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