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