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Location: India | willwc - 2016-04-13 3:32 AM
Every single puzzle was excellently constructed, and even more impressively the difficulty seemed well-balanced between all twelve.
The authors get lot of credit for this. All authors were very accommodating and designed / agreed to adjust the difficulty level as per our requirements. We had four authors who even decided to write completely new puzzles because the difficulty level did not match with other puzzles. We already have seen one of them here in NEW, HUGE, AND CHALLENGING. I would like to thank all the authors again.
One puzzle - I would like to highlight - that lost bit of it aesthetics is the Neighbours. It had a perfect 12 clues across the diagonal, but we realized it is little too tough, so 4 clues got added at the end. The original version is pasted at the end of this post. [ The pdf file already has both the versions now. ] Thanks James for agreeing to distort this one.
We also got to add couple of clues to Domino Loop and Spiral Galaxy. Their original versions will be uploaded.
It was not mentioned in the IB, but the test solvers for this contest were Palmer Mebane and Rohan Rao. Thanks both of you. It certainly helps to have a top solver like Palmer as a test-solver, we could be very confident about the difficulty level of the puzzles before finalizing.
Original Neigbhours Version
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Posts: 225
Location: Thailand | (Emerges from hiding)
Looking at early WPCs and USPCs, visual puzzles have always been there. WPCs aren't limited to just logic puzzles - as long as they're language-neutral its fair game right? Which is also why I welcome the Casual section of the Puzzle GP with open arms.
So even if I feel visual puzzles deserve their place in these competitions - I won't try to argue about them being logical, cause I feel they're not. With this specific puzzle though, I did attempt to make it more methodological by adding areas where you can cross out to narrow down to the solution.
Initially there was a choice between a word or a visual puzzle. I sent Deb a list of potential candidates (list included scrabble, word search, spot the differences etc) and given the marathon format and the online medium - we decided on the Twins. For this particular fairy tale-themed puzzle (not culture-neutral?) I spent 2 three-hour sessions drawing it up on MS Paint. This is probably the most time (just under 6 hours total) I've ever spent making one puzzle. (Bonus points: can you name the stories where all the characters came from?)
The puzzle had two versions: the black/white one (that you solved) and one with colours (actually just different shades of gray) which should be somewhat easier. After seeing one solver guessing 231(!) times, I felt like hiding from LMI until the marathon was over. Congrats to Nishinanntoka who amazingly finish in just over 10 minutes.
As a competitor, I'm glad to snatch one first place in Sudoku from the Japanese solvers :). Also enjoyed the Futoshiki, Slitherlink was surprisingly fun and impressed at how James managed the LMI theme on the heavily-constrained Neighbours puzzle. |
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WPMM Author
Posts: 66
Location: Hungary | | Your 3 most favorite puzzles of the contest. | Every Second Breakpoint | | | Your 3 most favorite puzzles of the contest. | Pentopia | | | Your 3 most favorite puzzles of the contest. | Neighbours | | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What did you think about the puzzle quality of the test? | Very nice | | | What is your opinion about rules, points and scoring for this test? | Fair | |
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Posts: 16
Location: United Kingdom | | Your 3 most favorite puzzles of the contest. | Linked Poset Futoshiki | | | Your 3 most favorite puzzles of the contest. | Hidoku | | | Your 3 most favorite puzzles of the contest. | Pentopia | | | How balanced do you think the puzzle types of this test were? | Fairly balanced | | | What did you think about the puzzle quality of the test? | Very nice | | | What is your opinion about rules, points and scoring for this test? | Very fair | |
I enjoyed the puzzles, but didn't have time to finish all of them. It felt slightly easier than previous marathon sets. |
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| | Your 3 most favorite puzzles of the contest. | Neighbours | | | Your 3 most favorite puzzles of the contest. | Spiral Galaxy | | | Your 3 most favorite puzzles of the contest. | Hidoku | | | How balanced do you think the puzzle types of this test were? | Fairly balanced | | | What did you think about the puzzle quality of the test? | Fairly Nice | |
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Posts: 1
Location: Poland | | Your 3 most favorite puzzles of the contest. | Every Second Breakpoint | | | Your 3 most favorite puzzles of the contest. | Hex Slitherlink | | | Your 3 most favorite puzzles of the contest. | Linked Poset Futoshiki | | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What did you think about the puzzle quality of the test? | Very nice | | | What is your opinion about rules, points and scoring for this test? | Very fair | |
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Sudoku Day Author
Posts: 103
Location: Serbia | No congratulations for top solvers this time or I miss them?  I am very satisfied with my performances and I had a lot of fun. Almost in all puzzles somehow I didn't feel big size of the grid. Maybe the organizers being carefully too much to avoid hard puzzles and possible complications. Thanks to all who are involved in this contest and congrats to Hideaki and Ken. |
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Puzzle Marathon 2016 - LMI April Puzzle Test - 1st to 12th April
