I'm trying to determine why it is a mistake to do what my opponent did. This game was played with 1 minute/1 second time controls.

 

 

 

 

 

 

 

 

Instead of forking my queen and rook, couldn't he have just checked me with his bishop and grabbed a pawn?

Wow, people love that trap. I just went to play on live.chess.com... my opponent tried almost exactly the same thing. This time the game was with 10 minute time controls.

Nearly the same thing happened.

of course Bxf7 Kf8, Bc4 Qc6, f3  grabbing pawn and escaping easily.

and this case Nxf7 Qc6,Nxh8 ??  after Qc6 keep-on three pawns with f3 !!

What move bxf7 and nxf7 be?

 Edit: nevermind. So what should I have done to prevent him from grabbing a pawn?

After 9. 0-0, I think it would have been difficult for you to maintain an advantage.

ku8, I put your nxf7 line into Chessmaster. Here's what happened. I love the position after move 27. White appears to be screwed.

 

 

5.Ng5 is a mistake, because you don't get anything with that move, i usually play 5...0-0 after that. 5...d5 is an interesting move, but i don't play it.

broze wrote: After 9. 0-0, I think it would have been difficult for you to maintain an advantage.

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All right, thanks.

"5.Ng5 is a mistake, because you don't get anything with that move, i usually play 5...0-0 after that. 5...d5 is an interesting move, but i don't play it."

What about in the second game? (After 4. Ng5)

In the second game, the main-line of particular variation two knights playing is

6c3 b5 7.Bf1 leading to a famous Berliner game. 6.d6 is not supposed to be very good. This is all known theory just not by me .  5...Na5 is the more common, but not necessarily better line. 5....b5 move order of Berliner game.

Just remembered can look the theory up at chess cafe site, in Tim Harding's column in archives.

skiingisfun69, in the second game after 4.Ng5 you have to play 4...d5. It is an opening move.  5.exd5 Na5 i would play this move for black.