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