The Collaborative International Dictionary
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.
Wiktionary
n. A pentagram, so called for its resemblance to five alphas superimposed at different rotations.
Wikipedia
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.
The puzzle is used as a confidence trick in Mexico, where it is known as estrella mágica.
Usage examples of "pentalpha".
It is expressed by the five-pointed or blazing star, the mysterious Pentalpha of Pythagoras.
Star, magical adored under name of Remphan, 103-u Star of five points originated from the Pentalpha of Pythagoras, 634-m.