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