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