All but one game transposed to the DDG Accepted "main variation" 4. Nc3 Nf6 5. f3.
May: Heikkinen - Phydeaux (5... Bb4 6. Qa4+). My mouseslip variation: in the 15th move, I intended to move the queen to f2, but dropped it accidentally to e2. Fortunately, it did not matter too much. In the end, White sacrifices the knight decisively on h7.
June: Heikkinen - Wayne Gum (5... Bb4 6. Qa4+). White does not castle, but opens the g-file. Time: 10 minutes.
July: Heikkinen - Mike Superville (5... exf3). Black defends with g6, and White has to wriggle in. This is my "longest transposition" to the DDG, via the Queen's Pawn: English Defense 1. d4 b6. Black does not play e6 until in the 9th move!
August: Heikkinen - Kalle2000 (5... c6). Queen's bishops are exchanged early in the game, and White attacks with two knights. Kalle2000 is one of the very few players who have won me twice in the DDG; 2000 is very likely his Elo rating.
September: Heikkinen - fregat (3... c6). A wild game withoug castling, and Black makes a rare king's fianchetto. Time: 20 minutes.
October: Heikkinen - demosthnes (5... c5). White sacrifices the bishop on h7 too optimistically, but again, Black fails to punish him.
November: Heikkinen - Ronald Young (5... Bb4 6. Be3). In the DDG e-mail tournament, I learned to castle queenside, of which this is a nice example.