# Questions tagged [open-ended]

OPEN-ENDED PUZZLES ARE NO LONGER IN SCOPE. Used when no answer can be guaranteed to be the last, best one. If a puzzle instead has a provably optimal solution, tag with [optimization].

93 questions
Filter by
Sorted by
Tagged with
358 views

### She Lia Squared: Our daughter asked, “How many words can it make?”

Our daughter recently conned my wife and I into purchasing interlocking foam squares for her bedroom floor. On each square is a different letter of the alphabet. To cover her entire floor we had to ...
4k views

### Find the longest string of words such that the (4 letter) end of one word is the start of the next [closed]

Here is an open-ended challenge. Find the longest series of English words such that the final four letters of word $n$ are the same as the first four letters of word $n+1$. Example (3 words) ...
1 vote
521 views

### Longest "Cycle" word chain [closed]

Linked to This word chain will come back to me. That puzzle got some very creative answers and comments. Although the puzzle itself took some work, I found it very interesting. So here is a more ...
3k views

### Pairs of anagrams where the two words sound and look very different [closed]

This is a question about pairs of anagrams capable of flavoring puzzles as memorable and surprising because the two words are so different. One of my favorite such pairs is chesty and scythe. These ...
38k views

### Find words with the highest proportion of a single letter [closed]

Thanks to JoeZ, pacoverflow, isaacg, Sp3000, Novarg, Ram, h34, and all those who contributed answers that have since been beaten. I've accepted JoeZ's answer since he has the most mentions on the list ...
15k views

### Making π from 1 2 3 4 5 6 7 8 9 [closed]

There have been two other questions here and here that are similar to this one, but this changes the rules up a little. Your job is to approximate $\pi$ using the sequence of digits (in order): 1 2 3 ...
1k views

### Four fours to get $\pi$ [closed]

Four fours is a famous puzzle (made trivial with logarithms). For this puzzle, we take inspiration from Glen O's challenge from a few years back. The rules here are slightly different, but the goal is ...
1k views

### Knight on the keyboard [closed]

You are given a QWERTY keyboard, and are allowed to choose where you wish to start. You are only able type in the same way a knight is able to move on a chessboard (but in this case, on the keyboard). ...
353 views

What is the shortest string of letters that yields no results in a Google search? When answering, please use the NATO alphabet in order to prevent the string from becoming a search result. Scoring: ...
826 views

### Forced selfmate in n-moves [closed]

I assume most people on PSE know a bit of chess With white to move, this is checkmate (1. Qb7#): That's boring. Let's try something more interesting. With black to move, black can FORCE white to ...
15k views

### The most words that can be made by successively adding one letter to the original word? [closed]

What is the largest number of words that can be made by just adding one letter to the original word, where each iteration is a meaningful word? E.g. ...
6k views

### Longest sentence with each letter repeated n times [closed]

Inspiration: This question was inspired by Word sets with no repeating letters Rules: Sentences can be of any length. Every letter used in this sentence, must be used n times. n can be any number. ...
1k views

### From jafe to El-Guest [closed]

Largely inspired by From Puzzling to StackExchange by CodeNewbie From jafe to El-Guest jafe > cafe > cate > cete > cet > get > gest > egest > e gest > e guest > el guest Rules: In any move, you ...
10k views

### Growing anagrams - What is the longest possible list forming a sentence? [closed]

This is a challenge for word-puzzle lovers. It might be a bit more of a game than a puzzle, but I think it is not limitless in it's answers, so a final answer could be found (eventually). What is the ...
8k views

### Longest sentence where all words are anagrams of each other [closed]

Won, now own. Rules: A “word” is an entry on dictionary.com. A “sentence” is any text that is grammatically correct, has a complete meaning in the English language, starts with a capital letter and ...
1k views

477 views

### Find the most MissSpellable word, but in a good way? [closed]

Most MissSpellable Word - English? I'm not a native English speaker but I tend to keep an eye on my spelling and grammar. I recently misspelled "throw" as "throe", which, to my surprise, was a real ...
811 views

### Challenge : Create a star shaped crosswords (Smaller numbers of distinct letters wins !) [closed]

Rules: Create a star-shaped crossword using 6 letters English words. Clues for the crossword is not needed. Use common English words. Direction for diagonals is TOP to DOWN. Direction for Horizontal ...
7k views

### Playing "Guess a Number" with myself

I want to play a game where one person thinks of a number and the other tries to guess it, but I want to play this game by myself. The puzzle is to come up with a way to play this game. Rules (have ...
12k views

### 3:3! It's a football score! [closed]

Given to me, by a friend: How would you make 20, using two threes? You may use any basic operation. And others, such as square roots (the symbol), factorials, etc. Any operation is allowed. Just ...
283 views

### Any twelve year-old can answer this question [closed]

Come up with a question between five and ten words long with an answer that contains more than three times as many unique words as the question, does not contain any of the question words, and does ...
599 views

### MathJax: ones and zeros

Do or do not, there is no try.     — Yoda Here is another MathJax puzzle. The Starring MathJax puzzle involved handling numbers in MathJax, even though there are no count registers or ...