Tactics Training #1

In this short blog post, I'm going to share some fun tactics puzzles I've been working on, both by myself and with my University Chess Team. Try solving them and posting in the comments. I'll post the solutions and relevant variations after some people have tried to solve them in the comments. I'll try to make this into something of a series. All problems here are taken from M. Blokh's "Combinative Motifs." In the future I'll grab some positions from GM games I study or from my own games maybe.

 White to Move (Bonus if you can find the solution for Black to Move)