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