Puzzle Battle: check and history

I have two suggestions:

1. check
When there is a check and no defense is made, the system does not count the loss but forces the correct move. The only penalty is wasting time when making an unnecessary (because wrong) move.
I believe that failing the puzzle is a more appropriate punishment. This first teaches you to check if you can make a move. The buzzer itself is only in the analysis of the puzzle after the end of the game, when learning to solve is in progress.

2. history
In the off-line and on-line games we have a history of our games, who we played with, how the ranting changed.
Puzzle Battle does not have this convenience anymore. It is impossible to see if the opponent has already been played, what was the result of the battles. This increases the gameplay and makes it more attractive, because Puzzle Battle is not only about learning what it is during analysis, but also about fighting during the game.
I understand that this may put a heavy load on the server. Therefore, such a pleasure, if not all subscribers, should be enjoyed by platinum and diamond users.