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: 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…

Deception Preview 7: Dock Chains

Battleships Yajilin Put the given fleet in the grid. Ships may be rotated, but not reflected. No two ships may be adjacent, and no ship may cover a number. Afterwards, draw a loop passing all cells that are not a ship segment or a number. The loop’s segments are parallel to the edges of the grid, turning only at cell centers. A number states the number of ship segments visible from the cell; that is, within the line of cells from the cell to the edge of the grid in the direction given in the clue.

Answer key: Enter the lengths of the horizontal/vertical line segments in the row/column respectively. Enter 0 if there is none.

Difficulty 3.5/10 • Target times 01:30 03:00 06:00 15:00
Solution Answer key (highlight →) 22,11 • PNG (not uploaded) • ZIP of PDF (not uploaded) • DOCX (not uploaded)

Deception Preview 7: Dock Chains
Battleships Yajilin

Seventh preview puzzle. Two more to go, and two days to Deception too.

You know, there are three Battleships Yajilin puzzles out there that I found by Google. Perhaps more but I’m too lazy to search further. Yet, all except the most recent (Grant’s in GMPuzzles) has a quirk (Prasanna’s has irregular fleet, Snyder’s has in-grid ships/seas) from what one can expect from a Battleships-Yajilin combo. So I decide to take a shot.

I’ll just give it away that at least one Battleships Yajilin in the test has irregular fleet. Had it turned worse than this, I’d post it as the preview instead. (Yes, my previews are mostly rejects.) Sadly it hadn’t, so it will appear in the test.

I’ll visit this genre in the future. I find it nice to toy with 😀 This, along with Liar Slitherlink and Skyscrapers Kropki, is fighting for the second most-satisfying-to-make genre (the first is obviously Cipher Fillomino because my bias towards Fillomino).

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.