I thought this game would be more detective work, but I ended up just waiting until the wolves spawn and either walling them until the timer runs out or walling up a single sheep and using bait to stall out the wolves from destroying the walls. The only "out of control" feel I had was having no grid placement for blocks. When I need to wall up a wolf, you could see the struggle as my blocks are placed sporadically. Other than that, I felt that I was in control for a majority of the game.
Also, please turn up the volume of the sound effects, and perhaps add some more. It will definitely need more polish if development continues.