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