Solve a rubik's cube A few months ago, I learnt how to solve a rubik's cube. At first,I recited many formulas , and I couldn't solve it without formulas .However, It struck me that it was so slow that I had to spend 5 minutes to finish it. After that,I practised for a long time , and then my finger became more and more flexible. After a few weeks, I forgot all of the formulas because my finger could react accordingly when I saw any kind of situations. Now, I can solve a rubik's cube within one minutes.