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