Changing face Rubik's cube block puzzle

OverviewPLAY A First, the cards are classified according to the four colors of red, blue, yellow and green, and the respective order is shuffled Each person chooses a color and takes 4 squares of the corresponding color Each person takes a turn to open the challenge card, need to rotate the 4 squares in the hand at the fastest speed, switch positions, and spell the side facing up into the corresponding pattern on the challenge card. Whoever finishes first rings the bell first and wins. PLAY B (Bell Challenge) Two people choose their favorite square color, and prepare the corresponding color cards and bells Everyone chooses a card and begins to solve the Rubik's cube according to the pattern on the card Both sides use the fastest speed to go to the puzzle, who finished the first ring the bell, will win. (The penalty for winning or losing can be set by oneself)