Extremely interesting game. I thoroughly enjoyed playing! Swapping rows/columns was a really nice mechanic that lead to some interesting ways to solve levels. The visual and SFX blend very nicely, the overall "feel" of the game is fantastic. Art style too, visually consistent and very charming!
The mechanics were not too difficult to pickup, although I can understand how they can potentially be confusing. I can admit control scheme felt a little strange as someone who associates WASD with top-down grid controls.
Something I was wondering about was how the board pieces interacted! It wasn't entirely clear their behavior, such as which enemies moved first or where exactly a gravestone would land if it was hit. Also, the starting cutscene felt a little slow-paced.
Nevertheless, this was an awesome submission, especially considering it was made by one person. Defiantly something I could see myself enjoying and recommending to others!