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