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