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