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49. Seven by Seven

Rip old phone but then again it still kinda works Anyways, this puzzle uses a constraint that I didn't invent, but implemented to SudokuMaker for use. And yeah it's factor lines. The black color for the lines loosely came from one of Marty Sears' fabulous Rat Run puzzles. Creator's time: 34:12 Rules:  Normal 9×9 Sudoku rules apply. Variant 1: Factor Lines \ For every pair of adjacent digits on a black factor line, one must be a factor/multiple of the other. (Example: 4-2-6-3-9-1-7) Variant 2: Kropki \ Digits separated by a white dot are consecutive; digits separated by a black dot have a 1:2 ratio. Not all dots are necessarily given. LMD link :  https://logic-masters.de/Raetselportal/Raetsel/zeigen.php?id=000V0M Difficulty : 9.0/14 Online interface (SudokuPad)
Recent posts

48. Birthday Look-Air

 Happy birthday to uhhh... me! Because this post was published on Sep. 17, 2026 (my time zone), i.e. my birthday lol So here's a Look-Air with a variant that already exists as a Sudoku variant, but as far as I know, I'm the first to apply it to Look-Air. The rules for this variant in Look-Air are slightly different from the variant's rules in Sudoku. And they're a bit confusing. As for more uni lore moments... there isn't really that much to talk about other than me taking a test recently. And also me having salmon at uni for the first time lol Creator's time: 3:09.8 Rules:  Standard Look-Air Rules \ Shade some cells so that each orthogonally connected area of shaded cells is in the shape of a square. Clues represent how many of the five cells forming a cross around the clue (including itself) are shaded. Two shaded squares of the same size may not have a vertical or horizontal line of unshaded cells between them, unobstructed. Variant 1: X-Sums \ Numbers outsid...

47. Sunrise

Uni is unleashing its wild side on me. So things are probably going to slow down on here. Maybe not right now, but things will eventually slow down. But on the other hand, I'm having quite a lot of fun in uni too. Specifically, there's a bit more lore involving the professor I mentioned in Vel (44) that I want to put here. This professor showed a video about the topic we were studying in class. This video was actually one of their YouTube videos, but they skipped over the part with their face to make it LOOK like it wasn't theirs. But we still found out haha. Anyways, about this puzzle --- I wanted to make it easy so my IRL friends from back in my hometown could solve this. Sure, it's still a bit hard, but at the same time I also wanted to preserve symmetry. ...what do you mean, "there's something hidden in the thumbnail?!" and it works for this obscure arg called "project: actinium???" Creator's time: 12:26 Rules:  Normal 9×9 Sudoku rules a...

46. Only One

Nothing new from uni that I'd say is really interesting  Anyways, have a classic Look-Air. Creator's time: 1:38.0 Rules:  Standard Look-Air Rules \ Shade some cells so that each orthogonally connected area of shaded cells is in the shape of a square. Clues represent how many of the five cells forming a cross around the clue (including itself) are shaded. Two shaded squares of the same size may not have a vertical or horizontal line of unshaded cells between them, unobstructed. Difficulty : 7.0/14 Online interface (puzz.link)

Deckardv Puzzle Gauntlet Recap + Experience

This event on Deckardv 's puzzle server is similar to a puzzle night—except it's much longer, and there's only 1 puzzle per day. A total of 260 participants signed up, and due to this, most of the zones I mentioned in my post on Puzzle Night 3  are quite different. This event's zones are as follows: 1st - 3rd : Podium 4th - 10th: Purple Zone 11th - 30th: Blue Zone 31st - 75th: Green Zone 76th - 150th: Orange Zone 151st and below: Red Zone I participated and placed... well, you'll see at the very end of this post. My goal was to place in the "blue" zone or higher. Puzzle 1: Star Battle \ Time: 5:24 \ Placement: 28th The first puzzle was a moderate star battle (slightly harder than GAPP-level) with two stars per row, column, and region. Just like the last puzzle event, my puzz.link UI was in Japanese, but I still knew where most of the buttons were. After looking at this puzzle's results, I thought I would place in the blue zone most of the time, but......

45. Airy Loop

help I'm having instances of girls I don't directly know randomly talking to me at uni Anyways, this genre WAS one that I thought I had invented, but if you change all the clues to 5-n, where n is the value of the clue, you basically have a Look-Air (Loop) puzzle. rip me ig But I'll still attach the example puzzle ( link ) for this genre. The solution to the example can be found here , Creator's time: 3:36.0 Rules:  Standard Look-Air-Like Loop Rules \ Draw a non-intersecting loop through the centers of some cells. Numbers represent how many of the five cells forming a cross around the clue (including itself) contain part of the loop. Each orthogonally connected area of cells not used by the loop must be in the shape of a square. Two unused squares of the same size may not have a vertical or horizontal line of used cells between them, unobstructed. Answer check only looks for the loop. Difficulty : 6.0/14 Online interface (Penpa+)

44. Vel

So on 8/26/2026, I was trying to verify this puzzle before the lecture for one of my classes started. And then the professor came with a skateboard and helmet and immediately loaded up the NYT Connections for us to help solve. But I did it earlier that day and STILL decided to give hints. And when he divides the class into small groups, he has all the group names be synonymous with "Group 1" instead of something like "Group 1," "Group 2," etc. to make everyone feel like a winner!  Anyways, back to the puzzle. I wanted a 10-cell renban heart centered in the puzzle. But I can't add a 10-cell renban line because with the digits from 1-9, we're only able to add a renban lines with 9 cells. So what did I do? I added a 10th digit. And with this deficit sudoku setup, we're just throwing certain sudoku logic out the window. And yes I know a "vel" (object) means something else but in reality this puzzle is dedicated to uhhh... Vel. The one on ...