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