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