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15
Math.TechQA.Club
2026-04-16 19:43:46
306
Views
Arranging numbers from $1$ to $n^2$ in a $n\times n$ board
Published on
16 Apr 2026 - 19:43
#combinatorics
#discrete-mathematics
#contest-math
#recreational-mathematics
#puzzle
2.1k
Views
What is the math beyond Aloe polyphylla?
Published on
11 May 2026 - 0:15
#geometry
#soft-question
#recreational-mathematics
#symmetry
92
Views
A problem about a cake...
Published on
10 May 2026 - 17:33
#recreational-mathematics
#problem-solving
92
Views
A conjecture involving digit sums and reversed numbers
Published on
10 May 2026 - 12:33
#recreational-mathematics
#decimal-expansion
163
Views
What numbers can be created by repetitive division of subsequent natural numbers?
Published on
10 May 2026 - 14:53
#recreational-mathematics
#continued-fractions
652
Views
Is there an exact value to the minimum of the infinite tetration of $x$?
Published on
10 May 2026 - 12:35
#convergence-divergence
#recreational-mathematics
#maxima-minima
#tetration
154
Views
Puzzle reference request: planting trees in a semicircle orchard
Published on
17 Apr 2026 - 1:26
#geometry
#reference-request
#recreational-mathematics
#puzzle
1.2k
Views
Rectangle dissection into similar rectangles
Published on
10 May 2026 - 14:45
#algebraic-geometry
#recreational-mathematics
#tiling
155
Views
A partition of 186 into five parts under divisibility constraints
Published on
11 May 2026 - 2:03
#number-theory
#graph-theory
#arithmetic
#recreational-mathematics
47
Views
Balls and scales (generalization)
Published on
10 May 2026 - 11:04
#recreational-mathematics
60
Views
How to guess the least number of spheres in a problem involving taking out objects from a jar?
Published on
14 Apr 2026 - 16:00
#probability
#recreational-mathematics
260
Views
Patterns in solutions to simultaneous palindromes in two number bases
Published on
04 May 2026 - 13:40
#elementary-number-theory
#diophantine-equations
#recreational-mathematics
#pattern-recognition
#palindrome
123
Views
How to properly relate the time elapsed and the angles in a problem involving an analog watch?
Published on
12 Apr 2026 - 8:25
#algebra-precalculus
#geometry
#recreational-mathematics
33
Views
Finding a value between two numbers, given percentage, which is bigger when the percentage is smaller
Published on
10 Apr 2026 - 1:39
#recreational-mathematics
4.3k
Views
Rigorous proof to show that the $15$-Puzzle problem is unsolvable
Published on
06 May 2026 - 6:09
#discrete-mathematics
#proof-writing
#recreational-mathematics
#puzzle
#invariance
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