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