The opening didn't mean anything in that game, you had a much better position out of the opening. You shouldn't lose that endgame.
Belgrade Gambit?
You played the Poljakov variation (5..Bc5), a playable line though not the most changelling for White. As a matter of fact with the black bishop in c5 is straightforward and strong to pin the Knight with 6.Bg5. But 6..Be7, as you played, is the strongest for Black.
You can find a review of all the lines of the Belgrade Gambit at this address:
http://www.webalice.it/costa.f/aperture/teoria/belgrade_en.html
and details on the Poljakov at:
http://www.webalice.it/costa.f/aperture/teoria/belgrade_poljakov_en.html
I like 5. ... Nb4. It leads to equal positions while being easy to remember something i think is important for niche openings

Hello, so I was at a NSWJCL chess competition the other day, and my opponent (NSWJCL 822) played the Belgrade Gambit against me. Being the NSWJCL 611 that I am, I didn't know how to play against it, and I just made moves that I thought were the best. Here is the whole game.
What's wrong with 5. Nd5 ...Nxd5 6. ed ...Bb4+, which looks natural and ok for black
Your problems start from move 21.Bg3 Bxe2...could have pushed c5 pawn 2 moves to c3 and
the game would have changed .As for your loss your 1pawn+ King end game is not known to you..have to keep your king in the 3rd square down from the opponent's king .eg.pawn on f6,king on e6 your king should be on e8 to prevent Queening.the pattern of moves should always be
such that this is maintained .This is for all files except 'a' and 'h' files of the rook where you can
try to reach first the a8 or h8 square with your king and the deal for draw is made.opponent can't
force you out.

As Ninjakiwi17 has correctly pointed out, you don't have to concern yourself with the opening: Even without knowing it you emerged with a winning position, so we conclude your opponent's knowledge of this line wasn't superior to yours at all. This goes for most other opponents in your rating range.
Your real problem was a completely different one: You didn't know how to keep your pieces active, retreated and exchanged them and ended up in a losing pawn ending. Occupying with middlegame and endgame training recommended for your strength should solve exactly these problems.

Jesus Christ! White blundered the full house right after the opening, yet some guys argue if 5...Bc5 is best, or not...
Forget about the opening and do mind to gobble free material whenever it happens. Just notice that 19...Nd5 20.Bg3 c4 wins a piece, at the very least.


Jesus Christ! White blundered the full house right after the opening, yet some guys argue if 5...Bc5 is best, or not...
Forget about the opening and do mind to gobble free material whenever it happens. Just notice that 19...Nd5 20.Bg3 c4 wins a piece, at the very least.
Already 7. Nxd4 is a huge mistake cuz of 7...Nxd5 and white loses a piece.

Why do you ask questions about the opening, when you lose in a completely drawish position? You'd better learn how to make an easy draw after 60.Ke5
Yes, I confirm, from a practical point of view the best seems to me:
6.Bg5 Be7! ((nobody mentions that 6 ... d6 ?! is the most played and also the most used by the highest ELO FIDE in Chessbase) 7.Nxe7!? (at the moment even bishops!) Qxe7 8.Bd3 ...
Let's talk about this position a bit
White's position is very easy to play, and his plan is as simple as playing: 0-0, Nd2! and f4!
I believe that whatever the modules say, on the real board the black side can have a lot of trouble.
Hello, so I was at a NSWJCL chess competition the other day, and my opponent (NSWJCL 822) played the Belgrade Gambit against me. Being the NSWJCL 611 that I am, I didn't know how to play against it, and I just made moves that I thought were the best. Here is the whole game.