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