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