Showing posts with label ChessBase. Show all posts
Showing posts with label ChessBase. Show all posts

Sunday, February 17, 2013

Opening Report: Take a breath...

So far, the recent Opening Report on the Jerome Gambit (see 1, 2 and 3), based on the 27,000+ games contained in TheDatabase, has had few surprises. I'd like to point out a couple of interesting findings, however, before pursuing a deeper look.

The Opening Report highlights a number of games from an interesting 2008 30-game human vs computers match (starting with "Jerome Gambit: Drilling Down (1)"

This post starts an extended series (which may be interrupted from time-to-time for news, games or analysis) wherein the intrepid "RevvedUp" (a good chess player) and his trusted companions Hiarcs 8, Shredder 8, Yace Paderborn, Crafty 19.19 and Fritz 8 explore the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) by taking turns playing the White and Black pieces. 

The human moves first, and takes notice of the defense the computer plays. In the next game, where he moves second, the human plays that defense against a new computer – and sees how it attacks. In the third game, the human plays the recent attack against his new computer foe. Collectively, the players drill deeper and deeper into the Jerome Gambit.


It also shows that Jerome Gambit players sometimes prefer chaos to clarity, as recommended responses to the Jerome Gambit Declined (again, based on the examples in TheDatabase) - 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kf8 or 4...Ke7 - are given as 5.Nc3 and 5.Nxe5, respectively.

The straight-forward Bishop retreat 5.Bb3 (as well as its cousin, 5.Bd5) is stronger.

We will use the ChessBase Opening Report to dig deeper into the Jerome Gambit (through the eyes of TheDatabase), but first there are a few new interesting games from Philidor1792 to look at.

Friday, February 15, 2013

Opening Report (Part 3)



I decided to have ChessBase8 give me an Opening Report on the Jerome Gambit, based on The Database. I got a whole lot of information, and I was only dealing with the first few moves...

Opening report

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

9062 games in 'TheDatabase'


b) 4...Kf8

207 games, 2000-2012, 
Black scores averagely (44%).
Elo-Ø: 1353, 193 games. Performance = Elo 1304
played by: blackburne, 1778, 2/2; Talwhu, 1722, 1/1; PatOrMat, 1685, 1/1; Rolmx, 1683, 0/1; vilinar, 1666, 1/1

You should play: 5.Nc3

AAlekhine (1586) - blackburne (1795)
thematic ChessWorld.net, 2007
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kf8 5.Nc3 d6 6.d3 Kxf7 7.Ng5+ Kf8 8.Qf3+ Qf6 9.Qxf6+ Nxf6 10.0-0 Nd4 11.Be3 Nxc2 12.Rad1 Bxe3 13.Nf3 Bg4 14.h3 Bxf3 15.gxf3 Bf4 16.a3 Nd4 17.Kg2 Ke7 18.Rg1 g5 19.Kf1 Nxf3 20.Rg2 Rhg8 21.Nd5+ Nxd5 22.exd5 h5 23.h4 Nxh4 24.Rg1 g4 25.d4 Nf3 26.Rg2 h4 27.Ke2 Nxd4+ 28.Kd3 h3 29.Rgg1 h2 30.Rh1 g3 31.fxg3 Rxg3+ 32.Kc4 Rb3 33.Rxd4 exd4 34.Kxb3 d3 35.Kc3 d2 36.Kc2 Kf6 37.Kd1 Re8 38.b4 Re1+ 39.Rxe1 dxe1Q+ 40.Kxe1 h1Q+ 41.Kf2 Qe4 42.a4 Qe3+ 43.Kg2 Ke5 44.b5 Ke4 45.a5 Qf3+ 46.Kg1 Qe2 47.b6 Kxd5 48.bxa7 Be3+ 49.Kh1 Bxa7 50.a6 b6 51.Kg1 Ke4 52.Kh1 Kf3 53.Kg1 Qg2# 0-1


Plejade - erch
ChessWorld.net, 2003
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kf8 5.Nc3 Kxf7 6.Nd5 Nge7 7.Nxe7 Qxe7 8.d3 Rf8 9.Be3 Kg8 10.Bxc5 Qxc5 11.Qd2 Nb4 12.c3 Nc6 13.d4 exd4 14.Nxd4 Nxd4 15.0-0 Nc6 16.Rfd1 Ne5 17.Qd5+ Qxd5 18.exd5 Nc4 19.g3 Nxb2 20.Rd4 b5 21.d6 cxd6 22.Rxd6 Rf6 23.Rxf6 Nd3 24.Rd1 gxf6 25.Rxd3 Kf8 26.Rd6 Kf7 27.f4 a5 28.Rb6 Ba6 29.h4 d5 30.g4 b4 31.cxb4 d4 32.b5 d3 33.bxa6 Rd8 34.Rb1 Ke6 35.f5+ Ke5 36.Kf1 Kd4 37.Ke1 Ke3 38.Kd1 Kd4 39.Kd2 Rc8 40.Rb5 Rc2+ 41.Kd1 Rxa2 42.a7 Ra1+ 43.Kd2 Ra2+ 44.Kd1 Kc3 45.Rc5+ Kd4 46.Rc6 Ke3 47.a8Q Rd2+ 48.Ke1 Rg2 49.Rc3 Rg1# 0-1

Alternative: 5.Bxg8

drewbear (1718) - BrainFreeze (1685)
thematic ChessWorld.net, 2007
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kf8 5.Bxg8 Rxg8 6.d3 d5 7.Ng5 dxe4 8.Nxh7+ Ke8 9.Qh5+ Ke710.Bg5+ Kd6 11.Bxd8 Nxd8 12.Qg6+ Kd5 13.Nf6+ 1-0


SIRMO (1798) - AAlekhine (1625)
thematic ChessWorld.net, 2007
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kf8 5.Bxg8 Rxg8 6.c3 Qf6 7.d3 d6 8.a4 Ke8 9.Bg5 Qg6 10.h4 h6 11.h5 Qe6 12.Bd2 Bd7 13.b4 Bxf2+ 14.Kxf2 Rf8 15.Rh3 Ke7 16.Be3 Rae8 17.b5 Na5 18.Nbd2 Kd8 19.Ke2 Kc8 20.c4 g5 21.Nh2 Qf6 22.Rf3 Qe6 23.Qf1 g4 24.Rxf8 g3 25.Rxe8+ Bxe8 26.Nhf3 Bxh5 27.Qh1 Qf7 28.Qh3+ Kb8 29.Qxg3 b6 30.Bxh6 Nb7 31.Qg7 Qxg7 32.Bxg7 Nc5 33.a5 Ne6 34.Bf6 Nf4+ 35.Kf1 Nxd3 36.axb6 cxb6 37.Be7 Kc8 38.Bxd6 Kd7 39.Nxe5+ Nxe5 40.Bxe5 Ke6 41.Bc7 Kd7 42.Rxa7 Kc8 43.Bxb6 Kb8 44.c5 Bd1 45.Nc4 Bb3 46.Nd6 Bc2 47.Rd7 1-0


Superpippo (1597) - TajniDobrovoljci (1607)
FICS rated blitz game, 2001
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kf8 5.Bxg8 Kxg8 6.0-0 d6 7.c3 Bg4 8.d4 exd4 9.Qb3+ Kf8 10.Nxd4 Bxd4 11.cxd4 b6 12.Be3 Qf6 13.Nd2 Nxd4 14.Bxd4 Qxd4 15.Nf3 Bxf3 16.Qxf3+ Ke7 17.Rad1 Qf6 18.e5 Qxf3 19.exd6+ cxd6 20.Rfe1+ Kf7 21.gxf3 Rhd8 22.Re4 d5 23.Rh4 h6 24.Kg2 Rd7 25.f4 Rad8 26.Kf3 Re7 27.Rh5 d4 28.Re5 d3 29.Ke3 d2 30.Rxd2 Rxd2 31.Kxd2 Rxe5 32.fxe5 g5 33.Ke3 Ke6 34.Ke4 h5 35.f4 gxf4 36.Kxf4 a5 37.a4 Kd5 38.Kf5 Kc4 39.e6 Kb3 40.e7 Kxa4 41.e8Q+ Kb3 42.Qe2 Kb4 43.Qc2 b5 44.Qc3+ Ka4 45.Qa3# 1-0

drewbear (1718) - karmmark (1387)
thematic ChessWorld.net, 11.2007
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kf8 5.Bxg8 1-0


LSS (1875) - KaptKoca (1614)
FICS server game, rated blitz match, 2000
1.e4 e5 2.Bc4 Nc6 3.Nf3 Bc5 4.Bxf7+ Kf8 5.Bxg8 Rxg8 6.0-0 d6 7.d3 h6 8.Nc3 Bg4 9.h3 Bh5 10.Kh1 Ke8 11.g4 Bf7 12.Nh2 Rf8 13.f4 exf4 14.Rxf4 Ne5 15.Nd5 Bxd5 16.Rxf8+ Kxf8 17.exd5 Qh4 18.Qf1+ Kg8 19.Qg2 Rf8 20.b4 Bb6 21.Bb2 Rf2 22.d4 Rxg2 23.Kxg2 Nc4 24.Bc3 Ne3+ 25.Kh1 Qxh3 26.Rg1 Nxc2 27.Bb2 Nxd4 28.Bxd4 Bxd4 29.Rg2 Be5 30.a4 Bxh2 31.Rxh2 Qxg4 32.b5 Qxa4 0-1

Superpippo (1678) - raffa (1406)
FICS rated blitz game, 2002
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kf8 5.Bxg8 Rxg8 6.d4 exd4 7.c3 Qf6 8.cxd4 Nxd4 9.Nxd4 Bxd4 10.0-0 d6 11.Nc3 Bxc3 12.bxc3 Qxc3 13.Bg5 g6 14.Rc1 Qe5 15.f4 Qxe4 16.Re1 Qf5 17.Rxc7 Rg7 18.Qxd6+ 1-0

--------------------------------------------------------------------------------

c) 4...Ke7

33 games, 1999-2011,
Black scores badly (29%).
Elo-Ø: 1287, 31 games. Performance = Elo 1125
played by: agno, 1607, 0/1; MRKumar, 1602, 0/1; AAlekhine, 1601, 1/2; Brown, 1552, 1/1; Bucephale, 1528, 0/1

You should play: 5.Nxe5

Nesseerd (1111) - nontheist (1291)
FICS server game, rated blitz match, 2009
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Ke7 5.Nxe5 Nxe5 6.Bd5 c6 7.Qh5 Ng6 8.Qe5+ Nxe5 0-1

Wednesday, February 13, 2013

Opening Report (Part 2)


I decided to have ChessBase8 give me an Opening Report on the Jerome Gambit, based on The Database. I got a whole lot of information, and I was only dealing with the first few moves...


Opening report

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

9062 games in 'TheDatabase'


4. Moves and Plans

a) 4...Kxf7

8794 games, 1874-2012, 
Black scores well (57%).
Elo-Ø: 1394, 7469 games. Performance = Elo 1392
played by: Shredder 8, 3376, 3/3; YOUCANWIN, 3284, 2/2; Yace Paderborn, 3126, 2.5/3; Fritz 8, 3076, 8/11; Hiarcs 8, 3076, 5/6;

You should play: 5.Nxe5+

Shredder 8 (3374) - RevvedUp (2038)
blitz 2 12, 2006
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.f4 d6 8.fxe5 dxe5 9.Qe2 Nf6 10.Qc4+ Kd6 11.b4 Bb6 12.Nc3 Be6 13.Qe2 c6 14.Na4 Qe7 15.Nxb6 axb6 16.0-0 Rhf8 17.a3 Kc7 18.Bb2 Bg4 19.Qe3 h6 20.d4 exd4 21.Qg3+ Kd7 22.e5 Be2 23.exf6 Rxf6 24.Rfe1 Raf8 25.Bxd4 1-0


Shredder 8 (3377) - RevvedUp (2034)
blitz 2 12, 2006
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 7.Qd5+ Kf8 8.Qxc5+ d6 9.Qe3 Qh4 10.Nc3 c6 11.d3 Nf6 12.Qd4 Ke7 13.h3 Qh5 14.0-0 Qc5 15.Qa4 Re8 16.Be3 Qe5 17.f4 Qe6 18.f5 Qf7 19.fxg6 Qxg6 20.Rf3 h6 21.Raf1 Be6 22.Qb4 b6 23.e5 Nd5 24.Qxd6# 1-0

Shredder 8 (3377) - RevvedUp (2031)
blitz 2 12, 2006
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ g6 7.Qxe5 d6 8.Qxh8 Qh4 9.0-0 Nf6 10.Qd8 Qxe4 11.Qxc7+ Qe7 12.Qxe7+ Kxe7 13.d3 Be6 14.Be3 Bxe3 15.fxe3 Rf8 16.e4 Ng4 17.Rxf8 Kxf8 18.Nc3 a6 19.Rf1+ Ke7 20.h3 Ne5 21.Kf2 h5 22.h4 Ng4+ 23.Ke2 Ne5 24.b4 Bg4+ 25.Ke3 Be6 26.b5 a5 27.Nd5+ Bxd5 28.exd5 1-0

Yace Paderborn (3124) - RevvedUp (2039)
blitz 2 12, 2006
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.f4 d6 8.fxe5 dxe5 9.Qh3+ Kd6 10.Qd3+ Ke7 11.Qg3 Kf7 12.Qxe5 Bd4 13.Rf1+ Nf6 14.Qh5+ Ke7 15.Qg5 Rg8 16.e5 h6 17.Qf4 Re8 18.exf6+ Kf7+ 19.Kd1 Bxf6 20.Nc3 Kg8 21.Ne4 Rf8 22.Rf3 Bd7 23.Nc5 Bc6 24.Ne6 Bxf3+ 25.gxf3 Qd6 26.Qxd6 cxd6 27.Nxf8 Rxf8 28.f4 g6 29.d3 h5 30.a4 a6 31.Ra3 Rf7 32.c4 Rd7 33.b3 d5 34.Kc2 Kf7 35.Be3 dxc4 36.bxc4 Ke6 37.Rb3 Bd4 38.Bxd4 Rxd4 39.Rb6+ Kf5 40.Rxb7 Rd6 41.Rf7+ Kg4 42.Kc3 Kh3 43.f5 gxf5 44.Rxf5 Rh6 45.Rf2 h4 46.d4 Kg4 47.c5 h3 48.d5 1-0

Yace Paderborn (3127) - RevvedUp (2032)
blitz 2 12, 2006
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ g6 7.Qxe5 d6 8.Qxh8 Qh4 9.0-0 Bd7 10.d4 Bb6 11.Nd2 Re8 12.Nf3 Qh5 13.Ng5+ Kf8 14.Nxh7+ Kf7 15.Bd2 Nf6 16.Qxf6+ Kg8 17.Ng5 Rf8 18.Qe7 Bc8 19.Bc3 d5 20.exd5 Bf5 21.Bb4 Qh6 22.c3 c5 23.dxc6 Bd8 24.Qxf8+ Qxf8 25.Bxf8 Kxf8 26.cxb7 1-0

Fritz 8 (3074) - RevvedUp (2037)
blitz 2 12 2, 2006
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.f4 d6 8.fxe5 dxe5 9.Rf1 Nf6 10.Qe2 Ke7 11.d3 Qd4 12.c3 Qd6 13.Nd2 Bg4 14.Rxf6 Bxe2 15.Rxd6 Bh5 16.Rd5 Bd6 17.Nc4 Bf7 18.Bg5+ Ke6 19.Rd1 h6 20.Bh4 Rhe8 21.Bg3 Kd7 22.Nxe5+ Rxe5 23.Rxe5 Bxe5 24.Bxe5 Bxa2 25.Bxg7 Rg8 26.Bxh6 Rxg2 27.Rd2 Rxd2 28.Kxd2 Bf7 29.d4 c6 30.Ke3 b5 31.b4 Ke6 32.h3 Kf6 33.Kf4 Bc4 34.Bf8 Be6 35.h4 a6 36.h5 Bc4 37.h6 Kg6 38.Ke5 Bd3 39.d5 cxd5 40.exd5 Kf7 41.Bc5 Bh7 42.d6 Ke8 43.Kf6 Bd3 44.Kg7 Kd7 45.h7 1-0

Main line:


5...Nxe5 6.Qh5+ Ng6 7.Qxc5 d6  45%, 
5...Nxe5 6.Qh5+ Ke6  54%, 
5...Nxe5 6.d4  49%, 

Critical line:
5...Nxe5 6.Qh5+ Kf8 7.Qxe5 Bd6 8.Qf5+ 22 % White. 

--------------------------------------------------------------------------------

Monday, February 11, 2013

Opening Report (Part 1)


I decided to have ChessBase8 give me an Opening Report on the Jerome Gambit, based on The Database. I got a whole lot of information, and I was only dealing with the first few moves...

Maybe I'll ask it, later, to look deeper.

Opening report

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

9062 games in 'TheDatabase'

1. History

Earliest game:

Jerome,A - Shinkman,W, 1874
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.Qf5+ Kd6 8.f4 Qf6 9.fxe5+ Qxe5 10.Qf3 Nf6 11.d3 Ke7 12.Nc3 g5 13.Rf1 c6 14.g3 d5 15.Bd2 Bg4 16.Qg2 Rhf8 17.h3 Nxe4 18.Bf4 gxf4 19.gxf4 Rxf4 20.Nxe4 Rxf1+ 21.Kxf1 and Mr. Shinkman announced loss of the Queen or mate in six moves. 0-1

Latest grandmaster game:

BlackDemon (2563) - wkw (2662)
FICS , rated lightning match, 2009
1.e4 Nc6 2.Nf3 e5 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.0-0 Nf6 6.d3 Rf8 7.Be3 Bxe3 8.fxe3 d5 9.exd5 Nxd5 10.Nxe5+ Kg8 11.Rxf8+ Qxf8 12.Nxc6 Qc5 13.Qe2 bxc6 14.d4 Bg4 15.dxc5 Bxe2 16.Nd2 Bh5 17.e4 Nb4 18.c3 Nd3 19.b4 a5 20.a4 axb4 21.cxb4 Nxb4 22.a5 Nd3 23.a6 Ra7 24.Nb3 Bf7 25.Rd1 Bxb3 26.Rxd3 Be6 27.Rd8+ Kf7 28.Rb8 Rxa6 29.Rb7 Ke7 30.Rxc7+ Bd7 31.Kf2 Ra5 32.g3 Rxc5 33.Ke3 Ra5 34.Rb7 Ra2 35.h3 Ra3+ 36.Kf4 c5 37.h4 c4 38.Ke5 Rd3 39.Ra7 c3 40.Rc7 Kd8 41.Rc4 Bb5 42.Rc5 Ba4 43.Ke6 c2 44.Kf7 Rd7+ 45.Ke6 Rc7 46.Rxc2 Bxc2 47.Kd5 Rd7+ 48.Ke5 Re7+ 49.Kf4 Rxe4+ 50.Kf3 Ke7 51.Kf2 Kf6 52.Kg2 Kf5 53.Kf2 Kg4 54.Kg2 Re2+ 55.Kf1 Bd3 56.h5 Kxg3 57.h6 Re3+ 58.Kg1 Re1# White checkmated 0-1


Latest game:

Wall,B - Filipmihov
FICS, 2012
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf8 7.Qxe5 d6 8.Qg3 Nf6 9.d3 Ng4 10.0-0 Qf6 11.c3 Bxf2+ 12.Rxf2 Qxf2+ 13.Qxf2+ Nxf2 14.Kxf2 Be6 15.Nd2 Ke7 16.Nf3 Rhf8 17.h3 Rf7 18.Bg5+ Kd7 19.Kg3 h6 20.Bd2 g5 21.Rf1 Raf8 22.c4 c6 23.b4 b6 24.c5 g4?! 25.hxg4 Rg8 26.g5 hxg5 27.Rh1 g4 28.Ng5 Re7 29.cxd6 Kxd6 30.Rh6 Kd7 31.a4 Bf7 32.a5 b5?! 33.Bf4 Rg6?? 34.Nxf7 Rxh6 35.Nxh6 c5 36.bxc5 Kc6 37.Nf5 Re8 38.Bd6 Rd8 39.Nd4+ 1-0


2. Players

a) Strong grandmasters who used this line as White:
Fritz 8   Result=6/10 2003-2008 Elo-Ø: 3076 games: 10
Shredder 8   Result=3/3 2006 Elo-Ø: 3376 games: 3
Crafty 19.19   Result=2.5/3 2006 Elo-Ø: 3025 games: 3
Yace Paderborn   Result=2.5/3 2006 Elo-Ø: 3126 games: 3
Hiarcs 8   Result=2.5/6 2002-2006 Elo-Ø: 3076 games: 6
Yace   Result=0/1 2001 Elo-Ø: 2878 games: 1

b) Other notable players:
perrypawnpusher    Result=210/253 2004-2012 
Petasluk    Result=152.5/243 2004-2012 
UNPREDICTABLE    Result=127/247 2007-2011 
HIARCS 11.1 UCI    Result=100/100 2008  
mrjoker    Result=84.5/136 2000-2010 
MrJoker    Result=84/108 2011-2012 
DragonTail    Result=83.5/345 2006-2011
stretto    Result=82.5/187 2006-2011 


3. Statistics

White scores badly (44%).
White performs Elo 1350 against an opposition of Elo 1393 (-43).
Black performs Elo 1392 against an opposition of Elo 1349 (+43).
White wins: 3838 (=42%), Draws: 265 (=3%), Black wins: 4944 (=55%)
The drawing quote is very low. (0% quick draws)

White wins are short (31).
Black wins are short (30).
Draws are long (50).


Thursday, December 1, 2011

Chessville.com is Back!


My Home-Away-from-Home on the Internet has been, for many years, Chessville.com.

(By comparison, this blog has always been much more of a "man cave".)

Although Chessville has been inactive for almost a year, new material began showing up last week, under the editorship of Ken Surratt, brother of the previous Chessville guru, David Surratt.

I visit Chessbase and Chess History daily, and ChessCafe weekly. How nice to add Chessville back into the rotation!

Monday, September 19, 2011

Zero is Still Zero

Readers are no doubt familiar with the ChessBase.com web site, a place where you can not only check out the latest chess news but also shop for the latest chess books, software, DVDs, etc. As they recently pointed out, however,

With literally hundreds of DVDs available, ranging from openings to games collections, it could be daunting to look through the long lists of product descriptions in the hopes of finding something useful. With the new Product Finder, all you need to do is set up a position, and not only will all opening DVDs covering it be shown, but even games collections as well. Here is a new way to search.
When you specialize in an offbeat opening like the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), this kind of innovation holds the promise of quickly cutting through the wheat and getting right down to the chaff!

I went right to the ChessBase Shop, fired up the "Product Finder With Board", entered the opening moves to the Jerome Gambit, crossed my fingers, and hit "Search".

The result?
Showing 0 Results
I guess I should have expected that. (On the other hand, leaving off White's audacious 4th move allows the "Product Finder With Board" to identify 35 items.)

Friday, May 20, 2011

Blog's Best Friend

In preparing games for presentation on this blog I use ChessBase to extract games from The Database; and Rybka 3, Houdini 1.2 and Fritz 10 (occasionally Fritz 8) to provide insight and guidance into what was happening in the play. 

Most of the time the computers are faithful friends. Sometimes they seem to mislead.

perrypawnpusher - bnxr
blitz, FICS, 2011

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


The Jerome Gambit.

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


7.Qd5+ Ke8 8.Qxc5 d6 9.Qe3 N8e7


I've faced this position a half-dozen times without surrendering a half-point.

Black wants his King's Knight developed in a way that does not impede his King's Rook, which in turn will come into place as he castles-by-hand.

From White's point of view the development at e7 puts less pressure on the "Jerome pawns" in the center, but creates an additional possibility when considering returning a piece for two pawns when one of the White foot soldiers advances to f5.

10.f4 Rf8 11.0-0 Kf7

To castle-by-hand, as noted above. My response: " 'Jerome pawns', advance!"

By the way, a "position search" here in The Database is confounding,  making it of less use, a similar situation to the one I mentioned in Monday's "Checking Back" post. In this line of play, I like the intermediate "nudge" 7.Qd5+, instead of the immediate capture of the Bishop with 7.Qxc5, so my game has reached this position along with four games by Jerome Gambit Gemeinde member Petasluk and an earlier game, erik - jimi, blitz, FICS, 2001; but here it is White's move, while in their games it is Black's.

12.f5 Ne5 13.d4 Nc4 14.Qd3 d5


15.Nc3 h6

Black wants to keep White's Bishop off of g5, but a better move was to pull back his advanced Knight to d6.

16.g4

Supporting the advanced f-pawn, but this is too stereotyped.

As Rybka 3 instructed me after the game, White could already grab a pawn with 16.Nxd5; and after 16...b5 he could move in on Black's King with 17.Nxe7 Qxe7 18.f6 (a clearance sacrifice) 18...gxf6 19.e5 f5 20.Qf3 (a nice move, as the loose Rook at a8 gives the Queen the tempo she needs to continue on to the Kingside) 20...Bd7 21.Qh5+ Kg8 22.Bxh6 Qh7 23.Qg5+ Kf7 24.Bxf8 Rxf8 when White would have a Rook and three pawns for two pieces, and the advantage.

That's a nice line of play, something some readers may have seen. One reason that I turn the post mortem over to the silicon brains is so that I can see what I should have seen.

Certainly I should have seen the gain of the pawn at d5, but I'm still working on having the feel for the kind of sacrifice that 18.f6 would be. The Queen transfer via f3 was nice, but I'm not ready to say that I would have played 17.Nxe7 because I saw the coming win of the exchange with 24.Bxf8.

16...Kg8 17.e5

Instead, 17.Nxd5 was still the right move for White, as he can answer 17...Nxd5 with 18.Qxc4 threatening a discovered check.. After 17...Nd6 18.Nf4, according to Rybka 3 White's advanced "Jerome pawns" balance out the missing piece.

17...b6

Black's plan is to post the Bishop on the a6-f1 diagonal where the White Queen and Rook are currently residing.

Looking at the diagram, I get the feeling that White needs a dose of developed pieces, but Rybka and Fritz give the first player the edge.

18.b3 Ba6 19.Qg3

Slow. White probably could have gone all-out with 19.f6 or played it safe with 19.Rf2.

19...Na5 20.Ba3


Two can play at this game, was my thought, but certainly  20.Rf2 was more to the point.

20...Bxf1 21.Rxf1 Rf7


Black is now up a Rook for two pawns. Frankly, I was amazed that I wasn't having an anxiety attack. It is true that I didn't mind giving up the exchange on f1; after all, look at Black's parked Queen Rook and his offside Queen's Knight. Also, the "Jerome pawns" look scary, but are they a Rook's worth of "scary"?

Rybka and Fritz seem to think they are, and they rate the position about equal. It is easy to follow their suggested line of  play, 22.e6 Rf8 23.Bxe7 Qxe7 24.Nxd5, gaining a pawn, but the question remains: Where does White's counter come from? Especially since what is recommended as best for Black is now the exchange of Queens, 24...Qd6 25.Qxd6 cxd6




analysis diagram








Can anyone spot the hidden Rook?

Back to the game...

I decided that I needed to attack Black's King before he got his forces together. As we have seen, this is not the recommended direction. 

22.f6 Nec6 23.Qe3 gxf6 24.Qxh6



24...fxe5

Occasionally it is important for me to remind myself that if a position is complicated for me, it is usually complicated for my opponent, too.

Here, according to Rybka, my opponent overlooks his chance to transition into a better endgame where he has a piece for two pawns... 24...Rh7 25.Qd2 fxe5 26.dxe5 Qh4 27.Qg2 Rg7 28.Nxd5 Rxg4 29.Nf6+ Qxf6 30.Qxg4+ Qg7 31.Qxg7+ Kxg7 32.e6 Re8 33.Rf7+ Kg6 34.Rxc7 Rxe6




analysis diagram








Instead, Black's move is an error.

25.Rxf7 Kxf7


26.Qh5+

How annoying it was to see after the game that if I had played 26.Qh7+  I had a win: 26...Kf6 27.dxe5+ Nxe5 28.Be7+ Qxe7 29.Nxd5+. Wow.


26...Kg8

It seems a bit of hard luck that my opponent let me off of the hook here, when 26...Kg7 would give him a better game; or so the computers say.

Now I saw the draw and went for it. After all... I was a Rook down.

27.Qg6+ Kh8 28.Qh6+ Kg8 29.Qg6+ Kh8 30.Qh6+ Kg8 31.Qg6+ Kh8 32.Qh6+ Game drawn by repetition

Tuesday, May 17, 2011

Checking Back

When I reported on the game AreWeThereYet - metheny, blitz, FICS, 2009 (0-1, 28) in "Watch that last step...", taking a look at the nameless opening line 1.e4 e5 2.Nf3 Nc6 3.Bc4 Na5  (which immediately got a Jerome Gambit-style twist, 4.Bxf7+ Kxf7 5.Nxe5+) I neglected to mention that the two played again four days later, with the outcome quickly reversed: AreWeThereYet - metheny, blitz, FICS, 20095...Ke8 6.Qh5+ Ke7 7.Qf7+ Kd6 8.d4 Qe7 9.Qd5 checkmate.

Time to check back and see how the opening is faring.

soulman  - Tadziu
standard, FICS, 2011

1.e4 e5 2.Bc4 Nc6 3.Nf3 Na5



4.Bxf7+

This move is not necessary; White can play the stronger (but much less fun) 4.Nxe5 instead.

4...Kxf7 5.Nxe5+ Ke8 6.Qh5+ Ke7
 
 
If you do a position search in The Database (using ChessBase1.e4 e5 2.Nf3 Nc6 3.Bc4 Nh5 4.Bxf7+ Kxf7 5.Nxe5+ Ke7 6.Qh5 and 5...Ke8 6.Qh5+ Ke7 continuations note that in the first case it is Black to move, in the second case, White.

7.Qf7+

Do a position search now, though, and the data return is clear, at least from one perspective: 55 games, White scores 71%.

7...Kd6 8.Qd5+

This is a good move, and in the majority of games White played it.

Only eleven games (1/5) had the best move for White, 8.d4. As only three games had Black playing the strongest reply to that move, 8...Qf6 (and Black won two of them), it is best to go over the reason that White should remember 8.d4.

After 8.d4 White threatens the devastating 9.Bf4, and Black's "best" is 9...Qf6, which falls to the inventive (and as yet unplayed) two-piece sacrifice, 10.Nc4+ Nxc4 11.Bf4+ Qxf4 12.Qxf4+ winning Black's Queen. (White can even interpolate 12.e5+ and wind up winning another piece.)

If Black defends against 8.d4 with 8...Nh6, instead, he immediately regrets that his Knight cannot go to f6 after 9.Qd5+ Ke7 10.Bg5+, winning the Queen. No better is 8...Ne7, as after 9.Qh5 White threatens Ne5-f7+, winning the Black Queen and Black wishes the Knight were on h6...

8...Ke7 9.d4

Clearly soulman has everything under control.

9...Nc6
 
Saving the wayward Knight that got this whole adventure started.
 
10.Bg5+

But losing the King after 10...Nf6 11.Qf7+ Kd6 12.Nc4 checkmate.

Black resigned

Sunday, January 30, 2011

Nudge 2.0

The other day Bill Wall told me that there were 5 Jerome Gambit games (out of over 4.8 million) in the new Big Database 2011 from ChessBase. It turns out that 2 of them were unknown to me. Here's one.

Kitzler,G - Schloeffel,C
Karl Mala Memorial FICS, 2009

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


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


7.Qxc5

Instead of this direct capture, I prefer the "nudge" 7.Qd5+ which usually pushes Black's King to the back rank, where it can interfere with the development of his King Rook. It costs me an extra tempo, but Black returns it with a later ...Kf7 or ...Ke7.

7...d6 8.Qd5+

I suppose that this move could be a "nudge 2.0" as it either moves Black's King, or the Queen's check is blocked by Black's light-squared Bishop, which in turn makes the b7 pawn available for capture.

How good is the move? Well, there are 127 games with it in The Database, and White scores only 37%. On the other hand, the move has been played by Jerome Gambit stalwarts blackburne, AAlekhine and Bill Wall, and was chosen by computers Crafty 19.19 and Yace Paderborn in their games against RevvedUp.

8...Be6 9.Qxb7

Black willingly gives up the pawn and White happily takes it. At least one of them apparently remembers what happens to one who takes the Queen's Knight pawn...

As in many Jerome Gambit positions, Black is "objectively" better, but if White can consolidate his position (he is behind in development and his King is not safe) then in casual or club games White's extra 3 pawns may be able to balance out Black's extra piece.

9...Nf4

Two other possibilities:

9...Nf6 10.d4 Re8 11.Nc3 Qc8 12.Qb5 Bd7 13.Qd3 Nxe4 14.0-0 Kg8 15.Bg5 Nxg5 16.Rae1 c6 17.Qc4+ d5 18.Qd3 Rxe1 19.Rxe1 Bf5 20.Qd2 Ne4 21.Nxe4 Bxe4 22.f3 Bf5 23.g4 Bxg4 24.fxg4 Qxg4+ 25.Kh1 Nh4 26.Qe2 Qxe2 27.Rxe2 Rf8 28.h3 Kf7 29.Re3 Re8 30.Rxe8 Kxe8 31.c3 Ke7 32.Kg1 Ke6 33.Kf2 Kf5 34.Kg3 g5 35.a4 h5 36.b3 Ke4 37.Kf2 Kd3 White resigned, blackburne - meliam, ChessWorld, 2004; and


9...Nh4 10.0-0 Qg5 11.Qxc7+ Ne7 12.g3 Nf3+ 13.Kh1 Qh6 14.h4 Bh3 15.Rd1 Qe6 16.Qa5 Bf1 17.Qh5+ Ng6 18.Qxf3+ Kg8 19.Rxf1 Qh3+ 20.Kg1 Ne5 21.Qb3+ d5 22.Qxd5+ Nf7 23.Qxa8+ Black resigned, Wall - CheckMe, Chess.com, 2010.


Players who return to this line also need be aware of the unplayed 9...Qg5!? Trust me, the Black Rook on a8 is poisoned. White has to try 10.g3

10.0-0

This move seems prudent, but it actually opens up Pandora's box. White had to find 10.Rg1 and hold on, as Black has both quiet and wacky responses (try 10...Bd5!?) to try to increase his advantage.

10...Bh3

Okay, take a deep breath.

Black, as is the case in many Jerome Gambit games, has missed the killing stroke 10...Qg5, as 11.g3 causes horrible weaknesses on the white squares around White's King, i.e. 11...Ne2+ and 12...Qh5.

Instead, Black has gone in for flash (taking the Bishop now leads to a quick mate), and that means White has an extra chance. He should try 11.Qb3+, hoping for something like 11...d5 12.d4 Qg5 13.Qg3 Ne2+ 14.Kh1 Nxg3+ 15.fxg3+ Qf6 16.Rxf6+ Nxf6 17.gxh3 Nxe4 when White has two pawns for the exchange and Black will have to work for a win.

After 11.Qb3+ Ke8 12.Qb5+ White should probably exchange Queens if he has the opportunity and otherwise work on his development, again hoping that his 3 extra pawns will come to his rescue.

11.e5

Opening the route to g2 for his Queen, but now his game completely collapses. It is probably time to draw the curtain on this tragedy.

11...Bxg2 12.Qb3+ Bd5 13.e6+ Kf8 14.Re1 Bxb3 15.e7+ Nxe7 16.axb3 Nf5 17.Kh1 Nh3 18.d3 Qh4 19.Rf1 Nxf2+ 20.Kg2 Re8 21.Rxf2 Qg4+ 22.Kf1 Qh3+ 23.Rg2 Qf3+ White resigned


White's undeveloped Queenside tells the tale.


graphic by Jeff Bucchino, the WizardofDraws

Thursday, May 20, 2010

The Norton - Hallock Game (Part 4)

We continue a look at the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) game Norton - Hallock, correspondence, 1877 (see "The Norton - Hallock Game" Part 1, Part 2 and Part 3), assessing the contemporary evaluations of American Chess Journal editor William Hallock and gambit originator Alonzo Wheeler Jerome; while adding a modern perspective, the insights of Rybka, and various contents of my ChessBase files...


9.Qe1 Kf7
Hallock: Very good again. Brings the KR into the field. Obviously the capture of the Knight would lose the Queen.
10.h3
Hallock: A mere waste of time. Should have played Kh1 or c3
Jerome: Note (e) says "waste of time" not so; on the contrary is much better than 10.c3, for if 10...Re8 11.d4 Bxd4 12.cd Qxd4 and the KP is lost and Black has the best position. 10.Kh1 is good and safe.
White's best move, giving up a pawn to get some breathing room for his Queen, was 10.d4, when either 10...Qxd4 or 10...Bxd4 can be answered by 11.exf6. Black will remain a pawn up, with intense piece pressure and the two Bishops, but that would be better for White than either 10.h3, as played in the game, or 10.Kh1 or 10.c3 as mentioned by Jerome (all of which still favor Black).

The line proposed by Jerome as good for Black, 10.c3 Re8 11.d4 Bxd4 12.cxd4 Qxd4 is advantageous for the second player, but 10...Qd3 would have been even more so.
10...Re8
Hallock: Sound and brilliant.
11.Kh2
Hallock: If White answer 11.hxg4 Nxg4! 12.g3 (12.Qe4 Qh4! 13.Qf3+ Kg8 14.Qh3 Bxf2+ 15.Kh1 Rxe5 wins easily) 12...Rxe5 13.Qd1 Nxf2 etc If 14.Rxf2+ (If 14.c3 Qg5) 14...Qf6.
Jerome: In note (f) there seems to me to be quite an oversight for if 13...Nxf2 14.Rxf2 and then if 14...Qf6 as suggested in the note, 15.d4 and it is Black's goose which is immediately done brown. Of course 13...Nxf2 is not best. Again I cannot see the easy win after 15...Rxe5 the attack is with White.
Clearly 10...Re8 is a good and thematic move for Black.

White's best response seems to be 11.d3, followed by Nb1-d2-f3 and possibly Bc1-f4; although Black would still have the advantage.

Hallock is correct that capturing Black's Bishop with 11.hxg4 is well-answered by 11...Nxg4. This is especially clear after the further 12.d4 Qxd4 13.Nc3 Rxe5 when Black's pieces dominate.

However, in extending his analysis Hallock leaves himself open to Jerome's retort that after 11.hxg4 Nxg4 12.g3 Rxe5 13.Qd1 Nxf2 14.Rxf2 Qf6 Black is bested by 15.d4. Black's last move is a mistake: substitute 14...Bxf2+ for 14...Qf6 and he is winning. In this line 13...Bxf2+ is better than Hallock's suggested 13...Nxf2 – supporting Jerome's assertion that the latter move was "not best" – but 13...Nxf2 is also good, just not best.

It is hard to accept Jerome's argument that after Hallock's 11.hxg4 Nxg4 12.Qe4 Qh4 13.Qf3+ Kg8 14.Qh3 Bxf2+ 15.Kh1 Rxe5 "the attack is with White."  Black's crushing threat of ...Re5-h5 forces White to exchange Queens, after which Black's development and King safety vastly overshadow White's game – over 3 pawns' worth, according to Rybka.

Hallock now wraps the game up nicely.


11...Rxe5 12.Qxe5 Bd6 13.f4 Bxe5 14.fxe5


14...Be2 15.Rf2 Qd4 16.Rxe2 Re8 17.d3 Rxe5 18.c3 Qd5 White resigned





















Thursday, April 22, 2010

Data Gathering

The early post "My Jerome Gambit Database" from June 28, 2008, mentioned that I had on hand "over 950 games" – at that time, a startlingly high number for me, especially since trips to the online databases at ChessBase and ChessLab websites turned up so few games.

Currently, the updated New Year's Database contains about 18,000 Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), Blackburne Shilling Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4 4.Bxf7+), and Semi-Italian Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 h6 4.0-0/4.Nc3/4.d3 Bc5 5.Bxf7+) games.

What a difference two years make!

Thursday, February 4, 2010

Database Alternative

On January 1, 2010 I offered Readers a PGN database of over 17,000 Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), Blackburne Shilling Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4 4.Bxf7+), and Semi-Italian Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 h6 4.0-0/4.Nc3/4.d3 Bc5 5.Bxf7+) games. 

That size database might be too large for Readers who use ChessBase Light, so I have sliced the New Year's Database "pie" into three files: two of 6,000 games apiece, and one not quite that size.

Just email me: richardfkennedy@hotmail.com and make the request if you are interested.

Wednesday, January 6, 2010

Opening Reports on the New Year's Database

Using the New Year's Database of Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), Blackburne Shilling Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4 4.Bxf7+), and Semi-Italian Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 h6 4.0-0/4.Nc3/4.d3 Bc5 5.Bxf7+) games, I enlisted ChessBase8 to run a series of Opening Reports. The results were enlightening.
Starting with 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+, the Report found 6,507 games. White "scored badly" at 44%, while Black scored 56%.

As for Black's replies, 4...Kxf7 was played in 6,124 games, when Black "scored well" with 56%, as compared to scoring "averagely" (46%) with 4...Kf8 and "badly" with 4...Ke7 (30%).

These statistics, like all statistics, should be taken with a grain of salt. Still, it is clear at this point that Black gains nothing (and White loses nothing) by avoiding the capture of the Bishop. Too, if the Opening Report considers 46% to be "average", White's 44% is not far off the mark.

Finally, the Critical Line is given as 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5 Nxe5 6.d4 Bxd4 7.Qxd4 Qe7 where White scores 33%. This is interesting, but Readers know that 6...Qh4+ is the actual critical line, even if it has scored poorly in the database.

I re-ran the Opening Report after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 and was not surprised to find that while 5.Nxe5+ was played in 2,677 games and scored "averagely" with 53%, all other White choices scored "below average" (5.c3 47%;), "badly" (5.b3 43%; 5.d4 40%; 5.0-0 36%;) or "miserably" (5.Qe2 33%; 5.d3 32%; 5.a3 31%; 5.h4 31%; 5.Nc3 27%; 5.c4 25%; 5.Ng5 23%; 5.g3 0%; 5.Ng1 0%) – with the exception of 5.b4, transposing to the Jerome Evans Gambit, where White scored "well" at 67% (in 6 games).

I re-ran the Opening Report on 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+, and noticed that White scored 74% against 5...Ke8; 67% against 5...Ke7; 53% against 5...Nxe5; 45% against 5...Kf8; and 38% against 5...Ke6.

Clearly that last move needs more analysis on behalf of White. 

In general, it still looks like White does best to stick with the Jerome Gambit "book" and that Black takes more risks when he knowingly or unknowingly plays away from "book".

graphic by Jeff Bucchino, the Wizard of Draws