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