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