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