On (03 Nov 96) Robert Jones wrote to Bruce Moon...

   GAME 1 -- Jones-Moon: 1.d4 Nf6 2.Nc3 d5 3.Nf3 e6 4.e4 dxe4 5....

   GAME 2 -- Moon-Jones: 1.e4 Nc6 2.d4 Nf6 3.Nc3 e5 4.d5 ...

  RJ> I'm not sure what you mean in game one, move 4 "dxe4".
Are you taking
  RJ> my pawn with your pawn or knight?

   With the Pawn.  A capture with a piece would have included the symbol for
   the piece -- such as "4...Nxe4".  Since there is no symbol in Algebraic
   Notation for Pawn, non-capturing Pawn moves are indicated by the end square
   alone; and capturing Pawn moves are indicated by the "from"
file + "x" + the
   end square.  Thus "4...dxe4" means a Black Pawn on the d-file
is capturing a
   hostile Pawn or piece on e4.

   You forgot to move in Game 2.

 Later,
 Bruce Moon