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