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