These vertical wall-hangable chess boards seem like a good idea. Imagine playing a game with someone over time via casual walk-by moves -
There are no time clocks when you play on a Straight Up Chess Board. This is a casual game. As you pass by the Straight Up Chess board, you make your move, mark it with the “last move” marker and continue on your way. Later, your opponent passes by, makes their move and marks it as “last move”.