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