Sunday, May 15, 2022

Jerome Gambit: Center Explosion


The following Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) game features a clear pawns vs pieces battle in the center of the board. When the smoke clears, Black is better - but not by much. Bringing home the full point requires accurate play, and in attempting that, the defender is overcome.

Thehunter02 - chancecooley

3 0 blitz, lichess.org, 2022


1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.Qf5+ Kd6 8.c3 

Recently seen in PedrosF1 - Raphcobra37, 10 0 blitz, lichess.org, 2021 (1-0, 12). See "Jerome Gambit: Captain's Log").

White wants a pawn center. With a slower time control, or against a computer, this would be unsuccessful - but in a 3-minute game against a human, it is a reasonable chance to take.

8...Qf6

Also possible is the interesting 8...Nd3+.

9.Qxf6+ Nxf6 10.d4 Bxd4 11.cxd4 Nc4 

The Black Knight gets away from the pawn center, but has plans to give itself up when the enemy e-pawn advances. Stronger was 11...Nd3+, but that is not readily apparent at first glance.

12.e5+ Nxe5 13.dxe5+ Kxe5 


Black has come through the storm and is up a pawn. Is his King at risk? White would like to think so.

14.O-O d5 15.Re1+ Kd6 16.Bf4+ Kc6 

Again, decisions have to be made quickly in a blitz game. There is a tactical problem with this King move, as opposed to 16...Kd7

17.Nc3 

Solid play. Development. There was a bit more in 17.Rc1+ Kb6 18.Bxc7+ however. 

17...d4 18.Ne4 Nxe4 

With a plan to further exhange down to a pawn up endgame. 

19.Rxe4 Bf5 

Giving up the pawn for development's sake. The clock might have had a hand in this move choice.

20.Rc1+ 

The killing response.

21...Kd5 21.Re5+ Black resigned




Saturday, May 14, 2022

Jerome Gambit: Taking Charge


It is hard not to chuckle at the following Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) game. White attacks, Black unleashes a violent counter-attack, and White stumbles to meet it.

Just when it looks like Black will prevail, the enemy King leads his troops into battle - and suddenly White delivers checkmate.

Of course. It is the Jerome Gambit.


panpured - motab4

10 5 blitz, lichess.org, 2021


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+ 9.g3 Nf3+ 


The "Nibs" variation.

10.Ke2 

Not the best choice - The Database has 20 games, White scores 18%. The King should go to either f1 or d1.

10...Nd4+ 11.Kd3 Nxf5 12.gxh4 Nxh4 


White has a pawn for two sacrificed pieces. He can count on two things: this is a blitz game, where anything can happen; and White's King has great plans.

13.e5+ Ke6 14.Kc4 Bb6 15.d4 c6 16.Nc3 Ne7 17.Ne4 

17...Nhf5  

Moving the offside Knight back into the action.

18.Ng5 checkmate


Nice.

Friday, May 13, 2022

Jerome Gambit: Familiar


Sometimes a new Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) game seems familiar... Playing the opening, studying the opening, often gives that advantage.

Anso2819 - gr33nr00k

10 0 blitz, lichess.org, 2022


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

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf6 


Black takes a casual approach to defense, guarding his Knight in a way that is immediately refuted.

7.Qf5+ 

A familiar response that starts to gather in the sacrificed pieces.

7...Ke7 8.Qxe5+ Kf7 9.Qxc5 d6 10.Qd5+


Another familiar idea, recently looked at in a similar situation in "Jerome Gambit: The 'Debate' Again". Will Black develop a piece to block the check, offering a pawn?

10...Be6 11.Qxb7 Nf6 


Black pushes his development. He has to - he is down three pawns.

12.Nc3 d5 13.d3 

Reinforcing the center pawn, and opening a line for his Bishop.

13...dxe4 14.Nxe4 Nxe4 15.Qxe4 Re8 


Black's Rook stares down the e-file at White's Queen, and behind her, White's King. This kind of danger should be familiar to White, and he needs a response in order to keep his advantage.

16.Qf4+ Bf5+ 17.Be3 g6 

Instead, the King might have gone to g6.

18.g4 g5 

Things become unglued. Pinning the g-pawn with 18...Qh4 was best.

19.Qxf5+ Kg7 20.O-O-O Black resigned


White has handled what Black has thrown at him. With a safe King, he can use his extra material to gain further advantage.

Black's resignation suggests that he realizes that.


Thursday, May 12, 2022

Jerome Gambit: Exciting


It is always fun to see someone excited about the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+). The following article introduced the classic game Amateur - Blackburne, London, 1884. (The authors apparently use the date from Mr. Blackburne's Games at Chess, "about 1880". This has been corrected by Dr. Timothy Harding - see "Jerome Gambit: Dr. Harding Checks In") The moves have been changed from descriptive to algebraic notation.

Philadelphia InquirerFebruary 19, 1978

Chess

by Leroy Dubeck and J. A. Livingston

Did you ever see the Jerome Gambit? If not, prepare to see it now!

It was developed in America in the latter part of the 19th century and can be properly called the sacrifice variation of the Giuoco Piano. For a long time, it was used with some success, until 1880, when Joseph Blackburne, long the British champion, overwhelmed a British amateur with a series of sparkling sacrifices. The game ends with white having a Q, two Rs, a B and N against two Bs and a N, yet being mated.

George Koltanowski and Milton Finklestein present the game in their stimulating, and refreshing book "Checkmate!" (370 pages). The book deals systematically with mating attacks - how they develop from characteristic positions. The publisher is Doubleday and the price is $9.95...

Amateur   Blackburne

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+?
This characterizes this gambit.
4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ g6!
Blackburne's innovation; prior to this, black resorted to 6...Ke6 to protect his KN.
7.Qxe5 d6 8.Qxh8 
And now white is far ahead in material with a R and 2 Ps for a B.
8...Qh4 9.O-O Nf6 
Bottling the white Q.
10.c3 
Intending to play d4, but Blackburne doesn't grant him the time.
10...Ng4 11.h3 Bxf2+ 12.Kh1 
Not 12.Rxf2 Qxf2+ 13.Kh1 Qf1 mate
12...Bf5 13.Qxa8 
Where else could the Q go?
13...Qxh3+!! 14.gxh3 Bxe4 mate
Blackburne's game is stunning, and is likely the best known Jerome Gambit among chess players, but it is a bit of an exaggeration to call 6...g6 "Blackburne's innovation". The move appeared earlier in Jerome - Norton, correspondence, 1876 (1/2 - 1/2, 20); Vazquez - Carrington, 2nd match, Mexico, 1876 (1-0, 39); Jerome - Whistler, correspondence, 1876 (0-1, 15); and Jerome - Jaeger, correspondence, 1879 (0-1, 45).

Wednesday, May 11, 2022

Jerome Gambit: Battered But Unbowed (Part 3)


[continued from the previous post]

perrypawnpusher - Chess Titans

2022 

42.Ra1 

I wanted to get my Rook in front of the Kingside pawns. Interestingly enough, Stockfish 14.1 suggests that White's King and Knight move over and gang up on the pawns, instead.

42...Kxb4 

I suspect that if I were playing a human opponent, the defensive plan would be to get all the pawns off the board and force me to win with Rook plus Knight against Rook. (It is a basic draw, except for a few positions.)

43.Rg1 Rd8 44.Ke3 Kc3 45.Ne5 Rc8 46.Rxg7 h6 47.Rh7 Rb8 48.Rxc7+ Kb3 49.Rh7 Rb6 


Neither I nor my opponent was particularly skilled in endgame play, but I think I was doing better.

50.f5 Rf6 51.Rf7 Ra6 52.Rh7 Ra5 53.d4 Ra6 54.Ng6 

Nice block.

54...Ra5 55.Ke4 Ka3 56.Rxh6 

Stronger, but not required, was 56.f6.

56...Ra6 57.Ke5 Kb4 58.f6 Ra7 59.Ne7 Kc4 60.d5 Ra5 

There is little to be done to stop the pawn from promoting.

61.f7 Ra8 62.Rc6+ Kb3 63.Rc8 

Nice.

63...Rxc8 64.Nxc8 Ka2 65.f8=Q 

65...Kb1 66.Qf2 Ka1 67.Nb6 Kb1 68.Nc4 Kc1 69.Qd2+ Kb1 70.Qb2 checkmate

Whew! 

I wondered exactly how much of an accomplishment this win was, so I went searching on the internet, and found this from a discussion on the strength of Chess Titans

victor890

Jan 29, 2017    0  #10

 Chess Titans for Windows 7/8 is rated at ELO 1800.

Level 1 is rated 600, Every level after that add 133.33 to it, at levels 3,6 and 9 add 133.34.

You end up with 1=600, 2=733.33, 3=866.66, 4=1000.00, 5=1133.33, 6=1266.66, 7=1400, 8=1533.33, 9=1666.66, 10=1800.

Each level can vary by +/- 4%, that's why sometimes you win easily and sometimes it pulls off some great move outta nowhere, but it's still a low level A.I. and won't see more than 2 or 3 moves ahead.

All of which left me feeling a bit like the Gallant Tailor from the story by The Brothers Grimm...

Tuesday, May 10, 2022

Jerome Gambit: Battered But Unbowed (Part 2)

 


[continued from the previous post]


perrypawpusher - Chess Titans

2022

If I was going to refuse to resign, I needed to at least develop my pieces, which I proceeded to do, even at the cost of some material.

17.Nc3+ Kd6 18.h3 Bf5 19.d3 Rae8 20.Bd2 Nxh4 

21.Na4 Bf2 22.b3 Nf3 23.Rf1 Bd4 24.c3 Nxd2 25.Kxd2 Be3+ 26. Kc2 Bxh3 27. Rf3 Bf5 

28.Nb2 Kc6 29.Nc4 Bc5 


It was time (again) to see how much "contempt" Chess Titans had for a draw.

30.Na5+ Kb6 31.Nc4+ Kb5

Oh, well, no draw by repetition.

32.a4+ Kc6 33.Na5+ Kb6 34.Nc4+ Ka6 

As above, but the King probably should have returned to c6.. 

35.b4 Re2+ 

Programmers of early computer chess engines worked to make their programs stronger. Now, with the top engines playing at super grandmaster level, the programmers have to find a way to make them accessible to the average club player, by making them weaker. See "Artificial Ignorance (Part 1)"

The text move is very human like, which is not a good idea in this situation.

36.Kd1 Bxb4 

Another slip. You might guess that Chess Titans was experiencing time control issues, but we were not playing with a clock.

37.cxb4 b5 

Black has to do something about the checkmate threat.

38.axb5+ Kxb5 39.Kxe2 Bg4 40. Rxa7 Bxf3+ 41. Kxf3 Rc8 


Now I had the extra piece. True, Chess Titans had the protected, passed pawn; and that made me wonder, how good was it in endgame play?

[to be continued]


Monday, May 9, 2022

Jerome Gambit: Battered But Unbowed (Part 1)



Not too long ago, I was feeling bored, and decided that what I needed was a chess game. Instead of jumping online at FICS or Chess.com, I challenged my old favorite punching bag, the Chess Titans program. "Just to make it interesting," I set it to an intermediate level.

Almost immediately, I was the one being punched. Things went horribly wrong, and I could have resigned at a number of points - but I was playing the Jerome Gambit, by golly, and I was going to hang on as best I could!

Oddly, the computer played what seemed to be a very human-like move, and suddenly the game began to swing my way. In the end, the computer held on and forced me to checkmate it. 


perrypawpusher - Chess Titans

2022


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+ 

As I wrote, years ago,

The first example in my database of a game with 8...Qh4+ is an imaginary game presented in the June 1899 issue of the American Chess Magazine. In an article titled "A CHESS SCRAP" by "R.F." it is supposedly an early example of chess-by-telephone – filled with all of the difficulties that came from using a then new and unproven technology. 

9.g3 Nf3+ 


Seen in "R.F." - "Nibs" telephone chess, 1899 (1-0, 12)

I was not going to see a repeat of my earlier game, 9...c6 10.Qxe5 checkmate, Rick - Chess Titans, beginner level, 2021

By the way, The Database has 134 games with this position, with White scoring 59%, despite Komodo 12.1.1 assessing Black as about 1 3/4 pawns better. Things are complicated, and the player with the better understanding of specific tactics and strategy will have the advantage. 

10.Kd1 Ne7 

Likewise, no chance for 10...Qe7 11.Qd5 checkmate as in three of my human vs human games.

11.e5+ Kc6 12.Qe4+ d5 13.exd6+ 

13...Kxd6 

I remember years ago hearing from a chessfriend, "Mad Dog", that he was playing a Jerome Gambit correspondence game, and had just won his opponent's Queen. He was looking forward to a win - but was disappointed in the end. It turns out that the loss of the Queen was a sacrifice. See abhailey - peonconorejas, net-chess.com, 2008 (0-1, 20).

In "Mad Dog's" game, Black played the more accurate 13...Nd5, and after 14.gxh4 he played 14...Bg4

14.gxh4 Bg4 

What difference does Black's 13th move make? With Black' Knight still on e7 (instead of on d5) and no pawn at d6, White now has 15.f5!?, when 15...Ne5+ is not as strong, since 16.Ke1 is not as well met by 16...Rae8. Black does best to meet 15.f5 with the logical 15...Nxh2+ when his pieces are suspended like acrobats after 16.Ke1 Nxf5 but he still wins White's Queen (and is better) after 17.d3 Rae8 18.Bf4+ Kd7 19.Rxh2 Rxe4+ 20.dxe4, according to Stockfish 14.1.

I actually have a game in The Database that features 15.f5!?, NN - NN, 2020 (1-0, 31). 

The earliest related game that I have is ionman - mscp, 5 0 blitz, FICS, 2005 (1-0, 53) which continued 15.Qa4+. A recent game, amir198 - ameeralsallehi, 5 0 blitz, lichess.org, 2021 (1-0, 28), continued 15.Qxb7.

Complicated!

15.Qd3+ 

A frantic move. I did not know it at the time, but the move had been played 4 years ago in mwafakalhaswa - Masali007, 3 0 blitz, lichess.org, 2018 (1-0, 37). Black's response in that game, 15...Ke6, allowed White to untangle things a bit, to his benefit, with 16.Re1+!?

15...Nd5 16.Qxd5+ 

I could not think of anything else to do except return the Queen. After the game, Stockfish 14.1 laughed and assessed Black as a Queen better. Certainly 16.Nc3 was more to the point.

16...Kxd5 

"Well, here's another nice mess you've gotten me into," said Oliver Hardy to Stan Laurel, or me to the Jerome Gambit.

White has two pawns for a piece, but his King, near home, is in far more danger than Black's King in the center of the board.

[to be continued]