Newest Questions
30,136 questions
11
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1
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"Onomat-appear" - a straightforward wordsearch?
Just a straightforward wordsearch for no perfidious reason whatsoever...
ARCHWAY, ASLANT, BENT, CANT, CARON, CIRCULAR, CORNER, COUNTER-CLOCKWISE, CRESCENT, DOWNSTAIRS, GREATER THAN, RAINBOW, RIGHT ...
- 172k
8
votes
1
answer
109
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A Stack Of Figures (of the same family)
There are a total of 225 edges and all of them are of equal length.
There are a total of 85 regular polygons, where 75 of them are identical and the remaining 10 have exactly one identical match.
...
- 58k
4
votes
2
answers
177
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The Emperor’s Magic Trick: The Omnipotent Compass
This is a follow up question to my previous question: The Emperor’s Command: All Roads Lead to Rome, because our emperor wants more!
The Emperor was pleased that all roads led to Rome, but his thirst ...
- 36.6k
9
votes
2
answers
321
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A Logic Puzzle Where No Variable Can Be Determined Without All Six Clues
Six variables 𝐴, 𝐵, 𝐶, 𝐷, 𝐸, 𝐹 are distinct integers from 1 to 10 (inclusive).
They satisfy the following conditions (I've added mathematical definitions on the right to avoid ambiguity):
𝐵 is ...
- 491
11
votes
3
answers
627
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The Emperor’s Command: All Roads Lead to Rome
This is follow-up question to All (red and blue) roads lead to Rome
Eight cities lie in a kingdom, with Rome at the center of power.
Every morning, the Emperor shouts a sequence of colors from his ...
- 36.6k
29
votes
4
answers
1k
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All (red and blue) roads lead to Rome
(This problem is from the 2024 Konhauser Problemfest, written by Stan Wagon.)
Eleven cities, one of them being Rome, are arranged in a circle, with adjacent cities joined by a pair of one-way roads, ...
- 2,766
12
votes
5
answers
623
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4x4 grid with all 7 adjacent colour pairs
Can you paint the cells of a 4x4 grid with 7 colours such that every pair of different colours is orthogonally adjacent at least once?
Bonus: Can you achieve this with one cell unpainted?
13
votes
1
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701
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A Resting Anaconda To My Risk-Taking Friend
My gambler friend, who is very much of a risk-taker, usually ends up losing more than he wins. He plays all kind of casino games but mostly poker where he rarely folds his hands (so no wonder he isn't ...
- 58k
4
votes
1
answer
179
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Lights-out variant on a tetrahedron
You have a tetrahedron whose faces are covered in 4 × 4 triangular grids. Each triangular cell has a light and a switch that toggles that light and the three edge-adjacent lights. The blue dots ...
- 28.6k
9
votes
1
answer
444
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Check out these rebuses
A set of simple rebuses with a common theme. The bottom-right is a meta-puzzle for once you've solved all the rebuses.
- 16.4k
7
votes
1
answer
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Surviving Letters
22 letters have been placed and correctly arranged inside 22 thin boxes. Some of the rows then got rearranged and some boxes disappeared.
Exactly which boxes disappeared (and how did they disappear?) ...
- 58k
9
votes
3
answers
838
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Two hunters and 1 rabbit in bushes in a circle
We have two hunters and 10 bushes (In a circle). There is also a single bunny, which moves to an adjacent location each turn.
In how many tries will the hunters successfully kill the bunny?
...
- 295
11
votes
1
answer
210
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Fillomino: Running out of fingers
This is a Fillomino puzzle. Divide the grid into orthogonally connected regions so that no two regions of the same size share an edge, and every number inside a region indicates the size of its region....
- 84.7k
24
votes
1
answer
640
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A Holiday to Remember... or Forget?! (Meta-puzzle)
This is the final part of A Holiday to Remember..., a 14-part puzzle hunt.
During the course of this series, 13 locations around the US state of Colorado have been visited:
These will be helpful as ...
- 172k
4
votes
5
answers
642
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The Calabash Calculator
You are introduced to the Calabash Calculator, which supports the following operations:
The four basic arithmetic operations, + - × ÷
The six comparison operators, ...
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