User contributions
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- 07:53, 5 October 2023 (diff | hist) . . (+4) . . Flying trains (→Puzzle) (current)
- 14:33, 3 September 2019 (diff | hist) . . (-1) . . m Ball drop (→Puzzle) (current)
- 21:00, 17 July 2019 (diff | hist) . . (+411) . . Meta:Links (current)
- 19:52, 17 July 2019 (diff | hist) . . (+923) . . Meta:Links
- 19:22, 17 July 2019 (diff | hist) . . (-30) . . Template:Bradley PoW (current)
- 19:21, 17 July 2019 (diff | hist) . . (+21) . . Meta:Links
- 08:15, 26 October 2017 (diff | hist) . . (+294) . . N Ants on a cube (Created page with "This is a generalization of the first puzzle in Presh Talwalkar's ''Math Puzzles Volume 1''. == Puzzle == 8 ants sit on the vertices of a cube (floating in space). Each ant...") (current)
- 12:15, 1 October 2017 (diff | hist) . . (-1) . . Cents per cents (current)
- 07:32, 6 August 2017 (diff | hist) . . (+771) . . N Cents per cents (Created page with "This is my version of a puzzle I originally saw on [https://www.theguardian.com/science/2017/jun/19/can-you-solve-it-pythagorass-best-puzzles Alex Bellos's Puzzle Block]. ==P...")
- 06:16, 25 July 2017 (diff | hist) . . (+64) . . Next letter (added links.) (current)
- 06:14, 25 July 2017 (diff | hist) . . (+131) . . Next sequence (current)
- 06:10, 25 July 2017 (diff | hist) . . (+702) . . N Sequence next in sequence (Created page with "This sequence guessing puzzle hides a beautiful, well known sequence. ==Puzzle== What comes next: 1, 2, 2, 1, 1, 2, 1, ....? ==Help== {{Hint| Count the number of repeating...") (current)
- 19:19, 24 July 2017 (diff | hist) . . (+2) . . Wagon collision (→Help) (current)
- 19:18, 24 July 2017 (diff | hist) . . (+4) . . Wagon collision (→Help)
- 19:17, 24 July 2017 (diff | hist) . . (+4) . . Wagon collision (→Help)
- 19:17, 24 July 2017 (diff | hist) . . (+4) . . Wagon collision (→Help)
- 19:16, 24 July 2017 (diff | hist) . . (-1) . . Wagon collision (→Help)
- 19:16, 24 July 2017 (diff | hist) . . (+2) . . Wagon collision (→Help)
- 19:16, 24 July 2017 (diff | hist) . . (+8) . . Wagon collision (→Help)
- 19:15, 24 July 2017 (diff | hist) . . (-7) . . Wagon collision (→Help)
- 19:11, 24 July 2017 (diff | hist) . . (-6) . . One-way roads (→Puzzle) (current)
- 19:10, 24 July 2017 (diff | hist) . . (+6) . . One-way roads (→Puzzle)
- 14:23, 3 April 2016 (diff | hist) . . (+422) . . N Draft:Bpow101 (Created page with "Suppose you have 19 hexagons arranged in roughly a 3x3x3 hexagon (so there is a center hexagon, surrounded by 6, surrounded by 12, just like in Settlers of Catan). Place the...") (current)
- 18:15, 4 April 2015 (diff | hist) . . (+20) . . m Condominium (current)
- 09:21, 31 March 2015 (diff | hist) . . (0) . . N File:Trolls.png (current)
- 09:20, 31 March 2015 (diff | hist) . . (+2,223) . . N Too many trolls (Created page with "right|200px This is a logic puzzle I made up for UNC's Math Challenge Problem ==Puzzle== While walking through a fictional forest, you come upon a large...") (current)
- 10:04, 19 January 2015 (diff | hist) . . (-19) . . m Draft:Bpow29 (current)
- 11:21, 16 November 2014 (diff | hist) . . (+2,474) . . N Rabbit row (Created page with "Here is a puzzle based on a neat graph theory counting problem. ==Puzzle== Eleven white rabbits live in eleven white houses, all in a row. One day, the rabbits get together...") (current)
- 15:46, 10 November 2014 (diff | hist) . . (+541) . . N Domino circuit (Created page with "==Puzzle== A domino consists of two squares, each with some number of dots between 0 and 6 in each square. A standard ''double-six'' set of dominoes contains exactly one domi...") (current)
- 15:39, 10 November 2014 (diff | hist) . . (+600) . . N Penguin lineups (Created page with "Here is a counting problem based on Gilbreath permutations. ==Puzzle== You have 10 penguins, each a different height. You want to take a photo of the penguins in a single s...") (current)
- 15:18, 10 November 2014 (diff | hist) . . (+183) . . N Draft:Bpow65 (Created page with "Given any nine points in a unit square, must there be among the triangles having vertices on the given points at least one whose area is no more than 1/8? {{Bpow}} Categor...") (current)
- 15:15, 10 November 2014 (diff | hist) . . (+568) . . N Draft:Bpow64 (Created page with "A field in the shape of a right triangle is to be subdivided into two fields of equal size by building a straight fence between two sides of the field. If the lengths of the...") (current)
- 15:14, 10 November 2014 (diff | hist) . . (+395) . . N Draft:Bpow63 (Created page with "A straight bar of metal, initially 800 feet long, expands 8 inches in length. The ends are fixed so that the bar becomes distorted into the shape of an arc of a circle, for wh...") (current)
- 15:12, 10 November 2014 (diff | hist) . . (+247) . . N Draft:Bpow62 (Created page with "A rectangular block of wood has for its three dimensions a different odd prime number of inches. Its volume and (total) surface area are, respectively, a three digit number an...") (current)
- 15:06, 10 November 2014 (diff | hist) . . (+9) . . Draft:Bpow61 (current)
- 15:05, 10 November 2014 (diff | hist) . . (+443) . . N Draft:Bpow61 (Created page with "Two ferry boats sail back and forth across a river, each traveling at a constant speed, and turning back without any loss of time. They leave opposite shores at the same insta...")
- 14:59, 10 November 2014 (diff | hist) . . (+4) . . m Draft:Bpow60 (current)
- 14:59, 10 November 2014 (diff | hist) . . (+754) . . N Draft:Bpow60 (Created page with "Find an ordered list of positive integers, <m>a_1, a_2,\ldots</m> with the fewest possible integers, satisfying all the following properties: # Every positive integer is the...")
- 14:53, 10 November 2014 (diff | hist) . . (-7) . . Draft:Bpow59 (current)
- 14:50, 10 November 2014 (diff | hist) . . (+293) . . N Draft:Bpow59 (Created page with " Describe as explicitly as you can all cubic polynomials with integer coefficients having (a) three distinct real roots, (b) local maximum and minimum values at integers, and...")
- 14:49, 10 November 2014 (diff | hist) . . (+494) . . N Draft:Bpow58 (Created page with "Consider the graph of <m>f(x) = x^2</m>. Imagine a circle of radius 1 rolling along the x-axis toward the origin until the circle just comes into contact with the graph. Where...") (current)
- 14:46, 10 November 2014 (diff | hist) . . (+957) . . N Draft:Bpow57 (Created page with "My dog, Scooter, got a new leash for his birthday. This leash is made of a flexible rubber coil, much like that on the handset of your telephone, which stretches when Scooter...") (current)
- 14:43, 10 November 2014 (diff | hist) . . (+2) . . Draft:Bpow55 (current)
- 14:42, 10 November 2014 (diff | hist) . . (+295) . . N Draft:Bpow55 (Created page with "Take any two positive integers <m>N</m> and <m>a</m>. Show that <m>N^a</m> is the sum of <m>N</m> consecutive odd integers. As an easy example, note that <m>7^{13} = 96889...")
- 14:25, 10 November 2014 (diff | hist) . . (+9) . . m Draft:Bpow54 (current)
- 14:24, 10 November 2014 (diff | hist) . . (+263) . . N Draft:Bpow54 (Created page with " What is the largest figure eight which fits into a right triangle? For the purposes of the problem, the loops of the figure eight are of the same size. For the more adventur...")
- 20:16, 9 November 2014 (diff | hist) . . (+583) . . N Five card draw (Created page with "This puzzle was inspired by a magic trick performed by Ricky Jay on the tonight show. ==Puzzle== Take a well shuffled deck of cards and deal off 10, face up, in a single lin...") (current)
- 20:18, 8 November 2014 (diff | hist) . . (+5) . . MediaWiki:Sidebar (Undo revision 1337 by Oscarlevin (talk)) (current)
- 20:17, 8 November 2014 (diff | hist) . . (-1) . . Help:Contents (current)
- 20:16, 8 November 2014 (diff | hist) . . (+116) . . Help:Contents
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