The Rubik's Family
I've bought all those original rubiks and so far I've solve 2x2x2 and 3x3x3 cube. The 4x4x4, I've only managed to solve 80% due to the last few steps I need to memorize around 20 steps. They said due to 'parity error'
The 5x5x5, I've only solve the center 3x3x3 on all sides. that is easy. The other steps, i need to watch the video on youtube several more times before I can attempt to solve it.
What I noticed, once you mastered the 3x3x3 cube, solving the other cubes will be much easier since you already have the basic on solving the puzzle. The hardest is solving the final steps like the 4x4x4 - so many steps just to solve the 2 pieces.
Keep on tryin'...............................