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