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