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