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