Saturday, March 16, 2024

Another Jerome Gambit Practice Tournament (Part 11)

Chess is a game of decisions. 

In the following game, a miniature, Black chooses one capture over another, and, later, one retreat over another.

The results are significant.

Duckfest - Chioborra

Jerome Gambit Practice Tournament, Chess.com, 2023

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

4...Kxf7 5.c3 

Another "modern" line of the Jerome Gambit, as opposed to 5.Nxe5+, which was Alonzo Wheeler Jerome's choice.

5...Nf6 6.d4 exd4 7.cxd4 

White has a pawn center. Black attacks it.

7...Bb4+ 8.Nc3 Nxe4 9.O-O 

How odd that this position is similar from one from Greco, in 1620, after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Nc3 Nxe4 8.O-O. 

In the mean time: Decisions, decisions, decisions...

How should Black capture on c3?

There are 24 such positions in The Database.

9...Nxc3 

12 of those 24 times, Black chose 9...Nxc3 and was rewarded with 6 wins.

10 times, Black chose 9...Bxc3 and was also rewarded with 6 wins.

(Once Black lost with 9...d5 and won with 9...Rf8)

Stockfish 15.1 weighs in on the discussion: 9...Nxc3 (27 ply) leads to a position that is evaluated as about even, while 9...Bxc3 (27 ply) is evaluated as being about 3 pawns better for Black. 

10.bxc3 Bd6 

More to the point was 10...Be7, after which 11.d5 stirs things up: 11...Re8 (11...Nb8 12.Ne5+ Kf8 13Qf3+ Bf6 14.d6 cxd6 15.Ba3 g6 16.Qd5 Bxe5 17.Qxe5 Kg8 18.Qd5+ Kg7 19.Bb2 Rf8 20.c4+ Rf6 21.g4 h6 22.f4 Kf8 23.Qd4 d5 24.g5 d6 25.Qxf6+ Qxf6 26.Bxf6 hxg5 27.cxd5) 12.dxc6 dxc6 13.Qb3+ Qd5 (13...Be6 14.Ne5+ Kf6 15.Bg5+ Kf5 16.g4+ Kxg5 17.Qxe6 g6 18.Nf7+ Kh4 19.Nxd8 Raxd8 20.Qf7) 14.c4 Qd6 15.Bb2 Bf5 with an equal position.

11.Ng5+ Ke7 

The best response was 11...Kf8, although White would still be better. 

For the record: 11...Kg8 12.Qb3+ Kf8 13.Qf7 checkmate. 

12.Re1+ Kf6 

Black had to give back a piece with 12...Be5, although things would still unravel for him: 13.d5 h6 14.dxc6 d6 15.Qd5 hxg5 16.Bxg5+ Kf8 17.Rxe5 bxc6 18.Qxc6 Qd7 19.Qf3+ Qf7 20.Qxa8 dxe5 21.Qxc8+ Qe8 22.Qf5+ Kg8 23.Re1.

Now, mate is forced. 

13.Qf3+ Kg6 14.Qf7+ Kh6 15.Ne6+ Qg5 16.Bxg5 checkmate





Friday, March 15, 2024

Jerome Gambit:Why?

If you came upon a YouTube site with the header "Subscribe if you laugh" and you noted that the host, whose handle is SkillerEP, further referenced "Canadian Chess Comedy" - you would know that you had arrived at a place of chess creativity & humor.

You would hardly be surprised to find a short video titled "Why the Jerome Gambit Works", would you? 

(I have spent over two decades years trying to answer that Why question.)

Still, it makes you want to click on the link, doesn't it? And on the links of some of his other 204 videos, as well. You should. Go ahead.

When it comes to the Jerome Gambit, it must also be mentioned that SkillerEP (a significantly stronger player than I am) has 367 games in The Database. 

SkillerEP's commentary on his blitz game - "Jerome Pioneer vs Angered Toddler" - is entertaining, insightful and well worth listening to.

Chess. Psychology. Decimation.

Jerome Gambit.


Thursday, March 14, 2024

Another Jerome Gambit Practice Tournament (Part 10)

Of the following game, it can be said that Black was doing very well - until he wasn't.

Sharp openings like the Jerome Gambit can be like that.

Chioborra - LemonOtter42

Jerome Gambit Practice Tournament, Chess.com, 2023

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

4... Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.Qh3+ 

This was looked at in Yury V. Bukayev's posts "JG: The New (Parts 1, 2 & 3)",

7...Kd6 8.Nc3 Qf6 9.O-O 

The alternative, 9.d4, was suggested by Yury V. Bukayev in the post  "JG: The New (Part 3)".

9...Ne7 10.d3 

White goes for solid play.

He had more aggression in 10.d4, if only because 10...Bxd4 11.Nb5+ Kc5 12.Nxd4 Kxd4 would then lead to checkmate: 13.Qe3+ Kc4 14.a4 Nf3+ 15.gxf3 Qd4 16.Qa3 Qxe4 17.fxe4 Kd4 18.Qb4+ Ke5 19.Qxe7+ Kd4 20.Be3+ Kc4 21.Qc5#.

The Database has 3 other games with 9...Ne7, but all continue 10.Nb5+.

10...Kc6 11.Be3 Bxe3 12.fxe3 Qg5 


Black has an extra two pieces to compensate for his lost two pawns.

13.d4 d6 14.d5+ Kc5 15.Qg3 Ng4 


After White's inaccuracy at move 10, Black should have taken the money and run - exchanged Queens and pressed on in a Queenless middlegame.

16.Qe1 Qh4 

Oh.

An idea that works in the position: 16...Qxe3+ 17.Qxe3 Nxe3

An idea that does not work in the position: 16...Qh5 (still with the checkmate threat) 16...Qh5 17.b4+ Kb6 18.Na4+ Kb5 19.c4+ Kxc4 20.Qe2+ Kxb4 21.Rab1+ Ka3 22.Qb2+ Kxa4 23.Qb4#.

17.Qxh4 

The game is pretty much over after the Queen is lost.

Tactical maniacs might point out that it wasn't even necessary to take Her Majesty, as there was a forced checkmate similar to the one above: 17.b4+ Kb6 18.Na4+ Kb5 19.c4+ Kxc4 20.Qe2+ Kxb4 21.Rab1+ Ka3 22.Rb3+ Kxa4 23.Qb5#. 

17...Ng6 18.Qe1 Rf8 19.Qe2 a6 20.Rxf8 Nxf8 21.Rf1 Ng6 22.Na4+ Kb4 23.a3+ Kxa4 24.Qc4+ Ka5 25.Qb4 checkmate




Wednesday, March 13, 2024

Another Jerome Gambit Practice Tournament (Part 9)

Here is another example of tactics winning the day in a complicated Jerome Gambit position.

LemonOtter42 - KevinOSh

Jerome Gambit Practice Tournament, Chess.com, 2023

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

4...Kxf7 5.d3

This "modern" version of the Jerome was LemonOtter's choice of opening line in each of his games with White in this tournament.

5...d6 6.Ng5+ 

This check is tempting, but does not lead to anything. The Database has 147 game examples, with White scoring 26%.

6...Kf8 

6...Ke8 might have been better. See below.

7.Nc3 h6 8.Nf3 Bg4 


The game has gotten away from White. Moreover, there are complications ahead, and whoever does better with them will get the full point.

9.Nd5 Nd4 

The Knight is not as secure as Black thinks. White can now play 10.Nxd4, as 10...Bxd1 can be met by the fork 11.Ne6+. (Black does best with 10...Qh4.)

10.b4 c6 11.bxc5 

11...cxd5 

First Black should have played 11...Bxf3 12.gxf3 and then 12...cxd5 because this move could have been met by 12.Nxd4.

12.exd5 dxc5 

Again, first 12...Bxf3

13.h3 Bxf3 14.gxf3 Qxd5 


Black now finishes up.

15.c3 Qxf3 16.cxd4 Qxh1+ 17.Kd2 Qxd1+ 18.Kxd1 exd4 

19.Ba3 b6 20.f4 g5 21.fxg5 hxg5 22.Kc2 Rxh3 23.Rf1+ Kg7 

24.Rf5 Kg6 25.Re5 Nf6 26.Re6 Re8 27.Rd6 Re2+ 28.Kb3 Rxd3+ 29.Ka4 Rxa2 30.Rc6 Rdxa3+ 31.Kb5 Rb2+ 32.Kc4 Rc3 checkmate




Tuesday, March 12, 2024

Another Jerome Gambit Practice Tournament (Part 8)


The following game contains a well-told tale. The Jerome Gambit starts with a lot of bluster, often with the game ending quickly. If the defender defends well, then White must yield ground begrudgingly in worse positions, constantly looking for a tactical shot to even things - or bring home the full point.
 

Duckfest - KevinOSh

Jerome Gambit Practice Tournament, Chess.com, 2023

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

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf8 

7.Qxe5 d6 8.Qg3 Qf6 9.Nc3

With Black's Queen on f6, it is logical to develop the Knight and threaten Nd5.

9...Ne7 10.O-O h5 

Interestingly, this is Stockfish 15.1's suggestion, as is White's response.

11.h4 Bg4 12.d3 c6 


Black hopes to keep the White Knight out of d5 for good, but he could also have moved his King off the a3-f8 diagonal with 12...Kg8

13.Be3

There was also the chance to gain the "minor exchange" with 13.Na4 followed by exchanging. This would give White a slight edge.

13...Bd4 14.Bf4 

Targeting the weakened d6 pawn. Now, either 14...Be5 followed by exchanges, or 14...Ng6 15.Bxe6+ Kg8 16.Kh1 Rd8 (Stockfish's line) would be good for Black.

14...Rd8 

Good as well: Black shores up his pawn.

15.Nd1 


Hoping for enough time to play c2-c3 and blunt Black's battery of Bishop and Queen.

Black should now ignore the White b-pawn (which he does) and play 15...Be2 or 15...Bxd1 or even 15...Bc8; or anticipate things and move the other Bishop to e5.

Instead, unfortunately for him, he swats at White's Bishop with his own exchange-Knight-for-Bishop idea.

15...Ng6 16.Bg5 Black resigned

This skewer will cost Black his Rook.

The try 16...Nf4, hoping to answer 17.Bxf6 with the Knight escapade 17...Nxe2+ 18.Kh2 Nxg3 19.Bxd4 Nxf1+ 20.Kg1 Nd2 21.Be3 Nxe4 22.dxe4 Bxd1 23.Rxd1 b6, going up the exchange for a pawn, falls at the start to 17.Bxf4, losing a piece.



Monday, March 11, 2024

Jerome Gambit: The Fun Continues

The second round of the "Giuoco Fun" tournament at Chess.com (see "Jerome Gambit: The Battles Continue") has started, and I am matched with kertt1, Borislav007, Igorrud and SPK_316.

I am playing the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) in my four games as White.

I suppose that I could also be defending against the Jerome, but two games, already, have chosen different paths. We will see.

Sunday, March 10, 2024

Another Jerome Gambit Practice Tournament (Part 7)

In the following game, Black uses Alonzo Wheeler Jerome's defense against Alonzo Wheeler Jerome's gambit, so it can be argued that Alonzo Wheeler Jerome was vindicated.

"For Jerome!" as Canadian Grandmaster Aman Hambleton might say.


KevinOSh - Duckfest

Jerome Gambit Practice Tournament, Chess.com, 2023

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

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf8 

Seen in Jaeger - Jerome, correspondence, 1880 (0-1, 14).

7.Qxe5 d5 

This is, by far, the strongest move in this position, although, according to The Database, it is quite rare. White has scored 2- 8 when facing this line. Fair warning.

8.d4 Bb6 9.c3 Nf6 10.Bg5 

There was also the possibility of reinforcing the center with 10.f3, a new idea. 

10...Kf7 

Or he could have tried 10...dxe4 11.O-O h6 12.Bxf6 Qxf6 13.Qxe4 Kf7 14.Re1 Rf8 15.Nd2 Kg8, also, having castled-by hand, with the advantage of a piece for two pawns, and the two Bishops.

11.O-O Re8 12.Bxf6 Qxf6 13.Qxd5+ Be6 14.Qxb7 

This is riskier than 14.Qh5+ or 14.Qb5, but White has to do something

14...Qg5 

This move is aggressive-looking, but it actually leads to an even position. He could have pushed his opponent around a bit more with 14...Bc4 15.e5 Qe6 16.Rc1. 

15.f4 

Overlooking something. White's chances rested with 15.Qc6 Kf8 and then 16.f4

15...Qb5 

White's Queen now has nowhere to go. Black has two threats now.

16.a4 

There is no joy in 16.Rf2 Rab8, either, but it addresses one of the threats. Instead, the text hopes to move Black's Queen, so that White's Queen can move to freedom.

16...Bxd4+ White resigned