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Island - a very elegant logic puzzle http://www.rcbroughton.co.uk/sudoku/forum/viewtopic.php?f=17&t=971 |
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Author: | simon_blow_snow [ Tue Mar 27, 2012 11:52 pm ] |
Post subject: | Island - a very elegant logic puzzle |
I was first introduced to this puzzle genre from Para's blog: puzzleparasite-dot-blogspot-dot-com Para wrote: Island is a genre developed by Naoki Inaba. Fill in some cells to form a single island. The cells with numbers are part of this island. The numbers indicate how many unnumbered cells can be reached from that cell by moving horizontally or vertically. Numbered cells block access. Such simple rules for such an intriguing game! Personally I think it is more fun than Nurikabe and Heyawake, two very well known binary puzzles "in the market". Here is a 6x6 example puzzle provided in Para's blog: For those uninspired, I will include a walkthrough in the next post to indicate how to solve these puzzles using "pure logic". |
Author: | simon_blow_snow [ Tue Mar 27, 2012 11:53 pm ] |
Post subject: | Re: Island - a very elegant logic puzzle |
This is the walkthrough for the example puzzle above: Walkthrough for the 6x6 example puzzle: |
Author: | simon_blow_snow [ Tue Mar 27, 2012 11:53 pm ] |
Post subject: | Re: Island - a very elegant logic puzzle |
Here are two of the easiest Island puzzles from Para's blog, just so you can get a feel of them: I will post the walkthroughs for these puzzles later. |
Author: | simon_blow_snow [ Tue Mar 27, 2012 11:54 pm ] |
Post subject: | Re: Island - a very elegant logic puzzle |
This is my complete walkthrough for the first 8x8 puzzle above: Complete walkthrough for 8x8 puzzle #1: |
Author: | simon_blow_snow [ Tue Mar 27, 2012 11:55 pm ] |
Post subject: | Re: Island - a very elegant logic puzzle |
This is my complete walkthrough for the second 8x8 puzzle above: Complete walkthrough for 8x8 puzzle #2: |
Author: | simon_blow_snow [ Fri Mar 30, 2012 3:21 pm ] |
Post subject: | Re: Island - a very elegant logic puzzle |
I find this puzzle genre appealing because the rules feel the most "natural" to me (e.g. without the quirky "2x2" rule as in Nurikabe or the "spanning 3 rooms" rule as in Heyawake). It works around 2 central concepts (connectivity and area) which are both very intuitive to most. Here are two more from Para's blog, with a slightly higher difficulty than the two above: |
Author: | simon_blow_snow [ Sat Mar 31, 2012 3:09 pm ] |
Post subject: | Re: Island - a very elegant logic puzzle |
Here is my complete walkthrough for the third 8x8 puzzle: Complete walkthrough for 8x8 puzzle #3: |
Author: | simon_blow_snow [ Sun Apr 01, 2012 1:35 pm ] |
Post subject: | Re: Island - a very elegant logic puzzle |
Here is my complete walkthrough for the fourth 8x8 puzzle: Complete walkthrough for 8x8 puzzle #4: Note this one requires an extensive conceptual analysis at the very start without any actual placement, which is the characteristic of a thoughtful puzzle at a decent level of difficulty. The remaining Island puzzles from Para's blog (which I will post soon) all have this characteristic. |
Author: | simon_blow_snow [ Sun Apr 01, 2012 1:41 pm ] |
Post subject: | Re: Island - a very elegant logic puzzle |
These are the remaining 3 puzzles from Para's blog (so far): 8x8 Island #5 8x8 Island #6 9x9 Island #1 Good luck solving them! |
Author: | tarek [ Thu Apr 05, 2012 3:46 pm ] |
Post subject: | Re: Island - a very elegant logic puzzle |
These are very nice. I have to find a way to stretch time to accommodate these. Thanks for sharing |
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