Thanks. He is a youngster and this is his first year compating in chess. It was about equal game before he played Kf1. With the only purpose to be near the center WHEN black exchange all the rooks at square d1. White simply missed Rd2 move and the mating motives. And in the end I missed to give him mate in 2 :(. Ok, at the time I was close to 5 min on the clock so I just rechecked my lines and went for his bishop and queen. Anyway, it's my mistake there.
First 5 games are on rapid control 20 mins for the game. The last 2 games are on 61mins per game. I had one win without play. Enjoy.