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