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: ['red', 'brown', 'yellow', 'green']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['brown', 'pink', 'brown', 'red']. Hint: one color is in the correct position and one color is in the secret code but in the wrong position.
Guess: ['brown', 'yellow', 'green', 'pink']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['green', 'red', 'brown', '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
red, green, pink, brown blue, blue, green, blue blue, red, brown, yellow yellow, red, brown, green