User contributions for Oscarlevin
A user with 1,022 edits. Account created on 28 March 2010.
24 July 2017
- 20:1020:10, 24 July 2017 diff hist +6 One-way roads →Puzzle
3 April 2016
- 15:2315:23, 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
- 19:1519:15, 4 April 2015 diff hist +20 m Condominium No edit summary current
31 March 2015
- 10:2110:21, 31 March 2015 diff hist 0 N File:Trolls.png No edit summary current
- 10:2010:20, 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
- 11:0411:04, 19 January 2015 diff hist −19 m Draft:Bpow29 No edit summary current
16 November 2014
- 12:2112:21, 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
- 16:4616:46, 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
- 16:3916:39, 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
- 16:1816:18, 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
- 16:1516:15, 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
- 16:1416:14, 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
- 16:1216:12, 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
- 16:0616:06, 10 November 2014 diff hist +9 Draft:Bpow61 No edit summary current
- 16:0516:05, 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..."
- 15:5915:59, 10 November 2014 diff hist +4 m Draft:Bpow60 No edit summary current
- 15:5915:59, 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..."
- 15:5315:53, 10 November 2014 diff hist −7 Draft:Bpow59 No edit summary current
- 15:5015:50, 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..."
- 15:4915:49, 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