I personally would have welcomed a tougher challenge. However, this game is original, engaging, and entertaining, has replay value, and has a really clean lay-out. With that in mind, the lack of challenge -- which The Ravensridge Press was happy to help ramp up when I reached out for tips! -- really doesn't justify a 4/5 in what should at worst be a 4.5/5. I had a lot of fun!