Dan Hoey's posts to rec.puzzles

DateSubject
March 29, 1989Weighing 5 balls
March 30, 1989Weighing 5 balls
December 20, 1989Old chestnut (spoiler)
December 21, 1989Old chestnut
April 3, 1990Pythagorean Problem (SPOILER)
May 18, 1990Palindromes (was Re: No rhyme or reason - word games ??!!)
August 30, 1990Rubik Cube Notation for > 3x3x3
September 25, 1990Finite Automata puzzle
December 11, 1990Monty Hall problem: a precise statement
December 14, 1990Swimming pool riddle (SPOILER)
December 14, 1990Swimming pool riddle (SPOILER) (patch)
December 19, 1990A new and better digit puzzle
December 20, 1990Another 10-digit puzzle (no spoilers)
January 8, 1991An old Math Magazine problem (was Re: A mysterious shell script.)
January 10, 1991Numbers from 1 to 1,000,000 (corrected)
January 28, 1991Perfect numbers
February 19, 1991Correction to which kind
February 25, 1991CS problems with names
March 22, 1991Cross-sectional symmetry (was Re: Four ounces)
March 22, 1991seeing the trees for the forest (correction)
April 9, 1991Longest minimum path (was word tesselation)
April 9, 1991Palintuples
April 15, 1991Palintuples solution
April 15, 1991NPR Sunday Puzzler
May 8, 1991Name this property
May 14, 1991Optimal change and related trivia
May 16, 1991Optimal change and related trivia
July 10, 1991GAMES magazine
July 10, 1991Boxes with same volume and area
July 11, 1991Help on a Boolean logic problem
July 15, 1991Stamps spoiler: (was Chris? & Balls & Balances)
July 16, 1991NPR puzzle
July 22, 1991Placing tiles in a grid (was: Covering a grid with tiles)
July 24, 1991A Puzzling Catalyst (Spoiler, but the puzzle continues)
January 2, 1992Convergent/Divergent series
January 8, 1992Noughts and crosses
January 9, 1992Perfect numbers (was 2 things...)
February 12, 1992"the other is a girl" - a chance to read the rules
February 26, 1992Go-moku (renju) book.
March 27, 1992(different) Number puzzle
April 22, 1992Representing 4 with 7's (was Re: hmmmm)
April 23, 1992Counting down to 383, hints
April 23, 1992Rubik's Cube, Speed
May 5, 1992Counting down to 383, spoiler
May 8, 1992Triangle/Hexagon Area Ratio (corrected spoiler)
May 8, 1992Hypercube puzzle
May 20, 1992Solution of the Tiling Problem.
May 20, 1992Pseudoshuffle
May 20, 1992Extension to Perfect Squares
May 20, 1992Massive logic problem (FAQ, continued)
June 22, 1992CHOMP
July 14, 1992Chomp
July 17, 1992Unavoidable sets of congruences (was The Erdos kitty)
July 23, 1992Plane Division
July 25, 1992Digital Invariants (was Number Theory)
August 3, 1992Gummy Drop-bears (spoilers and discussion)
August 4, 1992sod.! (was a series problem and answer)
August 4, 1992Prime of concatenated primes (spoiler)
August 7, 1992Gummy Snipes (spoiler)
September 25, 1992Factorization puzzle (many more solutions)
October 7, 1992Wooden "Puzzles"...
October 16, 1992Results: Unfolding the tesseract
November 18, 1992Our favorite series
February 3, 1993an algorithm for determining the shortest Roman numeral string?
February 3, 1993word used as its own opposite
February 3, 1993word used as its own opposite
March 11, 1993Computer dating (was Re: Computer logic)
July 7, 1993Floor Tiling
July 8, 1993Tiling: The Conway Criterion
July 26, 1993Matching digits (was Re: A puzzle)
October 1, 1993Folding a strip of stamps
October 5, 1993Correction Re: Folding a strip of stamps
October 7, 1993Rare Vintage Whine [ Was Re: squares puzzle (no computer) ]
November 26, 1993Picking a tiling of the M*N rectangle with dominos
December 16, 1993Wanted: Rubik's Revenge
December 22, 1993The 4^3 and 3^4 Rubik puzzles (was Re: Wanted: Rubik's Revenge)
March 11, 1994More on Marilyn
April 8, 1994SUMMARY: card shuffling algorithms
May 3, 1994Digital Invariants (was Factorions)
May 17, 1994Geometric Construction Puzzle
June 22, 1994Kaprekar's process (was Re: Help! Pattern Driving Me Nuts!)
July 1, 1994Rubik Nightmare (a.k.a. Rubik's Revenge)
July 4, 1994Rubik Nightmare (a.k.a. Rubik's Revenge)
July 12, 1994COMMON DIVISORS
July 15, 1994A turn on the carouselsius (Re: Move one digit ...)
July 20, 1994Game analysis sought
August 26, 1994Tuition FEES
August 29, 1994filling the surface with 3,4,6-gons (spoiler and new puzzle)
August 29, 1994Q: What is FreeCell?
September 2, 1994physics/milk.and.coffee
September 16, 1994Instant Insanity
September 19, 1994POINT PUZZLE
September 19, 1994Painted cubes
September 19, 19944-D puzzles
September 23, 1994C puzzle
September 30, 1994An interesting riddle
September 30, 1994An interesting riddle
October 5, 1994The Money Pump Paradox
October 5, 19948 bishops puzzle from "The 7th Guest"
October 6, 1994Pudgiest Mobius band
October 11, 1994Pudgiest Mobius band
October 24, 1994Rubik's Cube impossible states
October 25, 1994Rubik's Cube impossible states
October 29, 1994Rubik's Cube impossible states
December 5, 1994number theory stuff
December 7, 1994Dogs Mead
December 8, 1994Dogs Mead
December 20, 1994Cube inside other cube
December 23, 1994Cutting up "nice" 3D objects
December 23, 1994Cutting up "nice" 3D objects (oops)
December 27, 1994Cutting up "nice" 3D objects (oops)
January 6, 1995Heading northwest
January 20, 1995WE puzzler for 1-15-95 [spoiler]
February 7, 1995What happened to POSH on NPR?
February 24, 1995Boodle Phil moiven?
March 7, 1995Triangle Puzzle
March 7, 1995Triangle Puzzle (spoiler)
March 7, 1995Sequence Problem
March 21, 1995Enigma's Puzzle 1 (SPOILER + quibble puzzle)
March 23, 1995Enigma's Puzzle 1 (SPOILER + quibble puzzle)
April 11, 1995Strings
April 20, 1995aba string problem
May 5, 1995partial spoiler Re: NPR puzzle for 4-30-95
May 8, 1995An interesting Moebius band problem
May 12, 1995integral pythagorean theorem puzzle...
May 15, 1995More Number Puzzlers [ spoiler ]
June 21, 1995Washington Post on Statistics in Elementary School
June 26, 1995A cute counting problem <yaSPOILER>
July 5, 1995Rubik's cube size of data file
July 7, 1995NEW SORT METHOD!! FAST!!!!!! NEW??
July 9, 1995Marlow's Units, Unit One - How? [SPOILER]
July 12, 1995Rubic's 2x2x2 3x3x3 4x4x4 ... nxnxn virtual cubes
July 19, 1995Silverman's South American Game
July 20, 1995tough math puzzle ! ?
July 20, 1995Cool: WH Smiths. Marvelous people
July 27, 1995angle trisection
September 11, 1995NPR puzzle for 9-10-95.
September 15, 1995In the Bag! (spoiler)
September 20, 1995cutting sticks - an algorithm?
September 21, 1995cutting sticks problem (puzzle)
October 29, 19954x4x4 Cube (Rubiks Revenge) Solution?
October 29, 1995Another Tetris puzzle
November 8, 1995WE puzzle for 11-5-95 (spoiler)
November 16, 1995Counting rectangles (Spoiler) (was Re: WE puzzle for 11-5-95)
November 17, 1995Palendromes
November 18, 1995Addition Problem
December 1, 1995Smallest dying "life" group?
December 2, 1995Floating Prism Problem[Spoiler?]
December 3, 1995Vanishing Leprechaun
December 4, 1995ASK MARILYN
December 7, 1995Dense plane-coverings in Conway's "life".
December 8, 1995ASK MARILYN
December 9, 1995ASK MARILYN
December 9, 1995Geoboard squares [spoiler]
December 10, 1995Checkerboard Problem [more spoilers]
December 10, 1995Checkerboard Problem [more spoilers]
January 9, 1996Help wanted for 25 piece cube
January 19, 1996Doh. Monty hall problem...
January 20, 1996a puzzle I got for christmas
January 22, 1996Shortest Electric Cord
January 26, 1996SPOILER to math puzzle 6
February 2, 1996picture/design/engineering puzzle
February 4, 1996update to picture/design/engineering puzzle (corrected spoiler)
February 6, 1996update to picture/design/engineering puzzle (corrected spoiler)
March 8, 1996Solubility (was Re: FreeCell)
March 21, 1996NPR Sunday Puzzle for 17 March
March 26, 1996NPR puzzle for 3-24-96
March 28, 1996Programs that output themselves
April 3, 1996REPOST - the 0-1 necklace puzzle.
April 9, 1996Geometry problem.
December 10, 1996Toe-Tac-Tic problem?
December 11, 1996Toe-Tac-Tic problem?
February 5, 1997Question about Rubik's Cube Spoiler
February 26, 1997Segment bisection with compass alone.
March 26, 1997You're all jealous!!
April 12, 1997Puzzle : Striking off sticks.
December 15, 1997How many points (9 different queens...)
January 11, 1998n-rooks problem , n-bishops problem
January 14, 1998n-rooks problem , n-bishops problem (rook spoiler)
January 16, 1998(Oh no!) Still more dice...
January 23, 1998Nontransitive dice [ repost ]
January 8, 2000Two Envelopes: One has twice as much money as the other . . .
January 22, 2000Any one have an apple?
July 10, 2000Mikero's brainwrenching grid puzzle #4 (June 29, 2000)
July 20, 2000Mikero's brainwrenching grid puzzle #4 (June 29, 2000)
August 4, 2000Puzzle: Guards
October 18, 2001The man in the park
November 16, 2001Painting a cube
March 22, 2003Hot Dogs and coin flips
June 18, 2003random tic-tac-toe
June 29, 2003four bottles
October 19, 2003That's a switch!
October 26, 2003R = PI ohms
October 28, 2003R = PI ohms
April 2, 2004How much is Alice worth to Bob?
December 12, 2007Kinda real-world puzzle
December 13, 2007Kinda real-world puzzle
December 13, 2007Uniform Distribution of Points on The Surface of a Sphere
December 20, 2007Enigma 1446 - Crossed words
February 5, 2008Enigma 1470 - Dicey dice
February 22, 2008Enigma 1474 - Nativity places
February 22, 20081 3760 (spoiler and worse)
March 11, 2008Bluffing Androids
March 11, 2008Poor men paradox
March 14, 2008Enigma 1475 - Lines of thought
March 17, 2008Enigma 1475 - Lines of thought
March 19, 2008SuDoKu
March 26, 2008Dear Friends, do you know this puzzle, his history and solution?
June 6, 2008Partition a square into rectangles
July 31, 2008Hound Catches Rabbit
July 31, 2008Chess - What's the most non-pawn pieces...?
August 7, 2008Enigma 1499 - Not quite right
August 10, 2008Planarity
August 10, 2008Enigma 1499 - Not quite right
August 15, 2008A puzzling bedside story
August 15, 2008A puzzling bedside story
August 18, 2008Jack Doing Whole Job
August 18, 2008Partition a square into rectangles
August 18, 2008Hound Catches Rabbit
August 19, 2008Hound Catches Rabbit
August 21, 2008Enigma 1501 - Five sets at Wimbledon
August 27, 2008(again ?) Skolem-like puzzle sequence
August 27, 2008Range of a two-variable polynomial
September 2, 2008Line-Segments In Circle Game
September 25, 2008Enigma 1505 - Brief N-counter
September 26, 2008Homework
September 30, 2008Wind Around Solitaire
September 30, 2008Wind Around Solitaire
October 1, 2008Wind Around Solitaire
October 4, 2008Enigma 1505 - Brief N-counter
November 16, 2008What power of 3 is closest to a whole number of millions?
November 17, 2008What power of 3 is closest to a whole number of millions?
September 10, 2009Sqzuaring the Circle
September 10, 2009Two numbers
September 13, 2009Two numbers
December 15, 2009Integer right triangles
March 1, 2011Uniqueness of fractional part of square roots.
March 18, 2011Yet another sequence
March 24, 2011One Through Nine, With Eight Missing, And Two Ones
March 24, 2011One Through Nine, With Eight Missing, And Two Ones
March 29, 2011One Through Nine, With Eight Missing, And Two Ones
March 30, 2011One Through Nine, With Eight Missing, And Two Ones
March 31, 2011One Through Nine, With Eight Missing, And Two Ones
August 3, 2011Sum Of Products, Number Of Numbers Game
August 9, 2011cotpi 16 - Chessboard of averages
August 16, 2011cotpi 17 - Pawns
August 19, 2011Enigma 1654 - Tricky cards
August 19, 2011Enigma 1654 - Tricky cards
August 22, 2011cotpi 17 - Product