This article is from the RSC/UKSC Cricket FAQ, by Ganesh with numerous contributions by others.
What 's open and closed stance?
Cricket is a side-on game. You do not directly face the ball
when you bat. Ideally, one bats with one's leading shoulder
pointing to the wicket at the non- striker's end. A batsman
(usually to counter short-pitched bowling) 'opens' his stance by
standing at a slight angle such that his leading shoulder is
pointing more towards mid-on.
The stances differ in the feet positions relative to
the crease as shown below.
/ / / \/ /<---- Open stance \/ (front-on) | | `------- `------- \ \ \ Closed stance (side-on stance)
Other aliases front-on = square-on, two eyed/open stance side-on = closed,