Tuesday, May 26, 2020

Puzzle #137 - Distant Pairs (Kurodoko Loop)

So, after I made my first Kurodoko Loop puzzle, I knew I wanted to try to make another one. So I set out on this fairly ambitious and sparse theme, to exploit just how strong the Yajilin constrain can be. There's one step here that's kind of mean, but the rest is completely fair.
I would definitely recommend solving in penpa here- it supports all three of shading cells, drawing lines, and drawing lines over clues which no puzz.link interface does. If I've set this up correctly, there should be a notification when you've solved correctly there, too!

Monday, May 25, 2020

Puzzle #136 - Stripes and... Stripes (Haisu)

This Haisu puzzle is fairly tough going, from what I've gathered. Haisu is a creation of TheGreatEscaper with the following rules:
  • Draw a path on the cells of the grid, starting on "S" and ending on "G". The path must visit all cells. A number N in a region means that the path passes that cell on the N-th entry into the region. For example, a 2 means the path must pass that cell on its second entry into its region.
I really, really hope this puzzle is unique- I kept finding alternate solutions while constructing and every re-test found something new I had missed. Even the one after not finding any ambiguities found something new that, fortunately, contradicted in short order.

Sunday, May 24, 2020

Puzzle #135 - Cellular (Haisu)

Have an easy and moderately large Haisu puzzle before tomorrow. I'm sorry about the puzzle tomorrow. Haisu is a creation of TheGreatEscaper with the following rules:
  • Draw a path on the cells of the grid, starting on "S" and ending on "G". The path must visit all cells. A number N in a region means that the path passes that cell on the N-th entry into the region. For example, a 2 means the path must pass that cell on its second entry into its region.

Saturday, May 23, 2020

Puzzle #134 - Now & Later (Haisu)

Recently, there was a Haisu logic showcase. Haisu is a creation of TheGreatEscaper with the following rules:
  • Draw a path on the cells of the grid, starting on "S" and ending on "G". The path must visit all cells. A number N in a region means that the path passes that cell on the N-th entry into the region. For example, a 2 means the path must pass that cell on its second entry into its region.
Naturally, I entered it and placed somewhere in the middle. I still quite like this theme and this solve and will definitely be making a couple more of these soon.


Tuesday, May 19, 2020

Puzzle #133 - Sidewinder (Snake)

This is a numberless Snake puzzle. The rules of Snake on puzzlink have an additional rule that white circles are part of the snake, but must not be the head or tail.

Monday, May 18, 2020

Puzzles #130, #131 & #132: Kurodoko Trio

So it turns out I've now solved every Kurodoko on puzz.link except one. Here's three more I made, all inspired by either things I found in solving, or musings about the genre I had. No bifurcation is necessary and the logic is well worth discovering, here!
This first one is probably the most difficult of the three, but also my favorite.
Likely the easiest, but a pleasant solve from those who tested it.
The idea in this third puzzle can definitely be used for some more interesting or complicated deductions. It turned out exactly how I wanted it to in the end, though.



Saturday, May 16, 2020

Puzzle #129 - Three's Company (Kurodoko)

I've been solving a lot of Kurodoko lately.  One puzzle had a simple yet surprising interaction that led me to explore more complex interactions, and this was the result.
Thanks to edderiofer, lovemathboy, SoftFro and Plurmorant for helping to test-solve this and ensure that the intended logical step is required.

Wednesday, May 6, 2020

Puzzles #127 & #128 - Ice/Barn Testing

So I found an old Icebarn puzzle I made and turned into a CC2 level. With a little help from edd, I found that it had exactly two solutions, which differed in many ways but most interestingly on a common line with different direction.

So I turned it into two puzzles. Which solves better, A or B?
puzz.link interface A                                 puzz.link interface B


Sunday, May 3, 2020

Puzzle #126 - Where is Black Cells? (Kurodoko Loop)

A couple days ago I had the idea to try to make a Kurodoko and Yajilin hybrid puzzle, themed around one specific break-in. Unfortunately, it didn't seem to work out too well but I did find that the combination had some fun constraints and made this puzzle after the failed attempt.
I'm as surprised as you are that this works. Solve as a normal Kurodoko puzzle. Additionally, draw a loop through all unshaded cells. Alternatively, solve as a normal Yajilin puzzle, where each number must "see" exactly that many cells (including itself).