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Nikoli Selection - LMI July 2011 Puzzle Test #1
   LMI Tests -> Monthly Sudoku and Puzzle Tests66 posts • Page 3 of 3 • 1 2 3
rakesh_rai
Subject: Re: Nikoli Selection - LMI July 2011 Puzzle Test #1 @ 2011-07-11 8:36 PM (#5117 - in reply to #5116) (#5117) Top



Mean Minis (2020) Author

Posts: 774
500100100202020
Location: India
It was a nice contest, and there was something for everyone. And this one turned out much better than the first edition. I hope Nikoli Selection 2012 will be even grander.

Congratulations to everyone who finished all 16 from the main section. They are all winners of this contest. And special congratulations to those who managed to solve even one marathon !!!

From the main section, I liked Nurikabe, Hitori, Shikaku, and, of course, Suraromu.
Ours brun
Subject: RE: Nikoli Selection - LMI July 2011 Puzzle Test #1 @ 2011-07-12 1:40 PM (#5123 - in reply to #4980) (#5123) Top





Posts: 148
1002020
Location: France
Very fun test, with some really good puzzles. Nice sudoku, excellent suramoru, ripple effect and LIT(s), amongst others.

I made some stupid tactical choices, like wasting the last 10' on the Hashi, a puzzle I dislike, instead of solving the Numberlink and checking my Fillomino on which I was almost sure of having done something bad - and indeed, I had. But all in all, a satisfying performance for me.

Thanks Tom, and big congrats to Hideaki for such an impressive performance.
rob
Subject: Re: Nikoli Selection - LMI July 2011 Puzzle Test #1 @ 2011-07-13 2:47 AM (#5134 - in reply to #4980) (#5134) Top


Classics & Regions (PR 2016/17) Author

Posts: 170
100202020
Location: Germany
I agree, very fun puzzles. During the contest I had to rely a little bit on intuition on some puzzles (the Yajilin which I've solved properly afterwards, the Fillomino where I should probably have summed up the clues at some point, and also the Nurikabe. I still need to revisit that one.

Just now I looked at the marathon Heyawake, and was wondering if anyone else is having trouble with uniqueness? I solved it properly until just a patch in the bottom right and the top right are not filled in. Aside from room 'B' which is still open, my solution agrees with the correct code. It looks like the bottom right should close up so that connectivity forces a path along the right edge, forcing the top right including B=1, but I think I have a valid solution with B=2…

Most likely I'm missing some wrong room count or three-room violation, but I really can't find any at the moment. (A uniqueness argument forces B=1, so there's a very small chance an ambiguity would have been missed in the tournament.)

Edited by rob 2011-07-13 2:47 AM
detuned
Subject: Re: Nikoli Selection - LMI July 2011 Puzzle Test #1 @ 2011-07-13 3:50 AM (#5135 - in reply to #5134) (#5135) Top




Posts: 152
1002020
Location: United Kingdom
I shall post a solution...give me a sec to do it in paint :)
detuned
Subject: Re: Nikoli Selection - LMI July 2011 Puzzle Test #1 @ 2011-07-13 4:06 AM (#5136 - in reply to #4980) (#5136) Top




Posts: 152
1002020
Location: United Kingdom
Here we go - not quite in Hideaki's time, but I did have to faff around uploading and stuff!

http://www.warwick.ac.uk/~marear/36x20_heyawake_abc_solution.PNG
rob
Subject: Re: Nikoli Selection - LMI July 2011 Puzzle Test #1 @ 2011-07-13 4:23 AM (#5137 - in reply to #4980) (#5137) Top


Classics & Regions (PR 2016/17) Author

Posts: 170
100202020
Location: Germany
Thanks, that helped! A 4-room some distance away had just three black cells… I'll give it a fresh try tomorrow.
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