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