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