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