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1、魔 方Magic CubeMagic Cube There are 26 blocks in a three-order magic cube,while it can offer 4.3*1019 likelihoods(可能情况).So even you can make three turns per second,it will take 454.2 billions 454.2 billions years to ergod(遍历)all the likelihoods!We have long heard about the magic cube.But can you solve
2、 it now?Some guys just can solve such a Rubiks Cube(三阶魔方)in less than one minute,even with their eyes closed.Are they really so smart?And how to solve a Rubiks cube?Somebody is confused by such a Rubiks cube.Why?Because we are not mathmaticians(数学家).Solves are calculated and given by Mathematics.Pla
3、yers need only remember some formulas(公式).So not the players but the mathmaticians are truly smart.With some formulas as follows,you can also solve it easily!Step 1:Remember the MarksF:front side turn clockwisely once(顺时针转)F:front side turn anticlockwisely once(逆时针转)B:back side turn clockwisely once
4、(顺时针转)B:back side turn anticlockwisely once(逆时针转)F2:front side turn clockwisely twice(顺时针转)So the others are the same:R:right side L：left side U:up side D:down sideStep 2:Remember the formulasThen we make the first and the second floor in right order 左换位：ULULFLFL右换位：URURFRFR上顺上顺上顺顺 下顺下顺下顺顺 上顺上顺上顺顺 下
5、顺下顺下顺顺 RB 上顺上顺上顺顺 下顺下顺下顺顺 BRLULULU2L We define this as formula 1RURURU2RWe define this as formula 2Formula 1 and formula 2 are basic formulasIf you encounter:Formula 2+formula 1+Formula 2+formula 1Formula 1+formula 2Formula 2+formula 2 Now we have make the first two floors and the ceiling in right order,but some blocks of the third floor are in the wrong positions.Continue to turn Also we will use formula 1 and formula 2,and another important formula will be useful:R2F2RBRF2RBR