February 12th of this year, Oskar van Deventer presented his 17x17x17 Cube puzzle at the New York Puzzle Party Symposium. The Guiness Book of World Records has now acknowledged this officially as a world record.
http://www.youtube.com/watch?v=Hz43QuMyEzM
I was extremely happy and honored that Oskar asked me to write a 'witness letter' to the Guiness people. And now it's official!
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