Question

Count the number of unique permutations of this puzzle

score 90 · Answer 1 · 2026-04-13 20:29:01

90

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Count the number of unique permutations of this puzzle

Published on 13 Apr 2026 - 20:29

score 87 · Answer 2 · 2026-04-09 14:14:45

87

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Need help with a probability problem about collisions

Published on 09 Apr 2026 - 14:14

score 217 · Answer 3 · 2026-03-25 09:50:02

217

Views

Seeking Proof: Can Rubik's Cube States be Mapped to a Euclidean Space of a Certain Dimension?

Published on 25 Mar 2026 - 9:50

score 26 · Answer 4 · 2026-04-11 19:49:33

26

Views

Network and Diagrams question

Published on 11 Apr 2026 - 19:49

score 174 · Answer 5 · 2026-03-25 17:34:09

174

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Three grasshoppers jumping on a line

Published on 25 Mar 2026 - 17:34

score 363 · Answer 6 · 2026-04-20 02:32:54

363

Views

15 puzzle problem using Branch and Bound

Published on 20 Apr 2026 - 2:32

score 620 · Answer 7 · 2026-04-09 23:14:18

620

Views

Algorithm for Starting Nonograms

Published on 09 Apr 2026 - 23:14

score 571 · Answer 8 · 2026-04-14 21:00:59

571

Views

Australian Mathematics Competition Year 7-8 Question 21

Published on 14 Apr 2026 - 21:00

score 1.2k · Answer 9 · 2026-04-14 11:53:31

1.2k

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In how many way can the number $100$ be expressed as a sum of $3$ different positive integers?

Published on 14 Apr 2026 - 11:53

score 610 · Answer 10 · 2026-04-14 10:48:42

610

Views

Australian Mathematics Competition 2022 Junior Level Question 25

Published on 14 Apr 2026 - 10:48

score 111 · Answer 11 · 2026-04-15 11:29:37

111

Views

Coloring the faces of n^3 unit cubes s.t., for each color j between 1 and n, the cubes can be arranged to form nxnxn cube with j-colored outer faces

Published on 15 Apr 2026 - 11:29

score 165 · Answer 12 · 2026-04-15 10:43:35

165

Views

Maximum possible number of 1012-element subsets of {1,2,...,2024} such that no three intersect at more than one element

Published on 15 Apr 2026 - 10:43

score 105 · Answer 13 · 2026-04-13 00:45:50

105

Views

What is the Survival Probability of a Single Prisoner in The 100 Prisoners Problem

Published on 13 Apr 2026 - 0:45

score 128 · Answer 14 · 2026-04-16 15:49:10

128

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A card player with $\$32$ wins $4$ of $7$ games, where he and his opponent bet $50\%$ of his money each time. How much money does he have in the end?

Published on 16 Apr 2026 - 15:49

score 122 · Answer 15 · 2026-04-16 11:04:51

122

Views

What is the maximum number of points in R2 such that in the distance matrix, no more than three points are closest to all others?

Published on 16 Apr 2026 - 11:04

List Question

Count the number of unique permutations of this puzzle

Need help with a probability problem about collisions

Seeking Proof: Can Rubik's Cube States be Mapped to a Euclidean Space of a Certain Dimension?

Network and Diagrams question

Three grasshoppers jumping on a line

15 puzzle problem using Branch and Bound

Algorithm for Starting Nonograms

Australian Mathematics Competition Year 7-8 Question 21

In how many way can the number $100$ be expressed as a sum of $3$ different positive integers?

Australian Mathematics Competition 2022 Junior Level Question 25

Coloring the faces of n^3 unit cubes s.t., for each color j between 1 and n, the cubes can be arranged to form nxnxn cube with j-colored outer faces

Maximum possible number of 1012-element subsets of {1,2,...,2024} such that no three intersect at more than one element

What is the Survival Probability of a Single Prisoner in The 100 Prisoners Problem

A card player with $\$32$ wins $4$ of $7$ games, where he and his opponent bet $50\%$ of his money each time. How much money does he have in the end?

What is the maximum number of points in R2 such that in the distance matrix, no more than three points are closest to all others?

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