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