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