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