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