Tag Archives: yajilin

Puzzle 72: Drunk Man

Short Yajilin Follow regular Yajilin rules: This is loop style puzzle. The loop may not pass through any gray cell. White cells not passed by the loop may not be orthogonally adjacent; note that a white cell not passed by the loop may still be orthogonally adjacent to a gray cell. A number with an arrow indicates the number of cells not passed by the loop, looking from the cell with the number in the arrow’s direction, up to the edge of the grid.

In addition, no straight segment of the loop may be more than two units long. In other words, whenever the loop goes straight through a cell, it must turn both before and after it.

Expected difficulty Medium-hard • Answer • Comment/E-mail if you want a solution to be published

Puzzle 72: Short Yajilin

Puzzle 72: Drunk Man
Short Yajilin

Re title: Originally I wanted to give the variation name “Drunk Yajilin”, but that’s too weird. And well, drunk people can’t walk straight for long, or so the “usual” “sources” say.

Re difficulty: I consider hard. Prasanna says medium, close to hard. So let’s make it medium because Prasanna is more skilled and less biased (any author will be biased to their own works) than me.

Well… Not much comment, actually. My birthday is coming. All my puzzle projects (Fillomino crazy variants batch, Fillomino Variations pack, perhaps more that I don’t remember) are abandoned except for the upcoming LMI test in early 2014. Probably February, but not confirmed yet. I have homework and I make puzzles…

Puzzle 45: Which Way

Yajilin+. Follow regular Yajilin rules (draw a loop on cells’ centers and shade the unvisited non-given squares black so no two black squares share an edge; clues show the number of black cells in the given direction). But the directions of the arrows are unknown; it’s one of the given two directions. (The other direction may or may not have the given number of black squares.)

Sometimes there seems like not enough clues to solve a mystery, but it solves cleanly anyway. Sky has tried to construct such mystery, and apparently he’s satisfied with this easy-medium brainteaser… Need to put even less clues.

Puzzle 45: Which Way Yajilin+

Puzzle 45: Which Way
Yajilin+

It might be very early to tell this, but stay tuned for May 2013.

Puzzles 34-35: It’s Now Regiothmetics Class!

New genre! Regiothmetics Yajilin. I need a good name for “Regiothmetics”.

Follow usual Yajilin rules (draw a loop and shade all the remaining non-given cells black; black cells may not be adjacent). In addition, there are two types of clues:
– Blue, no sign, size-12: The number indicates the number of black cells in the region plus in the line of sight (from the arrow following the direction of the arrow up to the edge of the grid). Black cells that are in both the region and the line of sight are counted twice.
– Brown, sign (+ or -), size-10: The number indicates the number of black cells in the region minus in the line of sight (from the arrow following the direction of the arrow up to the edge of the grid). Black cells that are in both the region and the line of sight cancel each other.

Everybody! It’s the beginning of Regiothmetics class! To become a genius like me, do your best!
Our class begins, with a simple medium 7×7 puzzle,
If you’re done and you still want to be more genius like me, try this easy-medium 10×10 puzzle!
But wait! Did I just reverse the difficulty?
The answer is, the answer is, I didn’t, I didn’t, that’s because, that’s because,
The smaller is indeed the harder one!

Puzzle 34: Regiothmetics Class! Assignment 1!
Regiothmetics Yajilin

Puzzle 35: Regiothmetics Class! Assignment 2!
Regiothmetics Yajilin

UPDATE (20-Nov-2012, 18.36 UTC+7): Fixed Puzzle 34 (R7C1 to make it solvable) and replaced Puzzle 35 (the former is utterly broken).

If you are one of the top three, you get extra points!

But seriously. I offer this thing again. Be one of the first three people to submit the correct solutions to both grids, and you get a puzzle as a gift. You can choose the genre and stuffs like that.

Yes, even if you’re colorblind you should be able to distinguish non-signed givens and signed givens. And their sizes differ by 2 points. Should be sufficient. Although when I add more clue types (possible seeing recent Surveyors Heyawake) I need more non-color cues.

Yay. Did I say today (and yesterday) is one of my most productive blogging and puzzling days ever?

Puzzle 27: Yajilin Smoothie

Because I begin to title my puzzles, I start serving smoothies.

Yajilin, Smooth Turn variation: The loop cannot have two adjacent turns facing the same direction (aka a small U-turn).

Puzzle 27: Yajilin Smoothie
Yajilin (Smooth Variation)

Puzzle 28 should be already out by the time anyone besides me reads this.

mathgrant and MellowMelon are at it again: Fillomino Fillia 2. I will post a few Fillomino puzzles until the test ends (save for Puzzle 30, which if it’s a Fillomino will create some bad repetition (Puzzle 10 was a 17×17 Fillomino)), but not necessarily practice puzzles for the event. EDIT (05-Dec-2012): Fail. Only one Potpourri posted within time. The two authors will be posting Fillomino puzzles which will be practice puzzles. Let’s see.

Puzzle 17: Yajilin… Cell or Segment?

Because I don’t have a better name. Yajilin CoS, easy because it’s my first Yajilin CoS.

Inspired from Castle Wall’s givens’ meaning. Follow usual Yajilin rules, but now each given gives either the number of black cells or the number of loop segments in the pointed direction (may be both).

Puzzle 17: Yajilin… Cell or Segment?

Yay for all-1 clues. I think this genre can have many extraordinary tricks… Let’s see.

In case you haven’t noticed, there is a new Puzzle 16.

Puzzle 11: Yajilin

Yajilin. Shade in black cells and make a loop visiting all remaining white cells (not including clue cells). Black cells may not be orthogonally adjacent; each clue cell points at the number of black cells in the direction of the arrow, passing over other clue cells. Should be some kind of easy.

Puzzle 11: Yajilin

First, I attempted to make exactly identical clues symmetrically (see R1C4 and R10C7, R4C7 and R7C4). But then I got stuck because it’s just impossible to put a 3-clue, putting a 0-clue kinda gives stuffs for long lines, and I just got bored. Hence the given result. Yes, symmetrical givens because it’s quite easy making that in Yajilin.

To keep you entertained, there will be two more puzzles, each appearing in 12 hours after the latest one. If I manage to construct another before all puzzles are released, then there will be more this weekend.