Game 5852374
A few comments on this game.
It's generally a bad idea to bring out your queen too early as your opponent can chase it around whilst developing pieces. You got away with it in this game because your opponent allowed you to exchange queens early on. In the opening you should be trying to develop your knights and bishop and castle before you start thinking about where your rooks and queen belong. You have to balance this with keeping control of the centre with your pawns.
Your wing pawn moves - a2-a4, a4-a5 and h2-h4 didn't really seem to have a point to them. Often these are better placed on a3 and h3 to prevent your opponents knights and bishops getting to a powerful square.
Your first real blunder was 23. Rd3. This is called an overworked piece. The rook is doing two jobs, defending the knight on c3 and the other knight on d4. Whenever you have an overworked piece your opponent is likely to have tactics which win material. This is exactly what happened here.
When you are material down, it is generally a good idea to try and keep as many pieces on the board as possible, but to swap pawns whenever you can. This is because you may get to a drawn ending (e.g. king and two knights vs king). If your opponent has any pawns left in the ending, he may well be able to promote it to a queen.
Originally posted by sh76It's been well known for over two hundred years that the Ponziani Opening is a forced loss for White. That's why it's use is prohibited in international tournaments.
Out of curiosity...
why did you resign this game?
Game 5815688
Hikaru Nakamura-Julio Becerra-Rivero, U.S. Championship 2007
1.e4 e5 2.Nf3 Nc6 3.c3 f5 4.d4 fxe4 5.Nxe5 Nf6 6.Bb5 Bd6 7.Nc4 Be7 8.Ba4 d5 9.Ne5 O-O 10.Bxc6 bxc6 11.Nxc6 Qe8 12.Nxe7+ Qxe7 13.O-O Ng4 14.h3 e3 15.Bxe3 Nxe3 16.fxe3 Bxh3 17.Rf3 Bg4 18.Rxf8+ Rxf8 19.Qe1 Rf6 20.Nd2 Rg6 21.Qg3 Qe6 22.Qf4 Bh3 23.g3 h5 24.e4 Rg4 25.Qxc7 h4 26.Kh2 hxg3+ 27.Kxh3 Rxe4+ 28.Kg2 Re2+ 29.Kxg3 Qe3+ 30.Kh4 Qh6+ 31.Kg3 Qg5+ 32.Kh3 Rxd2 33.Qc8+ Kh7 0-1
This opening even got Nakamura in trouble.