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