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