I just posted the fiftieth tsume(mate) problem taken from games played by professional players. It consists a screenshot of the tsume problem position with solution and some annotation by me. If you like to practice tsume problems to be better at the endgame of shogi, please check it out. I think many composed tsume problems are of too much puzzle and unbelievable-looking sacrifice to be often applicable for a real game. By solving these problems extracd from professional games, you are supposed to be able to learn how to deliver checkmate in real situations.