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15
Math.TechQA.Club
2026-04-13 22:33:01
248
Views
Chinese Checkers - How fast can a configuration of pegs advance (if only jumps are allowed)?
Published on
13 Apr 2026 - 22:33
#recreational-mathematics
#puzzle
128
Views
$2023$-esque numbers in other bases
Published on
15 Apr 2026 - 10:39
#elementary-number-theory
#recreational-mathematics
414
Views
Can you charge two devices with only one power socket?
Published on
12 Apr 2026 - 6:08
#inequality
#recreational-mathematics
#convex-geometry
209
Views
How many consecutive positive integers can be create from four positive integers?
Published on
14 Apr 2026 - 2:57
#arithmetic
#recreational-mathematics
#puzzle
40
Views
Probability that a uniformly selected point in the interior of sphere...
Published on
15 Apr 2026 - 4:26
#recreational-mathematics
286
Views
Why is the area of a square $a^2$ and volume of a cube $a^3$?
Published on
14 Apr 2026 - 12:37
#geometry
#euclidean-geometry
#recreational-mathematics
117
Views
Geometric proof that $1 + 2+ 3 + \dots + n=\frac{(n+1)n}{2}$
Published on
12 Apr 2026 - 2:07
#geometry
#solution-verification
#summation
#recreational-mathematics
#proof-without-words
98
Views
Examples of relations that don't satisfy one of the three properties of an equivalence relation while satisfying the other two?
Published on
15 Apr 2026 - 0:00
#solution-verification
#recreational-mathematics
#equivalence-relations
80
Views
How to solve this quadratic congruence $x^2\equiv x\pmod{\!1000}$ and find self-reproducing numbers?
Published on
14 Apr 2026 - 21:20
#elementary-number-theory
#proof-explanation
#recreational-mathematics
145
Views
Why do the Gaussian rationals make these patterns?
Published on
11 May 2026 - 1:01
#number-theory
#recreational-mathematics
#gaussian-integers
#farey-sequences
162
Views
Two hundred people are assigned a number and enter a room. Matching numbers leave. What will be the highest total in the room?
Published on
28 Apr 2026 - 20:04
#probability
#statistics
#recreational-mathematics
#problem-solving
636
Views
Coin weighing puzzle
Published on
14 Apr 2026 - 1:37
#combinatorics
#optimization
#recreational-mathematics
#puzzle
121
Views
Queen's graph diameter and knight's graph diameter for a $n \times n \times \dots \times n$ chessboard
Published on
16 Apr 2026 - 21:07
#graph-theory
#metric-spaces
#recreational-mathematics
#integers
#chessboard
155
Views
Why doesn't my approach work for this probability question?
Published on
28 Apr 2026 - 20:01
#probability
#discrete-mathematics
#recreational-mathematics
#problem-solving
161
Views
A new definition of $e^x$ for $x\geq 1$ via a limit?
Published on
14 Apr 2026 - 18:30
#limits
#derivatives
#exponential-function
#recreational-mathematics
#gamma-function
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