Thursday, September 17, 2020

Jerome Gambit: More Research


More research from Dan Watson on the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+). His source is The Earth (Burlington Vt)  January 7, 1899, page 8. 

I have added diagrams. My notes are in blue - Rick.


Barnett - Gingras

Vermont, 1899


The game between Barnett of Burlington and Gingras of Winoski resulted in a win for the latter, showing that the Jerome gambit is too hazardous when the opponent is a strong player, as Mr. Gingras is, and the loss of the bishop and knight at the outset, can not be compensated for by the advantages of position. Following is the game.

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.d4 


The usual continuation here is 6.Qh5+ and is probably better than 6.d4

6...Qh4 

Well played, leading to a strong defense.

I have only one earlier example of this line in The Database, Sorensen - X,  Denmark, 1888 (1-0, 27). - Rick

7.O-O d6 8.dxe5 

In this complicated line, White would have done better to capture the Bishop. - Rick

8...Qxe4 9.Nd2 Qd5 10.exd6 Bxd6


11.c4 Qd3 12.Qh5+ Qg6 13.Qh4 


This was ill considered, and led to the exchange of queens, which White was anxious to avoid. 

13...Qh6 14.Nf3 Qxh4 15.Nxh4 Nf6 16.Be3 b6 17.Nf3 h6 


It is difficult to see any compensation for the sacrificed piece, beyond the extra pawn. - Rick

18.Rac1 c5 19.Rfe1 Bb7 20.Nh4 Rad8 21.h3 Ng8


The beginning of a well devised and strong attack.

22.Rc3 Ne7 23.g3 Rhe8 24.Ra3 a5 25.Rb3 Bc7 26.Bxc5


Well planned, but premature, not having well considered Black's next move, which was the closing tour of the Kt in his ferocious perigrinations. Mr. Gingras is, undoubtedly, one of the strongest players in the state, and this game demonstrates his superior ability.

26...Nf5 27.Be3 Nd4 28.Rd3 Ne2+ 29.Kh2 Rxd3 30.Rxe2 Rd1 

31.f3 Rd3 32.Ng2 Bxf3 White resigned


I would have enjoyed seeing a rematch, where the winner of this game played White - with the Jerome Gambit. - Rick


Wednesday, September 16, 2020

Jerome Gambit: Startling Discovery


Dan Watson continues to do research on the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) and its inventor (see "Alonzo Wheeler Jerome Update"). He has recently shared some historical news stories, and an over-the-board game that I never seen before.

Most interesting, he has a correction to the year that a particular Jerome Gambit game was played - instead of about 25 years after Jerome's analysis in the Dubuque Chess Journal, it appeared about a decade before Alonzo Wheeler Jerome debuted his opening.

His source is The New York Clipper,  vol. 38 no. 27, Saturday September 13, 1890, which I quote, below, while adding diagrams. My notes are in blue - Rick.


Tonetti - Ruggieri

Rome, 1863

Up until I received this article, I had dated this game 1890. - Rick

The following dashing skirmish is historically interesting as a commentary on the propensity to multiply the nomenclature of the gambits. It was played at Rome in September 1863 - Nuova Riviste.

The Chess columnist in the Clipper is referring to Nuovoa rivista degli scacchi, Genn. - Febb. - Marzo, 1890, Anno XVI, p.34. - Rick

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

But we never heard that the brilliant Italian master ever demanded that it be dubbed the "Tonetti gambit;" in fact, we suppose that the variation has been known ever since there was a "Giuoco Piano".

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 


7.Qf5+ Kd6 8.d4 Bxd4


To this point the game may be found in Miller's Cook's Synopsis. White's 9.. [sic] seems a strong and important variation.

In 1884, J.W. Miller, of Cincinnati, published Cook's Synopsis of Chess Openings A Tabular Analysis by William Cook, With American Inventions in the Openings and Fresh Analysis since 1882 - Rick

9.Bg5 Nf6 10.c3 Bc5 11.b4 Bb6 12.O-O Re8 


13.Rd1+ Kc6 14.b5+ Kxb5 15.Na3+ Ka5 16.Nc4+ Kb5 17.Nxe5 d6

18.Rab1+ Ka6 19.Qf3 c6 20.Qd3+ Ka5 21.Nc4+ Ka6 22.Nxb6+ Ka5 23.c4 Black resigned


Dan also sent an English translation of Italian commentary on the game

This game played in Rome in September 1863 proves how the originate attack, of modern origin, put into vogue in 1874 by A. W. Jerome, an American player, practiced much earlier in the Roman academy. Unfortunately, Italians often leave the glory and the name of their discoveries to foreigners.

This game is the earliest Jerome Gambit that I have in The Database. I have focused my research on 1874 (the date of Alonzo Wheeler Jerome's first published article on the gambit) and later. Clearly, I need to return to the Morphy era to search some more.

By the way, in 1877 Nuovoa rivista degli scacchi published a game by Alonzo Jerome playing his gambit, as well as Sorensen's analysis of the Jerome Gambit, and in both cases, did not mention the Tonetti - Ruggieri game. 

Any Reader who has more information on this game, Tonetti - Ruggieri, Rome, 1863, is encouraged to share.


Tuesday, September 15, 2020

Jerome Gambit: Stockfish vs Stockfish



The final game from Boris shows that Stockfish 11 cannot give itself "Jerome Gambit odds". Go figure.

I don't have suggestions on how to improve White's chances, except "Don't play the Jerome Gambit against computers".


Stockfish 11 - Stockfish 11

computer vs computer, 2020


1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.f4 d6 

The "silicon" or "annoying" defense, so called because it is the choice of different computer programs, and can be quite annoying to face. White can have a hard time getting something started against the centralized King.

8.fxe5 dxe5 9.Qh3+ Ke7 10.Qg3 Kf7 

11.Rf1+ Nf6 12.Qxe5 

White has 2 pawns for the sacrificed piece, and in a club level human vs human game, might have some chances. 

12...Bd4 13.Qh5+ Kg8 14.Qe2 Be6 


15.h3 c5 16.c3 Be5 17.d3 Qd6 18.Be3 Rd8 19.Nd2 Bg3+ 20.Kd1 Qxd3 21.Qxd3 Rxd3 


22.Rf3 Be5 23.Kc2 Rd8 24.a4 h6 25.a5 Kh7 26.g4 Nd7 27.Rg1 g5 28.Rf2 Kg6 29.Rfg2 Rhf8 


Black's Rooks occupy the 2 open files. White's Rooks over-protect a pawn.

30.b3 Bd6 31.Rf1 Rxf1 32.Nxf1 Rf8 33.Nd2 Bc7 34.Rg1 Bxa5 35.Ra1 Bb6 36.b4 cxb4 37.Bxb6 axb6 38.cxb4 


White's passed pawn is not sufficient compensation.

Black makes use of his extra piece.

38...Rc8+ 39.Kd3 Ne5+ 40.Kd4 Nc6+ 41.Kc3 b5 42.e5 Bd5 43.e6 Bxe6 44.Re1 Bd5 45.Nb3 Nd8+ 46.Nc5 Ne6 47.Rd1 Nf4 48.Kb2 Re8 49.Nd7 Re3 50.Nc5 Rxh3 White resigned

I suppose I'm going to have to ask Stockfish 11 to spend a bit more time trying to solve the "silicon" defense.

By the way, The Database has 214 games with the "silicon" defense, and White scores 55%. Again, go figure.

Monday, September 14, 2020

Jerome Gambit: Odds Are It's A Win


In the following game, Boris gives his opponent "Jerome Gambit odds" and finishes the game quickly against an insufficient defense.

Boris - NN

2020


1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.Qf5+ Kd6 8.f4 g6

A mistake. Not well thought through. When in doubt, attack the Queen.

9.Qxe5+ Kc6 10.d4 

Yes, yes, Boris knows that the Rook at h8 is en prise. Black's 8th move suggested that it was time to focus on checkmate. 

10...Bb4+ 


Black stumbles upon his best chance, when he makes his next move. He had some crazy chances right now with 10...Qh4+ 11.g3 Qh5. What follows (according to Stockfish 11) is funny: 12.f5 (threatening mate; 15.Qxh5 gxh5 16.dxc5 works, too) Bd6 13.d5+ Kb6 when 14.Qxh8?! would allow Black to hunt the White King after 14...Bxg3+ 15.Kd2 Bf4+ 16.Kd3 Qf3+ 17.Kc4 Ka6 18.Bxf4 b5+ 19.Kd4 Qxf4 20.Rd1 c5+. White would still objectively be better, but why seek out that pain? Instead, 14.Qc3 Ka6 15.Qd3+ followed by developing the Queenside and pressing the attack against the enemy King.

11.c3 Qh4+ 12.g3 Bxc3+ 13.Nxc3 Qh5 14.f5 b5 15.Qd5+ Kb6 16.Qxb5 checkmate




Sunday, September 13, 2020

Jerome Gambit: Already Heading For Trouble


The following game is another good example how defenders of the Jerome Gambit (1.e4 e5 2.Bc4 Nc6 3.Nf3 Bc5 4.Bxf7+) can quickly get into trouble by playing a move that looks only indifferent, but which contains significant risk.


Boris - NN

2020


1.e4 e5 2.Bc4 Nc6 3.Nf3 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.f4 Qf6 

We have seen this before in Boris' games. Check out "Jerome Gambit: Center Action". The move was suggested by Eric Schiller in his Unorthodox Chess Openings (1998).

8.Rf1 

The Database has 89 games with this position. White scores 65%.

An interesting alternative is 8.Nc3, which shows up 11 times in The Database, scoring 27%. See "Play The Jerome Gambit Quad".

8...g6 9.Qh3+ Kd6


Already heading for trouble. (That's the Jerome Gambit for you.) It wasn't immediately apparent, but he should have returned the piece with 9...Ng4.

10.d4 Bxd4 

This line demands more creativity. Instead, 10...Nd3+ 11.cxd3 Qxd4 takes advantage of White's King being placed in the center. The position would be unclear

11.fxe5+ Bxe5 12.Rxf6+ Nxf6 


White has a Queen for a Rook and a Bishop.

13.Bg5 Bxb2 14.c3

Trapping the Bishop. Also playable was 14.Nc3, as 14...Bxa1 15.e5+ Kxe5 (15...Kc6 was better, but still losing) would lead to mate after 16.Qe3+.

14...Nxe4 

Careless. Boris doesn't usually leave pieces lying around.

15.Qd3+ Kc6 16.Qxe4+ d5 17.Qa4+ b5 18.Qa5 Bxa1 19.Bf4 

19...Re8+ 20.Kd2 Re7 21.Na3 Rb8 22.Nc2 Rb7 23.Nxa1 Rf7 


24.Be3 Bf5 25.Bxa7 Kd6 26.Nc2 Bxc2 27.Kxc2 Rxa7 28.Qxa7 Kc6


Unless the clock is a factor, the game is largely over.

29.a4 bxa4 30.Qxa4+ Kb6 31.c4 Rf2+ 32.Kc3 dxc4 33.Qxc4 Rxg2 


It is true that a Queen vs Rook endgame, with no pawns, can be very difficult to win; perhaps this is why Black is hanging on.

34.Qd4+ Ka6 35.Qa4+ Kb6 36.Qd4+ Ka6 37.Qf4 Rg1 38.Qh6 Black resigned







Saturday, September 12, 2020

Jerome Gambit: Very Complicated and Dangerous

Bert gif


In the following Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) game, play enters the very complicated and dangerous (for both players) historical "Nibs" variation. Only when Black overlooks a few things can White take control of the game, and take the full point. The notes only touch on a few of the difficulties.

For the  origin story of the line, see "Repairing A Variation (Part 2)"


Boris - NN

2020 


1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.Qf5+ Kd6 8.f4 Qh4+ 

Sometimes Black plays this move to weaken the White Kingside, before retreating his Queen to f6.

9.g3 

9...Nf3+ 

Black's counter attack is very strong. I have had my own troubles with the line (see "Jerome Gambit: Against the Titans"), and my record of 16 - 3 is a bit misleading.

Stockfish 11 shows the tiniest preference (about 1/4 pawn) at 30 ply for this move over 9...Qf6. 

10.Kd1 

The first big decision. His Majesty enters A Dangerous Place.

The Database has 26 games with 10...Kd1; White scores 65%. The Database has 19 games with 10...Kf1; White scores 74%. (Don't bother with 10...Ke2. White has scored 1 - 9 - 1 - 14% - with the move, according to The Database. See "Jerome Gambit: Amusement".)

Both Komodo 10 and Stockfish 11 clearly favor 10.Kf1. How does that fit with the practical results reflected in The Database? As always, the player more comfortable and more familiar with Jerome Gambit positions tends to do better, despite "objective" measurements.

10...Ne7 


Another developing move. For a long time I was convinced that this was the strongest continuation, although lately the computer engines have been pushing 10...Qh6 as even stronger. (The Database shows two games, with White scoring 50%).

11.e5+

White goes after the King. The computer engines suggest that he sigh deeply and give up on the idea of rescuing his Queen, settling for 11.Qxc5+ Kxc5 12.gxh4 with Black clearly for choice. 

11...Kc6 

The only move.

12.Qe4+ d5 

13.exd6+ 

Boris noted

Here my opponent was shocked, spent much time and lost his confidence - he was waiting for Qxf3 to execute a totally crushing move Bg4!!!, but he completely forgot the possibility of en-passant. 

Black has only one move that keeps the advantage, and he doesn't find it.

13...Kxd6 

Through the fog he had to see 13...Nd5 14.gxh4 Bg4, with the advantage, for example 15.c4 Ng5+ 16.Kc2 Nxe4 17.cxd5+ Kxd6 and White's extra pawns are too weak, while Black's development (and extra piece) likely give him a winning advantage.

14.gxh4 Bg4 


The position still looks very scary for White, but he has a new response that keeps Black's advantage small.

15.f5 Nxh2+ 16.Ke1 Nf3+ 


Rescuing the Knight, with check, looks reasonable, but this is where the complications overwhelm Black. He needed to find 16...Nxf5 17.Rxh2 Rae8 18.d3 Rxe4+ 19.dxe4 Nd4 when his lead in development counts more than White's material advantage of the exchange.

17.Kf1 Bxf5 18.Qxf3 Rhf8 19.Ke1 Rae8 


White's Queen is facing two Bishops, a Knight and two Rooks. Boris gives the proper perspective, though

Funny position - he seems to have two horrific discoveries, however there are no good attacks with the knight and lightsquared bishop, so I just smiled and made a room for my bishop, also taking e4 away from his bishop. 

20.d3 

If you are not chuckling at this move, you have not been paying attention. Boris has ice water in his veins.

20...h6 

Stockfish 11 worries that Black has allowed the game to slip away. White's Queen-for-Knight material advantage is now the most important factor.

21.Nc3 a6 22.Bf4+ Kd7 23. Kd2 Kc8 


Black's King is safe, but so is White's.

24.Rae1 Bb4 25.a3 Bxc3+ 26.bxc3 Rf6 27.Rhg1 Bg6 

28.Re2

Boris effectively described the situation

Black has no useful move. 

28...Kb8 29.Re3

Boris, again

At first I wanted to double rooks and win his knight, but now I realised that a rook-queen battery is better, because I can give up my bishop for his bishop with an invasion on the 7-th rank. 

29...Kc8 30.Qe2 Rxf4 31.Rxe7 Black resigned

Whew! That was quite a game. Great win, Boris!