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