SM 2024 R2 - Odd Even & Hybrids (8th - 14th Mar) Score Discuss
PR 2024 R3 - Evergreens & MII (29th Mar - 4th Apr) has started Discuss
Get Overlapped! - LMI February Sudoku Test - 15th to 19th Feb40 posts • Page 2 of 2 • 1 2
@ 2019-02-19 11:34 AM (#26650 - in reply to #26608) (#26650) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2019-02-19 11:34 AM

Test Extension


The test is extended by 24 hours, based on specific requests. It will now end on Wednesday (20th Feb) 2359 hours IST.

@ 2019-02-19 5:15 PM (#26652 - in reply to #26648) (#26652) Top

kishy72



Posts: 417
100100100100
Country : India

kishy72 posted @ 2019-02-19 5:15 PM

appetizer8088 - 2019-02-19 3:54 AM

This test's grids were indeed computer generated, so the difficulty may vary; however, the types of puzzles were chosen by myself.
Anyway, it's my LMI debut as an author of a monthly test, thank you for whatever you have done for this test.



Thanks for sharing this info.I invested a considerable amount of time solving IB sudokus and I got stuck in many.Even after sharing this in a group, there were still many left where none could find a continuation.So, I was left wondering if there were givens missing or if the IB sudokus were test solved.

Now, about the contest, No touch and Irregular really killed my performance as the combined time I invested in these two is approximately 45 minutes and that involves an unsuccessful attempt at irregular and multiple guessing in no touch (after a miserable attempt to find logic).

My feedback about the contest is that if majority of sudokus are computer generated, then a caveat maybe given in the IB which states something like "Sudokus may not be logically solveable " . This has even a precedence in a WSC (2010, Philadelphia) where there was a hard classic round and apparently solvers were advised before the start of the round that sudokus might not be completely logically solveable and can require bifurcation.Personally, I am not fully against computer generated sudokus.However, just like others, I too prefer human made much much more.So with a warning like I stated, it gives solvers a huge amount of flexibility. Instead of sticking to a rigid approach of finding logic (like what I adamantly did during the contest) thinking that there must be one when there very well might not be (atleast by human standards), they can quickly take a guess too.

My favourites from the contest are Killer followed by NC.Thanks Huang Yi for your contribution! Hope to see more chinese hand crafted contests, as I am a big fan of chinese authored sudokus be it CSOCs or the ones posted in FB daily league.
@ 2019-02-19 5:16 PM (#26653 - in reply to #26608) (#26653) Top

kishy72



Posts: 417
100100100100
Country : India

kishy72 posted @ 2019-02-19 5:16 PM

 How balanced do you think the puzzle types of this test were? Perfectly balanced
 What was your opinion of the distribution of easy/hard puzzles? Too many hard puzzles
 What did you think about the puzzle quality of the test? Average
 Which set of puzzles did you like the most? Killer Sudoku


@ 2019-02-19 5:22 PM (#26654 - in reply to #26608) (#26654) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2019-02-19 5:22 PM

Scoreboard


The scoreboard is now fixed and shows submissions after 100 minutes as well.

The bonus points for Treble and Samurai will be added after the contest ends.

@ 2019-02-19 10:05 PM (#26655 - in reply to #26608) (#26655) Top

Eugene Porter



Posts: 11

Country : United States

Eugene Porter posted @ 2019-02-19 10:05 PM

Thanks for the contest. I enjoyed the some what large sized formatting of the cells. The double and killer were my favorites. I am curious about the logic used to solve the treble.
@ 2019-02-20 10:49 AM (#26656 - in reply to #26608) (#26656) Top

sstackho



Posts: 18

Country : Canada

sstackho posted @ 2019-02-20 10:49 AM

I'm actually relieved to hear that the Instruction Booklet problems were computer-generated. I was having a very difficult time in solving them, and not enjoying it. I liked the competition puzzles much better (so far!).
@ 2019-02-20 1:08 PM (#26657 - in reply to #26608) (#26657) Top

An LMI player



An LMI player posted @ 2019-02-20 1:08 PM

 How balanced do you think the puzzle types of this test were? A bit skewed
 What was your opinion of the distribution of easy/hard puzzles? Too many hard puzzles
 What did you think about the puzzle quality of the test? Very nice
 What was your opinion of the booklet formatting and printing? Too few pages / too small grids
 Which set of puzzles did you like the most? Diagonal Sudoku


@ 2019-02-20 7:37 PM (#26659 - in reply to #26608) (#26659) Top

An LMI player



An LMI player posted @ 2019-02-20 7:37 PM

 How balanced do you think the puzzle types of this test were? Perfectly balanced
 What was your opinion of the distribution of easy/hard puzzles? Too many hard puzzles
 What did you think about the puzzle quality of the test? Average
 Which set of puzzles did you like the most? Killer Sudoku


@ 2019-02-21 6:17 PM (#26661 - in reply to #26659) (#26661) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2019-02-21 6:17 PM

Congratulations to Tiit Vunk, Tantan Dai and Nikola Zivanovic for taking the top three places. Amongst Indian participants, Congratulations to Prasanna Seshadri, Kishore Kumar and Swaroop Guggilam for taking the top 3 places. Of the 180 participants, 48 were from India and 24 from Japan. 1 participant completed the set within the allotted time.

Thanks Huang Yi for the hard puzzles!

Participants may share feedback on the results page and rate the puzzles on the contest page.

The scoreboard will be finalized over the weekend including "no penalty" claims and bonus for puzzles 12-13.
@ 2019-02-22 11:53 AM (#26669 - in reply to #26608) (#26669) Top

Kumaresan R



Posts: 27
20
Country : India

Kumaresan R posted @ 2019-02-22 11:53 AM

 What was your opinion of the distribution of easy/hard puzzles? Too many hard puzzles
 Which set of puzzles did you like the most? Nonconsecutive Sudoku


@ 2019-02-22 5:28 PM (#26673 - in reply to #26608) (#26673) Top

TiiT



Posts: 139
10020
Country : Estonia

TiiT posted @ 2019-02-22 5:28 PM

Am I the only one who don't get enough information from the feedback summary page?
Which set of puzzles did you like the most? There are 5 choices, but diagram shows only 3 colours and it's quite difficult to tell what colour is what.

TiiT
@ 2019-02-22 10:11 PM (#26675 - in reply to #26673) (#26675) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2019-02-22 10:11 PM

TiiT - 2019-02-22 5:28 PM

Am I the only one who don't get enough information from the feedback summary page?
Which set of puzzles did you like the most? There are 5 choices, but diagram shows only 3 colours and it's quite difficult to tell what colour is what.

TiiT

True. The colour shades have ended up as the same for three choices. While we will try to fix this, you can get more information (currently) by hovering the mouse around the pie chart.
@ 2019-02-22 11:17 PM (#26677 - in reply to #26675) (#26677) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2019-02-22 11:17 PM

@ 2019-02-23 12:32 AM (#26678 - in reply to #26608) (#26678) Top

rob



Posts: 170
100202020
Country : Germany

rob posted @ 2019-02-23 12:32 AM

Just to say thank you to the author, I had fun with the left-over puzzles afterwards, they all seemed to have logical solutions. Well-chosen!

I hope you don't take the criticism here to heart too strongly. While I personally have a preference for hand-constructed puzzles that many here likely share, well-edited computer-generated puzzles certainly have their place. From my experience constructing Sudokus, I also suspect that quite a few established constructors use at least some computer help, particularly when it comes to getting classical Sudokus with non-elementary logic out, or when constructing variants with strong but intractable constraints (non-consecutive, etc.).

Personally I'd be happy to take part in a seond instance.

Edited by rob 2019-02-23 12:33 AM
@ 2019-04-03 1:41 PM (#26828 - in reply to #26608) (#26828) Top

Administrator



2000100050020
Country : India

Administrator posted @ 2019-04-03 1:41 PM

Scoreboard


The (final) scoreboard now includes bonus points for Treble and Samurai as well.

Get Overlapped! - LMI February Sudoku Test - 15th to 19th Feb40 posts • Page 2 of 2 • 1 2
Jump to forum :
Search this forum
Printer friendly version