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