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