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