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