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