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