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