Helix
by Gerhard1963
Difficulty ●●○○
Parity Lines - Little Killers - Kropki
If you squint your eyes, it kinda looks like a DNA-Helix from afar.
Aura
by Gerhard1963
Difficulty ●●○○
Quartet Lines - Cages
This is my third quartet line puzzle. Out of the ones I have made so far, this is my favourite one. Seems like cages are a really good partner for the quartets.
Transaction
by Gerhard1963
Difficulty ●●○○
Arrows - XV Pairs - Odd
I finally put XV Pairs into 2-digit arrow bulbs!
Tadpoles
by Gerhard1963
Difficulty ●●●○
Modular Lines - German Whispers - Kropki - Thermometers
I always wanted to mix the German whispers and the modular lines constraint. The colours just look so good together!
Hex
by Gerhard1963
Difficulty ●●●○
Quartet Lines - X/V Pairs - Cages
This is the follow up puzzle to “Incantation”. I did up the ante a bit to hopefully better demonstrate what the constraint can do.
Incantation
by Gerhard1963
Difficulty ●●○○
Quartet Lines - Kropki - Even
Here is an introductory puzzle to a fun little line constraint I thought of a while ago.
District
by Gerhard1963
Difficulty ●●○○
German Whispers - Dutch Whispers - Modular Lines
Region Sum Lines - Renban Lines - Parity Lines
I always wanted an excuse to plaster a bunch of different line constraints into the same puzzle, so I made this one look like the London Underground map.
Loki
by Gerhard1963
Difficulty ●●○○
Modular Lines - Kropki
Like other gods, Loki is a shape shifter and in separate sources appears in the form of a salmon, a mare, a fly, and possibly an elderly woman named Þökk (Old Norse 'thanks').
Freyja
by Gerhard1963
Difficulty ●●○○
Renban Lines - Kropki
Freyja rules over her heavenly field, Fólkvangr, where she receives half of those who die in battle. The other half go to the god Odin's hall, Valhalla.
Múspell
by Gerhard1963
Difficulty ●●○○
Dutch Whispers - Kropki
Muspelheim was described as a hot and glowing land of fire, home to the fire giants, and guarded by Surtr, with his flaming sword. It is featured in both the creation and destruction stories of Norse myth.
Nifl
by Gerhard1963
Difficulty ●●○○
Region Sum Lines - Kropki
Niflheim was primarily a realm of primordial ice and cold, with the frozen rivers of Élivágar and the well of Hvergelmir, from which come all the rivers.
Pulsar
by Gerhard1963
Difficulty ●○○○
Cages - X/V Pairs
While setting Lock-On I got the idea to make an easier, more approachable, and honestly really good-looking version of the puzzle.
Lock-On
by Gerhard1963
Difficulty ●●●○
Cages - X/V Pairs - Jigsaw
User's next attack is guaranteed to hit. In Generations 2-3, Lock-On has 100% accuracy. When a Pokémon is holding Normalium Z and uses its Z-Power, Lock-On turns into Z-Lock-On and raises Speed one stage, in addition to its usual effect as above.
Interlocking
by Gerhard1963
Difficulty ●●●○
Lovely Whispers - Kropki
I wanted to make a puzzle for Valentine’s Day, and I thought using the lovely whispers from “Companion Cube” would be a great fit.
Every Which Way
by Gerhard1963
Difficulty ●●●○
Arrows - Counting Cages - Kropki - Jigsaw - X
Combining roman numeral cages with arrows in “I Numeri” gave me the idea to combine arrows with other constraints.
Conifers
by Gerhard1963
Difficulty ●●○○
Thermometers - Modular Lines - Kropki
This puzzle was inspired by natclass setting a puzzle with a reindeer, where the antlers were also branching thermos.
Porcelain
by Gerhard1963
Difficulty ●●●○
Modular Lines - Cages - Kropki
I really like solving puzzles with modular lines, but I don’t really like setting with them. I tried to get out of my comfort zone and made this.
The Swarm
by Gerhard1963
Difficulty ●●○○
Zipper Lines - Cages - X
Since my last zipper line puzzle was a while ago, I decided to make another one.
Butterfly Effect
by Gerhard1963
Difficulty ●●●●
Region Sum Lines - Kropki - Jigsaw
In chaos theory, the butterfly effect is the sensitive dependence on initial conditions in which a small change in one state of a deterministic nonlinear system can result in large differences in a later state.
Waves
by Gerhard1963
Difficulty ●●●○
Nabner Lines - Arrows - Cages - Doublers
I had a lot of fun setting “Abyssus”, my first puzzle with doubler cells, so I made another one.
City Centre
by Gerhard1963
Difficulty ●○○○
Arrows - Skyscrapers
One of my friends gave me a prompt for a puzzle, so I made something completely different.
Circuit Breaker
by Gerhard1963
Difficulty ●●○○
Region Sum Screws - Entropic Lines
I made this puzzle specifically for the 6x6 Region Sum Screw puzzle pack, but I really liked how it turned out so I decided to add it to the collection.
Adrift
by Gerhard1963
Difficulty ●●○○
Kropki - Arrows
The number 3 has always held powerful symbolism. Think about good things coming in 3s, the birth-life-death cycle, the mind-body-soul connection, the 3 acts of a typical story. Wherever the number 3 shows up in your life, it's generally an omen of creativity, communication, optimism, and curiosity!
Confoederatio Helvetica
by Gerhard1963
Difficulty ●○○○
Swiss Whispers - Cages - Kropki
I wanted to move the Swiss whispers into the foreground a bit more, but they just aren’t as good to set with as the other whisper types. They have some great interaction with ratio Kropki dots though!
Irritant
by Gerhard1963
Difficulty ●●●●
Dutch Whispers - Cages - Kropki
Although the telephone system is one of the greatest boons of modern life, it is also, of course, often one of the greatest irritants.
I Numeri
by Gerhard1963
Difficulty ●●○○
Arrows - X/V Pairs - Roman Numeral Cages - Cages
I numeri romani sono scritti usando le lettere I, V, X, L, C, D, M, che corrispondono rispettivamente ai numeri arabi 1, 5, 10, 50, 100, 500, 1000.
Discount
by Gerhard1963
Difficulty ●●○○
Renban Lines - Cages - Kropki
Shields have 50% of their money you would usually spend to buy them converted to money you keep in your pocket instead, or something like that.
Forbidden Idol
by Gerhard1963
Difficulty ●●○○
Lucky Whispers - Thermometers - Cages
Shields have 50% of their value converted to max Health instead.
Abyssus
by Gerhard1963
Difficulty ●●●○
Orbital Whispers - Cages - Kropki - Doublers
Mark gave me the idea to combine the orbital whispers with doubler cells in his solve of “Orbit”, so here it is.
Flawless Opal
by Gerhard1963
Difficulty ●○○○
Crystallisation - Cages
I thought it was cool, that crystallisation is more constraining in smaller sudoku. After thinking about every possible combination for sums of 2-digit numbers in a 6x6 I made this. Don't worry, you won't have to.
Toxic Surge
by Gerhard1963
Difficulty ●●●○
German Whispers - Cages - Jigsaw
One of the puzzles that took a really long time before finally being finalised is this one. It’s been in my drafts forever, but the visual appeal always drew me back to try again. I finally got a version that I’m happy with.
Feathers
by Gerhard1963
Difficulty ●●●○
Thermometers - Kropki
The idea for this puzzle started out with the 4 thermometer “feathers”, and I was quite amazed how few Kropki dots were required to make a unique and logically solvable solution.
Pursuit
by Gerhard1963
Difficulty ●●○○
Dutch Whispers - Cages
This puzzle was inspired by “Missing’s Box”, but this one should be a little bit easier.
In Focus
by Gerhard1963
Difficulty ●●○○
Crystallisation - X/V Pairs
When I first came across the crystallisation constraint, I was quite intrigued by it and really wanted to set with it myself. This is how it turned out.
Out of Focus
by Gerhard1963
Difficulty ●●○○
Zipper Lines - Cages - Kropki
Zipper lines were always really appealing to me, but I’ve had trouble setting with them. This is my first zipper line sudoku, and it focuses more on the interaction between different constraints.
Pipeline
by Gerhard1963
Difficulty ●●○○
Region Sum Screws - Jigsaw
This puzzle was supposed to be “Intro to Lockout III”, but it turned out a bit too spicy for an introductory puzzle, so I turned up the heat a little more and added it to the collection.
Neighbours
by Gerhard1963
Difficulty ●○○○
German Whispers - Dutch Whispers
Formerly “Intro to Whispers II”, this puzzle felt really cool with the small amount of clues and the interaction between German and Dutch whispers, so I kept it as well.
Swiss Treat
by Gerhard1963
Difficulty ●○○○
Swiss Whispers - Jigsaw
This used to be “Intro to Whispers I”, but I really liked to so I decided to keep it in the collection.
Feeling Lucky?
by Gerhard1963
Difficulty ●●●○
Lucky Whispers - Kropki
Completing the colouring puzzle trilogy together with “Orbit” and “Satellite”, this puzzle also features the last whisper line I haven’t used yet.
Turn the Screw
by Gerhard1963
Difficulty ●○○○
Region Sum Screws - V Pairs
This is a new constraint idea I had, basically combining ratio region sum lines and same difference region sum lines into one, more flexible constraint.
Bergentrückung
by Gerhard1963
Difficulty ●●●●
Modular Lines - Cages
A strange light fills the room. Twilight is shining through the barrier. It seems your journey is finally over.
Low-Hanging Fruit
by Gerhard1963
Difficulty ●●○○
German Whispers - Cages - Quads - Jigsaw
Ever since I made "The Tree of Life", I had another puzzle in the plans that followed the same aesthetics on a 9x9 grid. I was never really happy with it back then. Picking up that draft again with a different approach led to this puzzle.
Count to Ten
by Gerhard1963
Difficulty ●○○○
Counting Cages - X Pairs - Kropki
The idea for this constraint originated from Bearly’s first sudoku. I really liked it and decided to set a puzzle of my own with it.
Satellite
by Gerhard1963
Difficulty ●●●●
Nabner Lines - Kropki - Quads - Little Killers
The official sequel to “Orbit”. You can decide for yourself whether the 40 clue is a reference to Sputnik 40 or Explorer 40.
Attract and Repel
by Gerhard1963
Difficulty ●●○○
Arrows - Cages - X/V Pairs
When setting “A Lemur’s Tale”, I had the idea of putting X/V pairs inside an arrow pill just like I did with Kropki dots in said puzzle. I didn’t actually do that though, and came up with this instead.
Theta
by Gerhard1963
Difficulty ●●●○
Region Sum Lines - X/V Pairs - Roman Numeral Cages
Why not accept as an axiom, that there exists some next number - so big - no amount of replacement or power setting on anything smaller could ever get you here. Such a number is called an inaccessible cardinal.
The Flow of Time
by Gerhard1963
Difficulty ●○○○
Region Sum Lines - Little Killers - Kropki - Jigsaw
One day you will look back at all of your yesterdays and realise that you were too concerned with the future to make the most of the present.
Monopoly Rules
by Gerhard1963
Difficulty ●●○○
Skyscrapers - Little Killers - Cages
This puzzle is for my friend Ironwing who got me into variant sudoku by googling “Max pain sudoku”.
A Lemur’s Tale
by Gerhard1963
Difficulty ●●●○
Arrows - Cages - Kropki - Jigsaw
When out foraging, lemurs will hold their tails high in the air where the bright pattern is easily seen. This helps keep the group together!
Winterbliss
by Gerhard1963
Difficulty ●●○○
Lockout Lines - Cages - Kropki
While playing around some more with lockout lines, I came up with this approachable Sudoku.
Companion Cube
by Gerhard1963
Difficulty ●●○○
Lovely Whispers - Cages
This was a triumph, I'm making a note here; "Huge success". It's hard to overstate my satisfaction. Aperture Science: We do what we must, because we can. For the good of all of us, except the ones who are dead.
Semiconductor
by Gerhard1963
Difficulty ●●○○
Modular Lines - Thermometers - Little Killers
The modern understanding of the properties of a semiconductor relies on quantum physics to explain the movement of charge carriers in a crystal lattice.
Solenoid
by Gerhard1963
Difficulty ●●○○
Nabner Lines - Thermometers - Cages
The coil can produce a uniform magnetic field in a volume of space when an electric current is passed through it.
Aleph Null
by Gerhard1963
Difficulty ●●●○
Region Sum Lines - Cages - Kropki
Aleph is the first letter of the Hebrew alphabet, and aleph null is the first, smallest infinity. It's how many natural numbers there are. It's also how many even numbers there are, or how many odd numbers there are.
Quingenti Quinquaginta
by Gerhard1963
Difficulty ●●○○
X/V Pairs - Roman Numeral Cages - Jigsaw
Incorporating larger Roman numeral pairs into a smaller grid made for some fantastic logic that this puzzle is meant to show off.
Escalators
by Gerhard1963
Difficulty ●●○○
Lockout Lines - Cages - Jigsaw
Welcome to the sudoku mall! Despite the big H, we are not actually a hospital. Here you can shop for anything to satisfy your numerical needs on all three floors, and you can even get up to the roof with our escalators. Be careful though, there is killers everywhere.
Fourth Wall
by Gerhard1963
Difficulty ●○○○
Modular Lines - Cages - Kropki - Jigsaw
After experimenting a bit with the modular lines, I found the looping ones quite interesting. Therefore I present to you: the fourth wall. Can you break through it?
Minchen’s Box
by Gerhard1963
Difficulty ●○○○
Arrows - Cages
While solving a bunch of arrow sudoku I came across a lot of arrows with a length of 3, but they never really interacted with each other. Why do I have to do everything myself?
Portal Hopping
by Gerhard1963
Difficulty ●●●●
Renban Lines - Quads - Kropki - Jigsaw
When making "Caught the Puzzle Bug" and "Orbit", I had some ideas for a more difficult concoction, so I combined them into this.
Don’t Look Down
by Gerhard1963
Difficulty ●●●○
Dutch Whispers - Little Killers - V Pairs
Themed to the prototype Bolliger and Mabillard Dive Coaster "Oblivion" at Alton Towers, Stoke-on-Trent, United Kingdom.
Orbit
by Gerhard1963
Difficulty ●●●○
Orbital Whispers - Kropki - X
The vacuum in solar space is around 107 atoms per cubic metre, the vacuum of interstellar space is around 106 atoms per cubic metre, and the vacuum of intergalactic space is around 1 atom per cubic metre. The majority of this matter is hydrogen, but you can find the occasional carbon atom.
Missing’s Box
by Gerhard1963
Difficulty ●●○○
German Whispers - Cages
I made this puzzle for my friend missingusername to solve. It’s supposed to be an introduction to the German whispers constraint. Intentionally over-clued but still not too easy.
Caught the Puzzle Bug
by Gerhard1963
Difficulty ●●○○
Thermometers - Cages - Jigsaw
This puzzle was inspired by some words of encouragement I got from MattDdraig as feedback on my first puzzle:
”Hope you've caught the bug and set many more.”
Little Treat
by Gerhard1963
Difficulty ●○○○
Little Whispers - Little Killers - Jigsaw - X
This one is just a little treat, obviously featuring little killers and… little whispers?
Another Day at the Office
by Gerhard1963
Difficulty ●○○○
Min/Max Cells - Kropki - Jigsaw
I feel like this constraint could be used a bit more often. Made during another day at the office, hence the name.
The Tree of Life
by Gerhard1963
Difficulty ●●○○
Dutch Whispers - Kropki - Jigsaw
The first time I heard about the Dutch whispers constraint, I immediately thought to put it into a 7x7 grid, basically making it play out exactly like a German whispers constraint. And so I did.
Reach for the Sky
by Gerhard1963
Difficulty ●●○○
Arrows - Kropki - Cages
A spiritual successor to “Lightning Strikes over the City”, if you will. With similar constraints, this one is supposed to be a little bit easier and more beginner friendly. No 3-digit-arrow here, unfortunately.
Lightning Strikes over the City
by Gerhard1963
Difficulty ●●●○
Arrows - Skyscrapers - Cages
This is the first puzzle I have set, and I’m happy how this one turned out. The idea was to make a puzzle with a three-digit arrow constraint, and then I just started working from there.