Move in an "L-shape" that combines spatial squares and temporal turns (e.g., one square forward in space, two turns back in time).
The most common beginner mistake is ignoring historical boards. Every time you leave your King exposed in a past turn, you invite your opponent to send a Knight or Queen backward through time to assassinate your leader. Always keep your King safely castled across all active timelines. Limit the Number of Timelines
: Move any number of squares along exactly one of the four axes.