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