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