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Puzzles and
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Since 1997

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 small square Puzzles, Tests, Math games, Brain-teasers, Tangram-like manipulatives, Mental tricks...

Introduzione Magic experiments Do-it-yourself puzzle Fantastic Optical Illusions Perpetual calendar Knight's tour Vanish puzzle Prime finder About Math and Puzzles Weekly optical illusion features Puzzle Shop Fraction patterns Nine Dot problem Friends Numberopedia Puzzle activities & workshops Sponsor Curiopticals Laboratori Sitemap Cards Books Mastermind Workshops Pencil games What are you looking at TangraMagic Ostomachion FantaLogica Sudoku-like puzzles Illusions & Paradoxes Puzzle content for publishers Oddities & Curiosities Droodles Fibonacci numbers Create your own puzzle Best Teacher Monthly Puzzle Archimedes' Journal Latin wordplays Our Philosophy & Goals Alcuin's puzzles Tangram Puzzillusions Weekly features About us Five Room House Double-W puzzle Etymology of the word puzzle Abracada-brain Einführung Rules to Puzzle Solving Life Game Contact Mind & Brain

Archimedes Merchandising is a volunteer-driven initiative. We rely on donations to achieve our mission - to inspire and motivate people with challenging mental activities.

Introduzione italiano Introduction francais Einführung deutsch  
Puzzles: rompicapo (It), casse-tête (Fr), rompecabezas (Sp), Denk- und Knobelspiele (Ger), quebra-cabeça (Por), breinbrekers (Du), hlavolamy (Cz), головоломки (Ru), חידה (He), σπαζοκεφαλιά (Gr), 智力游戏 (Ch), パズル (Jap).

Train your brain with clever puzzles!
  We believe that you came to this braintainment site because you love doing puzzles and brain teasers and that you enjoy wrestling with logic and geometry problems. You lucky folks, research says it's good for you; brain games and mental activities keep your brain young and active. Think about it: even though the brain comprises only about 2% of the total body weight, it receives 15-20% of the body's blood and oxygen supply. And that means a lot!

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bouncing ballNEW! Take a visit to our amazing Puzzle Archive. The biggest puzzle and brainteaser collection!
small tangramagicTangraMagic: the new Tangram puzzle with a touch of magic that will surprise your intellect and challenge your creativity! small eggMost wanted puzzle solutions: Nine Dot problem, Five Room House brainteaser, Double-W puzzle.
small pencilWork out our latest intriguing Pencil games of the month  Knight tourChallenge new Knight's tour puzzles & graphs
abracadrain puzzlesResolve our Abracada-brain twisters (En, It, Fr, Es) pix gamesWeekly 'paint by number' and Sudoku-like puzzles

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trick to performPerform online Magic experiments FibonacciInvestigate the Fibonacci numbers on your PC
tangram puzzleFace original mind challenges of the Tangram puzzle ostomachionDiscover Latin wordplays or the Ostomachion
Paradoxical trianglesFigure out how the magic Vanish puzzle works free puzzle sampleDownload our free Do-it-yourself puzzle (PDF)
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Browse our top puzzle resources
arrow Boost your imagination by solving Droodles arrow Work out the Alcuin's puzzles in the original Latin!
arrow Check any prime number with our Prime finder arrow Simulate artificial life with Life Game cellular automaton
arrow Find the day for any date with the Perpetual calendar arrow Wonder exactly what the etymology of 'Puzzle' is?
arrow Rediscover the Monty Hall Dilemma! arrow Explore some curious Fraction patterns
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Challenging online games ready to play
Connect4 MasterMind Solitaire 15 puzzle Nim puzzle Reversi/Othello Dominoes Flippo
Connect4 MasterMind Solitaire 15Puzzle Nim Reversi Domino Flippo
Puzzles to purchase Postcards to purchase Book store Gianni Sarcone
A large collection of brain teasers and mechanical puzzles for you to solve or to offer and challenge your friends and family.
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Find unique merchandise with our puzzles and optical illusion art on posters, postcards, t-shirts, mugs, and more.
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A great selection of compelling books that keep you amused for hours and that help develop logic as well as critical thinking skills!
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Meet G. Sarcone, the author of Archimedes Lab, on his website dedicated expressely for publishers & content acquirers seeking original publishing and editorial projects.
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Puzzles & mental activities that enhance critical and creative thinking skills


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