Newest Questions
29,692 questions
2
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Puzzle hidden in an image of penguins
This computer science puzzle was presented to me by my Computer Science teacher as a challenge. He explicitly granted permission to distribute this image and to seek help or research methods on the ...
39
votes
4
answers
2k
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The Worst Possible Chess Move
Bad, even very bad chess moves are nothing out of the ordinary. Every single player will have had their fair share of stupid blunders like hanging a queen in an otherwise completely winning position. ...
- 11k
5
votes
0
answers
166
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What is the optimum strategy for a logic word puzzle?
I’ve made a small browser puzzle called Codextri where you have to identify a hidden set of three letters by guessing words. Each guess returns a score based on how many of those hidden letters your ...
- 51
8
votes
3
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566
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How do I construct longer cryptic clues without overly complicated parsings?
I dabble in cryptic-clues, especially as part of Puzzling SE's chat game. I believe I have a solid grasp of how to construct an acceptable clue: how indicators work, what makes a fair definition, etc. ...
- 12.4k
0
votes
1
answer
96
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How do I proceed with this Tango puzzle?
Rules to fill out the grid:
I must use 3 of each symbol in each row, and in each column.
I cannot use 3 consecutive identical symbols (horizontally or vertically).
A solid border indicates that the ...
- 1,429
22
votes
1
answer
876
views
The Optimal Way
My puzzle enthusiast friend, who travels around the world whenever they can, recently sent me a puzzle (knowing very well I enjoy solving puzzles as well).
Hey friend! Today I'm visiting a country ...
- 53.8k
12
votes
6
answers
1k
views
Crossing a square pond with beams
Here is a classical mathematical puzzle:
In the middle of a square pond lies a square island (whose sides are aligned with the sides of the pond). On the island is a tower with a princess locked ...
- 121
13
votes
2
answers
1k
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Think inside the box
The answer word has been split into three parts.
Below are the clues for each, listed in no particular order.
Bambi’s mother, musically
kitchen weapon
Atlas, but solar
Hope it’s not all Greek to you....
- 1,049
11
votes
2
answers
628
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Descriptive Grid
What is the hidden rule that will lead you to an answer? Explain your reasoning.
- 53.8k
7
votes
1
answer
388
views
A Sequence of Words
I created a sequence of words (see a Note below) using a certain method and came up with somewhat cryptic clues for them.
Unlike in crossword puzzles, I did not include word lengths with these clues.
...
- 1,049
13
votes
2
answers
560
views
Regular pentagram inscribed in a parabola
The diagram shows a regular pentagram inscribed in a parabola.
Can another red pentagon (congruent to the one shown) fit in the gray region?
- 5,205
1
vote
5
answers
545
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Find all integers n such that the sum of the factorials of its digits equals ⌊√n⌋ [closed]
Find all integers n such that the sum of the factorials of its digits equals ⌊√n⌋.
For example, if n=2025, then 2!+0!+2!+5!=⌊√2025⌋, although this is not true.
How can you find all integers n that ...
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6
votes
0
answers
221
views
What is the history behind this chess position?
In the game depicted below, Black managed to come out on top by delivering checkmate to the white king trapped in the corner. On the way to this outcome, seven pieces were captured at several points ...
- 11k
-6
votes
7
answers
202
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How do you get 5 by using the numbers 2, 2, 3 and 5?
You can use addition, multiplication, subtraction, and division as many times as you want but can only use the numbers one time each.
-3
votes
0
answers
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What is the context? [closed]
As a technical writer, I know that CCVC represents words that begin with consonant-consonant-vowel-consonant, then one would assume a CCC words are words beginning with three consonants but that isn't ...
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