Questions tagged [reverse-puzzling]
This tag is for questions where the answerer must identify a puzzle type based on deliberately limited information about its nature, such as notes made in the course of solving it. For questions where the asker genuinely needs to know the puzzle type, use the [puzzle-identification] tag instead.
76
questions
15
votes
1
answer
469
views
Seven similar 7x7 (pen-and-paper) logic puzzles
Oh no! I've just finished drafting some 7x7 logic puzzles, but I accidentally dropped all of them on the floor, and now they're all mixed up!
To make matters worse, I haven't gotten around to ...
- 968
13
votes
1
answer
488
views
What's the puzzle to this answer?
This is the answer:
wgc
wc g
wc g
w gc
wg c
g wc
g wc
wgc
But what is the puzzle?
This requires some knowledge, but I'm pretty sure that most people on this site ...
- 394
27
votes
1
answer
2k
views
This new puzzle type needs a name {7}
This puzzle is part of the Monthly Topic Challenge #5: On-and-onograms - and also extends the 'This new puzzle type needs a name' series...
I believe I have invented a new type of puzzle...
What is ...
- 134k
11
votes
1
answer
513
views
This new puzzle type needs a name {OVERLAPPED EDITION}
This is my contribution to the 'This new puzzle type needs a name' series, started by @Stiv.
I believe I have invented a new type of puzzle...
What is its name?
Penpa+ link
A little advice..
Even ...
- 5,674
21
votes
1
answer
3k
views
Another pseudo-IQ question
This puzzle is part of the Monthly Topic Challenge #2: IQ Puzzle Parody
People keep asking me if there's anything between me and my good friend Ingrid Deduction... Well, it's... complicated... We go ...
- 134k
4
votes
2
answers
262
views
The case of a piece that could go missing
What piece of hardware was after all unnecessary? And how?
These diagrams, though somewhat schematic, are meant to directly
represent everything pertinent.
Nothing has been omitted or added to ...
- 21.8k
5
votes
1
answer
220
views
Reverse Puzzling 8 - Another Chess One with an Allumwandlung
[Continued thematically from here]
George grinned at the sight of the chess board. "What have we here?"
"This was the first two-mover to show Allumwandlung using only this many pieces,&...
- 22.8k
6
votes
1
answer
286
views
U and Me (this is not a dating puzzle)
U and me together!
Me after: double!
U are three times greater than me!
U too will be removed!
What is the puzzle that is similar to the sentences given above?
Hint 1:
- 1,378
4
votes
1
answer
156
views
Copy that solution
This copy machine program prints
the solution to a well-known puzzle.
Explanation of the syntax will follow.
What solution will be printed for which
well-known puzzle?
EXECUTION CODE
.--> ...
- 21.8k
6
votes
2
answers
8k
views
Math puzzle: I know the answer, what is the equation? Use all digits 1-9
A few years ago, my child brought a puzzle home from their 6th-grade math teacher. The solution was to use all the numbers $1−9$ only once and make the equation true. Using a spreadsheet, I was able ...
- 63
19
votes
1
answer
750
views
Spot that puzzle
This diagram solves an occasionally seen member
of a well-known family of optimization puzzles.
Spots ● generalize a component
that is represented variously in different statements of these puzzles.
...
- 21.8k
12
votes
1
answer
456
views
What are the rules to my Sudoku?
I made a Sudoku variant puzzle pictured here:
Your puzzle is to figure out what the rules for the puzzle I created are.
The puzzle has a single unique solution so if your rule-set allows more than ...
- 1,293
2
votes
1
answer
228
views
Reverse Puzzling 7: I FED the CIRcus some DAM GAS
[Continued thematically from here (maybe - in all the excitement, I kinda lost count of it myself)]
I handed George the very famous puzzle and asked him if he knew how to solve it.
"Oh, yes, of ...
- 22.8k
11
votes
1
answer
777
views
The unsolvable cryptic clue
My friend was reading a newspaper and I caught a glimpse of a rather mystifying cryptic clue on one of the pages. I've been unable to solve it ever since and it's driving me crazy! Here's my "...
- 76.2k
-1
votes
1
answer
74
views
Rows has more than Columns
Friend: Hey! want to see what I'm solving?
Me: Yeah sure.
Friend: showing an image
Me: Oh, come on, why do I wanna do reverse puzzling again!?
Friend: Oh, just put it on a Q and A website then.
This ...
- 1,378
17
votes
1
answer
568
views
Chain Puzzle: Tabletop Games #08 - Targui, or not Targui
This is the eighth Chain Puzzle in the Tabletop Games series, in which all puzzles are themed around board games, card games, tile games, and the like. The answer to this puzzle is a thematic word or ...
- 134k
31
votes
1
answer
645
views
Re-Venn-ge of the Connecting Wall
An entry in Fortnightly Topic Challenge #42: Wordless Connecting Walls
Today I created a connect-wall puzzle (for which a solver would need to partition 16 items into 4 connected groups of 4, and ...
- 134k
1
vote
0
answers
443
views
Not a sudoku, but still fun?
Context:
I was trying to solve some of the puzzles on this site, when it occurred to me to make a puzzle variant myself.
I immediately could construct one with my additional rule. Making an ...
- 8,010
43
votes
1
answer
2k
views
This new puzzle type needs a name {EXTREME EDITION}
A companion puzzle to the 'This new puzzle type needs a name' series, and inspired in part by @JeremyDover's answer to a recent question.
Usually, puzzles in this series comprise a mash-up of two ...
- 134k
12
votes
2
answers
545
views
What was Matt's matchstick puzzle?
Something rather funny happened at our Puzzlers' meet the other day.
"Oh hey buddy, can you hand me exactly 18 matchsticks? I wanna show you this new matchstick puzzle I came up with." Matt ...
- 18.6k
7
votes
1
answer
407
views
Reverse puzzling 6
(Continuing thematically from here and here)
"Well, George, I've got a tricky one for you today. Lots of people struggle to get into it. They think it's about real human behavior but it's set up for ...
- 22.8k
11
votes
1
answer
564
views
Solution without words
Here comes a series of snapshots in the life of a worksheet
that might come into play when solving a variation of
a fairly well-known numerical logic puzzle.
Parameters of the progenitor puzzle have ...
- 21.8k
7
votes
1
answer
184
views
A Grid with some Green Cells
So a friend wanted me to try out the reverse-puzzling riddle he created. It consisted of a 4x4 grid with a digit in each cell and a single closed loop drawn along the edges of its cells. Also some of ...
- 683
25
votes
1
answer
2k
views
This new puzzle type needs a name {6}
I believe I have invented** a new type of puzzle...
What is its name?
Begin by solving the Fillomino puzzle:
Rules of Fillomino (adapted from Nikoli)
Fill in all empty cells with numbers under the ...
- 134k
18
votes
2
answers
895
views
This new puzzle type needs a name {5}
I believe I have invented a new type of puzzle...
What is its name?
Colour-blind-friendly version available here.
Begin by solving the 9x9 sudoku; each of the 9 symbols ...
- 134k
12
votes
1
answer
1k
views
This new puzzle type needs a name {4}
I believe I have invented a new type of puzzle...
What is its name?
Begin by solving the 16x16 sudoku; each of the digits 1-16 must appear exactly once in each row, column and thick-bordered 4x4 ...
- 134k
28
votes
1
answer
2k
views
This new puzzle type needs a name {3}
I believe I have invented** a new type of puzzle...
What is its name?
** Well, 'adapted' an existing one, really...
Colour-blind-friendly version available here. Those without colour-blindness ...
- 134k
26
votes
4
answers
2k
views
Another new puzzle type needs a name
For an example of how this type of puzzle works, see here...
I believe I have invented another new type of puzzle...
What is its name?
Colour-blind-friendly version available here.
Begin by ...
- 134k
105
votes
2
answers
7k
views
This new puzzle type needs a name
I believe I have invented a new type of puzzle...
What is its name?
Colour-blind-friendly version available here.
Begin by solving the 16x16 sudoku; each of the digits 1-16 must appear exactly ...
- 134k
7
votes
1
answer
769
views
My friend is being a hypocrite
So I was having an argument with a friend and I know I'm right, but she just won't admit it and it's getting really irritating. She thinks this thing goes one way when it clearly actually goes down!
...
- 1,575
25
votes
2
answers
3k
views
Reversed Sudoku
Sudoku from Sudoku Solutions.
Here's a Sudoku grid with all the obvious candidates removed. Your task is to re-supply the givens.
- 35.6k
14
votes
6
answers
478
views
Useful Aide memoire
“Well, that's all great but how do you remember it?” George asked.
“Easy,” I replied pointing at a nearby board. “Just remember these words: Clue, Fox, Rain, Basket, New, Haze and Quiz, Jades, Moved, ...
- 22.8k
10
votes
2
answers
481
views
Reverse Puzzling - Curious Chess
George rubbed his hands together. "What have you got for me today?" he asked.
I showed him the pieces set up on the chess board and told him the stipulation.
"That's a very strange one." He said. "...
- 22.8k
15
votes
1
answer
451
views
Reverse Puzzling 5
(Continued thematically from here)
"George, you know this puzzle?" I asked.
"Oh yes, of course. And I much prefer this version to the French one."
"Yes, it's much better." I agreed. "So you can ...
- 22.8k
6
votes
2
answers
530
views
I have a puzzle and a solution... it's the method I'm after
The cipher message is:
J B A Z R X K Z N
T W K O Y E Z
The answer is:
T O N G L A N D
B R I D G E
How did I (or more accurately my father) arrive at the answer?
- 61
16
votes
2
answers
906
views
Procedurally generated riddles
Last morning, my AI friend wrote me a letter.
hello thomas. how are you? i am good. you said you like riddles so I made some riddles for you. please enjoy.
After some time, though I enjoyed the ...
- 6,802
84
votes
2
answers
5k
views
My God, it's full of stars!
An entry in Fortnightly Topic Challenge #32: Grid Deduction Hybrids
My dear friend, unknown to us, may have relocated again. He sent me imagery and constellation maps indicating that a distant red ...
- 4,599
45
votes
2
answers
2k
views
I am an island (ysaujdiolkiun)
An entry in Fortnightly Topic Challenge #32: Grid Deduction Hybrids
I received an envelope containing two drawings and no return address. I would recognize that handwriting anywhere - my dear friend ...
- 4,599
52
votes
4
answers
2k
views
Desert Irrigation Project
An entry in Fortnightly Topic Challenge #32: Grid Deduction Hybrids
My dear friend researches and designs canal irrigation systems in a remote desert. He's been missing for two weeks. Members of ...
- 4,599
15
votes
2
answers
830
views
Trapezoids Compound Hidden Puzzle
UPDATE
To refute Sconibulus's answer, I drafted a second puzzle with identical rules.
7 months ago, I released a collection of variations of an original puzzle called Trapezoids, but never mentioned ...
- 4,599
7
votes
3
answers
757
views
Ambiguous Grids
After six to eight weeks of waiting, your Shmikoli™ Ambiguous Grid Deduction Puzzle Set has finally arrived!
You tear into the box only to discover that the instructions are missing. You shouldn't ...
- 9,166
19
votes
2
answers
1k
views
Three for the price of one
While browsing through your local puzzle store, you see something you can't resist: a box which promises two grid deduction puzzles for the price of one!
The vendor explains that the box contains a ...
- 9,166
6
votes
1
answer
303
views
So why do they keep asking?
Settle down.
We are all understandably
upset — once again — but
this meeting is called to order.
&...
- 21.8k
5
votes
2
answers
583
views
The trunk of trivial trials
This puzzle is a knockoff of humn's The case of the world's easiest puzzles. (humn has encouraged spinoffs in a comment.)
Hey be careful with that case! Even the slightest nudge, jostle, or jog, and ...
- 9,166
11
votes
5
answers
943
views
My roommate is back add it!
My roommate's computer desk has a paper on it with these 3 weird grids and drawings. I know that he is trying to learn to write computer code and he likes making old video games as a way to learn. I'...
- 369
11
votes
4
answers
1k
views
A line in Connect Four
When I was young, I was playing with a friend. Of course, the topic soon turned to mathematics (as it always does), and we got into an argument over something. We went on for some time, then he got ...
- 21.9k
11
votes
3
answers
745
views
Steganographic Maze of Ciphers, Riddles and Rhyme!
Go with the flow!!!
INSTRUCTIONS
Done with my time on this planet, I left you with my creation.
I'm hidden in two ways below, one puzzled, while the other is a direct mention.
I know you will ...
- 18.9k
6
votes
2
answers
532
views
Cheating your Boss is not easy
I stole the thought reading device from Ankoganit. I have already understood how to fit it into people. And now, I have fitted it in the neck of my Boss. Now, I get to know what is going in his silly ...
- 15.1k
29
votes
1
answer
2k
views
Reverse puzzling. What game is this?
I saw my friend working on making a computer game version of an old game (not traditionally a computer game) and his notepad has these strange series of numbers. What game is he working on?
...
- 369
5
votes
1
answer
247
views
Jim is trying to prove he has solved the puzzle
This is an entry for the 16th Fortnightly Challenge.
Jim : Bob, I have solved the puzzle !!
Bob : I do not believe you, show me !
Jim : No, you have to solve it yourself.
After some discussion ...
- 17.8k