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