Open The Door! Part 1 (Tactics Puzzle 19)
This is a new series: Open the door! In this series you can solve puzzles with the theme attack on the castle.
Puzzle 1, white to move and checkmate in 2:
Puzzle 2, white to move and checkmate in 4:
Part 2 with more interesting attacks and sacs is coming soon, so check my blog for new posts occasionally.