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