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