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