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