1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Na5
6. Bb5+ c6
7. dxc6 bxc6
8. Be2 h6
9. Nf3 Bd6
10. d4 e4
11. Ne5
It is interesting that if instead the game had gone:
we would apparently have the same position - except that Black could now play 11. … exd3 en passant.
I am starting to get much more uncomfortable with my position!
I think my goal for the short term ought to be making a bigger threat against the e5 square, since it seems to be the most vulnerable white piece. I can accomplish that by threatening your d4 pawn with … c6-c5. I can’t do that until I somehow fix the bB5 check that would result. I can prevent that by castling now. I’m trying to see a way in which you could gain advantage from me castling, and I don’t see it. So for the short term, I’m planning to castle (which I think is notated as 0-0), and then c6-c5 my next move. Here goes!
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Na5
6. Bb5+ c6
7. dxc6 bxc6
8. Be2 h6
9. Nf3 Bd6
10. d4 e4
11. Ne5 0-0
game here!
Sorry if my reasoning seems a bit “stream of consciousness.” I’m typing how I’m thinking, which is not nearly linear or logically organized. 
If you can decipher my rambling, please critique my reasoning.
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Na5
6. Bb5+ c6
7. dxc6 bxc6
8. Be2 h6
9. Nf3 Bd6
10. d4 e4
11. Ne5 O-O
12. O-O
Yes, castling on the kingsdie is written as O-O (or OO) is chess notation.
Queenside castling (e.g. White King to c1; White Rook to d1) is written O-O-O (or OOO.)
This is good analysis! My well-placed (centralised) knight on e5 is both my best piece and my most vulnerable. Therefore you should look at attacking or undermining it.
Your thoughts are clear to me - this is how chess players think. The top players just have so much experience that they recognise patterns immediately and don’t need to work ‘step-by-step’.
Here I’m following through with my plan, which I don’t think was affected too much by your castling. I expect you’ll reinforce the pawn by moving c2-c3, or by Be3.
game here.
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Na5
6. Bb5+ c6
7. dxc6 bxc6
8. Be2 h6
9. Nf3 Bd6
10. d4 e4
11. Ne5 O-O
12. O-O c6-c5
13. c3
That was good analysis. 
It’s funny, because I thought I was a clear pawn ahead. (The main line goes 9. … e4 10. Ne5 Bd6 11. d4 exd3 en passant, and deviating usually means a weaker move)
But you have some play and I need to be careful.
It’s important to be honest about analysing chess - just because I thought I had a winning position doesn’t mean I can keep that view once studying continuations shows something different.
I’m moving Re1 to put more pressure on the knight. I figure if you respond with f2-f4, I can respond with g7-g5. That would expose my king a bit, but it seems like it would take you a few turns to capitalize on that. In exchange, I think it would dislodge your knight and give me some more room to play.
Although I didn’t intend for my forward pawn to be a major piece, I sure am happy it’s there now!
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Na5
6. Bb5+ c6
7. dxc6 bxc6
8. Be2 h6
9. Nf3 Bd6
10. d4 e4
11. Ne5 O-O
12. O-O c6-c5
13. c3 Re1
game here
**1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Na5
6. Bb5+ c6
7. dxc6 bxc6
8. Be2 h6
9. Nf3 Bd6
10. d4 e4
11. Ne5 O-O
12. O-O c6-c5
13. c3 Re8
14. f4 **
(I corrected Re1 to Re8.)
Note that you can play 14. … exf3 en passant if you want.
[spoiler]If Black plays 14. … g5, I think he loses quickly:
I don’t know if I wasn’t supposed to click the spoiler box, but I did anyway. I’m glad I did, because otherwise I would have made a big mistake.
Now that you mention it, the en pessant seems like my best move. After that, I expect you’ll capture with Bxf3, and I can protect my rook with Bb7. After that, you’ll have to find another way to reinforce your knight, or abandon the position.
I can see a possible weakness for me with you moving b2-b4, but if I capture your bishop with mine, it will buy me a turn to escape with my knight.
I’m having a hard time thinking further than that. Brain hurts!
game here
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Na5
6. Bb5+ c6
7. dxc6 bxc6
8. Be2 h6
9. Nf3 Bd6
10. d4 e4
11. Ne5 O-O
12. O-O c6-c5
13. c3 Re8
14. f4 e4xf3
15. Bxf3
I thought it was diplomatic to put the warning in the Spoiler!
The small amount of momentum I had is gone. I still see a pretty close game at this point, though.
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Na5
6. Bb5+ c6
7. dxc6 bxc6
8. Be2 h6
9. Nf3 Bd6
10. d4 e4
11. Ne5 O-O
12. O-O c6-c5
13. c3 Re8
14. f4 e4xf3
15. Bxf3 Bb7
16. Bxb7
If 16. … Nxb7
17. Nxf7 (ole!)
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Na5
6. Bb5+ c6
7. dxc6 bxc6
8. Be2 h6
9. Nf3 Bd6
10. d4 e4
11. Ne5 O-O
12. O-O c6-c5
13. c3 Re8
14. f4 e4xf3
15. Bxf3 Bb7
16. Bxb7 Nxb7
17. Nxf7 Kxf7
I can see the pin on my knight, but I couldn’t think of a better alternative!
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Na5
6. Bb5+ c6
7. dxc6 bxc6
8. Be2 h6
9. Nf3 Bd6
10. d4 e4
11. Ne5 O-O
12. O-O c6-c5
13. c3 Re8
14. f4 e4xf3
15. Bxf3 Bb7
16. Bxb7 Nxb7
17. Nxf7 Kxf7
18. Qb3+
There is a fork on your King and Knight on b7, which means I win my piece back.
My rook is pinning your Knight on f6 against your King, but this doesn’t win anything for me.
Even though it leaves me pinned by your rook, I think its better than the alternatives, which would either limit my rook’s movement or leave my king even more open to attack.
Sorry for the long delay! There’s a lot going on here at the moment.
game here
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6
4. Ng5 d5
5. exd5 Na5
6. Bb5+ c6
7. dxc6 bxc6
8. Be2 h6
9. Nf3 Bd6
10. d4 e4
11. Ne5 O-O
12. O-O c6-c5
13. c3 Re8
14. f4 e4xf3
15. Bxf3 Bb7
16. Bxb7 Nxb7
17. Nxf7 Kxf7
18. Qb3+ Kf8
19. Qxb7
Yes, this was a tricky choice.
18. … Kg6 keeps your pieces active, but leaves your king exposed.
It’s the sort of move you play when you feel you’re losing and need to take risks to save the game.
No problem - hope things work out.
I want to stop the pin on my knight so I can get him to work. I’m feeling the pressure now, and I can only imagine it will get worse until the end.
You have more active pieces, even though my two pawn advantage is enough to win.
So I’m consolidating by retreating (you could always gain time by attacking my Queen anyway…)
Once I finish my development and keep my king safe, I’ll be looking to exchange off into an ending (the easiest way to finish.)
I’m hoping to get some offensive momentum here, but I feel like I’m fighting uphill!
I appreciate your patience with the longish intervals between my moves. I don’t quite have a chess brain, and even though I’m having lots of fun, it takes a lot of my concentration and energy to make moves that aren’t overtly disastrous.
You’re doing your best - if I consolidate my position, the two extra pawns will win easily.
For interest, here’s a line I considered:
and it’s a draw 
, because if I ever take your bishop, I lose my rook - and then your rook dominates both my knight and rook…
I’m probably overlooking something, but I think I see a good opportunity to get my initiative back and put you in a difficult position.
I know I’m apologizing for delays every time I post in this game, but I hope you’ll forgive me! My next move won’t take nearly as long. Thanks for being patient with me!