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