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