Friday, March 15, 2019

Jerome Gambit: Return of the Queen

In the following Jerome Gambit game, it looks like White will be punished for allowing his Queen to roam too far from home. She gets cut off from the action on the Kingside, then idles on the Queenside. But - just in time she returns to the action, and helps finish off the game.


Wall, Bill - Guest6808573
PlayChess.com, 2019

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+


4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 7.Qd5+ Ke8 8.Qxc5 d6 9.Qa5 

Bill Wall likes to experiment in the Jerome Gambit. After all, what's a little more risk, once you've sacrificed a piece or two?

9...Nf6 10.O-O b6 

This is not the first time that Her Majesty has relocated to a5. In Wall,B - Guest1151077, PlayChess.com, 2013 (1-0, 33), Black tried, instead, 10...Rf8.

11.Qa3 Bb7 12.d3 Kf7 

Black is doing fine, but he must not become complacent.

13.Qb3+ Ke7 14.Nc3 Re8 15.f4 Kf8 16.Bd2 d5 



Hoping to blow up White's center. He has not prepared for the next move, however.

17.e5 Ng4 18.d4 c6 

It looks as if Black wants to protect his d-pawn again, so that he can play his Queen over to the Kingside - but he never gets the chance, as White's "Jerome pawns" continue their advance.

19.h3 Nh6 20.f5 Nh4 21.Bxh6 gxh6 22.f6


22...Ng6 23.Ne2 Bc8 24.Qe3 Be6 25.Qxh6+ Black resigned



The Queen returns, and there will be checkmate.

Wednesday, March 13, 2019

Jerome Gambit: Ordinary, With Shot

The following Jerome Gambit game is rather "ordinary", with White slowly gaining control over the game - followed by a nice tactical shot to take the game toward the full point.
  
Wall, Bill - Guest4658155
PlayChess.com, 2019

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 




4...Kxf7 5.Nxe5+ Kf8 



This move always gives me a smile. Black is happy with one piece, and so moves his King, leaving the White Knight hanging. The earliest analysis was by Alonzo Wheeler Jerome, in 1874. "Objectively" best, now, is for the first player to exchange off the piece.

6.O-O 

Bill insists on the piece offer, getting his King out of the way and putting his Rook on the useful f-file.

6...Qf6 

Black still declines.

Bill has seen the tardy 6...Nxe5 (billwall - DeDrijver, Chess.com, 2012, [1-0, 20] ) as well as 6...d6 (Wall,B - Guest399227, PlayChess.com, 2016 [1-0, 17] and Wall,B - Anonymous, lichess.org, 2016 [1-0, 26])

7.Nxc6

Oh, very well...

7...dxc6

Or 7...Qxc6, as in Wall,B - computer level 6, Chess.com, 2017 (1-0, 44)

8.Nc3 Be6 9.d3 Rd8 10.Be3 Bd6 



Black looks like he is doing just fine, but Stockfish 10 is suspicious, and awards White a slight edge. Can you see why? (The "Jerome pawns" can cause mischief.)

11.f4 Bb4 12.e5 Qg6 13.f5 Bxf5 14.g4 Ne7 15.Kh1 Ke8 16.gxf5 Nxf5 

17.Qf3 Nxe3 

Winning the "minor exchange" seems reasonable, but Black would have done better by following up on his 15th move by playing 17...Rf8.

18.Qxe3 b6 19.Ne4 Rf8 20.a3 Be7

The poor Bishop moves, once again.

21.Qh3 Rd5 

It is not immediately clear that this is an error - but that is what chess is all about.

22.Nd6+ 

This move wins the exchange - 22...Rxd6 23.exd6 Qxd6 - if Black responds properly. Instead, he goes astray and allows checkmate.

22...Bxd6 23.Qc8+ Ke7 24.exd6+ Rxd6 25.Rae1+ Re6 26.Qxc7+ Ke8 27.Qc8+ Ke7 28.Qxf8+ Kd7 29.Rf7+  Black resigned

To follow: 29...Qxf7 30.Qxf7+ Kd6 31.Rxe6+ Kc6 32.Qf5+ Kd4 33.Re4 checkmate

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