Hello ! There is a drag and drop bug where sometimes I cannot equip stuff, and I had some items in my inventory disappear completely :-/
Also on one run there was a bug where there was an impossible grid (like derHinek reported before).
It probably needs some balancing too : when an enemy has armor it is impossible to hurt it with small numbers, and it doesn't even reset its cooldown so it can be impossible to win (especially when there was no attack buff available) and it is worse with "ignores staggering"
=> sometimes even if you fill the sudoku very fast you take a lot of damages and can only lose, so having a minimum of 1 damage per attack and always resetting the enemies' cooldown when filling a number correctly would be nice (I mean it is no big deal if they are immune to 1 or 2 numbers for example, but you cannot expect players to fill a specific number consistently, it is a bit too reliant on RNG and it makes the game unfair)