I also submitted a correct answer in the last 5 minutes, for 9 (first try) and for 12 (not first try). However, neither is reflected in the final score, even though the online form marked both as correct. Did I do something wrong in submission?

The scoreboard will be corrected. It is a known issue and is currently reflecting submissions till 90 minutes. However, all submissions have been captured and there is no reason to worry. We shall let you know once the scoreboard issue is resolved.

How well did you like the theme of the contest?	I somewhat liked the theme
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

How well did you like the theme of the contest?	I really liked the theme
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

Thank you!

Favorite Puzzles:

03 Group Sum
06 Classic
08 Hamle
10 Killer Joker

How well did you like the theme of the contest?	I really liked the theme
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
Your 3 most favorite puzzles of the contest.	Group Sum Sudoku
Your 3 most favorite puzzles of the contest.	Instructionless Sudoku
Your 3 most favorite puzzles of the contest.	Trio Sum Frame Sudoku

I don't like math variants in usual.
So apart from leaving that, i was able to solve most of it.
Definitely hard set of puzzles. But nonetheless excellent quality and wonderful puzzles.

How well did you like the theme of the contest?	I really liked the theme
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
Your 3 most favorite puzzles of the contest.	Killer Joker Sudoku
Your 3 most favorite puzzles of the contest.	Instructionless Sudoku
Your 3 most favorite puzzles of the contest.	Group Sum Sudoku

How well did you like the theme of the contest?	I really liked the theme
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
Your 3 most favorite puzzles of the contest.	Killer Joker Sudoku
Your 3 most favorite puzzles of the contest.	Touchy Sudoku
Your 3 most favorite puzzles of the contest.	Group Sum Sudoku

How well did you like the theme of the contest?	I really liked the theme
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
Your 3 most favorite puzzles of the contest.	Instructionless Sudoku
Your 3 most favorite puzzles of the contest.	Symmetry Dots Sudoku
Your 3 most favorite puzzles of the contest.	Touchy Sudoku

In some cases I got the idea why they were not included in WSC. Few of them were quite tricky to solve and rather required some other skills than sudoku. Few of them on the other hand were really nice and such a pity they didn't appear in WSC.
But this is the idea of having this competition. Still a chance to try them. And generally all the puzzles were interesting.

-Personal favourite was instructionless. Wonderful idea. But I kind of understand the reason why it wasnt included.
-What I don't understand is why extra region wasn't included. It's 10 times better puzzle than this coded sudoku which was ridiculous just to see by looking it. ER was perfect to see the solution in 1 minute.
-Hamle would have been a better sudoku than battleship. But that is just my opinion. The idea of having digits in second grid is a good idea because it turns it closer to sudoku.
-Group sum and product included a bit more serious math than it would be appropriate. Good to see them here. Also just my thoughts. In some way trio frame felt also a bit frustrating but maybe I just don't feel well with these math puzzles.
Joker would have fit well also in wsc same weay as clock faces or battenburg. I actually liked the killer more and at the same time I liked it less. It was one controversial round for me then.
-In symmetry dots it was difficult to get the rules at first. I think I got the rules after 4-th reading. But I have never said that I am very good at english.
-Touchy was tricky and challenging, but very nicely and logically solvable.

How well did you like the theme of the contest?	I really liked the theme
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
Your 3 most favorite puzzles of the contest.	Trio Sum Frame Sudoku
Your 3 most favorite puzzles of the contest.	Instructionless Sudoku
Your 3 most favorite puzzles of the contest.	Symmetry Dots Sudoku

How well did you like the theme of the contest?	I really liked the theme
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
Your 3 most favorite puzzles of the contest.	Group Sum Sudoku
Your 3 most favorite puzzles of the contest.	Instructionless Sudoku
Your 3 most favorite puzzles of the contest.	Group Product Sudoku

How well did you like the theme of the contest?	I really liked the theme
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
Your 3 most favorite puzzles of the contest.	Killer Joker Sudoku
Your 3 most favorite puzzles of the contest.	Instructionless Sudoku
Your 3 most favorite puzzles of the contest.	Trio Sum Frame Sudoku

How well did you like the theme of the contest?	I really liked the theme
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
Your 3 most favorite puzzles of the contest.	Group Product Sudoku
Your 3 most favorite puzzles of the contest.	Killer Joker Sudoku
Your 3 most favorite puzzles of the contest.	Trio Sum Frame Sudoku

Tough puzzles, very well designed. Cheers!

How well did you like the theme of the contest?	I really liked the theme
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
Your 3 most favorite puzzles of the contest.	Classic Sudoku
Your 3 most favorite puzzles of the contest.	Alphabet Sudoku
Your 3 most favorite puzzles of the contest.	Touchy Sudoku

Whilst I feel the concept of "is it a sudoku" is a little too experimental for a world championship, I find its exclusion because it was too puzzle-ish to be a little strange. If you were erring on the side of caution here, the best thing would have been to can the entire round - but given that didn't happen I felt that the Hamle clues resolved very quickly using simple sudoku-like logic scanning rows and columns, and would have been perfect for the concept of the round.

I imagine its evil "logidoku" twin could also have been made sufficiently awful to solve too!

Can't say I much enjoyed the Touchy puzzle (these are in general not particularly fun to solve), so I'm glad that didn't make the cut. The instructionless also looks pretty tricky, but I haven't yet started to solve it.

How well did you like the theme of the contest?	I really liked the theme
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
Your 3 most favorite puzzles of the contest.	Trio Sum Frame Sudoku
Your 3 most favorite puzzles of the contest.	Killer Joker Sudoku
Your 3 most favorite puzzles of the contest.	Group Sum Sudoku

How well did you like the theme of the contest?	I really liked the theme
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
Your 3 most favorite puzzles of the contest.	Hamle Sudoku
Your 3 most favorite puzzles of the contest.	Trio Sum Frame Sudoku
Your 3 most favorite puzzles of the contest.	Symmetry Dots Sudoku

The test is now over. Thanks to all 133 participants who took part. Congratulations to Kota Morinishi, Tantan Dai and Michael Ley for taking the top three positions in this contest. Among Indian participants, Congratulations to Kishore, Swaroop and Harmeet for finishing at the top.

Killer Joker was the least solved but also had the most accurate submissions. And the most solved sudoku was alphabet sudoku.

Thank you for sharing the puzzles and congratulations to top3 for a very good performance! It was definitely an enjoyable time spent :)

Hi!
I don't understand the sudoku Killer Joker Sudoku...
Someone can explain it to me? Thanks

The number 4 is the joker. It takes the value 8 to make the sum 16 in the cage on the top left.