideca - LMI September Monthly Sudoku Test - 20th to 25th Sep 201947 posts • Page 1 of 2 • 1 2
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