Monday, March 11, 2019

Jerome Gambit: Why We Play "Bad" Openings

The following bullet game (one minute, no increment) was sent to me by Angel CamiƱa. Please be sure to read the notes. 

Anonymous - Anonymous
1 0 bullet, lichess.org, 2019

1.e4 e5 2.Nf3 Nc6 3.Bc4 h6

This is referred to as the "Semi-Italian Opening" in Euwe & Meiden's Chess Master vs Chess Amateur (1963). It is a cautious attempt to keep a White piece off of g5, at the risk of wasting some time and possibly weakening the Kingside, if Black should castle there.

4.Nc3 Nd4 

Wow, Black goes from "shy" to "outgoing" in one move. He plays the Blackburne Shilling Gambit, with the addition of Nc3 and ...h6. This may well be effective psychology in a bullet game (surprise your opponent, make him take precious time to figure out a novel position), but it is very risky play, nonetheless: In 20 previous games in The Database, Black scored only 20%

Stockfish 10 rates the first player's position as 3 pawns better at this point.

5.Bxf7+ 

One good surprise deserves another. White gives the "Jerome treatment", creating a sort of "Semi-Italian Blackmar Shilling Jerome Gambit" hybrid.

Why do such a thing? First, White is familiar with Jerome Gambit and Jerome-like themes and tactics (and his opponent may not be). Second, the "proper" response to Black's 4th move, at least as laid out by Stockfish 10, is stylized along BSG lines, and may well not be to the first player's taste. The computer recommends 5.Nxe5 Qg5 (thematic BSG) 6.Bxf7+ Kd8 7.Ng4 Nf6 8.Ne3 Bc5 9.O-O Rf8 10.f4 Qh4 11.b4 Bb6 12.Bg6 d6 13.e5 Bg4 14.Qe1 Qxe1 15.Rxe1 dxe5 16.fxe5 Bh5 17. exf6 Bxg6 18.fxg7 Rg8 19.Na4 Rxg7 20.Bb2 Rd7 where White is up two pawns.

5...Kxf7 6.Nxe5+ Ke8 

Home again - and walking into a checkmate.

The computer humorously recommends 6...Ke6 7.f4 Qh4+ 8.g3 Qh3 9.Nd5 Qg2 10.Qg4+ Kd6 11.Qg6+ Nf6 12.Nc4+ Kc6 13.Ne5+
heading toward a draw by repetition.

White is now rewarded for his bold play.

7.Qh5+ Ke7 8.Qf7+ Kd6 9.Nc4+ Kc6 10.Qd5 checkmate



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