[Event "Teters 2017"]
[Site "Mechanics Institute"]
[Date "2017-08-17"]
[White "Harrison Harrison"]
[Black "Rodney Jacobs"]
[WhiteElo "1816"]
[BlackElo "1704"]
[Result "1-0"]

1.e4 d5 2.exd5 Nf6 3.c4 e6 4.dxe6 Bxe6 5.d4 Bb4+ 6.Bd2 Qe7 7.Qe2! {Rarely played on Chessbase. Usual are Bxb4 or Be2. But, as I have found before, while he seems to prefer oddball openings, Harrison has a fine instinct for the right move in ultra-sharp book lines. Both Stockfish 7 and Deep Shredder pick Qe2. (RJ)} Nc6 {It looks wrong to invite the fork. But in the Scandinavian Gambit this is not unusual. A Black player should not play the gambit unless they are prepared to give up a piece if necessary to sustain the attack. Nc6 is given as best by Chessbase, as well as Deep Shredder and Stockfish 7. Those programs put Black slightly ahead, the latter at -1.18.(RJ)} 8.Nf3! {Again best. (RJ)} Bxd2+?! {The braver O-O-O! is the sharpest. (RJ)} 9.Nbxd2 O-O-O! {Inviting the fork, as so often happens in this gambit. The position is about even. (RJ)} 10.d5 {Still following a (little played) line in Chessbase. (RJ)} Nb4 11.Kd1! {Picked by Deep Shredder. Stockfish 7 prefers dxe6, but there's not much in it. (RJ)} Nfxd5 {Diverging from the Chessbase line, where the sac started with the Knight on b4 taking. The engines indicate that would have been slightly better. (RJ)} 12.cxd5 Rxd5 13.a3?! {The engines like Qe4, calling it dead even after that. now Black has the upper hand - by about 1. (RJ)} Nd3 14.Qe3 {Best. Still following the Chessbase line. (RJ)} Rhd8! {Best.} 15.Bxd3?! {Stockfish 7 and Deep Shredder give Rb1 and Rc1 respectively. It's complex! (RJ)} Rxd3 16.Qxa7? {A mistake! Best is Qe2. (RJ)} Bg4?? {Ruining a fascinating game. I wanted to play Bb3ch and looked at it for a long time, but could see nothing. But it's there. 16.......Bb3ch  17. Kc1  Qd6!  18. Qa8ch  Kd7  and White has nothing better than Qxd8. A really good chess lesson - if you're going to put a piece on an unprotected square, have a really good look first!(RJ)} 17.Qa8+ Kd7 18.Qa4+ {The bishop goes, after which Black has nothing left. (RJ)} {#r}