List questions from recreational-mathematics

Published on 14 Jan 2024 - 13:10

111

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Fun integral -help

Published on 15 Jan 2024 - 11:23

130

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Please make expressions equal to 6 using exactly four 4s

Published on 16 Jan 2024 - 15:10

22

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Maximal sum of a rule-based sequence

Published on 10 Apr 2026 - 19:27

103

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Prove that no closed knight's tour is possible on the $2 \times 2 \times 2 \times 2 \times 2 \times 2$ chessboard

Published on 25 Mar 2026 - 23:42

97

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Are there numbers that can be written as a power using their own base ten digits in order?

Published on 12 Apr 2026 - 8:01

223

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Information on permutation subgroups - symmetries of "Globe" like puzzle.

Published on 11 Apr 2026 - 16:05

246

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2 tables of 6 people: What's a schedule such that all pairs share a table for an equal amount of time?

Published on 26 Mar 2026 - 1:23

144

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Magical leaves and pairings

Published on 11 Apr 2026 - 16:32

59

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Optimal "maze length" in plane tilings

Published on 26 Mar 2026 - 19:05

74

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For which positive integers $k$ does $\frac{a^2 + b^2}{2} = n^2 + k$ have an integer solution?

Published on 06 Apr 2026 - 16:15

33

Views

Write the geometric progression equation

Published on 26 Mar 2026 - 10:57

111

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Alright this might sound stupid. Why do we expand by 10?

Published on 11 Apr 2026 - 17:04

32

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Proof Check: Probability of choosing a specific urn when pulling a red ball.

Published on 12 Apr 2026 - 6:43

95

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Question about area of a circle

Published on 11 Apr 2026 - 15:23

List Question

Can you improve your chances of guessing the time by waiting for a bit?

Fun integral -help

Please make expressions equal to 6 using exactly four 4s

Maximal sum of a rule-based sequence

Prove that no closed knight's tour is possible on the $2 \times 2 \times 2 \times 2 \times 2 \times 2$ chessboard

Are there numbers that can be written as a power using their own base ten digits in order?

Information on permutation subgroups - symmetries of "Globe" like puzzle.

2 tables of 6 people: What's a schedule such that all pairs share a table for an equal amount of time?

Magical leaves and pairings

Optimal "maze length" in plane tilings

For which positive integers $k$ does $\frac{a^2 + b^2}{2} = n^2 + k$ have an integer solution?

Write the geometric progression equation

Alright this might sound stupid. Why do we expand by 10?

Proof Check: Probability of choosing a specific urn when pulling a red ball.

Question about area of a circle

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