Blindfolded solving (abbreviated BLD) is the discipline of memorizing the position a puzzle is in and then solving it without looking at it again. The times for these events must include both the memorization stage and the solving ('execution') stage.
Speedsolving Wiki (https://www.speedsolving.com/wiki/index.php/Blindfolded_Solving)
Guess the current World Record (as of Aug. '15)?
Cool, One-handed goes to Jehova.
A lot of Greeks take nuts.
Let's play Soccer.
This isn't a lot.
In fact, this is an average memorization for solving a cube blindfolded.