Your goal is to find the secret four-color code. The following colors are possible: purple, pink, blue, white, red, yellow.
Some guesses have already been made. I will provide feedback for each guess made with which it is possible to unambigiously determine the secret code.

Previous Guesses:
Guess: ['red', 'white', 'yellow', 'blue']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['purple', 'blue', 'red', 'red']. Hint: one color is in the correct position and two colors are in the secret code but in the wrong position.
Guess: ['purple', 'red', 'blue', 'yellow']. Hint: three colors are in the correct positions.
A B C D
white, red, yellow, white purple, red, blue, white blue, pink, white, pink purple, yellow, white, red