Under a minute when I was practicing. I'm sure it'd take me 2-3 minutes now.
My last algorithm switched the top right and top left edge pieces (as well as two corners which I'll ignore for this explanation). So I look as the top right edge and figure out where it needed to go to be solved, let's say the front left edge. Now if I move the front left edge to the top left, do my algorithm, and move it back, those pieces will be swapped.
Here's where it gets fun: since I know what was originally the front left edge is now going to be in the top right position, I can chain this together when memorizing. So memorizing would sound like "top right goes to front left which goes to back right which goes to..."
In practice this was just me pointing to pieces and visualizing everything. Another strategy is to assign a letter to each piece and remember a string of letters. At most the length of the string will be numEdges -1 + numCorners - 1 = 18.
And then once it's translated to letters you can use more traditional memorization techniques like Roman Rooms. This is how people can solve dozens of cubes at once blindfolded (I've only done three at a time).
My last algorithm switched the top right and top left edge pieces (as well as two corners which I'll ignore for this explanation). So I look as the top right edge and figure out where it needed to go to be solved, let's say the front left edge. Now if I move the front left edge to the top left, do my algorithm, and move it back, those pieces will be swapped.
Here's where it gets fun: since I know what was originally the front left edge is now going to be in the top right position, I can chain this together when memorizing. So memorizing would sound like "top right goes to front left which goes to back right which goes to..."
In practice this was just me pointing to pieces and visualizing everything. Another strategy is to assign a letter to each piece and remember a string of letters. At most the length of the string will be numEdges -1 + numCorners - 1 = 18.
And then once it's translated to letters you can use more traditional memorization techniques like Roman Rooms. This is how people can solve dozens of cubes at once blindfolded (I've only done three at a time).