Hey your notation is strange! 
My Dirty Double Check Mates.
Well, by definition, a double-checkmate would mean if you took away one of the checking pieces, there would still be a checkmate.
However, Take away the Rook (checked by Bishop), and the King can move to d8, take away the Bishop(checked by Rook) and the King can move to c8.
So it is not a double checkmate
I understand what you are saying, but the game ended. The king does not "Die" in this game. When the "King" has no options due to outcomes. The game ends.
You wouldn't, and couldn't move a piece just to block one of those "Checks", then look at me and say "There, now it's Check Mate". It just doesnt work like that. Ever. When the game ends, the game ends.
Don't be mad that you have not done something like this yet...
Ownagebus, I was disputing your heading, not your philisophical assesment.
(which doesn't make sense anyway)
Would you like me to post the picture of the board/girl that this happened with the first time? I can... Then would my heading make more sense? ..................................................
I think the idea of a double checkmate stems from the double attack. Slightly more sophisticated than the double attack is the double check and discovered check. Combine those two and you get a discovered double check. If that happens to be mate, you would have a discovered double checkmate, because the king is in check by two pieces, even though he's not in mate by two pieces.
I Play online while I take phone calls (Call Center) at work... I did this the other day on come2play.com while distracted...
This is the second time I have done this type of thing. I have a picture of the first time. The first one was at a coffee shop against a hot girl. I was so excited that I got her in a double check mate. I was even more excited for her! She was new to chess. Sadly... She was not as excited as me... ) :
[White Ownagebus (25)]
[Black CalAggie (25 United States)]
1.Pe2e4 Pe7e5
2.Ng1f3 Bf8c5
3.Pd2d4 Pe5xd4
4.Nf3xd4 Bc5xd4
5.Qd1xd4 Ng8e7
6.Qd4xg7 Rh8f8
7.Bc1h6 Rf8g8
8.Qg7xh7 Pc7c5
9.Bf1c4 Pd7d5
10.Bc4xd5 Pf7f5
11.Qh7f7 Ke8d7
12.Pe4xf5 Kd7d6
13.Pc2c4 Bc8xf5
14.Bh6f4 Kd6d7
15.Nb1c3 Qd8a5
16.Ra1d1 Nb8c6
17.Bd5e6 -Double Check mate