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