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