Familiar, Unfamiliar

If you are familiar with the opening that you are playing, that's a plus. If you are unfamiliar with the opening that you are playing, that's a minus. Sometimes that overshadows the soundness or unsoundness of the opening that you are playing.

jfhumphrey - ruiaf
blitz, FICS, 2012

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.O-O 

As with yesterday's post concerning bemillsy - leoarthur
blitz, FICS, 2012, here we have a delayed Jerome Gambit, transposing into a "modern" version of the Jerome.

4...Nf6 5.Bxf7+ 

5...Kxf7 6.Nxe5+ Nxe5 7.d4 Bb6

Another way to go astray, with all the best intentions: saving the Bishop, giving back a piece, staying a piece up.

Best: 7... Bxd4

8.dxe5 Nxe4

Instead, Black had 8...Ne8 when White could sue for peace with 9.Qf3+ Kg8 10.Qb3+ Kf8 11.Qf3+ etc. (Instead, Teterow - bassosoolo, blitz, FICS, 2011, continued 9.Qf3+ Kg8 10.Rd1 and Black lost on time in 42 moves.)

9. Qd5+ 

An improvement on 9.Qg3+ in jfhumphrey - Gurucool, blitz, FICS, 2011 (1-0, 21).

9...Ke7 10.Qxe4 

10...Rf8

Collapsing.

11. Bg5+ Black resigned