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