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