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