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