I really like the idea of changing chess pieces, because now it is more challenging. Thats why I think it deserves 4 stars, But I couldnt play even one game because every time I tap on the app: I see a big alpha, then the screen order changes to landscape, and finally I'm come out of the app. I have a tab S T-805, but I also try it on playgames app and even in windows 10 by bluestacks software, but unforunately the result was the same. Please check that. Thanks