Tagged Questions
Puzzles such as Sudoku or Kakuro, where the final state of a pre-existing grid must be deduced logically through clues placed within and/or around the grid. For puzzles where you are given a list of clues which can be used to compose a grid to solve them logically, use the [logic-grid] tag instead.
8
votes
4answers
557 views
A new 4 x 4 arrow puzzle
Can anyone help me with solving this puzzle:
Draw arrows in all fields around the diagram in a way that every arrow is pointing at least one number inside. The numbers inside the boxes equal the ...
0
votes
1answer
101 views
4
votes
1answer
254 views
Can someone, please, help me to solve this level of the game „Flow Mania”?
It's very hard for me to solve this level. I just can't figure it out!
Rules: Draw a lines to connect like-colored dots. A complete solution will utilize every empty square in the grid.
5
votes
2answers
164 views
Where did my uncle go?
That damned uncle of mine! Running out without telling us has become too commonplace in our house. I did manage to find these two nonograms and a note this time though.
"Fear not nephew! I am ...
5
votes
1answer
269 views
Election Day is upon us!
Some election mayhem! Any puzzlers here or regulars excited?
This is a picross or nonogram, for information about it and how to approach, please go here.
Wanted to make my first short and easy ...
1
vote
2answers
117 views
5 subjects and their marks
The following partially-filled table shows the marks scored by 5 students named A, B, C, D and E in five different subjects, namely P, C, M, B and S. The marks scored by all students in all subjects ...
6
votes
1answer
131 views
Color Star (Semi - Instructionless Sum - Star)
Color Star - a semi-instructionless variation of Sum Star
Known Rules of Sum Star
Fill cells with numbers and shade all remaining cells such that
Each dodecagon contains the numbers 1-9 exactly ...
-4
votes
1answer
133 views
Statue Park (Loop)
Place each of the twelve pentominoes into the grid once, with rotations and reflections allowed. No two pentominoes can overlap or be orthogonally adjacent, and all cells not occupied by the ...
8
votes
4answers
259 views
A “Find the Path” Puzzle
I invented a puzzle, inspired by Simon Tatham's Portable Puzzle Collection. Is there anything that it could improve on? Was it too easy, or was it too hard? Anything I could add? What must I call it?
...
2
votes
1answer
95 views
4x4 square mapping to tick
I cannot see any pattern in how the top left box maps to the top right box.
12
votes
1answer
194 views
Finding the hidden path (new grid puzzle concept?)
I was toying around with grid-based puzzles, and I can up with a format that I'm not sure exists yet, and from my testing leaves only one solution. (If it exists or is broken, please let me know so I ...
4
votes
2answers
89 views
Sto-stone puzzle
Sto-stone is a puzzle made by Nikoli. Here are the rules:
You must color the cells with black with the following rules:
There are rooms enclosed in bold lines. The number on the room shows the ...
17
votes
2answers
318 views
Unusual Kakuro Puzzle
Entry into Fortnightly Topic Challenge #38: Reusing Information 1
This puzzle sort of looks like a kakuro puzzle but there doesn't seem to be any sums. Figure out how this puzzle works and solve the ...
14
votes
1answer
309 views
HAISU with a twist
HAISU is a grid-deduction puzzle designed by this site's very own TheGreatEscaper. To quote them:
HAISU is a portmanteau of three Japanese words - 'hairu', to enter, 'su', number, and 'hausu', an ...
8
votes
1answer
177 views
Unusual Sudoku Puzzle
Find the solution to this Sudoku puzzle. The only problem is there aren't any normal Sudoku clues. Instead there are only some cryptic clues.
What is the solution and how does the puzzle work?
Edit: ...
28
votes
1answer
546 views
Pikurossword, or: Three-in-One
This is an entry into the Fortnightly Topic Challenge #36. [edit: i hope this wasn't too bad for my first puzzle here! let me know how i did :)]
The answer to this puzzle should answer the question: ...
51
votes
3answers
2k views
+500
R.H.P.C. crossword puzzle
This is an entry into the Fortnightly Topic Challenge #36
I got a ticket to the Red Herring Puzzle Club in the middle of the street. There was just a guy giving them out, like some advertisement ...
37
votes
2answers
806 views
Circuit Diagram
An entry to Fortnightly Topic Challenge #35: Restricted Title 1 - based on the following xkcd.
Circuit diagrams can be quite difficult to understand, so here are some documents that will hopefully ...
23
votes
2answers
747 views
Slightly Odd Sudoku
Someone I find very trustworthy continues to insist that this is a valid Sudoku board. It's been a while since I've played, but surely there's a couple of things off here, right?
Alright, so that ...
21
votes
1answer
575 views
Snakes on a Plane! 2
An entry in Fortnightly Topic Challenge #35: Restricted Title 1. Inspired by the title of this xkcd comic.
Snakes ... on a plane ... again ...
This time 2 specimens of a huge unknown type of snakes ...
16
votes
1answer
533 views
Barrel - Part 1
An entry in Fortnightly Topic Challenge #35: Restricted Title 1. Title based on the very first xkcd. Continued in Barrel - Part 2, Barrel - Part 3, Barrel - Part 4, and Barrel - Part 5.
You manage a ...
14
votes
2answers
460 views
Hitchhiker's guide to Scrabble
I was working at My God, it's full of stars! puzzle, when a sudden realisation came into my head: that I have a friend, who is also an astronaut, and that I have an appointment with him! We were ...
27
votes
5answers
2k views
Making Things Difficult
An entry in Fortnightly Topic Challenge #35: Restricted Title 1.
Factoring the Time
Think fast! If you're looking for meaning, these clocks have some for you.
Keyboards are Disgusting
Gunky ...
23
votes
1answer
493 views
Stingray Nebula
An entry in Fortnightly Topic Challenge #35: Restricted Title 1. Inspired by the title of this xkcd comic, but in no way related or affiliated beyond the shared name.
This is the stingray nebula:
...
11
votes
1answer
411 views
An Incomplete Puzzle
I'm sorry to offload some of my work as the puzzle creator on to you solvers. (No, I'm not.) At least there's only one clue missing, right? EDIT: When the puzzle is ready to be solved, there will be ...
11
votes
2answers
387 views
Slitherlink with crossing allowed
In a Slitherlink puzzle, you need to construct a single closed loop connecting points of a grid such that each number clue counts the number of adjacent loop segments. Normally, a Slitherlink puzzle ...
13
votes
1answer
298 views
Hey! Wake Up! Look At This Grid Puzzle!
The grid is divided into rooms, though some are wibbly-wobbly weird-shaped. Hey, aren't these normally supposed to be blocks? What should the title of this puzzle really be?
...
19
votes
1answer
1k views
Chess Connect Puzzle
I made up a new logic puzzle based on the games Numberlink and Chess, and thought it ended up rather interesting. The solution, as usual, is unique.
The starting and ending positions of 7 chess ...
24
votes
2answers
392 views
Popularity Within a Target Audience
This is a metapuzzle with four component puzzles and a final meta.
Creations of CSIRO
The Australian research institute CSIRO is notable for producing inventions such as gene shears, the insect ...
6
votes
0answers
270 views
Grandma's keynote
Found this note which is addressed
To my grandma, in her chest
Since she's passed now, here's my quest..
What tickled her interest?
And who invited her as guest?
19
votes
8answers
1k views
Shortest way from B to A
Spent most of my life out at sea
I've crossed a shark or two – or three
Stayed calm – a skipper brave and tough
Yet one of them did call my bluff
Gorged on my leg with glee
Not yet ...
20
votes
0answers
1k views
One 'double agent' two-step on a waltzing floor
I'm in a jam – cornered I am! –
No clue 'bout where to go
Here's what went down, a pretty gown
Some wine, a French chateau
She whispered underneath her breath
"Come dance with me and ...
8
votes
4answers
476 views
The Knights and the Hounds
(With thanks and congratulations to Lee Leon)
We rejoin our heroes several days after the events of
The Knights' Gift, at the head of a pack of enormous staghounds, 1000 strong. Such a pack ...
32
votes
2answers
3k views
I've been everywhere, man
I am a knight facing a plight
My dearest one of all
Lives in a tower and won’t come out
Unless her name I call
I went to pick her up today
And though my mind was set
To do so, as I ...
6
votes
1answer
155 views
Latin Square Puzzle - Difficult
Follow on puzzle from the introductory Latin square puzzle post.
The rules
It’s a Latin square like sudoku, so there must be the numbers 1-9 exactly once in every row and column.
Notice that each ...
7
votes
1answer
238 views
Latin square puzzle
This is a sudoku-esque puzzle I came up with when trying to solve some harder sudoku.
The rules
It’s a Latin square like sudoku, so there must be the numbers 1-9 exactly once in every row and ...
62
votes
2answers
4k views
Happy Pi-Day! Try to solve this “PiDoku”
To celebrate the Pi-Day (3/14) adequately, a challenging math puzzle must not be missing.
Rules:
Fill in the numbers 1-9 exactly once in every row, column, and region.
On top of that, you need to ...
8
votes
1answer
172 views
Backwards Boggle
I came up with a fun little 1-player puzzle for myself to do when bored. Pick 5-6 words, preferably words that share a good number of letters, and try to create a Boggle board containing all of those ...
6
votes
2answers
250 views
How does one go about creating a new grid-deduction puzzle?
The grid-deduction tag covers puzzles like Sudoku, Kakuro, etc. where the goal is to fill in a grid of numbers [/letters/colours] in a unique way by logical deduction from some predetermined rules and ...
8
votes
1answer
249 views
Partiti : solve this new type of puzzle
These are puzzles similar to Kakuro, which is the creation of a friend of mine whom I met last year:
Rules: Place one or more digits from 1 to 9 in arbitrary order in each empty cell, such that a
...
3
votes
4answers
652 views
Flow Free Favourites
Recently, I have been amusing myself with the interesting puzzles provided by the excellent Flow Free puzzle app.
Since I couldn't find a way to bookmark my favourite puzzles, I took up a habit of ...
19
votes
1answer
1k views
Make numbers 0 - 11 using the digits 2, 0, 1, 8; BUT
... seriously, this is definitely NOT that "kind of puzzle"! ;)
So let me create this puzzle to freshen you up!
It is inspired by a meta question: Yet another 2018 puzzle.
Put the digits 2, 0, 1, ...
4
votes
1answer
105 views
RPS Trinity - Teddy and Her Ribbon
The Rules of RPS Trinity:
You are given a board with its tiles colored either black or white.
Put Rocks (denoted by letter R), Papers (denoted by letter P), and Scissors (denoted by letter S) on ...
27
votes
1answer
815 views
You go wherever you go today
A conclusion to my entries in the Fortnightly Topic Challenge #32: Grid Deduction Hybrids. This metapuzzle incorporates the three previous puzzles in this series:
Desert Irrigation Project
I am an ...
7
votes
1answer
463 views
Two Christmas trees
To each Christmas tree :
Put two $+$, two $-$, and two $×$, to the yellow triangles.
in a row, there must be different operators
(so between $[2,0,1,7]$ all $3$ operators must appear)
$A - B$ means $|...
7
votes
2answers
691 views
Try to design a uniquely solvable masyu
Warning: extreme difficulty
Does there exist a 6x6 masyu puzzle with one black pearl in each row/column (without any white pearls) which is uniquely solvable? What about for 7x7 grids? In fact, what ...
39
votes
1answer
2k views
Japanese Fusion Alphabet Soup
The Dish...
...is an intriguing blend, with a base of classic Western flavours, and a twist of the Orient at its heart.
The Ingredients...
...are diverse and are combined in such an unexpected - ...
6
votes
1answer
368 views
Hashiwokakero Puzzle
Rules:
Connect islands (the circles with numbers) with as many bridges as the number in the island.
Bridges can go only in a straight line horizontally or vertically.
There can be no more than two ...
5
votes
1answer
162 views
Sums to a square number
arrange the numbers 0 to 9 in the circles below, following these rules :
Every row of 3 or 4 circles sums to a square number.
Every diagonal of 3 circles sums to a square number.
Every green circle ...
14
votes
2answers
754 views
25x25 slitherlink puzzle
Basic rules
Form a loop using the dots (so, by joining orthogonally adjacent dots) such that a number N is surrounded by exactly N segments of the loop. Here's a tutorial puzzle and its unique ...
