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