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