A Microsoft Word 2007 document containing 12 pages of easy Knight forks with 6 diagrams per page (72 problems total).  Each Knight fork begins with a check and wins a piece or a pawn. I use these for pattern recognition in my chess club before moving on to more difficult knight forks. These problems were found by using Chessbase's Manoeuvres search. The positions were copied into DiagTransfer, saved as pngs and inserted into a Word Document.  If you would like to generate your own, see Steve Lopez's how to article at http://www.chessbase.com/workshop2.asp?id=1553