Movement Rules
 King |
Moves one square in either direction |
 Knight |
Jumps exactly two squares in either direction, leaping over any pieces in the way |
 Rook |
Slides any number of squares in either direction, blocked by pieces in its path |
| Castle |
If the king and rook haven't moved, aren't adjacent, the king isn't in check, and all squares between them are empty, the king moves one square towards the rook while the rook moves two squares towards the king |