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