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