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