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