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