This is our "what's where" overview and "grand central" locator. Red squares are the major topics linked from the Home page (we call it the Index page). They appear here in about the same order as in the Index, with their individual contents also itemized. Comments in parentheses are annotations. Every link has somewhere to go. Within product sections you'll find many further highlight pages linked from individual products. Those are too numerous to list here.

Gamepuzzles defined (linked from masthead)

• (Kadon's trademark)
• Some look like puzzles
• Some look like games

The Fast Lane (quick overview for first-time visitors)

Gallery Showroom (link to Product Index)

The Puzzle Parlor — play online (sorry, temporarily inactive)

The Life of Games — an exploratory journal

• Index
• Issue No. 1 — 1999
• Issue No. 2 — 2000
• Issue No. 3 — 2004
• Issue No. 4 — 2007

The Caranza Collection (the music of Meistersinger, Patric Hale)

Coloring Book — art you paint (interactive meta-graphics)

• "Duality" variations
• Thumbnail gallery
• Ordering information
• .GIF Template
• Flash Template

Emmy-winning Video (4-minute segment from Maryland Public Television)

Children's Stories (illustrated)

• The Green Monster by Warren Fahy
• Carl the Genius by Warren Fahy (interactive mystery maze)
• The Rainbow Cannon by Robert Vermillion

New stuff (as of latest revision date)

• New topics
• (Links to latest additions or changes, overhauled monthly.)
• Links to our online hot stuff/videos

FAQ — Frequently Asked Questions (and the answers)

Site features

• Icons (our hot links lexicon, with hidden surprises)
  
• Graphics (what you see is what you get)
• Getting around (site organization and navigation tips)
• Our Logo Movie (Flash animation of our logo as dancing pentominoes)
• The Fast Lane (quick tour for first-time visitors)
• Puzzle Parlor (online play of selected puzzles, temporarily inactive)
• Memory Matching Games (online play of matching hidden pairs)
  ....Pentominoes Memory Game
  ....Hexiamonds Memory Game
  ....Diamond Rainbow Memory Game
  ....Bear Hugs Jr. Memory Game
  ....Six Disks Memory Game
  ....Rombix Jr. Memory Game
  ....Multimatch-I Memory Game
  ....Multimatch-II Memory Game
  ....Beach Vacation Memory Game
  ....Joy for Kids Memory Game
  ....25th Anniversary Memory Game
  ....Christmas Memory Game
  ....Looney Pyramids Memory Game
  ....Logo-happy Memory Game (from a secret link)
  ....Animal Memory Game (from a secret link)
  ....Mountaineers Memory Game (from a secret link)
  ....Dancing Memory Game (from a secret link)
  ....Numbers Memory Game (from a very secret link)
  
• Other Amusements (ours and others'*)
  ....7 x 7 = 7
  ....10x10 Latin Square
  ....11 Magic Cubes
  ....Alphabest
  ....Annigrams
  ....Arc Angles, tightest loop
  ....Berkshire 9x9
  ....Big-Game Hunt (from a secret link)
  ....Celebrating LXX
  ....Chicago 7x7
  ....Cornucopia
  ....Double Entendre
  ....Flower Garden Game
  ....G = 7
  ....Logo matchstick puzzles
  ....Logo maze puzzle
  ....Logo path puzzle
  ....Magic '8'
  ....Magic Heptominoes
  ....Martin 6x6 Sudoku/Slide
  ....The Octo Clock
  ....The Octo Maze
  ....OHIO Sixteen
  ....The Prague Czecherboard
  ....The Star-9 Challenge
  ....The Three-Squared Challenge
  ....Word Pingpong
  ....Wyandotte 50th Anniv.
  ....Logo Dances (from 5 secret links)
  ....Wanna Play? Links Maze Puzzle (from a secret link)
  
  ....AlienTiles*
  ....Battlestones*
  ....Caboodle*
  ....Entanglement*
  ....Grand Tour* (from a secret link)
  ....Jigolla*
  ....PathPix*
  ....Pentolla*
  ....Planarity*
  ....Puzzle Express*
  ....Q Game*
  ....SquareMatch*
  ....Tetrapentos*
  ....U.S. Map* puzzle
  
• Archives of our history
  
• Coloring Book (art you paint online)
• The Life of Games (an exploratory online journal)
• Emmy-winning Video (4-minute short subject)
• Children's Stories (illustrated, one interactive)
• Other special attractions (also linked from homepage)
  ....New stuff
  ....FAQ page
  ....Site Features (self-referential)
  ....How to order
  ....Site Map (you are here, so don't go there)
  ....Who we are
  ....Show schedule
  ....Resources
  ....Mascot
  ....Contests
  ....Mini-Quiz
  ....Flip catalog
  ....Print catalog
  ....Maryland Renaissance Festival
   — Marketplace postings
   — Renaissance catalog (.pdf, 4MB)
  ....Contact us
  ....Search Index
  
• Who did it (website design credits)

How to order

• Selecting your purchases
  
• Viewing your order
  
• Privacy policy
  
• Payment methods
  
• Shipping costs
  
• Oversize packages
  
• Undersize packages
  
• Preferred shipping method
  
• Sales tax
  
• Secure server
  
• Order form description
  
• Replacement parts
• Print catalog
• Gift certificates
• Giftwrapping

Site Map (you are here)

Who we are, what we do (2 pages)

• The People
  ....Kate Jones, an authorized biography
   — Retrospective 2014 (PowerPoint)
   — The Golden Jubilee 2020
   — Meta-graphics
  ....Dick Jones, Chairman of the Board
  ....Longtime helpers
   — Eric Bare, artwork
   — Eric Bare, poems
   — Eric Bare, wedding
   — Eric Bare, wedding souvenir
   — Eric Bare, in memoriam
  ....Headquarters
   — Snows of 2006
   — Blizzards of 2010
   — Blizzard of 2016
  
• The Philosophy
• Product Line
• Logo
• Trademarks
• Licensing
• Marketing
• Manufacturing
  ....Acrylic colors: opaque, transparent, frosted mirror, marbled
  ....Our favorite suppliers (with links or data)
• Awards we've bestowed
  ....Gamepuzzles Annual Pentomino Excellence award
   — The 2004 award
   — The 2005 award
   — The 2006 award
   — The 2007 award
   — The 2008 award
   — The 2009 award
   — The 2010 award
   — The 2011 award
   — The 2012 award
   — The 2013 award
   — The 2014 award
   — The 2015 award
   — The 2016 award
   — The 2017 award
   — The 2018 award
   — The 2019 award
  ....Gamepuzzles Originality, Perseverance and Leadership Salute
   — The 2005 salute
   — The 2009 salute
   — The 2015 salute
   — The 2018 salute
   — The 2021 salute
  ....Competition Prizes
   — 50th Pentomino Challenge
   — The Ten-Yen 3-Layer Problem
   — Doris Championship 2012
   — Doris Championship 2013
   — Doris Championship 2014
   — Doris Championship 2015
   — Doris Championship 2016
   — Doris Championship 2017
   — Doris Championship 2018
   — Doris Championship 2019
  ....Special Awards
   — 50th Anniversary, Kathe Wohlfahrt
   — 35th Anniversary, Maryland Renaissance Festival
   — 40th Anniversary, Maryland Renaissance Festival
  
• Prizes, honors and awards we've won
  ....Caribbean Cruise with AGPC, 2010
  ...."Symmetrical Pentomino Pairs" (5-page journal article, 2015)
  ....Apollo Award 2017 (aesthetic category for MiniMatch-I)
  ....Archimedes Award 2018 (first place for Ochominoes)
  ....Archimedes Award 2019 (first place for StarHex-I)
  
• International Puzzle Parties, since 1983
  ....International Puzzle Party, Belgium, 2002
  ....International Puzzle Party, Helsinki, 2005
  ....International Puzzle Party, Boston, 2006 (2 pages)
   — Boston T-Party Puzzle
  ....International Puzzle Party, Australia, 2007
   — Australian Adventure
   — Sudo-Koala
  ....International Puzzle Party, Prague, 2008
   — Prague Summer
   — The Prague Czecherboard Puzzle
  ....International Puzzle Party, San Francisco, 2009
   — Travelogue (8000-mile drive) (3 pages)
   — The Lombard Loops Puzzle
  ....International Puzzle Party, Berlin, 2011
   — The Berlin Wall Puzzle
  ....International Puzzle Party, Washington DC, 2012
   — The Liberty Cubes Puzzle
  ....International Puzzle Party, London, 2014
   — Escape the Plague
  ....International Puzzle Party, Ottawa, Canada, 2015
   — Maple Leaf Rag
  ....International Puzzle Party, Paris, France, 2017
   — Let them eat cake
  ....International Puzzle Party, San Diego, California, 2018
   — 38=12
  
• Gathering for Gardner, Atlanta, since 1994
  ....G4G7, 2006
   — G = 7
   — 7 x 7 = 7
   — Magic Heptominoes
   — Raymond Smullyan and friends
  ....G4G8, 2008
   — "Philosophy Revisited:  8 Great Memes" (.pdf file, 434K)
   — The Octo Clock
   — Magic '8'
   — The Octo Maze
   — The Dome Ascent
  ....G4G9, 2010
   — "Nine Fine Lines of Thought"
   — The Three-Squared Challenge
   — The Star-9 Challenge
  ....G4GX, 2012
   — "Ten powerful thoughts iambically defined"
   — "Ten powerful thoughts..." (.ppt file, 373K)
   — Bowties—cut out 10 pieces and play (.pdf, 199K)
  ....G4G11, 2014
   — "11 Unexpected Parallels"
   — 2013 Gamepuzzles Annual Pentomino Excellence award
   — GAPE 2013 puzzle pieces, cut out and play (.pdf, 97K)
   — 11 Magic Cubes—cut out and play (.pdf, 150K)
  ....G4G12, 2016
   — "Twelveness, a Fib verse" (PowerPoint)
   — Twelveness, a Fib verse (text only)
   — Twelveness, a Fib verse (text and pictures)
   — Renaissance catalog
  ....G4G13, 2018
   — "Lucky 13 presentation" (PowerPoint, visuals only)
   — Lucky 13 poem (text only)
   — Lucky 13 brochure (20 pages, text and pictures)
  ....G4G14, 2020 (postponed to 2021, virtual events)
   — G4G fundraiser video (6 minutes, voice-over and pictures)
  
• Celebrations of Mind
  ....October 21, 2012 (.pdf file, 428K)
  ....October 20, 2013
   — "Martin" name puzzle, cut out and play (.pdf, 223K)
  ....Gardner Centennial, October 19, 2014
   — "100" Latin Square, cut out and play (.pdf, 269K)
  ....October 24-25, 2015
   — About Martin
   — BuzzBears spinners 2015
  ....October 22-23, 2016
   — Twelveness (text only)
   — BuzzBears spinners 2016
  ....October 21-22, 2017
   — "Dissection Puzzles: The Art of Combinatorics"
  ....October 20-21, 2018
   — "When are you?" (time travel tales)
  ....October 19-20, 2019
   — "25 Cakes Challenge" (pentomino/sudoku puzzle)
  ....October 21, 2020
   — "Martin Gardner Word Puzzle and Symmetry Challenge"
   — "A Periodic Table of Polyform Puzzles"
  ....March 21, 2021
   — "A Periodic Table of Polyform Puzzles" (G4G YouTube)
  
• Bridges Conferences
  ....2015, University of Baltimore, Baltimore, MD
   — "Singularity to Infinity" (poem)
  ....2016, University of Jyvaskyla, Finland
   — "Twelveness" (Fibonacci verse)
  ....2017, University of Waterloo, Canada
   — "Stomachion, the Quest" (poem)
   — "The Surprising Versatility of Edge-Matching Sets" (presentation)
  ....2017, JMM, Atlanta, GA
   — "Love Mathematics" (Fibonacci verse)
  ....2019, JMM, Baltimore, MD
   — "Math Limericks"
  ....2019, Bridges, Linz, Austria
   — Conference exhibit, talk, and Family Day
   — "The Surprising Symmetrical Pairs of Ochominoes" (presentation text)
   — "The Surprising Symmetrical Pairs of Ochominoes" (illustrations)
  ....2020, Bridges, virtual conference online
   — "The Playable Art of Kate Jones" (online conference archival showcase)
  

• Praise and fanmail
• In the media
  ....Interview with Kate Jones, 2005
  ....Interview with Kate Jones, 2019
  ....Interview with Kate Jones, 2020 (pages 4-7)
  ....Video of Kate Jones on 40th Anniversary of Rubik's Cube (20:12-26:12)
  ....Video by Kate Jones for G4G Fundraiser, October 2020
  ....Video by Kate Jones, "A Periodic Table of Polyform Puzzles" for G4G, 2021
  ....Video by Kate Jones, "Sweet Symmetries" at Symmetry Festival 2021
  ....Video by Kate Jones, "StarHex-14" at G4G14, Atlanta 2022,
  and Bridges 2022, Aalto, Finland
  
• The future
• Contact us

Show Schedule

• Where to see us (with links to event organizers)
• Our new tent
  ....Our retired wood booth
• Our new van
• U.S. Map* puzzle
• Hold On! (poem)
• Cold Spell (poem)
• Battling the Wind (poem)
• Amish Acres, 2012 (photos)
• Wayzata Disastah (poem)
• The Fourth River (poem)
• Maryland Renaissance Festival's 35th Anniversary
• Maryland Renaissance Festival's 25th Anniversary
• 50th Anniversary puzzle for Three Rivers Arts Festival
• 40th Anniversary puzzle for Syracuse Arts and Crafts Festival
• Sudoku/sliding block puzzle honoring our Cleveland shows
• Sudoku/sliding block puzzle for 10th Annual Berkshires Art Festival, 2011
• Sudoku/sliding block puzzle designed for North Michigan Avenue's 20th annual art festival, 2011
• Sudoku/sliding block puzzle for Wyandotte's 50th Street Art Fair, 2011
• 30th Anniversary puzzle for Verona, NJ, Annual Fine Art and Crafts Festival, 2015
• 30th Anniversary puzzle for CHAP homeschooling convention, 2016
• 50th Anniversary of Artsfest of Greater Harrisburg, 2017
• 30th Anniversary of Brookdale, NJ, Fine Art and Crafts Festival, 2018
• 45th Anniversary of Greensboro Craftsmen's Christmas Classic, 2018
• Artist's Statement, "The playable art of Kate Jones"

Resources (links to other good stuff)

• Publications of interest
  
• Game and puzzle catalogs
  
• Game and puzzle sites
  
• The game of ideas
  ....Scale (poem by Kate Jones, April 2012)
  
• The Caranza Collection—Meistersinger Patric Hale
• Flashes of Life—photography by Bob Steinberger, poems by Kate Jones
• Kaleidoscopes by Charles Karadimos
  

Our honorary Mascot

• Joy for Kids Memory Game

Contests

• Bricks (downloadable sliding puzzle challenges from a German website)
  
• Pentomino Competitions (a Belgian site, in English, with prizes for top scores)
• Kadon contests (unsolved problems, open to the world)

Mini-Quiz (with hidden answer)

• Current Quiz
• Solvers' List
• Archives
  ....#1:  "Polyominoes"
  ....#2:  "Lewis Carroll"
  ....#3:  "Sweet Sixteens"
  ....#4.  "Tic Tac To"
  ....#5.  "It's in the Bag"
  ....#6.  "Who Owns the Zebra?"
  ....#7.  "The Planet Logicia"
  ....#8.  "Diamond Mine"
  

Animated flip version of our 24-page Print Catalog

24-page Print Catalog (downloadable .pdf files)

Maryland Renaissance Festival (tour Ye Olde Gamery)

• Ye Olde Gamery
• Original booth
• Staff group photo
• Sample page, Renaissance catalog
• 40-page Renaissance catalog
• 2020 season virtual marketplace posters

Grand Tour (start here to loop through the entire gamepuzzles gallery)

• First stop is the "Hottest Sellers" section
• Scroll down or click "Next" buttons to advance down each page
• Click on portals or "Continue" buttons at each section bottom to visit the next section
• (Psst—find a secret button to play a different kind of Grand Tour puzzle)

We belong (links to service organizations and web rings)

Contact us

• By email
• By snailmail
• By phone/fax
• At shows

Search us (thumbnail galleries or showcases of gamepuzzles indexed by type)

• Index types
  Alphabetical listing (no pictures)
  Indexed by price (no pictures)
  ....Gift Certificates
  ....Special or Limited Editions
  ....Oversize Package Surcharge
  ....Undersize Package Discount
  ....A statement of policy
  Date of first publication, alphabetical (no pictures)
  Chronology of publication (no pictures, no links)
  ....Historical notes, 1982, "The first wave of growth"
  ....Historical notes, 1983, "The lesson of quality"
  ....Historical notes, 1984, "Some things old, some things new"
  ....Historical notes, 1985, "Guests and clones"
  ....Historical notes, 1986, "Thinking big... and bigger"
  ....Historical notes, 1987, "Growing three ways"
  ....Historical notes, 1988, "Compounding complexity"
  ....Historical notes, 1989, "Grand visions"
  ....Historical notes, 1990, "Herculean heights"
  ....Historical notes, 1991, "Happy marriages"
  ....Historical notes, 1992, "Diamonds forever"
  ....Historical notes, 1993, "Opulence of acrylic and wood"
  ....Historical notes, 1994, "Angles, gold and gala"
  ....Historical notes, 1995, "Tilting towards tilings"
  ....Historical notes, 1996, "Gorgeous geometrics"
  ....Historical notes, 1997, "Big and little"
  Archives of our history (no pictures)
  Site Map (no pictures) — you are here
  Search Index — indexed by type (no pictures)
  ....Word Pingpong
  25th Anniversary index (no pictures)
  Print catalog index (no pictures)
  
  
• The mostest
  Newest releases
  Our 25 greatest hits (25th Anniversary list)
  Hottest sellers
  Games Magazine selects
  
  
• For the people
  For youngest players (age 3-8)
  The hardest ones (teen-adult)
  For the visually impaired
  For 3 or more players
  Homeschooler resources
  Gift certificates
  Replacement parts
  
  
• Special editions
  Treasured oldies—out-of-print goodies return
  Collectors' editions, signed and numbered
  Limited editions, vanishing species
  Bearlin Variations
  Boston T-Party puzzle
  Cubic Rube
  Escape the Plague maze puzzle
  Jacques Ferroul's Poly-Spidrons
  Jacques Ferroul's Stelo
  Jacques Ferroul's Tetrapentos and Pocket Tetrapentos
  Erich Friedman's meta-dissection Partridge Puzzles
  Erich Friedman's Rolling-Block Maze
  Grand Multimatch I
  Hexagonal board, order-8, vinyl
  Hex board, order-14, wood
  Kolossal Pyramid, 25th Anniversary edition (in 2011 only)
  Let them eat cake, pentomino sudoku puzzle
  Logo puzzles, custom-designed
  ....20th anniversary logo puzzle, Kadon
  ....25th anniversary logo puzzle, Kadon
  ....25th anniversary puzzle, Md. Renaissance Festival
  ....30th anniversary puzzle, Kadon
  ....30th anniversary puzzle, Verona
  ....35th anniversary puzzle, Kadon
  ....40th anniversary puzzle, Syracuse
  ....40th anniversary puzzle, Carolina Craftsmen
  ....40th anniversary puzzle, Maryland Renaissance Festival
  ....50th anniversary puzzle, Pittsburgh
  ....50th anniversary puzzle, Harrisburg
  ....SIAM 50th anniversary logo puzzle
  ....Double Entendre word puzzle
  Lombard Loops build a path
  Maple Leaf Rag, Canadian dissection puzzle
  Memory Bank 40-year commemorative archival sets
  Ed Pegg Jr.'s 37-Squares puzzle
  Ed Pegg Jr.'s Octiamond Stack
  Henri Picciotto's Polyarcs puzzle
  Quintachex inlaid wood chessboard
  Round Tuits, deluxe decorator art
  Spin-a-Spell Halloween Twirlers
  Specialty bears
  ....BuzzBears Dexterity Spinners
  ....Twirl-a-Spell Maya No-End Disks
  Surprising Pyramid
  Volcano Boards, Looney Labs' BIG sizes
  Zdravko Zivkovic Collection
  
  
• Unique attributes
  Three-dimensional games and puzzles
  Tic-tac-to themes...lining them up
  Games and puzzles made of wood
  Pocket puzzles
  What you can buy for $25
  
  
• Mainly games, mainly puzzles
  Abstract strategy games
  Historical games (real and fictitious)
  Puzzles, only puzzles
  
  
• Classic combinatorials
  Edgematching by color or shape
  Pentagonal tilings (Penrose, etc.)
  Polyforms (all the standards plus a few fancies)
  Polyominoes and polycubes
  
  
• Artistry
  The Rusticana Collection (mixed-media art pieces)
  Tactile Graphics (larger art pieces)
  Tilings and designs (tessellations)
  Kaleido-Matrix gameboards (gorgeous grids)
  Flashes of Life (book of photos and verse)
  
  
• Our other domain names
  www.tactilegraphics.us
  www.playable-art.com
  www.polyformpuzzles.com
  www.thelifeofgames.com
  www.hexdominoes.com

Archives of our history

• Chronology of publication
• Date of first publication, alphabetical
• Who we are, what we do
• Introduction to Polyominoes (background and history)
• Awards we've bestowed
• Awards we've won
• International Puzzle Parties (puzzle designs and travelogues)
• Gatherings for Gardner (and contributions)
• 20th Anniversary Logo Puzzle (2000)
• 25th Anniversary Logo Puzzle (2005)
• A Quarter-Century Retrospective (1980-2005)
• 25th Anniversary Celebration index (with 25 special artifacts)
• 30th Anniversary Commemorative Puzzle (2009-2010)
• 30th Anniversary Party (2010)
• Maya End-of-World Survival Party (2012)
• International Pi Day, 3.141592653... (March 14, 2015, 9:26AM)
• 35th Anniversary Commemorative Puzzle (2014-2015)
• 35th Anniversary—"Party of the Century" (2014)
• 40th Anniversary "XL" Pasadena Party (2019)

• Annual Newsletter, 2009
• Annual Newsletter, 2010
• Annual Newsletter, 2011
• Annual Newsletter, 2012
• Annual Newsletter, 2013
• Annual Newsletter, 2014
• Annual Newsletter, 2015
• Annual Newsletter, 2016
• Annual Newsletter, 2017
• Annual Newsletter, 2019
• Annual Newsletter, 2020
• Annual Newsletter, 2021

• New Year message 1, 2011
• New Year message 1, 2012
• New Year message 1, 2014
• New Year message 1, 2015
• New Year message 1, 2016
• New Year message 1, 2017
• New Year message 1, 2018
• New Year message 1, 2019
• New Year message 1, 2020
• New Year message 1, 2021
• New Year message 1, 2022
• New Year message 1, 2023
• New Year message 2 (seasonal)
• New Year message 3, 2011
• New Year message 3, 2012
• New Year message 3, 2013
• New Year message 3, 2014
• New Year message 3, 2015
• New Year message 3, 2016
• New Year message 3, 2017
• New Year message 3, 2018
• New Year message 3, 2019
• New Year message 3, 2020
• New Year message 3, 2021
• New Year message 3, 2022
• New Year message 3, 2023
• New Year message 3, 2024

• Chronology of Renaissance Festival posters, 2020-2021
• Chronology of email flyers, 2020-2021
• Chronology of social media posts, 2021
• Archive of limited-edition offers

• 1982:  The first wave of growth (2007)
• 1983:  The lesson of quality (2008)
• 1984:  Some things old, some things new (2009)
• 1985:  Guests and clones (2010)
• 1986:  Thinking big... and bigger (2011)
• 1987:  Growing three ways (2012)
• 1988:  Compounding complexity (2013)
• 1989:  Grand visions (2014)
• 1990:  Herculean heights (2015)
• 1991:  Happy marriages (2016)
• 1992:  Diamonds forever (2017)
• 1993:  Opulence of acrylic and wood (2018)
• 1994:  Angles, gold and gala (2019)
• 1995:  Tilting towards tilings (2020)
• 1996:  Gorgeous geometrics (2021)
• 1997:  Big and little (2022)
• 1998:  Boards and beauties (2023)
  

Our Facebook page — Gamepuzzles

Kate's blogs

• "Kate's Takes" at Blogspot from a secret link
  ...Musings on Valentine's Day
  
• Meme Hunter
  
• "Puzzlelady" at Dreamwidth from a secret link
  
• "Puzzlelady" on Facebook
  
• "Gamepuzzlelady" on Twitter

(Copyright notice, technical comments)

(Our other domain names)

• www.tactilegraphics.com
• www.playable-art.com
• www.polyformpuzzles.com
• www.thelifeofgames.com
• www.hexdominoes.com

Our Great Array  (linked thumbnails of all our products—keep scrolling right)

• Tilings, polyforms, edgematching sets, the Pentagon Universe
• Wooden boardgames, brainteasers, Tactile Graphics, Rusticana sets