Your goal is to find the secret four-color code. The following colors are possible: purple, red, pink, white, blue, brown.
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: ['blue', 'brown', 'white', 'purple']. Hint: one color is in the correct position and two colors are in the secret code but in the wrong position.
Guess: ['purple', 'red', 'brown', 'purple']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['red', 'purple', 'white', 'brown']. Hint: one color is in the correct position and two colors are in the secret code but in the wrong position.
A B C D
white, red, purple, blue red, red, white, red pink, white, purple, blue red, brown, purple, blue