Changes

A fork which places the opponent in check is particularly effective, as the only possible response (other than capture) is for the opponent king to move out of check and thereby give up the other jeopardized piece.  Forks that jeopardize the opponent queen are likewise effective.

A fork which places the opponent in check is particularly effective, as the only possible response (other than capture) is for the opponent king to move out of check and thereby give up the other jeopardized piece.  Forks that jeopardize the opponent queen are likewise effective.

A fork by an advancing, protect pawn is often overlooked by beginners, and should become part of the repertoire of every player.

A fork by an advancing, protected pawn is often overlooked by beginners, and should become part of the repertoire of every player.

==Stacking==

==Stacking==