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