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