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