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