Here's what happens:
If the puzzle elo is smaller than 1000, and I get it right (in this case did puzzle 1), the puzzle elo INCREASES from 993 to 999 (even though I lose/gain no points)
If your elo is smaller than 1000, and you get a problem WRONG, it sometimes gives you extra points, so somehow it is very hard to go below a rating of 800 or even 900.
If the puzzle elo is smaller than 1000, and I get it right (in this case did puzzle 1), the puzzle elo INCREASES from 993 to 999 (even though I lose/gain no points)
If your elo is smaller than 1000, and you get a problem WRONG, it sometimes gives you extra points, so somehow it is very hard to go below a rating of 800 or even 900.