User contributions for Oscarlevin
A user with 1,022 edits. Account created on 28 March 2010.
18 August 2024
- 10:4310:43, 18 August 2024 diff hist −184 Meta:Main Page No edit summary current
5 October 2023
- 07:5307:53, 5 October 2023 diff hist +4 Flying trains →Puzzle current
3 September 2019
- 14:3314:33, 3 September 2019 diff hist −1 m Ball drop →Puzzle current
17 July 2019
- 21:0021:00, 17 July 2019 diff hist +411 Meta:Links No edit summary current
- 19:5219:52, 17 July 2019 diff hist +923 Meta:Links No edit summary
- 19:2219:22, 17 July 2019 diff hist −30 Template:Bradley PoW No edit summary current
- 19:2119:21, 17 July 2019 diff hist +21 Meta:Links No edit summary
26 October 2017
- 08:1508:15, 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
1 October 2017
- 12:1512:15, 1 October 2017 diff hist −1 Cents per cents No edit summary current
6 August 2017
- 07:3207:32, 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..."
25 July 2017
- 06:1606:16, 25 July 2017 diff hist +64 Next letter added links. current
- 06:1406:14, 25 July 2017 diff hist +131 Next sequence No edit summary current
- 06:1006:10, 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
24 July 2017
- 19:1919:19, 24 July 2017 diff hist +2 Wagon collision →Help current
- 19:1819:18, 24 July 2017 diff hist +4 Wagon collision →Help
- 19:1719:17, 24 July 2017 diff hist +4 Wagon collision →Help
- 19:1719:17, 24 July 2017 diff hist +4 Wagon collision →Help
- 19:1619:16, 24 July 2017 diff hist −1 Wagon collision →Help
- 19:1619:16, 24 July 2017 diff hist +2 Wagon collision →Help
- 19:1619:16, 24 July 2017 diff hist +8 Wagon collision →Help
- 19:1519:15, 24 July 2017 diff hist −7 Wagon collision →Help
- 19:1119:11, 24 July 2017 diff hist −6 One-way roads →Puzzle current
- 19:1019:10, 24 July 2017 diff hist +6 One-way roads →Puzzle
3 April 2016
- 14:2314:23, 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
4 April 2015
- 18:1518:15, 4 April 2015 diff hist +20 m Condominium No edit summary current
31 March 2015
- 09:2109:21, 31 March 2015 diff hist 0 N File:Trolls.png No edit summary current
- 09:2009:20, 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
19 January 2015
- 10:0410:04, 19 January 2015 diff hist −19 m Draft:Bpow29 No edit summary current
16 November 2014
- 11:2111:21, 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
10 November 2014
- 15:4615:46, 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
- 15:3915:39, 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
- 15:1815:18, 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
- 15:1515:15, 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
- 15:1415:14, 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
- 15:1215:12, 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
- 15:0615:06, 10 November 2014 diff hist +9 Draft:Bpow61 No edit summary current
- 15:0515:05, 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..."
- 14:5914:59, 10 November 2014 diff hist +4 m Draft:Bpow60 No edit summary current
- 14:5914:59, 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..."
- 14:5314:53, 10 November 2014 diff hist −7 Draft:Bpow59 No edit summary current
- 14:5014:50, 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..."
- 14:4914:49, 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
- 14:4614:46, 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
- 14:4314:43, 10 November 2014 diff hist +2 Draft:Bpow55 No edit summary current
- 14:4214:42, 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..."
- 14:2514:25, 10 November 2014 diff hist +9 m Draft:Bpow54 No edit summary current
- 14:2414:24, 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..."
9 November 2014
- 20:1620:16, 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
8 November 2014
- 20:1820:18, 8 November 2014 diff hist +5 MediaWiki:Sidebar Undo revision 1337 by Oscarlevin (talk) current
- 20:1720:17, 8 November 2014 diff hist −1 Help:Contents No edit summary current