Pentalpha

Pentalpha

Pentalpha is a puzzle where the goal is to place nine stones on the ten intersections of a pentagram. The following rules need to be obeyed when placing the stones:
#The stone has to visit two other points before reaching its final point.
#These three points have to be next to each other.
#The points have to be in a straight line.
#The first and third (final) points are not allowed to be occupied, the second point is.

olution

The solution to Pentalpha can be found for any starting point using the following algorithm:
#Choose a node X.
#Travel two nodes in a straight line to node Y.
#From node Y, place a stone at node X.
#Let node Y be the new node X.
#Repeat step 2-4 until the puzzle is solved.


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Look at other dictionaries:

  • Pentalpha — Pen*tal pha, n. [NL., fr. Gr. ?: cf. F. pentalpha. See {Penta }, and {Alpha}.] A five pointed star, resembling five alphas joined at their bases; used as a symbol. [1913 Webster] …   The Collaborative International Dictionary of English

  • Pentalpha — Pentalpha, s.u. Drudenfuß …   Pierer's Universal-Lexikon

  • Pentalpha — Pentalpha, s. Drudenfuß …   Meyers Großes Konversations-Lexikon

  • Pentálpha — (grch.), s. Drudenfuß …   Kleines Konversations-Lexikon

  • pentalpha — (entrée créée par le supplément) (pin tal fa) s. m. Terme d antiquité. Figure composée de cinq alphas, pentagone sur les côtés duquel sont des triangles isoscèles. •   Au centre du sceau, on voit une grande étoile à cinq pointes, le pentalpha,… …   Dictionnaire de la Langue Française d'Émile Littré

  • Pentalpha — Abbild eines Pentagramms Das Pentagramm (griechisch pentágrammos: mit fünf Linien) oder Fünfstern ist ein fünfeckiger Stern, der sich ergibt, wenn die Diagonalen eines regelmäßigen Fünfecks nachgezogen werden. Eine ebenfalls mögliche Bezeichnung… …   Deutsch Wikipedia

  • pentalpha — /pen tal feuh/, n. pentagram. [1810 20; < Gk péntalpha (see PENT , ALPHA); so called from the A represented at each point] * * * …   Universalium

  • pentalpha — noun A pentagram, so called for its resemblance to five alphas superimposed at different rotations. Syn: pentagram, pentangle …   Wiktionary

  • Pentalpha — Pent|ạl|pha 〈n. 15〉 = Pentagramm [<grch. pente „fünf“ + alpha „der a Laut des grch. Alphabets“] * * * Pen|tạl|pha [auch: pɛnt |alfa], das; , s [in dem Stern sind fünf α (↑Alpha) zu erkennen]: Pentagramm …   Universal-Lexikon

  • Pentalpha — Pent|ạl|pha auch: Pen|tạl|pha 〈n.; Gen.: , Pl.: s〉 = Pentagramm [Etym.: <Penta… + Alpha] …   Lexikalische Deutsches Wörterbuch

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