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