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