Perhaps this is bias speaking, because I do enjoy picross, minesweeper, and the like
But this definitely emulates those kinds of games well and I found myself having a lot of fun with this entry!
One thing I noticed is that sometimes solutions would generate in the 0 columns, so if I selected everything in those columns, I would just win automatically. It's not a big deal but you could remove that so players have to think a bit more! Though getting lucky is fun in it's own way... hehe.
Congrats on submitting your first jam entry! Here's hoping things went well and there'll be more to come :)