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