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Results tagged with no-computers
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user 86115
A puzzle designed to be solved without using calculators, online decoders, or computer programming. Using a computer to type and post the answer is allowed; the spirit of this tag is to make people solve the puzzle on their own.
3
votes
1
answer
353
views
Place numbers 1 through 9 in boxes (☐☐×☐=☐☐+☐☐=☐☐)
So recently I was scrolling through Youtube when I came across this video from MindYourDecisions that was about solving a legendary math puzzle.
The puzzle:
Place the numbers 1 through 9 in the follo …
- 2,423
3
votes
1
answer
220
views
Minimally clued 4x5 Hidato (4 clues)
Puzzle attribution: Me :)
Background
So as you might or might not know, I have been studying the minimum number of clues needed to force a unique solution in Hidato for variously sized boards. I rec …
- 2,423
1
vote
1
answer
101
views
Is my solution to a mathematics puzzle I created the most efficient solution there is to it?
Here's a puzzle of mine that I created around 2 hours ago:
Let $f(x):=x^2$ and $g(x):=x-4$. Starting with x=0, what is the least amount of times you need to apply the functions $f$ and $g$ so that at …
- 2,423
0
votes
2
answers
21
views
Minimum function optimization puzzle #2
Previous puzzle
Take this puzzle of mine I created about an hour ago
Take two functions, $f(x):=x^2$ and $g(x):=x-3$. Starting from $x=0$ and applying these functions as needed, what is the minimum a …
- 2,423
1
vote
1
answer
67
views
A Hidato, but with no given numbers?
I can be a bit evil sometimes. Today, I am going to give you a Hidato with no numbers! It gets worse: This puzzle is on a Mobius Strip Y[1] However, I will give hints as to what the numbers are, so th …
- 2,423
0
votes
2
answers
94
views
Minimum function optimization puzzle #3: 3 functions
Previous puzzle
Take this puzzle of mine I created recently:
Let $f(x)=x+1$, $g(x)=x^2-1$, $h(x)=2x-4$. Starting with $x=0$ and applying these functions as needed, what is the minimum amount of times …
- 2,423
0
votes
1
answer
37
views
Minimum function optimization puzzle #4: Using negative numbers?
Previous puzzle
Take this puzzle of mine that I created around a week ago:
Take these 3 functions: $f(x):=x+8,g(x):=x^2-3,h(x):=\sqrt x$
Starting from $x=0$,$$\color{black}{\text{How many times will …
- 2,423
-2
votes
1
answer
226
views
First five digits of a googol factorial
Based off of: MacPOW 1134
Without using a calculator/computer, can you determine the first five digits of $10^{100}!$ (a googol factorial)?
I came up with this when trying to solve the question this i …
- 2,423
5
votes
1
answer
91
views
Current record for minimally clued 7x7 Hidato (16 clues)
Background
Back in March, I posted this question on the Puzzling Stack Exchange asking how many clues were needed to create a 4x4 Hidato puzzle with a unique solution.
Sometime after this, I took a br …
- 2,423
11
votes
1
answer
766
views
A Hidato, but with a complex twist!
Today's Hidato puzzle has a pretty complex twist. What is the twist, you ask?
This is what the twist is:
There are three different colors:
Yellow: Represents a prime number
Green: Represents a squar …
- 2,423