Friday, July 31, 2015

Q.E.D.



While it is not from the longest or strangest Jerome Gambit game in The Database (see "The Longest (and Strangest?) Game in The Database") - for other numerical recreations, see "King in Peril: Comment & Reply" - 
the following end position shows the logical outcome of Black being happy with his extra piece, from 4...Kxf7 through 114...Kxa7, but not doing a whole lot with it in the 100-plus moves in the interim.


Mannixcannon - Ellema, FICS, 2014
Drawn after 114...Kxa7



Wednesday, July 29, 2015

The Jerome Gam' Again


Another player who likes the excitement of the Jerome Gambit is Louis Morin (MrJoker), whose earliest game in The Database dates from 2000.

He recently played the Jerome in the Canadian Open - and wishes others would answer with 3...Bc5 instead of 3...Nf6 or 3...Be7 so he could bring out the Jerome Gambit in over-the-board play more often. He gets most of his opportunites online at the Internet Chess Club.


Morin,L - Occillien,J 
Canadian Open, 2015

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 




4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 7.Qd5+ Kf8 8.Qxc5+ d6 9.Qe3 Nf6


10.d4 Kf7 11.0-0


This looks like a slight improvement over 11.f4 Re8 12.e5 Nd5 13.Qb3 Be6 14.f5 Qh4+ 15.g3 Qe4+ 16.Kf2 Qxf5+ 17.Bf4 Ndxf4 18.Qxb7 Bd5 19.Qxc7+ Re7 20.Qxd6 Nh3+ 21.Ke1 Bxh1 22.Nc3 Qf2+ 23.Kd1 Qf1+ 24.Kd2 Qxa1 25.Nd5 Bxd5 26.Qxd5+ Kf8 27.Qxa8+ Re8 28.Qxa7 Qxb2 29.Qc5+ Kg8 30.a4 Nf2 31.Qc6 Rf8 32.e6 Qxd4+ 33.Kc1 Ne7 34.Qb7 Ne4 35.Qxe7 Qa1 checkmate,  MrJoker - bwhited, ICC, 2011


11...Rf8


Black presents a small improvement over 11...Re8 12.f3 Kg8 13.c4 Be6 14.b3 Qd7 15.Bb2 c6 16.Nd2 h6 17.f4 Bf5 18.e5 Nh7 19.Qg3 dxe5 20.fxe5 Qe6 21.Nf3 Be4 22.Rae1 Bxf3 23.Rxf3 Rf8 24.Rxf8+ Rxf8 25.d5 cxd5 26.cxd5 Qb6+ 27.Qe3 Qxe3+ 28.Rxe3 Nf4 29.d6 Ne6 30.Rf3 Nhg5 31.Rc3 Ne4 32.Rc4 Nd2 33.Rc1 Kf7 34.Ba3 Kg6 35.Re1 Rc8 36.Re2 Nxb3 37.axb3 Kf5 38.h3 Rd8 39.Kf2 Nd4 40.g4+ Ke6 41.Rd2 Nxb3 42.Rb2 Na5 43.Rb5 Nc6 44.Rxb7 Nxe5 45.Rxa7 Rd7 46.Rxd7 Kxd7 47.Kg3 Nc4 48.Bc5 Nxd6 49.Kf4 g6 50.Ke5 Nf7+ 51.Kf6 Ng5 52.Kxg6 Nxh3 53.Kxh6 Ke6 54.Be3 Kf7 55.Kh5 Kf6 56.Kh4 Black resigned, MrJoker- HarryP, ICC, 2011.


12.f4 Kg8 13.c4


White builds his "Jerome pawn" center before putting it in motion. Previously he tried a small variation with 13.f5 Ne7 14.c4 b6 15.h3 Bb7 16.Nc3 Nc6 17.g4 Qe7 18.Nd5 Nxd5 19.cxd5 Nd8 20.Bd2 Re8 21.Rae1 Qh4 22.Qf3 Ba6 23.Rf2 Nf7 24.Kh2 Ng5 25.Bxg5 Qxg5 26.e5 Rad8 27.e6 Bb7 28.Rc2 Re7 29.Rec1 Rc8 30.Kg3 Qf6 31.Qe4 g6 32.Kh2 gxf5 33.gxf5 Rg7 34.Rg1 Rxg1 35.Kxg1 Qg5+ 36.Kh2 Kh8 37.e7 Qg8 38.f6 Qf7 39.Rxc7 Rxc7 40.e8Q+ Black resigned, MrJoker - Zoli, ICC, 2011.


13...Ng4


Irresistible.


14.Qg3 Qh4 15.Qxh4 Nxh4




White's center and two extra pawns pretty much balance out Black's extra piece. How does the first player get more than equality?


16.h3 Nf6 17.Nc3 Ng6 18.Bd2 b6




After the game Louis said that at the time he did not fully appreciate the idea behind Black's Queenside actions.


19.e5 Nh5 20.Ne2 dxe5 21.fxe5 Rxf1+ 22.Rxf1 Ba6 23.b3 b5




I think I have seen something like this in Andras Adorjan's Black Is Ok!, but, of course, it was not in the context of the Jerome Gambit!


24.g4 bxc4 25.gxh5 cxb3 26.Re1


White also had something like 26.hxg6 Bxe2 27.Ra1 b2 28.Rb1 Rb8 29.Bc3 hxg6 30.Rxb2 Rxb2 31.Bxb2 but that seems to peter out into a drawn Bishops-of-opposite-colors endgame. 


26...Nh4 27.Kf2 Rf8+ 28.Nf4 bxa2 29.Ra1 Bc4 30.Ke3 Rb8 




The sacrificed piece has been regained.

From here on, Black, with the extra, advanced pawn, has what winning chances there are, but he cannot find them.


White plays confidently, outplays his opponent, and splits the point.


31.d5 Rb1 32.Bc3 g5 33.hxg6 hxg6 34.Kd4 Bb3 35.Kc5 Nf5 36.Nxg6 Ne3 37.d6 cxd6+ 38.exd6 Rxa1 39.Bxa1 Be6 40.h4 Nc2 41.Bc3 a1Q 42.Bxa1 Nxa1 43.Kb5 Drawn




Monday, July 27, 2015

The Jerome Gam'


As far as I know, Dr. Seuss never played the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) but I suspect he would have liked the zaniness of the chess opening. Who knows, he might have decided

Say! I like the Jerome Gam'!
I do! I like it, Sam-I-Am!
And I would play it in a boat.
And I would play it with a goat...
And I would play it in the rain.
And in the dark. And on a train.
And in a car. And in a tree.
It is such fun, such fun, you see!
So I will play it in a box.
And I will play it with a fox.
And I will play it in a house.
And I will play it with a mouse.
And I will play it here and there.
Say! I will play it anywhere!
I do so like the Jerome Gam'!
Thank you! Thank you! Sam-I-Am!

Well, we all know that Bill Wall likes the Jerome Gambit, and here is his latest over-the-board effort, against someone who should have taken the opening a bit more seriously.

Wall,B - O'Toole,S
Abu Dhabi, 2015

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.Qe3

The Database has 218 games which reach this position.

9...Bg4

And 0 games - except this one - with this move.

It is not easy to figure the idea behind 9...Bg4. Bill suggests the alternative 9...Nf6.

10.0-0 c5 11.f4 Nh6 12.Nc3 Rf8 



If there were time, following this move by castling-by-hand with ...Kf7-g8 might be prudent. Bill suggests withdrawing the errant Bishop with 12...Bd7, but perhaps Black has a different plan for it.

13.f5 Ne5 14.d3 a6 15.h3 Bxf5

Bill suggests, instead, either. 15...Qh4 16.hxg4 Nhxg4 17.Qh3 Qxh3 18.gxh3 Nf6 19.Bg5; or 15...Nxf5 16.exf5 Bxf5 17.Qg3 g6 18.Bh6. In either case, White is for choice.

16.exf5 Rxf517.Rxf5 Nxf5 18.Qe4



Black has returned his extra piece for two pawns; the material is even. After his next move, he can even claim an advantage in development. However, his King is unsafe, and White's Queen will sow disorder. It is time to be very, very serious...

18...Qf6 

He might have tried 18...Qd7

19.Qxb7 Rd8 20.Ne4

From an email from Bill:
I just put this game in Fritz and it found this amazing drawing line for Black that I would not have found.  On move 20 I played 20.Ne4, but I also thought I could play 20.Qxa6 as well (I said to myself, what's the difference, I will play 21.Qxa6 next).  If I had played 20.Qxa6? first, then 20...Qh4 (threatening 21...Qe1 and a draw) 21.Bd2 (or almost anything else) Nf3+!  22.gxf3 Qg3+ 23.Kf1 Qxf3+ and a draw..  I would have to try 21.Qa4+ and trade queens to avoid this, which may still draw for Black.  In the line I played, 20.Ne4, if 20...Qh4?, then 21.Bg5 can be played as it is supported by the knight in this variation and the knight also prevents ...Qg3+, thus winning for White.  What a difference a tempo or an in-between-move makes.  It's amazing what these computers can find in 1 second that would take me 1 hour to see, if at all. 
20...Qe7 21.Qxa6 Qd7 22.Bg5 Rc8 23.Rf1 h6 24.Rxf5 Qxf5 25.Nxd6+  Black resigned



A nice finish - White forks King, Queen and Rook!

I don't think I have seen that in a Jerome Gambit game before.

Saturday, July 25, 2015

How Goes the Second Decline?


The following game allowed me to both see what an interesting new Jerome Gambit player was doing, as well as check out another example of a defensive move by Black that I have sometimes underestimated.

ZahariSokolov - naijachampion

standard, FICS, 2014

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 




4...Kxf7 5.Nxe5+ Ke8


Black decides that accepting one sacrificed piece is enough.


His King would be safer on f8, however. See "A Second Chance to Decline".


6.Qh5+


The text is thematic, but 6.Nxc6 is probably "objectively" stronger. See "Don't drive like my brother", "Ooops..." and "A Short Wall(k)".


6...g6 7.Nxg6 Bxf2+


At first glance a surprise, but Black counts the Bishop's time left as limited, and plans to get a pawn for it.

8.Kxf2


White escaped twice after declining the piece, but it is not a strategy that I would endorse:


8.Kd1 Nf6 9.Qf3 Rg8 10.Nf4 Bc5 11.c3 d6 12.d4 Bb6 13.h3 h5 14.Re1 Bd7 15.Nd5 Nxd5 16.exd5+ Ne7 17.Qxh5+ Kf8 18.Rf1+ Nf5 19.Bh6+ Ke7 20.Rxf5 Bxf5 21.Qxf5 Qd7 22.Bg5+ Ke8 23.Qe4+ Kf8 24.Bh6+ Kf7 25.Nd2 Rae8 26.Qf4+ Kg6 27.Kc2 Qf5+ 28.Qxf5+ Kxf5 29.g4+ Kg6 30.Bf4 c6 31.Bxd6 Re2 32.Kd3 Rge8 33.Nc4 Bd8 34.a4 b5 35.axb5 cxb5 36.Ne5+ Kg7 37.Kxe2 Bg5 38.Rf1 Rh8 39.Rf7+ Kg8 40.Rf3 Kh7 41.Nc6 Re8+ 42.Kf2 a6 43.Ne5 Bh4+ 44.Kg2 a5 45.Rf7+ Kg8 46.Rf5 a4 47.Rh5 Bd8 48.Bb4 Kg7 49.h4 Bf6 50.Kh3 Rf8 51.g5 Bd8 52.Kg4 Bc7 53.Bc5 Bb8 54.d6 Rd8 55.Nc6 Rd7 56.Nxb8 Kg6 57.Nxd7 Black forfeited on time, Petasluk - Klonkku, FICS, 2011;


8.Kf1 hxg6 9.Qxh8 Qf6 10.Qxf6 Nxf6 11.Kxf2 Nxe4+ 12.Ke3 d5 13.Nc3 Bf5 14.Nxe4 Bxe4 15.d3 Bf5 16.Bd2 Kd7 17.Rhe1 Re8+ 18.Kf2 Ne5 19.h3 d4 20.Bf4 Kd6 21.Bxe5+ Rxe5 22.Rxe5 Kxe5 23.Re1+ Kd6 24.Kf3 Black resigned, jecree - lhoffman, FICS, 2008.


8...Qf6+


8...Nf6! is the correct move here, still unplayed as far as The Database is concerned.


9.Qf5


9.Nf4+ is the strongest rejoinder, as seen as far back as Blackstone,J - Dommeyer,C, Campbell, CA 1960 and as recent as Philidor 1792 - Guest834593, PlayChess.com 2014.


9...hxg6 10.Qxf6 Nxf6 11.d3 d6 




Black has the standard piece for two pawns. He has seen the Queens leave the board, and his King has escaped danger, but the game is not over.

12. c3 b6 13. Bg5 Ng4+ 14. Ke2 Be6 15.Nd2 Rxh2



A tactical oversight, not just the win of a pawn. 

16.Rxh2 Nxh2 17.Rh1 Ng4


Still missing something, or in shock. It was time to bite the bullet with 17...Bxa2.


18.Rh8+ Kd7 19.Rxa8 Bxa2



White is a clear exchange ahead. From here on he outplayed his opponent.

20.b3 Nge5 21.Rg8 Na5 22.d4 Nxb3 23.Rg7+ Kc8 24.dxe5 Nxd2 25.Kxd2 dxe5 26.Rxg6 a5 27.Be7 Kd7 28.Ba3 Be6 29.g4 c6 30.g5 b5 31.Rg7+ Kd8 32.Ra7 a4 33.Ke3 Kc8 34.g6 Black resigned


Thursday, July 23, 2015

Mutual Royal Danger: Knightfall


I was playing over the following Abrahams Jerome Gambit game with Stockfish looking over my shoulder, when the computer made a comment that I didn't understand. It turns out that both players had overlooked something along with me and that only one of them was able to recover, and take advantage of the particular situation...


Korpav - Dagestan

standard, FICS, 2015

1.e4 e5 2.Bc4 Bc5 3.Bxf7+ 




3...Kxf7 4.Qh5+ Kf8 5.Qxe5 d6 6.Qc3 Qg5 7.Qf3+ Nf6

8.Ne2 Nc6 

To my eyes, Black was doing a good job of dealing with the gambit, and his last move seemed solid and useful. However, Stockfish didn't like 8...Nc6 and suggested, instead, 8...Bg4 9.Qf4 Qxf4 10.Nxf4 Nc6.


Hmmm... First exchange Queens, then bring out the Knight. Okay... Why?


9.c3

The first thing both players (and the annotator) overlooked was 9.d4!, which allows White, after a bit of exercise, to win back his sacrificed piece with 9...Bb4+ 10.c3 Qg6 11.Nf4 Qxe4+ 12.Qxe4 Nxe4 13.cxb4 Nxb4 when




analysis diagram






Black's active pieces would give him only an edge.

Having missed the opportunity to take advantage of his opponent's Queen's danger, White Queen now experiences her own troubles at the hands of the enemy Knights.

9...Ne5 10.Qg3 Bxf2+ 11.Kxf2 Nxe4+ White resigned



Tuesday, July 21, 2015

"And I would have gotten away with it..."

Image result for free clip art scooby doo

I just received the latest Jerome Gambit (delayed) game from Bill Wall. Before - or after - checking it out, you might want to visit "Bill Wall's Chess Page" which has been updated to have even more interesting chess stuff.

The graphic at the top of this post is from the animated series featuring "Scooby-Doo" and his human pals, who got into all sorts of mischief as they solved mysteries. Often the captured villain, at the end of the episode, would lament, "And I would have gotten away with it too, if it weren't for you meddling kids!"


Some players who defend against the Jerome Gambit have the same feeling about White's "Jerome pawns". 


Wall,B - Lee,S

PlayChess.com, 2015

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 
4.d3 Bc5 5.Bxf7+




5...Kxf7 6.0-0


Bill has played this kind of delayed Jerome Gambit a little differently, before, for example: 6.Be3 Bb4+ 7.c3 Ba5 8.b4 Bb6 9.b5 Na5 10.Nxe5+ Kf8 11.0-0 d6 12.Nf3 Ke7 13.Qc2 Re8 14.d4 Kf8 15.e5 Nd5 16.Qxh7 Nxe3 17.fxe3 Nc4 18.Ng5+ Ke7 19.Qxg7 checkmate, Wall,B - Westender, Chess.com, 2010.


6...h6


An alternative that shows up in different Jerome Gambit game collections is 6...Re8 7.Bg5 d5 8.Nbd2 Bg4 9.c3 Qd6 10.Qb3 Rab8 11.Bxf6 gxf6 12.exd5 Na5 13.Qa4 Bxf3 14.Nxf3 Qb6 15.b4 Bxf2+ 16.Rxf2 e4 17.dxe4 Nc4 18.Qd7+ Kg6 19.Qf5+ Kg7 20.a4 Qe3 21.Nd4 Qxc3 22.Qxf6+ Kg8 23.Raf1 Qxb4 24.Ne6 Qe7 25.Qd4 Nb6 26.Rf3 Nd7 27.Rg3+ Black resigned, Brookshire,T - Cunningham,D, IECC ,1999 (1-0, 27); alternately, 6...Kg8 would allow transposition to Wall,B - KRM, Chess.com, 2010 (1-0, 25).


7.Nxe5+


Bill has also played this position without the second piece sacrifice:

7.Be3 would lead to Wall,B-Mukak, Chess.com, 2010 (1-0, 24); while 7.Nc3 was seen in Wall,B - Guest2622844, PlayChess.com, 20137...Rf8 8.Nd5 Kg8 9.Be3 Bb6 10.c4 d6 11.Qb3 Na5 12.Qc3 Nxd5 13.cxd5 c5 14.Nd2 Bc7 15.a3 b5 16.b4 Nb7 17.Nb3 c4 18.dxc4 bxc4 19.Nd2 a5 20.Nxc4 axb4 21.axb4 Rxa1 22.Rxa1 Qh4 23.f3 Bd7? 24.Nxe5 dxe5 25.Qxc7 Bc8 26.Qxe5 Qf6 27.Qxf6 Rxf6 28.b5 Rf8 29.b6 Kf7 30.Rc1 Na5 31.Rc7+ Kg6 32.Bd4 Rg8 33.Kf2 Nb3 34.Bc3 Ba6 35.b7 Rb8 36.Rxg7+ Kh5 37.g4+ Kh4 38.Bf6+ Kh3 39.Rh7 Black resigned

7...Nxe5 8.d4 


Bill has played a similar game, achieving d2-d4 in one move instead of two: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.0-0 h6 6.Nxe5+ Nxe5 7.d4 Nf6 8.dxe5 Nh7 9.Qd5+ Kf8 10.Qxc5+ d6 11.Rd1 Black resigned, Wall,B - Guest2170955, PlayChess.com, 2012. 


8...d6 9.dxc5 dxc5 10.Qe1 Re8 




Black has a piece for a pawn as well as better development. He is better, but he needs a plan.


In the mean time, White will develop and unleash his "Jerome pawns".


11.Nc3 Ng6 12.f3 Qd4+ 13.Be3 Qe5 14.f4 Qe7 15.e5 Nd7




Black's Queenside looks dangerously congested.


Bill points out that 15...Bf5 was possible, as 16.exf6? simply loses a piece to 16...Qxe3+ 17.Qxe3 Rxe3


16.Nd5 Qh4


Black's move feints at an attack on the Kingside, threatens to exchange Queens - and ignores the problems of his Queenside.


One fascinating possibility in this position is 16...Qd8 17.Rd1 c6 18.e6+ Kg8  when White simply snags the Knight on d7, with at least equality after 19.exd7 Bxd7 20.Nc3. The point is that Black cannot take the obnoxious White e-pawn with 18...Rxe6, as White can activate his other advanced "Jerome pawn" with 19.f5 Re5 20.fxg6+ Kg8 and the tactics, as Stockfish shows, are in the attacker's favor: 21.Nc7!? Qxc7 22.Qg3 Qa5 23.Rxd7 Bxd7 24.Qxe5 Re8 25.Bxc5 Qd8 26.Qf4 with an advantage to White.


17.f5 Qxe1 18.e6+ Kg8 19.Raxe1 Rf8 20.fxg6 Rxf1+ 21.Rxf1 Ne5 


Perhaps Black breathed a sigh of relief here. True, he has had to return his extra piece, but he has traded Queens and one pair of Rooks, and he can look forward to the possibility of a Bishops-of-opposite-colors endgame where White's extra pawn may make no difference.


22.Ne7+ 


Or not.


Here Black resigned, as 22...Kh8 23.Rf8 would be checkmate.


Sunday, July 19, 2015

A Familiar Oldie



I have been going through (again) my issues of the very creative German chess magazine Randspringer, which has received mention on this blog in the past (see "Randspringer!" and "Unorthodox Chess Openings Magazines").

In fact, the magazine has two short articles on the Jerome Gambit, the first being "Meet Jerome" by Jack Young in Randspringer #6 1990-1991, referred to in "Repairing a Variation (Part 3)".


The second is in the pamphlet Eroffnungspraktikum 1. e4 & 'TROSSINGER PARTIE' 2. Lc4! auf alles (Randspringer #78, 2005), in the small "Lc4:f7+ (!; !?; ?!; ?) (von Kiew bis Kentucky)", with the famous Amateur - Blackburne game, and one by the editor/publisher of the magazine, himself.


A number of years ago I included the Schlenker game in a note to a blog post (see "Jerome Gambit: Drilling Down (12)") but I thought I would bring it out for some individual attention.


Schlenker, R. - Sfrd (DWZ 1850+)

May 24, 2002

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



4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 7.Qxc5

d6 8.Qe3 Nf6 

There are about 330 games with this position in The Database - the vast majority of them played after this game.


 9.O-O Re8 10.d3 Ng4 


A common theme: Harass White's Queen!


11.Qe2


Later, players would show a preference for 11.Qf3+. The current retreat is enough to embolden Black further, but his "attack" is brushed off.


11...Qh4 12. h3 N4e5 


The rejected Knight says "Kick me!"


13. f4 Nd7


Instead, Schlenker suggests 13...Nf6, to be met by 14.c3.


The adventurous 13...Bxh3?! was successful in UNPREDICTABLE-Plafond, FICS, 2009, but should not have been: 14.fxe5+ Kg8 15.gxh3 Nxe5 16.Qg2 Rf8 17. Bg5? (17. Be3) 17...Rxf1+ 18.Qxf1?! (18.Kxf1) 18...Qg3+ 19.Qg2 Nf3+ 20.Kh1 Qe1+ 21.Qg1 Qxg1# Once again, fortune favors the bold!


14. Nc3 c6 15. f5 Nge5


Instead, 15...Ngf8!, Schlenker.


It is amazing how many opponents think that once you have played the Jerome Gambit, you have no more good moves left to play. Time to "kick" the other Knight.


16.d4 Nf6 17.dxe5 Black resigned





Schlenker points out if 17...dxe5 White has 18.Qc4+ Kf8 19.b3, and if 17...Rxe5 there is 18.Bf4. In both cases White is better.