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