Well, luckily there's a nifty looking spinny-thing next to the chessboard. You can use that to translate your answer and that might lead to the final answer, or not.
Fine! The second answer, once you've translated the previous one, should now come to '713'.
Queen = 258 (because you’re playing with the black pieces the queen is on the black square of 258)
Tower = 42
Horse = 178
258 - 42 + 178 = 394
Then you have to look at the converter wheel (the outer circle for your previous number) and you’ll get 3 = 7, 9 = 1 and 4 = 3