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