The Greek cross
Trascinate i 4 esagoni colorati uguali per formare una croce greca.[br][br]vedi: [i]Henry Ernest Dudeney[/i] [b]Amusements in Mathematics[/b][br][url]http://www.gutenberg.org/ebooks/16713?msg=welcome_stranger#DISSECTION_PUZZLES[/url]
The Greek cross
Information: The Greek cross