The boy got a merit certificate this year. This is also the end of his fantastics 7-year STS journey. The next chapter is waiting for him to explore, so it's right time to move on.
It's my privilege to be able to work with him all the way. The little boy curious about how computer programs work has become a pretty mature problem solver. I'll never forget the very first time he went out from the judging room, told me he was asked a question 'what's a variable?'.
If you have a Pebble smartwatch, you may want to try his application here.