| Janos Kovacs, brand manager for Rubik 
				Enterprises, says one of the models has an improved mechanism 
				which can be customized by competitors to make the sides of the 
				cube turn easier, while another of the mechanical puzzles 
				invented by Hungarian Erno Rubik has sets of geometrical shapes 
				on the cube faces so it can be solved by blind people.
 				Kovacs says the new models "are an opportunity to squeeze out 
				the Chinese counterfeits from the market."
 				The models were presented at the 2013 Hungarian Open ending 
				Sunday, in which competitors raced to solve cubes with their 
				feet, with one hand or while blindfolded. [Associated 
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