# Tag Info

Accepted

### Cryptic Clue Guide

(Throughout this post, I will be using cryptic annotations in code blocks. The answer word is made up of all of the capital letters; the punctuation, lowercase ...
• 147k
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### I have forgotten what the puzzle was

I am ashamed this came to me so quickly.
• 2,288
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### Is this chromatic puzzle always solvable?

Yes, it's possible. Start with the various 2x2 squares. Ignoring symmetries of rotation and color swapping, there are 1 combination of 1 color, 3 combinations of 2 colors, and 2 combinations of 3 ...
• 7,508
Accepted

### How to make someone open an origami?

Why not open with a short riddle to start withâ€”perhaps a couplet? For example, on the ears, you could write in suitably mysterious type: Here you are at number one To start, undo what has been ...
• 22k
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### Guide to Codes and Ciphers

This guide aims to explain various ciphers, help you understand how they work, and how to decode them with or without a key. This answer is currently being split into multiple posts to improve ...
• 60.2k

### Creating a Kakuro puzzle with a unique solution

Kakuro is a type of puzzle that is better created using a bottom-up process, in which you specify one or two sums at a time and explore the logical implications of those moves. Take a look at this ...
• 4,629

### How to make someone open an origami?

You could have a small part of the QR code visible on the folded origami. Just small enough that it's not immediately obvious what it is at first.
• 78.2k
Accepted

### Why does generating a Sudoku work in lines, but not in a random pattern?

You will be forced to backtrack more quickly if you proceed line-by-line, because the sudoku constraints are enforced line by line (and column by column and in each sub-square). If you fill in cells ...

### What are some examples of "cheat-proof" trivia questions?

Here are some things you could try: Rebus A rebus is a puzzle device that combines the use of illustrated pictures with individual letters to depict words and/or phrases. You can draw the pictures on ...
• 137k
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### Submitting a puzzle to the NYT

It doesn't seem like this is the proper forum for this sort of question. On the other hand I do have some experience with trying to get things published so I will try to answer the question. Get ...
• 1,521

### Help me to find a small but hard and clever maze

Here's a maze of mine. Start at the top left square. End at the bottom right. RULES: You must stay on a color for exactly THREE squares. You may not do a U-turn (return to the square you just came ...
Accepted

### Is there a puzzle that is only solvable by assuming there is a unique solution?

At least not if the solution space is a countable infinite set, or smaller. In that case, we can compute the finite time person 2) will need to find the solution found by person 1) by enumeration, ...

### Riddles whose answer is "the moon"

Always old, sometimes new. Never sad, sometimes blue. Never empty, sometimes full. Never pushes, always pulls.
• 331
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### Ideas on puzzles for a scientific event

I have no experience making escape rooms, so I can't help too much with the logistics or know if these ideas are practical. Here are some puzzle ideas: Use the science of color perception to hide a ...
• 32.5k

### How does one go about creating a new grid-deduction puzzle?

When constructing a puzzle like this, the important thing to remember is that you should solve the puzzle as you construct it. The general process of construction goes like this: Place clues to make ...
• 147k

### Is this a good question for an IQ test?

I don't think this is a good question for an IQ test. The problem is that there are some strategies to solve this kind of meta-question and who know one of these strategies can answer in seconds. Also,...
• 5,132

### What are some examples of "cheat-proof" trivia questions?

My friends and I did quizzes for about four months, and these are my favourite rounds we did that fit your criteria: Bad film reviews There are aggregated lists of film reviews that are baffling and ...
• 550
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If all of the answers are one word or one short phrase, then the following might be an option. Sort all of the answers to all of the riddles in alphabetical order in the answer section in the back of ...
• 19.4k
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### Unique number from digits 0123456789 with simple property

Here is an example of what you are looking for I'll leave it to the reader to find it for themselves.
• 137k
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### How can I avoid the "Riddle-maker's Dilemma?"

I looked up the 10 highest-voted puzzles here that are tagged [riddle]. Warning: slight spoilers for those puzzles lie below. A short, brutal riddle has a one-of-a-kind trick. It also makes use of ...
• 120k

### Is this a good question for an IQ test?

Bad question. I would imagine a person who is familiar with the idea of paradoxes and self-referentiality would immediately go "aha, I get what this is" and answer D. Another person may have ...
• 289
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### Is this a good question for an IQ test?

I disagree with most of the other answers - I think it is a better question than most actual IQ test questions. The point is that if you haven't seen something like this before, then whether you're ...
• 3,051
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### Creating a Sudoku where all clue numbers are orthogonally connected to the edges of the puzzle

Not necessarily a definitive answer (in fact there's almost certainly a better way) and certainly ignores your final question ("is there a formula for making them?"), but I've made a few rule-...
• 37.3k
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### Can experienced players tell when a Sudoku was randomly generated? Or if it's a shuffled version?

Can you tell when a puzzle has been computer-generated? Yes, absolutely. Handmade puzzles can very easily be distinguished from computer generated ones by their "solve paths", and often ...
• 147k
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### Wordplay tricks for "Schrödinger" cryptic clues

It takes a lot of fiddling to get SchroÌˆdinger clues to work. A lot of the strategies for making them are similar to those you might use for making &lits, or getting good surfaces -- but here, you ...
• 147k

### Is this a good question for an IQ test?

Is this a good question? No it isn't. The reason is that due to the broken way self-reference is worked into it, it has no answer. Here is why. Firstly, the answer to the question is a value from the ...
• 436
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### Constructing interesting "Don't Know - Don't Know - Now I know!" type puzzles

The professor says: I have written on Alice's paper an even ordinal and on Bob's paper an odd ordinal. Who has the lesser ordinal? Then, after $\lambda$ iterations of the game, it is common ...
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### What's a good way to introduce someone to puzzle-making?

There are a few things I do when creating a puzzle, and a few of my own rules I have created through experience, which I shall list below... 1. Planning is important Puzzlemaking takes time and ...
• 60.2k

### What's a good way to introduce someone to puzzle-making?

I'm not sure how representative it is of the "right" way, or even a common way, but here's the rough workflow my puzzles go through (sorry in advance for the wordiness). 1. Play to your strengths ...
• 37.3k