You are telling me, that a nation trying to recover from an apocalyptic war is killing its most smart and promising teenagers? 
 WTF? That doesn't make any sense! Think about it, a nation trying to survive and prosper would treat these smart people as HEROES! 
 One of the characters mentions that they are looking for future leaders to be strong, because one of the past leaders failed to attack when it was needed. That's true, but have these people heard of balance? Let's be honest, most of the winners of the testing will be ruthless and merciless... that's not a leader, that's a tyrant. 
 Maybe, the society is corrupt and wants future leaders to be as corrupt.... I can't believe that either... If the society is corrupt they would like puppets, not strong people. 
 It doesn't make any sense... although the concept is fun to read, it is not logical. If you go with the flow and forget that nothing makes sense, it is a very addictive book. It has the feeling of the Hunger Games and Divergent and I'm sure fans of those two sagas will really enjoy the book. There are similarities to both of them, but I still felt that it was a new story. 
 The characters are interesting although the main character is a bit too perfect. She is really smart and kind to everyone but still manages to be strong when it is needed. I liked that she is confident and really trusts her instincts; she really would make a great leader. 
 The romance didn't blow me off my feet but it was cute. I could have lived without the "He is so handsome and girls throw themselves over him by the numbers... why would he choose me?" though. 
 Maybe in later books the testing will be explained further... but for now I'll rate it 3 stars, the concept didn't convince me.