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