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