Thursday, February 20, 2025

Jerome Gambit: Whatever Happened To...? (Part 2)

 


A couple of posts ago (see"Jerome Gambit: Whatever Happened To...?") I queried

I was wondering the other day whatever happed to a couple of nefarious chess opening variations, the OMG Variation and the Face Palm Variation.

Those were 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Ng5 and 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Ng5+.

I then presented a couple of online blitz miniatures played by strong players (I did not give their names), and suggested an amount of "fun" must have been involved.

Chessfriend Yury V. Bukayev followed up with an email with his own possible explanatory hypothesis

Yes, this game [the second] (like another one) is strange. I can build some hypotheses about it. In fact, the Jerome gambit chess player (White) made two strange chess moves - 5.Ng5+ and 7.Nxh7+. His opponent made strange chess King moves. So my task here is to explain the play of both opponents. My first hypothesis is that both players wanted to play not ordinary chess, but "dying King's light pieces against dying King" new chess variant (?). In this case, White's moves - 4.Bxf7+, 5.Ng5+, 7.Nxh7+ - were made with a goal to lose pieces. So, it maybe, both players were glad as a result of this rapid checkmate after capturing of all King's light pieces: each of opponents thought, it maybe, that he isn't a loser here. In fact, I don't know rules of this possible new chess variant.

This sounds a bit like "losing chess" or "antichess" - interested Readers can check out the Lichess Antichess World Championship page at Perpetual Check.  

 

Wednesday, February 19, 2025

Jerome Gambit: Comparable

Two openings - the Jerome Gambit and the Abrahams Jerome Gambit - are similar in some ways, and different in others.

In the following game, lichess.org player feritTurkey demonstrates the benefits of an opening line that he has played at least 373 times.


feritTurkey - makoppo

2 1 bullet, lichess.org, 2024

1.e4 e5 2.Bc4 Bc5 3.Bxf7+

The Abrahams Jerome Gambit. It appears in 19,021 games in The Database, with White scoring 51%. 

That compares with 39,663 games in The Database with 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+, scoring 52%.

3...Kxf7 4.Qh5+ g6 

With 2 minutes of thinking time for the game, this would seem a resonable move - especially if the defender were familiar with the Jerome Gambit - but here the only move to maintain Black's full advantage is 4...Kf8

5.Qxe5 Qf6

Again, the proper move is 5...Bxf2+, i.e. 6.Kxf2 Nf6 7.Qf4 Rf8 8.e5 Kg7 9.Nf3 equal game.

6.Qxc5

White has a 2 pawn advantage, but Stockfish 16.1 evaluates his advantage as almost twice that.

6...d6

This doesn't help. Instead, he should put his Knight or his Queen on c6 and try to hold on, rooting for the clock. 

7.Qxc7+ Nd7 8.Nf3 Ne7 9.O-O Nc6 

Locking in White's Queen

10.d4 Kg7 

A little better is 10...Nxd4 11.Qc4+ Ne6 12.Nc3 Nb6 13.Qb4 Rd8

11.Bg5 Qe6 

Instead, 11...Qf8 leads to being more confined, i.e. 12.d5 Nce5 13.Nd4 Kg8 14.Ne6 Qf7 15.Nd2. 

12.d5 Qxe4 13.dxc6 bxc6 14.Qxd6 Qxc2

Now White has a mate in four

15.Qe7+ Kg8 16.Bh6 Qxb2 17.Nbd2 Nf6 18.Qg7 checkmate




Tuesday, February 18, 2025

Jerome Gambit: Whatever Happened To...? (Part 1)



I was wondering the other day whatever happed to a couple of nefarious chess opening variations, the OMG Variation and the Face Palm Variation.

It turns out that in the past few years, they have been hanging out with some high class players.

Consider the following two blitz games. (Names have been redacted.) 

Sure, the higher-rated player wins in each case, but what in the world is an almost 2700-rated player doing playing such a trashy opening, or even moreso an almost 2800-rated player?

Perhaps a large amount of fun was involved.

Might I suggest the main line of the Jerome Gambit? 


The OMG variation:

WhiteElo 2680 - BlackElo 2921 3 0 blitz, lichess.org, 2021 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Ng5 Qxg5 5.d4 Qxg2 White resigned


The Face Palm Variation
WhiteElo2772 - BlackElo 2298 3 0 blitz, lichess.org, 2021 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Ng5+ Kf8 6.Qh5 g6 7.Nxh7+ Kf7 8.Ng5+ Kf6 9.Qxh8+ Kxg5 10.d4+ Kg4 11.f3 checkmate

Monday, February 17, 2025

Jerome Gambit: Comes the Time

Comes the time when the defender decides to give back one of the pieces sacrificed in the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), some ways are more entertaining than others.

Not necessarily more effective.

The following game is a quick example.


benjamin84000 - Hozan000

3 2 blitz, lichess.org, 2023

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.Qf5+ Kd6 8.f4 Nd3+ 

In a post 5 1/2 years ago, "Jerome Gambit: Too Clever", I wrote

Black returns one of the sacrificed pieces, buries White's dark square Bishop, and plans an attack on the dark squares. Still, the Knight move is a bit too clever - although it appears that no one has yet played the best alternative, the walk-away 8...Kc6!? 

[Currently, The Database has 49 games with 8...Kc6 - Rick] 

9.cxd3 Bb6 

Or 9...Qh4+ 10.g3 Qh6 11.Qd5+ Ke7 12.Qxc5+ Kd8 13.Qf8 checkmate, as seen in  Hardy,C - NN, lichess.org, 2019 and Jagulep - loks_sf, lichess.org, 2019

In the game, Black pulls his Bishop out of the line of fire. However, Stockfish 16.1 recommends, instead, the interesting line of play: 9...Nf6 10.e5+ Kc6 11.d4 d6 (Black has two pieces en prise again!) 12.Qc2 b6 13.dxc5 (the Bishop expires, after all) dxc5 14.Nc3 Re8 15.Qa4+ Kb7 16.O-O Bd7 17.Qd1 Bg4 18.Qe1 Qd4+ 19.Qf2 Qxf2+ 20.Rxf2 Ng8. Black's pieces are okay, and the computer evaluates (36 ply) that position as less than a pawn better for White - despite the protected, passed pawn on e5.

10.Qe5+ Kc6 11.Qd5 checkmate




Sunday, February 16, 2025

Jerome Gambit: Off-Setting Errors

In the following game, White's slip-up on move 9 was balanced by Black's slip-up on move 11, which is a major reason that the game lasted only 15 moves.

farhadba - nukechess2023

10 0 rapi, lichess.org, 2024

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.Qf5+ Kd6 8.f4 Bd4 


First seen, according to The Database, in 5 of the games between Fisher-Kirshner and an early version of Fritz, known as KnightStalker. Black won 4 of those games.

9.c3 

Attractive, but flawed. Instead 9.fxe5+, as played by Fisher-Kirshner, was the way to go, although after 9...Kc6 White's idea of 10.b4? was too far out - 10.c3, as in the current game, was the right idea.

9...Nd3+ 10.Ke2 Nxc1+ 11.Rxc1 Bb6 

Wrong retreat. What worked was 11...Bf6

12.d4 

Missing 12.Qe5+ Kc6 13.Qd5 checkmate 

12...Qf6 

It must be the clock. It was time, instead, to safeguard the King with 12...Ke7

13.e5+ Ke7 14.exf6+ Nxf6 15.Nd2 Re8 Black resigned



Saturday, February 15, 2025

How to Get an Advantage or to Win with JG (4.Bxf7+) against Maestri: the Collection of Practice (Part 4)

 


                             How to Get an Advantage or to Win with 

                                    JG (4.Bxf7+) against Maestri: 

                                 the Collection of Practice (Part 4)


                                       by Yury V. Bukayev

Dear readers, let me remind you that these my new posts about White's advantage and wins in such chess games are dedicated to the 150th anniversary of Alonzo Wheeler Jerome's publications with 4.Bxf7+ in Giuoco Piano. Now the world chess history knows a lot of cases, where White got an advantage or won here against grandmasters and other extremely strong defenders!

We should start this new part from the game

NN - Top GM Hikaru Nakamura (Kgn1111 - GMHikaruONTwitch, 3 min blitz, Chess.com, 2021)


4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.f4 Qf6 8.Rf1 Nh6 9.Nc3 c6 10.d3 d6 11.fxe5 Qxe5 12.Qh4 Bb4 13.Bd2 Kd7 14.O-O-O Kc7 15.Bf4 Qe6 16.d4 Bd7 17.d5 Qg6 18.dxc6 bxc6 19.Qe7 Rae8 20.Qh4 Ng4 21.Qg3 Ne5 22.Bxe5 Rxe5 23.Qd3 Ra5 24.a3 Qg5+ 25.Kb1 Bxa3 26.bxa3 Rb8+ 27.Ka2 Rxa3+ 28.Kxa3 Qc5+ (White resigned), 

where White had several chances to get an even game or an advantage before his 18th move. And White's best chance was after 18.dxc6!, when he got a won position, but blundered immediately instead of 19.a3! Bxc3 20.Rxd6!! with a win. This game shows that Mr. Nakamura wasn't ready to play the Schiller defence 7...Qf6, because the first of his large mistakes was his 11th move already.

Further, let's mention the game 

Alexey Pugach - GM Petar Arnaudov (ChessCoachUA - PArnaudov, 3 min blitz, lichess.org, 2017),

where after 4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf8 7.Qxe5 d6 8.Qg3 Nf6 9.d3 Qd7 10.Nc3 Qg4 11.Qxg4 Bxg4 12.h3 Be6 13.Be3 Bxe3 14.fxe3 Ke7 15.O-O Rhf8 16.Nb5 c6 17.Nd4 Nd7 18.a4 Rxf1+ 19.Rxf1 Rf8 20.Rxf8 Nxf8 21.Kf2 g6 22.Nf3 Nd7 23.b3 a5 24.Ke2 Nc5 25.e5 dxe5 26.Nxe5 Kd6 27.d4 Nd7 28.Nd3 Bf5 29.g4 Bxd3+ 30.Kxd3 b5 31.axb5 cxb5 32.e4 a4 33.bxa4 bxa4 34.h4 a3 35.Kc3 Nb6 36.Kb3 Nc4 37.c3 Nd2+ 38.Kxa3 Nxe4 39.c4 Black lost on time. The final position is enough respectable for White for his very long play with a sacrificed material down and without Queens. I think, Black wasn't ready to meet Jerome gambit and spent too much time for his moves. White (like Black) could play much stronger in several cases - in opening and in endgame, so Black's task could become much heavier there and could take more his time. One of methods of how to win a blitz game with Jerome gambit is to play faster than your opponent without your punished blunders. 

                                          (to be continued)

Friday, February 14, 2025

The Jerome Gambit Rides Again?!

I recently returned to playing chess over-the-board, after a layoff of several decades.

Sure, I have played online at Chess.com and FICS, and I have occasionally played my young grandchildren ("I beat Grandpa! I beat Grandpa!") but even the new, weekly, weekend, casual play at the local library, feels more "serious" than that.

I have tried to play a Jerome Gambit, without luck, so far.

I did play a Sicilian Wing Gambit (1.e4 c5 2.b4) successfully, but as we were not recording the moves, I cannot share the game. 

More adventures ahead!