Helicopter Cube (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Helicopter Cube" in Spanish language version.

refsWebsite
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fan2cube.fr (Global: low place; Spanish: low place)

jaapsch.net (Global: low place; Spanish: low place)

puzzleforge.com (Global: low place; Spanish: low place)

schwandtner.info (Global: low place; Spanish: low place)

puzzles.schwandtner.info

  • Goetz Schwandtner. «Helicopter Cube white». Extremely Puzzling. Consultado el 1 de septiembre de 2010. «Designed by: Adam Cowan». 

tomvanderzanden.nl (Global: low place; Spanish: low place)

  • Tom van der Zanden. «Curvy Copter». Consultado el 1 de septiembre de 2010. «The Curvy Copter is my most popular puzzle yet. It is a variation on Adam G. Cowan's Helicopter Cube.»