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