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