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