User contributions for Oscarlevin

19 May 2010

• 07:3807:38, 19 May 2010 diff hist −3‎ Commuter ‎No edit summary
• 07:3407:34, 19 May 2010 diff hist +52‎ Commuter ‎No edit summary

18 May 2010

• 10:1710:17, 18 May 2010 diff hist +1,008‎ N Nine prisoners ‎ Created page with 'Nine tongueless prisoners awake and see that they are all wearing hats (although they cannot see their own). The guard tells the prisoners that each hat is either red or white. I…'
• 10:1210:12, 18 May 2010 diff hist +43‎ Prisoners in red hats ‎No edit summary
• 10:1110:11, 18 May 2010 diff hist +985‎ N Prisoners in red hats ‎ Created page with 'Here is different version of the Green eyed dragons puzzle. ==Puzzle== Twenty-eight tongueless prisoners awake to see that they are all wearing hats (although they cannot s…'
• 10:0510:05, 18 May 2010 diff hist +29‎ N Five hats ‎ moved Five hats to Three prisoners: I think this is a more common name for the puzzle. current
• 10:0510:05, 18 May 2010 diff hist 0‎ m Three prisoners ‎ moved Five hats to Three prisoners: I think this is a more common name for the puzzle.
• 10:0210:02, 18 May 2010 diff hist +899‎ N Three prisoners ‎ Created page with 'Three prisoners are waiting in a single cell. The jailer comes in, and shows the prisoners 5 hats: two red and three black. He then turns out the lights, and puts a hat on each p…'
• 09:5609:56, 18 May 2010 diff hist +75‎ N Category:Cases ‎ Created page with 'These puzzles illustrate the importance of breaking a solutions into cases.' current
• 09:5509:55, 18 May 2010 diff hist +68‎ N Category:Lateral thinking ‎ Created page with 'These puzzles require some creative "out of the box" style thinking.'
• 09:5409:54, 18 May 2010 diff hist +44‎ N Category:Induction ‎ Created page with 'Puzzles illustrating mathematical induction.'
• 09:5309:53, 18 May 2010 diff hist +90‎ N Category:Pattern recognition ‎ Created page with 'These puzzles are good examples of how important patter recognition is to problem solving.'
• 09:5109:51, 18 May 2010 diff hist +42‎ Meta:Main Page ‎No edit summary
• 09:5009:50, 18 May 2010 diff hist +132‎ N Category:Crossing puzzles ‎ Created page with 'This classic genre of puzzle involves characters which must cross from one side to another, given some near debilitating conditions.'
• 09:4809:48, 18 May 2010 diff hist +66‎ N Category:Velocity puzzles ‎ Created page with 'Velocity can be tricky. Here are some puzzles to illustrate that.'
• 09:4709:47, 18 May 2010 diff hist +48‎ N Category:Probability ‎ Created page with 'Puzzles which illustrate ideas from probability.'
• 09:4709:47, 18 May 2010 diff hist +35‎ N Category:Weighing puzzles ‎ Created page with 'Puzzles where weighing is involved.'
• 09:4509:45, 18 May 2010 diff hist +177‎ N Category:Liar puzzles ‎ Created page with 'This classic genre of puzzle presents various statements, some of which are true, and some of which are false. It is up to the solver to determine which are which, if possible.'
• 09:4309:43, 18 May 2010 diff hist +1‎ Chests of logic ‎No edit summary
• 09:4309:43, 18 May 2010 diff hist +63‎ N Category:Graph theory ‎ Created page with 'Here are some puzzles which illustrate ideas from graph theory.'
• 09:4209:42, 18 May 2010 diff hist +263‎ N Category:Pigeonhole principle ‎ Created page with 'The pigeonhole principle states that if $n$ objects (pigeons) are to be placed in fewer than $n$ sets (holes), then at least one set must contain more than one object. Puzzles i…'
• 09:4009:40, 18 May 2010 diff hist +2‎ Meta:Main Page ‎No edit summary
• 09:3909:39, 18 May 2010 diff hist +57‎ Meta:Main Page ‎No edit summary
• 09:3809:38, 18 May 2010 diff hist +56‎ N Category:Number theory ‎ Created page with 'These puzzles all contain some number theoretic content.'
• 09:3409:34, 18 May 2010 diff hist +92‎ N Category:Algebra ‎ Created page with 'Although these puzzles could be solved with algebra, there is often a more elegant solution.'
• 09:3309:33, 18 May 2010 diff hist +78‎ N Category:Positional ‎ Created page with 'These puzzles require the solver to consider the relative position of objects.' current
• 09:3209:32, 18 May 2010 diff hist +172‎ N Category:Logic ‎ Created page with 'In general, these are puzzles which require mostly logical thinking to solve. Additionally, some of these puzzles might in fact deal with logic as a branch of mathematics.'
• 09:3109:31, 18 May 2010 diff hist +59‎ N Category:Comparison puzzles ‎ Created page with 'These are puzzles where it is necessary to compare objects.'
• 09:2509:25, 18 May 2010 diff hist +13‎ Red vs black ‎No edit summary

17 May 2010

• 08:4408:44, 17 May 2010 diff hist +575‎ N Five towns ‎ Created page with 'A puzzle similar to the Houses and utilities puzzle. ==Puzzle== Back in the days of yore, five small towns decided they wanted to build roads connecting each pair of towns.…'

16 May 2010

• 07:4307:43, 16 May 2010 diff hist −12‎ Friends or non-friends ‎No edit summary
• 07:4207:42, 16 May 2010 diff hist −25‎ Splitting ten ‎No edit summary
• 07:4107:41, 16 May 2010 diff hist +47‎ Splitting ten ‎No edit summary
• 07:3907:39, 16 May 2010 diff hist −1‎ Lean meat ‎No edit summary
• 07:3707:37, 16 May 2010 diff hist −12‎ Commuter ‎No edit summary
• 07:3507:35, 16 May 2010 diff hist 0‎ m Next letter ‎ Unprotected "Next letter"
• 07:3507:35, 16 May 2010 diff hist +74‎ Next letter ‎No edit summary
• 07:3407:34, 16 May 2010 diff hist +12‎ Seven orbs ‎No edit summary
• 07:3207:32, 16 May 2010 diff hist +473‎ N Help:Standard layout example ‎ Created page with 'Here is an introduction. Or nothing. Something short. ==Puzzle== Here is the main puzzle. How puzzling it is. This must be the first section. ==Help== {{Hint| Here is a h…' current
• 07:2807:28, 16 May 2010 diff hist +150‎ N Help:Simple layout example ‎ Created page with 'The puzzle goes here. Note that there are no section headings. {| style="border:1px solid black; background-color:#dddddd;" |Categories: go here |}' current
• 07:2507:25, 16 May 2010 diff hist +728‎ N Help:Standard layout ‎ Created page with 'All pages should conform to a somewhat standard layout, defined as follows: #For pages which only contain a single puzzle, with no other content (except perhaps a list of catego…' current
• 07:1407:14, 16 May 2010 diff hist +44‎ Help:Contents ‎No edit summary
• 06:5906:59, 16 May 2010 diff hist +135‎ N Help:Contents ‎ Created page with 'These are pages designed to help in the maintenance of the site. If you are looking for help on a specific puzzle, you are on you own.'
• 06:5606:56, 16 May 2010 diff hist +12‎ Lean meat ‎No edit summary
• 06:5506:55, 16 May 2010 diff hist +12‎ Three logicians ‎No edit summary

14 May 2010

• 07:1107:11, 14 May 2010 diff hist +77‎ N Category:Optimization puzzles ‎ Created page with 'Here are some puzzles where the goal is to minimize or maximize some quantity'
• 07:0907:09, 14 May 2010 diff hist +1,531‎ N Four travelers ‎ Created page with '==Puzzle== Late one night, four weary travelers come to an old rickety rope bridge over an crocodile infested gorge. With planks missing here and there, it is not safe to cross…'
• 06:3506:35, 14 May 2010 diff hist +657‎ N Gem thief ‎ Created page with 'Here is a liar/truth-teller puzzle I made up for an exam. ==Puzzle== Detective Ruby Gould is investigating the theft of some rare gemstones. She has five suspects (named Al, B…'
• 06:2406:24, 14 May 2010 diff hist +1,107‎ Two guards ‎No edit summary
• 06:1006:10, 14 May 2010 diff hist +2‎ Friends or non-friends ‎No edit summary