This round 4 win clinched the Class B tournament victory. This, unlike the round one and three wins, is relatively well played by me. All four my games in this tournament entered the endgame, and my opponents played it poorly in my three victories. I don't know if I got lucky, if their poor endgame technique is typical of players at this level, or if my endgame technique is unusually good. Probably the outcome is a result of a bit of all three. What do you think?