Questions tagged [open-ended]

NOTE: This tag is currently being debated on Meta. Questions asked under this tag may not fall under the scope of the site. Please be mindful of that when asking a question. Used when the tagged puzzle is open ended to all solvers and could be "bested" at any point, if a given solver has a better solution that fulfills the askers requirements.

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9
votes
2answers
641 views

MathJax exposed

  WARNING   $ \color{red}{\boxed{\boxed{ \sf ~~{ \large N \, S \, F \, P \rlap{\small P\&CG~SE} }~~~ \huge\raise-.2ex\...
-1
votes
2answers
2k views

Longest alphabetical sentence [closed]

What is the longest alphabetized (by first letter) sentence you can construct? For example, consider these "words": be, a, fish, elephant, crashed, dead If this were a sentence, it would be valid:...
25
votes
13answers
4k views

A rhopalic sentence of at-least 5 words, beginning with as long word as possible

Rhopalic sentences are sentences which have words whose length is one more than the previous word. eg: I do not hunt birds. I do not know where family doctors acquired illegibly perplexing ...
6
votes
4answers
399 views

How do you transport 42 cars?

You're a soldier in the dictator's army. The dictator is very impressed with your incredible abilities. He asks you this question: There are 42 cars in this parking lot over there. How do you ...
8
votes
3answers
2k views

Infinite choice question

The assertions in the following infinite list are all the same, true or false.       $~\vdots$   T$~~$F $~~$ I have a black Model T.   T$~~$F $~~$ I have a black ...
5
votes
4answers
956 views

Word ladder island (formerly dead-end)

Following on from CodeNewbie's question "From Puzzling to Stack Exchange", I thought I would set a problem of my own using the same rules: Rules: In any move, you can either replace a letter, add a ...
5
votes
4answers
2k views

pairs of anagrams where the two words sound and look very different

This is a question about pairs of anagrams capable of flavouring puzzles as memorable and surprising because the two words are so different. One of my favourite such pairs is chesty and scythe. These ...
6
votes
2answers
847 views

No ordinary magic square part 2. How many solutions are there?

Same rules as last time except this time count or calculate the number of possible solutions! No ordinary magic square Place 1-9 in the squares below in a manner such that none of the columns, rows ...
-3
votes
1answer
2k views

longest sentence using only one word and variants [closed]

This is an open ended puzzle of wordplay. Here's an example of acceptable words: reed, read, read, red, etc. They are linked by either different spellings of the same pronunciation (reed and read), ...
4
votes
1answer
274 views

Practical Strategy to beat the casino over the long haul [duplicate]

This is another iteration of beat the casino. That question did not require a practical, implementable strategy, whereas this one does. The rules are the same and I list them below. However, the OP ...
0
votes
2answers
200 views

What is the longest word that can be made using touching characters on a keyboard? [duplicate]

If the keys are touching, you can make them. For example, dew.
13
votes
14answers
4k views

Shortest sentence with two auto-antonyms

You have to use two words that are each their own opposite (auto-antonyms, contronyms, contranyms or whatever you want to call it) in the same sentence. This means that each of the two words in used ...
1
vote
7answers
2k views

Change a letter, add a letter

This is based on a word game that as far as I know was invented by my friend's Dad. The goal is to make as long a word as you can, starting from any three-letter word, using the following rule: You ...
7
votes
5answers
1k views

Turn 16 into 25. You have 4 magic spells. Can you do it?

You have been given the number 16. You also have 4 magic spells. You have to use the spells to turn 16 into 25. Each spell changed your number a specific way, but the objective is never altered, you ...
7
votes
3answers
581 views

Magic-the-Gathering Challenge: Cheapest Legacy Turn 1 kill

Your Goal: Win the game turn 1 with you beginning the game (so not on the draw) using the cheapest price total of cards used. Rules: Use the "Price Trend" price from http://www.magiccardmarket.eu ...
3
votes
1answer
308 views

Equal Chess Control

Is it possible to setup a chess board where every square on the board is only controlled once. Occupying a square does not mean controlling it. If it is possible, with how little pieces? Piece Cost: ...
-6
votes
1answer
268 views

The longest paragraph competition [closed]

You must write a paragraph using valid English words (either British or American, but not both in the same answer) and proper grammar. No proper nouns or colloquial/slang words allowed. Quotation ...
13
votes
3answers
652 views

The Longest -1 Word

What is the longest -1 word (or the word worth most in Scrabble for words with the same amount of letters(which is just the addition of all the letter values of the original 'word', no constraints)), ...
7
votes
5answers
683 views

Transatlantic road paint

In the US, text painted on roads reads bottom to top: AHEAD STOP In the UK, it reads like normal text: NO ENTRY ...
5
votes
7answers
598 views

The ngrams sentence challenge

When you enter a search into google ngrams, the graph shows the words/strings down the right hand side. What if you could pick search terms such that reading the right hand side of the graph, from top ...
-1
votes
2answers
270 views

The Hallway and Tele Doors ~ Prolong the Inevitable

Sequel to: The Hallway and Tele Doors Note: You need not have to read the above to understand this puzzle, however this puzzle does spoil the above one. The tele door system: Each pair of doors, ...
-1
votes
1answer
313 views

Make the question less broad [closed]

Recently a question of mine was put on hold for being too broad: Longest $Scramble Sentence$? Or if you prefer have this in the one window: Before we begin, allow me to define what I call a Scramble ...
4
votes
3answers
617 views

Largest Complete Scrabble Block

Let's define a Complete Scrabble Block as an arrangement of Scrabble tiles such that: The four edges are all flat. All words are words. There is an order in which the tiles can be played in a game of ...
-10
votes
2answers
510 views

Longest $Scramble Sentence$? [closed]

Before we begin, allow me to define what I call a Scramble Sentence, A Scramble Sentence is a grammatically correct sentence, where at least 1 other permutation, of the letters in the sentence, ...
1
vote
0answers
1k views

Woody words, tinny words [closed]

Note: There are some rude words in this question. There's an implicit puzzle in posed in this classic Monty Python sketch (you can also ready the script online). Various words are described as ...
3
votes
5answers
496 views

OE Challenge - Solve faster than fast! Help Steve get out of hell [closed]

Steve is having a rather bad day. Steve has died, and because Steve had a propensity for driving slow in the fast lane, Steve goes to hell. As soon as Steve gets to hell, Satan, Hitler, and ...
10
votes
3answers
1k views

Chess Game of Life

A bishop and a rook, of opposing colors, start on opposite corners on the same side of a chessboard, oriented as in the following picture: They then proceed to play a game of cat-and-mouse. Rules ...
2
votes
4answers
466 views

From Puzzle to Riddle to Solution

Your goal is to create a word ladder that goes from the word "puzzle" to the word "riddle" and then to the word "solution". In that order! That is, if it's possible, if not you better show me why not!...
2
votes
5answers
6k views

Longest Homophone Sentence [closed]

Open Challenge: What is the longest complete sentence you can make wherein every word is a homophone? A simple example would be: I threw you. (eye through yew) Ground Rules (more may be added ...
-5
votes
3answers
818 views

A quickie for the cryptic crossword enthusiasts: Here is the clue. / Cut cut! / What crazy, bloodthirsty creature remains? (5 letters)

Here is the clue. Cut cut! What crazy, bloodthirsty creature remains? (5 letters) EDIT I added the word 'crazy'. Apologies that I missed this out before. Please use typical cryptic ...
13
votes
3answers
751 views

100 Dwarves vs. the Evil Elf

The following is an extension of 100 Dwarves and a tiny room. The text of this puzzles spoils that one in a minor way, so go read that excellent puzzle first! An evil elf puts $100$ dwarves in a ...
11
votes
7answers
3k views

Longest arithmetic expression where the answer is equal to the number of letters

You can use any mathematical operations represented by English words. These English words must be found in a commonly used dictionary. Spaces are neither letters nor words. You can not use the same ...
15
votes
8answers
6k views

Longest Word With *Only* Repeating Character Pairs

Inspired by and Opposite of: Longest Word without repeating character-pairs The challenge is to find an English word in which every character pair appears at least twice. ("Word" does not include ...
6
votes
2answers
235 views

Anagrammatical substrings

Inspired by this challenge, I have a similar, with stricter rules. Find a word that can be decomposed into several other words (more than one). Those words are not allowed to be proper substrings of ...
3
votes
6answers
453 views

Longest Sentence Where Every Character Pair Repeats $n$ times

BACKGROUND This is essentially a combination of two puzzles: Longest *Sentence* With Only Repeating Character Pairs (which has been shown to be infinite) Longest sentence with each letter repeated n ...
1
vote
5answers
2k views

Longest *Sentence* With Only Repeating Character Pairs

BACKGROUND I asked a question about words: Longest Word With *Only* Repeating Character Pairs The goal was to find a word where every character pair was repeated at least once. This was vulnerable to ...
5
votes
8answers
3k views

Longest Word without repeating character-pairs

What's the longest English word that doesn't contain the same two letters in a row more than once? Good word : too contains to ...
13
votes
6answers
3k views

Can you solve those laser puzzles? (puzzles created by the community) [closed]

So, I was bored and I made a small game for this site! In this game the user who solves the previous puzzle gets to create the next one and they will always be more complex. Website link and string ...
7
votes
2answers
281 views

Renouned Set Theory

Consider the following ten statements: $A$ do not have $B$. Some $C$ are $D$, but no $E$ are $D$. $F$ that are $A$ can still be $G$ if they have $H$. No $C$ that do not have $G$ can be both $H$ and $...
-3
votes
6answers
334 views

Will both workers count the same number? [closed]

Original problem Lets assume that we hire two persons to count passers-by for an hour. One is told to stand still at one spot on the sidewalk. The other one is told to walk 20 meters up and down the ...
43
votes
9answers
22k views

The Longest Word Made from Chemical Symbols [closed]

So, as you probably know, each and every element in the Periodic Table has its own unique chemical symbol, which is either one, two, or three letters long. For instance, Oxygen is represented as O and ...
18
votes
26answers
12k views

Building a 2 mile runway on a 1x1 mile island [closed]

You have a 1-mile long x 1-mile wide island. When taking off from a flat runway, a plane requires a runway of minimum length 2 ...
11
votes
1answer
545 views

Bouncing Robots: Graphical Puzzle [closed]

Robots are indicated by the arrowhead shapes and the labels "r", "y", "b", "g". The label obviously corresponds to their color. The aim of the puzzle is to pick up the shapes and put them down in the ...
5
votes
2answers
2k views

English words with the most consonants, all voiced or all unvoiced

What English words containing only voiced or only unvoiced consonants contain the most? Count each consonant as many times as it appears. Note that this is a question about the sounds (phonemes) ...
2
votes
1answer
305 views

Memory Enhancement Through Numeric Imagery - What is the longest or best coherent sentence/paragraph/story you can make?

The guy who recited 20k numbers of pi by memory alone used a system where he converted numbers into consonants and then grouped words or sentences together to remember a huge amount of numbers. Here'...
1
vote
3answers
364 views

Object Representation [closed]

Background It isn't a common art style, but it is still done: using letters for form in pictures. Sometimes, people create art using only letters. Now, let us choose a word, i.e. Cool. 'Cool' can be ...
-4
votes
2answers
4k views

Maze Generation Algorithm [closed]

You must design an algorithm for a 16x17 rectangle grid. Each "cell" is either a wall or an opening. This algorithm must achieve a maze without long hallways in 1 general direction, and must have dead ...
-6
votes
3answers
438 views

Shortest sentence with 2 sets of synonyms?

Current Best: 13 characters This time I'm asking you guys to determine the shortest possible grammatically correct english sentence that includes 2 pairs of synonyms (different words that mean the ...
1
vote
4answers
665 views

Find the longest arithmetic expression with value equal to number of letters in its english representation

The expression twenty minus five has 15 letters (we ignore spaces) and also has the arithmetic value of 15. You can use standard math constants, operators and ...
22
votes
2answers
3k views

Open-ended challenge: Find the longest morsagram word pair

The idea for this challenge stems from this posting on ComputerScience (beta). It is established (see above link), that Morse-code requires the 'space' between individual character to be uniquely ...