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