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