Saturday, May 16, 2015

Visit From An Old Friend


Black's tactical oversight on move 12 is like a visit from an old friend. (As the Beatles sang, "I get by with a little help from my friends.") It is an interesting variation on the old "optical illusion" which has garnered me a few points.

perrypawnpusher - johnEjohnE

blitz, FICS, 2015

1.e4 e5 2.Nf3 Nc6 3. Bc4 a6 


Okay, no Jerome Gambit - yet. Patience.


4.O-O 


Here Bill Wall jumped the gun with 4.Bxf7+ and earned a quick victory in Wall,B - GuestDLNJ, FICS, 2010 (1-0, 11). 

A Scotch variation was seen with 4.d4 exd4 5.Nxd4 Bc5 6.Bxf7+ Kxf7 7.Qh5+ Black resigned, Melenos - Rocangus, FICS, 2010

4... Nf6 


Stubborn. After 4... Bc5 I played 5. Bxf7+ in perrypawnpusher - Tlslevens, blitz, FICS, 2010 (1-0, 28). 


5. Nc3


I could have played 5.Ng5, as in the Two Knights Defense,  5...d5 6.exd5 Na5 7.d3 etc., but I was still angling for a Jerome Gambit.


5... Bc5 6. Bxf7+ 


At last. A Delayed Italian Four Knights Jerome Gambit.


6...Kxf7 7.Nxe5+ Nxe5 8.d4 Nf3+ 




A bright idea, similar to the move by AirmanLeonidas, when he had advanced h7-h7 instead of this game's a7-a6.

The equally interesting 8... Qe7 was seen in Wall,B - Pawndering, Chess.com, 2010 (1-0, 16). 


9. gxf3 


Writing about my game against AirmanLeonidas, I commented about the pawn capture vs the Queen capture
Going with the "Jerome pawns," but not the best. After the game Rybka suggested: 9.Qxf3, since if 9...Bxd4 White can regain the pawn with 10.Nb5 Be5 11.Qb3+ d5 12.f4 Bd6 13.Nxd6+ Qxd6 14.e5 Qb6+ 15.Qxb6 axb6 16.exf6 gxf6 when Black may have a small edge if he can use his open lines.
However, in the current game, the helpful 10.Nb5 is not playable, due to Black's pawn on a6.

Still, a long-time Jerome Gambiteer once went with the Queen capture: 9.Qxf3 Bxd4 10.Nd5 c6 11.Nxf6 Qxf6 12.Qb3+ Qe6 13.c4 Re8 14.Be3 Qxe4 15.c5+ Re6 16.Rae1 Ke7 17.Bxd4 Qxd4 18.Rxe6+ dxe6 19.Qc2 g6 20.b4 Black forfeited on time, jfhumphrey - spince, FICS, 2013.


9...Bb4 10.Bg5 h6 11.Bh4 d6 12.Qd3



Black misunderstands the reason for this move, and overlooks my response. It's blitz. It happens.


12...Rf8 13.Qc4+ Be6 14.Qxb4 Bh3 




Black's pressure on White's King does not compensate for being behind two pawns, with the smaller center. He appears to have been shaken by falling for the cheap tactic.


15.Rfe1 Kg8 16.e5 dxe5 17.dxe5 Qe8 18.exf6 Qf7



Here Black forfeited by disconnection.


After 19.fxg7 Qxg7+ 20.Bg3 White would clearly be better.


Thursday, May 14, 2015

More and More About What We Know So Little



In the last few days I have added over 10,000 Abrahams Jerome Gambit games (1.e4 e5 2.Bc4 Bc5 3.Bxf7+), which we have been discussing recently, to The Database, pushing it almost to 51,000 games, total. (I can probably add another 10,000 Abrahams JG games to bring things up-to-date with play at FICS.)

Reviewing my email files, I note that in the past I have discussed the opening with the always-impressive IM/PhD Tim Harding (whose 1973 Bishop's Opening is a classic, whose articles for chesscafe.com  helped answer the question "What Exactly Is the Bishop's Opening?", and whose biography of Joseph Henry Blackburne many await from McFarland) and with Michael Goeller, who maintains an excellent online resource on the Bishop's Opening; and neither was familiar with the early Bishop sacrifice.

That pretty much makes three of us.

I have recently contacted IM Gary Lane, a long-time friend of this blog, who has written Winning With the Bishop's Opening (1993) and The Bishop's Opening Explained (2005). While he is not familiar with the Abrahams Jerome Gambit, either, he is willing to take a look at it with his readers in his next month's "Opening Lanes" column at ChessCafe.com. 

I hope to learn more - much more. I need to. It is ridiculous that the "oldest" over-the-board game example of this line in The Database is a 2003 game:

Kuckuck,D - Loesche,N 
EU-ch U08 Germany, 2003

1.e4 e5 2.Bc4 Bc5 3.Bxf7+ Kxf7 4.Nf3 Nf6 5.0-0 Nxe4 6.Nxe5+ Kf8 7.Re1 Bb4 8.Rxe4 b6 9.Rxb4 Bb7 10.c4 Ke7 11.d3 h5 12.f3 g5 13.f4 gxf4 14.Bxf4 d6 15.Bg3 h4 16.Bf2 b5 17.Rb3 Rh7 18.Nd2 Qd7 19.Ne4 Nc6 Black resigned

The "oldest" online game example in The Database is only from 1999.

ChessNinja  - Leebros
FICS,1999

1.e4 e5 2.Bc4 Bc5 3.Bxf7+ Kxf7 4.Qh5+ Kf8 5.Qxe5 Qe7 6.Qf5+ Nf6 7.e5 d6 8.Qxc8+ Kf7 9.Qxh8 Nc6 10.Qxa8 Qxe5+ 11.Ne2 Nd4 12.Nbc3 Ng4 13.Qxb7 Nxc2+ 14.Kf1 Nxh2+ 15.Rxh2 Qxh2 16.Qxc7+ Kg6 17.Rb1 Qh1+ 18.Ng1 Ne1 19.Kxe1 Qxg1+ 20.Ke2 Qxf2+ 21.Kd1 Black ran out of time




Tuesday, May 12, 2015

Exploring

Image result for free clip art exploring

After the previous post ("Keep Your Eye on the Prize") I started gathering thousands of Abrahams Jerome Gambit games and adding them to The Database, to develop a better understanding of the opening.

As the following game shows, theory of some of the variations is not far developed.


macele - torment

blitz, FICS, 2005

1.e4 e5 2.Bc4 Bc5 3.Bxf7+ 




3...Kxf7 4.Qh5+ Ke6 5.Nf3 




I was surprised to see that this move leads to an even game. So far, less than half of the games in The Database have this move.


Now, after 5...Nc6, the position would resemble a Jerome Gambit where the "ghost" White Queen has passed through the White Knight to deliver check.


5...d6 6.Ng5+ 


I have always been suspicious of this move in the Jerome Gambit proper, but here it seems necessary.


6...Kd7 7.Nf7 Qf6


One of a few equal responses. Black could have tried 7...Qf8 8.f3 Nf6 9.Qh3+ Kc6 10.g4 Qxf7 11.Qf1 d5 12.exd5+ Qxd5 13.Nc3 Qe6 14.Qb5+ Kd6 15.b4 b6 16.bxc5+ bxc5 17 Ba3 c6 18.Qxc5+ Kd7 19.O-O Nxg4 20.fxg4 Qxg4+ 21.Kh1 Bb7 22.Rg1 Qf3+ 23.Rg2 Re8 24.Kg1 Ba6 25.d3 Bb7 26.Rf1 Qh5 27.Rxg7+ Kc8 28.Qd6 Black resigned, Turkman - andrecoenen,  FICS, 2006. 

Or 7...Qe8 8. Qf5+ (8.Qg4+ Kc6 9.Qxg7 Be6 10.Nxh8 Nd7 11.b4 Bxb4 12.c3 Bc5 13.Ba3 Ndf6 14.Bxc5 dxc5 15.Na3 Rd8 16.Nb5 Rd7 17.Qg3 Kxb5 18.c4+ Bxc4 19.a4+ Kc6 20.a5 Rd3 21.Qg7 Qd8 22.O-O Nxe4 23.Nf7 Qd4 24.Nxe5+ Kb5 25.Rfb1+ Ka6 26.Qf6+ Ngxf6 White resigned, AlexPR - raviven, FICS, 2008; or 8.Qf3 Nf6 9.Nxh8 Qxh8 10.d3 Nc6 11.Be3 [11.c3 Ke8 12.Bg5 Bg4 13.Qg3 Be6 14.Nd2 Kd7 15.f4 Rf8 16.fxe5 dxe5 17.b4 Bd6 18.O-O h6 19.Be3 Ng4 20.Rxf8 Qxf8 21.Rf1 Qe7 22.a3 Nxe3 23.Qxe3 Qg5 24.Qxg5 hxg5 25.Nf3 g4 26.Ng5 Bg8 27.Nf7 Be7 28.b5 Bxf7 29.Rxf7 Nd8 30.Rxg7 Ne6 31.Rxg4 Bxa3 32.h4 Ke7 33.h5 Kf7 34.h6 Nf8 35.Rg7+ Kf6 36.Rxc7 Kg6 37.Rxb7 Kxh6 38.d4 exd4 39.cxd4 Bb2 40.d5 Bd4+ 41.Kf1 Kg6 42.Ke2 Kf6 43.Kf3 Ng6 Black resigned, Philidor 1792 - guest1923, www.bereg.ru, 2015] 11...Bxe3 12.fxe3 b6 13.O-O Bb7 14.Qh3+ Ke7 15.Nc3 Bc8 16.Qh4 Be6 17.Nd5+ Bxd5 18.exd5 Nb4 19.Qxb4
Nxd5 20.Qc4 Ke6 21.e4 b5 22.Qxd5+ Kd7 23.Rf7+ Kc8 24.Raf1 Black resigned, pauldiekrake - AlgozBR, FICS, 20148...Kc6 9.Qh5 (9.Qf3 Nf6 10.Nxh8 Qxh8 11.d3 Bg4 12.Qg3 Nbd7 13.h3 Be6 14.O-O Rf8 15.Be3 Nh5 16.Qh2 b6 17.Bxc5 Nxc5 18.Nd2 Nf4 19.b4 Nd7 20.c4 Kb7 21.a4 g5 22.a5 h5 23.Nf3 g4 24.Nh4 Nf6 25.g3 Nxh3+ 26.Kg2 Bxc4 27.dxc4 Nxe4 28.Ng6 Qf6 29.Nxf8 Qf3 checkmate, RattyMouse - raviven, FICS,  2007) 9...Nf6 10.b4 Bxf2+ 11.Kxf2 Nxh5 12.b5+ Kb6 13.Nxh8 Qxh8 14.d3 Qf8+ 15.Ke2 Bg4+ 16.Ke1 Nd7 17.Nc3 c6 18.bxc6 bxc6 19.Rf1 Ndf6 20.Bd2 Kc7 21.Na4 Qe7 22.Rb1 Nd7 23.h3 Be6 24.Ba5+ Kc8 25.Kd2 Rb8 26.Rxb8+ Nxb8 27.Rb1 Qg5+ 28.Kc3 Qxg2 29.Bb6 axb6 White resigned, AlexPR - raviven, FICS, 2007. 

Or 7...Nf6 8.Qf5+ (8.Qh4 Bxf2+ 9.Kxf2 Nxe4+ 10.Qxe4 Qf6+ 11.Qf3 Qxf3+ 12.gxf3 Rf8 13.Ng5 h6 14.Nh3 Nc6 15.c3 Kd8 16.d3 Bxh3 17.Rg1 Rg8 18.Bxh6 Kd7 19.Bxg7 Rae8 20.Nd2 Bf5 21.Ne4 Bxe4 22.dxe4 Kc8 23.b4 Kb8 24.b5 Na5 25.a4 Nc4 26.Rab1 Nd2 27.Rbd1 Nb3 28.Bh6 Rxg1 29.Rxg1 Nc5 30.a5 Nd3+ 31.Ke3 Nc5 32.h4 Ne6 33.Bg5 Ng7 34.Rg4 Nh5 35.Bh6 a6 36.bxa6 bxa6 37.Rg5 Nf6 38.Rg6 Ng8 39.Bg5 Rf8 40.h5 Kb7 41.h6 Nxh6 42.Bxh6 Rh8 43.Bg7 Rg8 44.f4 exf4+ White forfeited on time, radejanus - Erge, FICS, 2008; or 8.Qe2 Qf8 9.Nxh8 Qxh8 10.O-O h5 [10...Nc6 11.c3 Ke7 12.h3 Be6 13.Na3 a6 14.Nc4 Qc8 15.d3 Bxh3 16.gxh3 Qxh3 17.Be3 Ng4 18.f3 Qg3+ 19.Qg2 Qxg2+ 20.Kxg2 Nxe3+ 21.Nxe3 Bxe3 22.Rh1 h6 23.Rh5 g6 24.Rh4 Bf4 25.Rah1 Rh8 26.Rg4 Kf6 27.a4 Ne7 28.b4 Bd2 29.d4 Bxc3 30.dxe5+ Bxe5 31.b5 axb5 32.axb5 g5 33.Kf2 d5 34.Ke2 dxe4 35.Rxe4 Nd5 36.Kd3 Kf5 37.Kc4 Nb6+ 38.Kc5 Nd7+ 39.Kd5 Nf6+ 40.Kc4 Nxe4 41.fxe4+ Kxe4 42.Re1+ Kf4 43.Kd5 Rd8+ 44.Ke6 Rd6+ 45.Ke7 Bd4 46.Rf1+ Kg4 47.Rh1 h5 White resigned, ndizvoh - sniktawiii, FICS, 2014] 11.h3 Ke7 12.d3 Qh7 13.Bg5 Qg6 14.Qd2 Kf7 15.Bxf6 gxf6 16.Kh2 Nd7 17.f4 exf4 18.Rxf4 Ne5 19.d4 Nc4 20.Qf2 Bb6 21.b3 Na5 22.c3 c5 23.Nd2 cxd4 24.Rf1 Bd8 25.cxd4 Nc6 26.e5 dxe5 27.dxe5 Nxe5 28.Ne4 Nd3 29.Rxf6+ Bxf6 30.Qd4 Bf5 31.Qd5+ Kg7 32.Qxb7+ Kh6 33.Nxf6 Rf8 34.Nd7 Rf7 35.Qf3 Rxd7 36.Qxf5 Qxf5 37.Rxf5 Nc1 38.Rf2 a5 39.Rc2 Nd3 40.Rc6+ Kg5 41.Rc2 Nb4 42.Rc5+ Rd5 43.Rxd5+ Nxd5 44.a3 Nc3 45.Kg3 Ne4+ 46.Kf3 Nc5 47.b4 axb4 48.axb4 Na4 49.b5 Nb6 50.Kg3 h4+ 51.Kf3 Nc4 52.g3 Ne5+ 53.Kg2 hxg3 54.Kxg3 Nc4 55.h4+ Black forfeited on time, ndizvoh - LadyBishop, FICS, 2014; or 8.Qh3+ Ke7 9.Nxd8 Bxh3 10.gxh3 Rxd8 11.d3 Nc6 12.Nc3 Nd4 13.O-O Nxc2 14.Rb1 Nd4 White forfeited on time,  Djmilen - Torny, FICS, 2006) 8...Kc6 9.Nxd8+ Rxd8 10.Qg5 Rg8 11.d3 Bd4 12.Na3 Na6 13.Be3 Nb4 14.O-O-O Nxa2+ 15.Kb1 Nc3+ 16.bxc3 Bxc3 17.d4 Nxe4 18.Qh4 Bf5 19.f3 g5 20.Qxh7 Bxh7 21.fxe4 Bxe4 22.dxe5 dxe5 23.Rhf1 Bxg2 24.Rg1 Bf3 25.h4 Bxd1 26.Rxd1 gxh4 27.Rd3 Bb4 28.Nc4 e4 29.Ne5+ Kb5 30.Rb3 a5 31.c4+ Ka6 32.Ka2 c5 33.Nd7 Rg2+ 34.Kb1 b6 35.Ne5 a4 36.Rd3 exd3 37.Nc6 d2 38.Nxb4+ cxb4 39.Kc2 Rd8 White resigned, austindark - AkeZ, FICS, 2008. 


Or 7... g6 8. Qg4+ Black resigned, Kazzakii - kkpsA, FICS, 2014. 


Or 7...Bxf2+ 8.Kxf2 Nf6 9.Qh3+ Kc6 10.Qc3+ Kd7 11.Nxd8 Kxd8 12.d3 Ng4+ 13.Ke1 Nc6 14.Bg5+ Ke8 15.h3 Nh6 16.Bxh6 gxh6 17.Rf1 Be6 18.Qd2 Nd4 19.c3 Nc6 20.Qf2 Ke7 21.Qf6+ Kd7 22.Qg7+ Ne7 23.Qxh6 Rag8 24.g4 Ng6 25.Qe3 Nf4 26.Rxf4 exf4 27.Qxf4 Rf8 28.Qe3 b6 29.Nd2 Rf7 30.Kd1 Rg8 31.Kc2 Rgf8 32.d4 Kc8 33.d5 Bd7 34.Qe2 Kb7 35.Rf1 Black resigned, Mannixcannon - Txanan, FICS, 2014)


8.Qf5+


Instead, 8.Qf3 seems essential.


Alternately 8.Qg4+ Ke7 9.Qg5 Kxf7 10.Qxf6+ Nxf6 11.d3 Ng4 12.O-O Nc6 13.c3 Be6 14.b4 Bb6 15.a4 a6 16.h3 Nf6 17.Bg5 Nh5 18.Nd2 h6 19.Bh4 g5 20.Bg3 Raf8 21.Nf3 Ke7 22.b5 axb5 23.axb5 Na5 24.c4 Nb3 25.Ra3 Nd4 26.Nxd4 Bxd4 27.Ra7 Bxa7 28.Bh2 Nf4 29.Bxf4 gxf4 30.Kh1 Rhg8 31.f3 Rf6 32.Kh2 Rg3 White resigned, drcollie - nytwotwenty, FICS, 2006; or 8.O-O g6 (8...Nc6 9.Nxh8 Nd4 10.Na3 Bxa3 11.bxa3 Nxc2 12.Rb1 b6 13.Rb2 Nd4 14.Rb1 Bb7 15.d3 Ne7 16.Nf7 Rf8 17.Ng5 Ba6 18.Rd1 g6 19.Qxh7 Ne2+ 20.Kh1 Nxc1 21.Nf3 Ne2 22.Rd2 Nd4 23.Nxd4 exd4 24.Rf1 Rf7 25.Qh3+ Kd8 26.f4 Nc6 27.Qf3 g5 28.f5 Ne5 29.Qg3 Nxd3 30.Rxd3 Bxd3 31.Qxd3 Qe5 32.Re1 Rh7 33.h3 g4 34.Kg1 gxh3 35.Qxh3 Rxh3 36.gxh3 Qg3+ 37.Kf1 Qxh3+ 38.Kf2 Qh2+ 39.Kf3 Qh3+ 40.Kf4 Qxa3 41.Re2 Qe3+ 42.Rxe3 dxe3 43.Kxe3 Ke7 44. Kf4 Black forfeited on time, RattyMouse - attackme, FICS, 20089.Qh3+ (9.Qf3 Qxf3 10.gxf3 Ke7 11.Nxh8 Kf8 12.d3 Kg7 13.Nxg6 hxg6 14.c3 Bh3 15.Re1 Nd7 16.a4 Rf8 17.b4 Bb6 18.a5 Bxf2+ 19.Kxf2 Ngf6 20.Kg3 Be6 21.h4 Nh5+ 22.Kf2 Bg4 23.Nd2 Nf4 24.Kg3 Nxd3 25.Re3 Nxc1 26.fxg4 Ne2+ 27.Rxe2 c6 28.Rh1 Black resigned, radejanus - Blus, FICS, 2014) 9...Kc6 10.Qf3 Qxf3 11.gxf3 Bh3 12.Re1 Nf6 13.Nxh8 Nbd7 14.Nf7 Nh5 15.Ng5 Nf4 16.Nxh3 Nxh3+ 17.Kg2 Nxf2 18.c3 Nf6 19.b4 Bb6 20.c4 Nd3 21.Rd1 Nxb4 22.Ba3 Nc2 23.Nc3 Nxa1 24.Rxa1 Rf8 25.Rf1 Nh5 26.h3 Nf4+ 27.Kg3 Nd3 28.Ne2 h6 29.Kg4 Nf2+ 30.Kg3 g5 31.c5 Nxe4+ 32.fxe4 Rf2 33.Kxf2 Bxc5+ 34.Bxc5 Kxc5 35.Ng3 Kd4 36.Nh5 Kd3 37.Nf6 Kxd2 38.Nd7 Kd3 39.Kf3 Kc4 40.Rc1+ Black forfeited on time, Rattymouse - COHGNH, FICS, 2007. 


8...Qxf5 9.exf5 Nf6 10.Nxh8 Ke7 11.c3 Bxf5 12.d4 Bb6




Black is temporarily down the exchange, but White's Knight on h8 will soon be lost, giving the defender the advantage.


13.dxe5 dxe5 14.Bg5 Nc6 15.O-O Rxh8 16.Re1 h6 17.Be3 Bxe3 18.Rxe3 Rd8 19.Na3 a6 20.Nc4 Ke6 21.f3 Nd5 22.Re2



A slip, which compounds White's problems.


22...Bd3 23.Rd2 Bxc4 24.b3 Be2 25.Rxe2 Nxc3 26.Rc2 Rd1+ 27.Rxd1 Nxd1 28.Rd2 Nc3 29.a3 Nd4



30.Kf2 Kf5 31.Rd3 Nd5 32.g3 g5 33.g4+ Kf4 34.h3 c6 35.Kg2 Ne2 36.Kf2 Nc1 37.b4 White forfeited by disconnection




Sunday, May 10, 2015

Keep Your Eye On The Prize

Putting Black's Queen on f6, with the idea of exchanging Her Majesty, is a common anti-Jerome Gambit strategy. In the following game, Black introduces the plan, then wavers - and the game ends quickly.


Philidor 1792 - guest1862
3 0 blitz, www.bereg.ru, 2015

1.e4 e5 2.Bc4 Bc5 3.Bxf7+ 




Another example of the Abrahams Jerome Gambit.


As far as I can tell, Alonzo Wheeler Jerome did not play the Bishop sacrifice out of the Bishop's Opening, but Gerald Abrahams attributed the gambit to him nonetheless.


4...Kxf7 4.Qh5+ Ke6 5.Qf5+ 


Houdini judges the Abrahams Jerome less harshly than it does the Jerome proper, suggesting that here 5.Nf3, instead, equalizes. This bears further examination, as this blog has in the past presented only two losses by White with 5.Nf3 - see "The Abrahams Jerome Gambit (Part II)".


5...Kd6 6.Nf3 Qf6 7.d4 Bxd4 




Black overlooks the reason behind his 6th move, that of exchanging Queens, and is subsequently severely punished. 

Some contrasting examples: 7...Qxf5 8.dxc5+ Kxc5 9.exf5 (9.Be3+ Kd6 10.exf5 Nf6 11.0-0 [11.Nc3 Re8 12.0-0-0+ Ke7 13.Nd5+ Nxd5 14.Bg5+ Nf6 15.Nxe5 Kf8 16.Bxf6 gxf6 17.Nxd7+ Bxd7 White resigned, Geeeman - ludonix, FICS, 2014] 11...Nd5 12.Rd1 c6 13.Nc3 Rf8 14.Nxd5 cxd5 15.b4 Rxf5 16.Bc5+ Ke6 17.Re1 d6 18.Be3 Nc6 19.b5 Nb4 20.Re2 Bd7 21.Rd1 Bxb5 22.Ree1 Nxc2 23.Rf1 Bxf1 24.Kxf1 d4 25.Bd2 d5 26.Rc1 d3 27.g4 Rxf3 28.Kg2 Rff8 29.f3 Nd4 30.Rf1 e4 31.f4 Rac8 32.Bc3 Rxc3 White resigned, KevinSI - fedand, FICS, 20149...d5 10.Nxe5 Ne7 11.0-0 Nxf5 12.Nd3+ Kd6 13.Bf4+ Kd7 14.Nc5+ Kc6 15.b4 b6 16.Nd3 Nd4 17.Ne5+ Kb7 18.Nc3 Nxc2 19.Rac1 Nxb4 20.a3 N4c6 21.Nxd5 Be6 22.Nxc6 Nxc6 23.Rfd1 Rhd8 24.Nxc7 Rxd1+ 25.Rxd1 Rd8 26.Rxd8 Nxd8 27.h3 Bb3 28.g4 a6 29.Kg2 Nf7 30.h4 h6 31.h5 a5 32.Nb5 Bd5+ 33.Kg3 Kc6 34.Nd4+ Kc5 35.Nf5 Kc4 36.Nxg7 Kb3 37.Nf5 Kxa3 38.Nd4 a4 39.g5 hxg5 40.Be3 Kb4 41.Kg4 Kc4 42.f4 gxf4 43.Kxf4 a3 44.Nc2 a2 45.Bd4 Kb3 46.Ne3 Be6 47.Nd1 b5 48.Ba1 b4 49.Nb2 Kc2 50.Na4 b3 51.Bb2 Bd7 52.Nc5 Kxb2 53.Nxd7 a1Q White resigned, KevinSI - lavaprut, FICS, 2014. 


8.Nxd4 exd4 9.Qd5+ Ke7 10.Bg5 Black resigned




Friday, May 8, 2015

Shelter In Place


All of my games in the first round of the ongoing Chess.com Italian Game tournament (see  "Anybody Want A Couple of Pieces?") have been completed (without a Jerome Gambit in sight), and with 7 wins, 3 draws and 2 losses, I have to wait to see how many of my erstwhile opponents - I am thinking of LVercotti (currently 8 wins and 1 draw), mikerj (currently 6 wins, 1 draw and 2 losses) and FedorMarkov (currently 6 wins, 1 draw and 2 losses ) in particular - catch or pass me. I think three players advance to the next round, so I have my chances...

In the meantime, in the third round of the earlier Chess.com Italian Game tournament, (see "Anybody want a (couple of) piece(s) of me?") I managed a successful Jerome Gambit (see "Do I Share Everything? No.") but I do not think that I will be advancing to the next round, as that may be my only win. Que sera sera.

Wednesday, May 6, 2015

Theory on Non-Theory



Even in the non-main-line lines of the non-main-line Jerome Gambit, there is theory, and practice, as Philidor1792 demonstrates in the game below.

Philidor1792 - jenskun
Russia Central Federal District vs Phil, 
Chess.com, 2015

1.e4 e5 2. Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 



5.Nxe5+ Nxe5 6.Qh5+ Ng6 7.Qd5+ Ke7 



Infrequently played, but not bad.

8. Qxc5+

The experimental 8.Qg5+ was tried in Wall,B - CKFM, FICS, 2012 (1-0, 44). 

8... d6 9. Qe3 

The Database has three games with 9.Qg5+: fehim - Schiele, FICS, 2006, (0-1, 59); stampyshortlegs - calchess10, JGTourney4, ChessWorld 2009 (1-0, 31); and Wall,B - Vassilev,R, Chess.com, 2010 (1-0, 32).

9... Be6

Instead, 9... Nf6 was seen in three MrJoker games:  MrJoker - Yuvi, ICC, 2011 (1-0, 16); MrJoker - Cleanbishop, ICC, 2012 (1-0, 46); and MrJoker - taz, ICC, 2013 (1-0, 43).

The Bishop move seems to invite f2-f4 by White, gaining a tempo.

10.O-O Nf6 11.f4 Bf7 12.f5 Ne5 13.d4 Nc6 14.e5 dxe5 15.dxe5 Nd5 16.Qg3 Kf8 

The extra tempo for White, the "Jerome pawns" and Black's uneasy King have lead to an equal game. As we have frequently seen in Jerome Gambit lore, when White has equalized, he has the advantage.

17.Bg5 Qc8 18.e6 Bh5 19.Nc3 Nxc3 20.Qxc3 Rg8 21.f6 gxf6 22.Qxf6+ Ke8 23.Rad1 Qd8 24.Rxd8+ Rxd8 25.b4 b5 26.a4 a6 27.axb5 Black resigned


Monday, May 4, 2015

Do I Share Everything? No.

I have shared the good and the bad about the Jerome Gambit on this blog - winning games and losing games, helpful analysis and scary analysis.

But I haven't shared everything.


Here is an example from last year, drawn from the post "Jerome pawns -Clowning Around" where I was discussing preparations for my first-round game against djdave28 in the current Chess.com Italian Game tournament

After my discouraging loss with the Jerome Gambit in my previous Chess.comItalian Game tournament (perrypawnpusher - Buddy_Thompson), I knew that I had to cook up something new, or risk facing a future opponent who just "looked the refutation up" (and not even on this blog, mind you, but in my recent games on Chess.com).
I was happy that I did do the research, too, because in my third Jerome Gambit in my current tourney, my opponent went straight for the same line (leaving out the superfluous Queen check).
I won that encounter, and two rounds later I found myself facing the same opponent. Would he repeat the line - even though I had been victorious? Of course he would!

perrypawnpusher - djdave28
Italian Game tournament, Round 3
Chess.com, 2015

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 




4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.Qf5+




Here is a relevant computer game: 7.f4 Qf6 8.Qxe5+ Qxe5 9.fxe5 Kxe5 10.b4 Bd4 11.c3 Bb6 12.d3 d5 13.Rf1 dxe4 14.Bf4+ Ke6 15.dxe4 Nf6 16.Nd2 Bd7 17.a4 a5 18.b5 Rhf8 19.O-O-O Rac8 20.h4 Bc5 21.Nb3 Bb6 22.c4 Nh5 23.g3 Nxf4 24.Rxf4 Ke7 25.Rxf8 Rxf8 26.Rd3 c5 27.e5 Rf1+ 28.Kb2 Re1 29.Rd6 Bc7 30.Nxc5 Bc8 31.Rd5 Rxe5 32.h5 b6 33.Na6 Rxd5 34.Nxc7 Rxh5 35.Nd5+ Kd6 36.Nxb6 Be6 37.Kc3 Kc5 38.Na8 Rh3 39.Nc7 Rxg3+ 40.Kd2 Bxc4 41.Na6+ Kd6 42.Nb8 Ra3 43.Nc6 Rxa4 44.Nd4 Kc5 45.Nf3 Kd5 46.b6 Ra3 47.Nh4 Ke4 48.b7 Rb3 49.Ng2 Rxb7 50.Ne3 Bd3 51.Nd1 Kd4 52.Ke1 a4 53.Kf2 a3 54.Kg3 Be2 White resigned,  Matacz CCT7 - Imp 0.74b, CCT7, 2005.


7...Kd6 8.f4 Qf6 9.fxe5+ Qxe5 10.Qxe5+ Kxe5 11.b4 Bd4




Previously, my opponent had backed up his Bishop, before making this strike: 11... Bb6 12.Bb2+ Bd4 (12...Kxe4? 13.Bxg7 Black resigned, axykk - bromby, FICS, 2011) 13.c3 Bb6 14.d4+ Kxe4 15.O-O Nf6 16.Nd2+ Kd3 17.Nf3 d6 18.Rad1+ Kc4 19.Nd2+ Kb5 20.a4+ Kxa4 21.c4 Kxb4 22.Rf3 Black resigned, perrypawnpusher - djdave28, Chess.com Italian Game Tournament, Round 1, 2014. 


12.c3 Bb6 13.d4+ Kxe4 14.O-O 


Here is another interesting computer game: 14.Nd2+ Kf5 15.O-O+ Ke6 16.a4 a5 17.b5 Nf6 18.Ba3 Re8 19.Rae1+ Kf7 20.Rxe8 Kxe8 21.Re1+ Kf7 22.Nc4 Nd5 23.Rf1+ Ke6 24.Re1+ Kf6 25.Rf1+ Kg5 26.Bc1+ Kh4 27.Rf5 Nxc3 28. Be3 Bxd4 29.Bxd4 Ne2+ 30.Kf2 Nxd4 31.Rf4+ Kg5 32.Rxd4 b6 33.Ne3 Ra7 34.Rc4 Kf6 35.Nd5+ Ke5 36.Nxb6 cxb6 37.Rxc8 d5 38.Rh8 h6 39.Rb8 Rf7+ 40.Ke3 Rf6 41.h3 h5 42.Rh8 Rh6 43.Re8+ Re6 44.Rc8 Kd6+ 45.Kd3 h4 46.Rc2 Re4 47.Rc6+ Ke5 48.Rxb6 Rxa4 49.Ra6 Ra2 50.b6 Rxg2 51.Rxa5 Rb2 52.Ra6 g5 53.Kc3 Rb5 54.Kc2 g4 55.hxg4 Kf4 56.Ra4+ Kg5 57.Rd4 h3 58.Rd2 Rxb6 59.Rxd5+ Kh4 60.Rd2 Rf6 61.g5 Kxg5 62.Rd5+Kg4 63.Rd1 h2 64.Kb3 Rf4 65.Ka2 Rf3 66.Rc1 Kh3 67.Rc8 Kg2 68.Rg8+ Rg3 69.Rh8 h1=Q 70.Rxh1 Kxh1 71.Kb2 Kg2 72.Kc2 Kf1 73.Kd2 Rh3 74.Kc1 Ke2 75.Kc2 Rd3 White resigned, Spike1.2 - Fritz 6.0, USA, 2006. 


14...Kd5 15.Rf8 


This move is the result of research into my previous game with my opponent. You won't find it in my notes to that match, however.


What does it do? Not very much. It has some stifling effect on Black's development, but it conjures up something a Bizarro Nimzovich might have commented upon: It's strong because it is so weak! It does so much by doing so little!


It actually emboldens Black's King to stay around the center of action, and return a piece for a couple of pawns.


15...a5 16.b5 Kc4 17.Na3+ Kxc3 18.Rf3+ Kxd4 

19.Bb2+ Kd5+ 20.Kf1 Bd4 21.Rd1 Nf6



Black has two extra pawns, but his King looks pretty shaky.


Does White have an attack, or is he reduced to pawn-grabbing?


22.Bxd4 Ke6 23. Bxf6 gxf6 24.Re1+ Kf7 25.Rc3




This definitely looks like prospecting for pawns, and perhaps Black should let White have his way with 25...Kg6 26.Rxc7 d5. The theme of "Black's light-squared Bishop staying at home, undeveloped and blocking his Rook" would slowly be addressed by the defender.


25...c6 26.Nc4 


Headed toward the "hole" at d6.


26...d5 27.Nd6+ Kg6 28.Rg3+


Suddenly the idea of invading the 7th rank suggests itself to White, along with taking advantage of the unfortunate Bishop at c8 and the pawn it defends at b7..


28....Kh5 29.b6 


Another "do nothing" move. There was no way that I was going to exchange this pawn off and open lines for Black's Bishop. If my opponent's connected and passed c- and d-pawns were going to be the death of me - then, so be it.


29...Rb8 30.Re7 Bg4 31.h3 Bc8 32.Rgg7 




Black resigned


It might seem a bit early for the second player to give up the ghost, but his position certainly is tied up.