American speedcuber Graham Siggins recently attempted to solve 300 cubes blindfolded, he has previously attempted 250 and finally decided to go a bit further and attempt 300 cubes. Solving one cube blindfolded is very impressive to most people, but to solve 300 cubes blindfolded is basically ridiculous, I suspect most non-cubers will simply think it is fake.

In the early days of the World Cube Association, there was no time limit in multi-blind but by 2009, organisers were growing increasingly aware that it would be impossible to reliably schedule the event without a limit as people would try and attempt more and more cubes. They then introduced a one hour time limit. Graham Siggins himself holds the current world record of 62 cubes solved out of 65 within the hour.

Multi-blind scoring works by subtracting the number of cubes solved by the number of cubes unsolved. In his official world record, he achieved 59 points as he solved 62 successfully but failed to solve 3 of the cubes he attempted.

For his unofficial 'old-style' attempt, he successfully solved 288 cubes, leaving just 12 cubes unsolved, this gives him a total of 276 points which is a unofficial world record by a very long way!

So massive congratulations to Graham Siggins on this incredible achievement, if you want to view it you can do so here