Puzzle whizzes gathered in Yangzhou, east China, on Sunday for an international Rubik’s cube tournament. They were challenged in speed and blindfolded disciplines to solve the fiendish puzzles. /VCG Photo

The competitors came from China, Peru, the Netherlands and Russia, including the Chinese player Lin Kaijun, who is now the world number three and holder of multiple world records in the 3x3x3 Blindfolded Single Category. /VCG Photo

The tournament was open to everyone, with the organizers hoping to make the niche sport known to more people. /VCG Photo