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Puzzle crafting & workshops • Laboratorio di giochi d'ingegno • Atelier de puzzles
by Gianni A. Sarcone & Marie-Jo Waeber
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Crystal SkullThe 13th Magic Crystal Skull
Creator/designer: Gianni A. Sarcone

Missing square puzzle: paradosso dell'area scomparsa (It), paradoxe du coin (Fr), paradoja del cuadrado perdido (Sp), Fehlendes-Quadrat-Rätsel (Ger), paradoxo do quadrado perdido (Por), wigparadox (Du), задача о разрезанном треугольнике (Ru), 失踪的正方形 (Ch), أحجية المربع المفقود (Ar).

Vanish puzzle - difficulty level bulbbulb
Reproduce the 'Crystal Skull Puzzle' below and cut out the 4 pieces along the blue cutting lines...

13 crystal skulls

Then rearrange the pieces in order to fill the hole within the rectangular puzzle with a 13th crystal skull. Apparently, it seems impossible! But the explanations given in this video prove just the opposite:

The final challenge is to understand why and how this thrilling puzzle works...
This vanish puzzle has been created to illustrate a concept in the book "2012, è in gioco la fine del mondo" by Mariano Tomatis.

francais flag Reproduis le casse-tête rectangulaire, dit des 13 crânes, et découpe les 4 pièces en suivant les traits de coupe. Puis, réarrange toutes les pièces du puzzle en les juxtaposant de façon à remplir le trou avec un treizième crâne. Impossible? Regarde donc la vidéo... italian flag Riproduci il puzzle dei 13 teschi e ritagliane i 4 pezzi lungo le linee di taglio. Quindi, riordina tutti i pezzi del puzzle in modo da colmare il buco con un tredicesimo teschio, facendo combaciare tra di loro i lati dei pezzi. Impossibile? Guarda il video (versione italiana del video)...

Crystal Skull Card
Buy now your Crystal Skull Puzzle
Creative Commons License
The 13th Magic Skull by Gianni Sarcone is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License.
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Archimedes journal ARCHIMEDES journal is an interactive review devoted to entertaining & involving the readers with puzzles, recreational mathematics and visual creativity. This journal is published for an audience without a specific math background. Each issue covers a broad range of mental and hands-on activities for the reader to enjoy! Workshop image "How to focus attention? Encourage creative exploration?" Multicultural interactive puzzle activities & workshops for museums and institutions.
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