The Diemer-Duhm gambit can be used against black in the French opening or against black in the orthodox defense of Queen's gambit declined.
Opening moves must be 1.e4 e6 2.d4 d5 3.c4 dxe4 in every game which is the Diemer-Duhm gambit accepted. These moves do not have to be played, i.e. white can make the fourth move at once.
Every player will play an equal number of games as white and as black in the tournament. Every player will play in just so many games he desires as long as it is an even figure.
All players will play in one group, but will not play against all the other participants. The tournament schedule will be adjusted to how many games each participant is willing to play, and to the ratings of the participants.
Reflection time is 30 days for every 10 moves. If you receive an email on the 14th and reply on the 17th you have thought 3 days. Time that is not used in one 10-move-period may be saved. Weekends count as well even if you have no access to email during them. Anyone who thinks longer will lose the game if the opponent so requires.
Heikkinen 1884 - GM Lalic 2575
Golders Green Rapidplay, London, 1996-06-22
1.d4 Nf6 2.c4 e6 3.f3 d5 4.e4 dxe4 5.Nc3 Bb4 6.Qa4+ Nc6 7.a3 Bxc3+ 8.bxc3 h6 9.Qc2 exf3 10.Nxf3 O-O 11.Be2 e5 12.dxe5 Ng4 13.Bf4 Qe7 14.O-O Qc5+ 15.Kh1 Nf2+ 16.Rxf2 Qxf2 17.Qe4 Bf5 18.Qxf5 Qxe2 19.Bxh6 gxh6 20.Ng5 hxg5 21.Qxg5+ Kh7 22.Qf5+ Kh6 23.Qf6+ Kh7 24.Qf5+ Kh8 25.Qf6+ Kh7 26.Qf5+ Kh6 27.Qf6+ Kh5 28.Qf5+ Kh6 1/2 [PGN]
Our best regardsJyrki Heikkinen