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