Recently Bill Wall sent me 16 of his Jerome Gambit games that were Human + Computer vs Computer encounters. Such teamwork is sometimes referred to as advanced chess, or cyborg chess, or centaur chess.
Over the years, I have posted games from Human vs Computer matches (including the legendary 1993 Fisher-Kirshner - Knight Stalker battles, and the rolling 2006 RevvedUp - Fritz 8 - Crafty 19.19 - Hiarcs 8 - Shredder 8 - Yace Paderborn mayhem) as well as many Computer vs Computer games, but I think this is the first centaur chess I have presented.
The results are interesting - even if it is difficult to assign the relative impact that the human had on the play. Also, the time controls, which affect the strength of computer programs, are not known.
Over all, White scored 4 - 9 - 3 (34%), which would be unimpressive for a normal opening under normal circumstances, but which seems - as with all Jerome Gambit matches - a bit "high" for a many-times-refuted opening.
A little more insight is available by breaking the games down into 4-game matches.
Crafty vs Stockfish + Wall, for example, yielded 2 wins for Black when played by the team; and, likewise, 2 wins for White when played by the team. With all due respect to Dr. Robert Hyatt's computer engine, it appears it could have been simply outplayed by its stronger computer opponent. Who played what color did not seem to matter.
On the other hand, the Komodo 5 vs Rybka + Wall match, which ended with a score of 2 - 2 - 0, was composed of 4 wins by Black. Neither engine, it appears, was able to ovecome the "handicap" of playing the Jerome Gambit.
The Hiarcs 9 vs Critter + Wall match seemed a reflection of the comparative strengths of the computer programs, as Hiarcs 9 lost 2 games as White, and could only manage a draw as Black.
Interesting, also, was the Fritz 12 vs Houdini + Wall match. The team was 1 - 0 - 1 as White, and 1 - 0 - 1 as Black, suggesting that Houdini was the brighter computer program.
Looking at a couple of lines of play, 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.d4 scored 2 - 5 - 1, while 6.Qh5+ scored 2 - 4 - 2, not much of a difference.
I will be sharing some of the games, taking a look at what "theoretical" enlightenment they bring.
Chessfriend Vlasta Fejfar of the Czech Republic has faced the "annoying defense" to the Jerome Gambit a number of times. In the following game, his most recent, he comes away with the whole point.
Vlastous - Idalgit
Internet, 2017
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+
4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.f4 d6
This is also called the "silicon defense" because it is the choice of many computer chess programs. Black returns a piece and takes a lot of the action out of the position.
8.fxe5 dxe5 9.Qh3+ Kf7
The text is about equal to 9...Ke7 which was seen in Fejfar,V -Goc,P, 2015 (1/2 - 1/2, 70), Fejfar,V - Chvojka, correspondence, 2016 (0-1, 32) and Vlastous - irinat, Chessmaniac, 2016 (0-1, 38).
10.Qh5+ Ke6 11.Qe2
Stockfish 8 gives the practical suggestion 11.Qh3+ hoping for a draw by repetition.
11...Qd6
Instead, 11...Ke7 was successful for Black in Wall,B - Alfil engine, Palm Bay, FL 2015 (0-1, 23); while 11...Nf6 was seen in Shredder 8 - RevvedUp, blitz 2 12, 2006 (1-0, 25) and RevvedUp - Yace Paderborn, blitz2 12, 2006 (0-1, 14).
12.Nc3
c6 13.Na4 Nf6
A tactical slip that drops a piece. Black may have unconsciously decided that his opponent has finished moving his Queen.
14.Qc4+ Ke7 15.Nxc5 b6 16.Nd3 a5 17.Qc3 Ke6
18.Qb3+ Black resigned
Perhaps a bit soon, but Black sees he will lose the b-pawn, and White's Queen will escape any danger, so the game may have lost its interest.
Here is another look at the 6...Qh4 defense in the Jerome Gambit, discussed in the previous blog post. Again, Bill Wall has the White pieces. This is pretty heavy going, and there is plenty to study in the notes, too. Or, you can just enjoy the main game, as, after a dozen moves, Bill decides enough is enough and goes after the enemy monarch.
Wall, Bill - IraHaru
lichess.org, 2016
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+
4...Kxf7 5.Nxe5+ Nxe5 6.d4 Qh4
7.O-O Qxe4
The text can be contrasted with 7...Ng4 8.h3 Bb6 (8...Bd6 9.e5 Bxe5 10.dxe5 Nxe5 11.Qd5+ Kf6 12.f4 Ng6 13.Nc3 d6 14.Be3 Ke7 15.Rae1 Kd8 16.Nb5 Nf6 17.Qc4 Ne8 18.Bf2 Qf6 19.Bd4 Qh4 20.Rxe8+ Kxe8 21.Nxc7+ Kf8 22.f5 Ne5 23.f6 gxf6 24.Qd5 Kg7 25.Qxd6 Rg8 26.Rxf6 Qxf6 27.Bxe5, and White won, Sorensen,S - X, Denmark, 1888) 9.hxg4 (9.Qf3+ N4f6 10.e5 Bxd4 11.exf6 Nxf6 12.c3 Bb6 13.Nd2 Rf8 14.Ne4 Qxe4 15.Qd1 d5 16.Re1 Qf5 17.Be3 Bxe3 18.Rxe3 Bd7 19.Rf3 Qe5 20.Qd2 Rae8 21.Re3 Qd6 22.Rxe8 Rxe8 23.b3 Qe5 24.Rf1 Bc6 25.Kh1 Qe2 26.Qc1 d4 27.cxd4 Qe4 28.d5 Qxd5 29.f3 Kg8 30.Rd1 Qe6 31.Qf4 Nd5 32.Qd4 Ne3 33.Rc1 Bxf3 34.Kg1 Nxg2 35.Rxc7 Qe3+ 36.Qxe3 Nxe3 37.Kf2 Bc6 38.b4 Nd5 White resigned, Sir Osis of the Liver - perrypawnpusher, JG3 thematic, ChessWorld.net 2008) 9...d6 10.f3 Be6 11.Be3 Bc4 12.Re1 Ne7 13.f4 Rhe8 14.Nd2 Ba6 15.Nf3 Qg3 16.a4 Ba5 17.c3 Kf8 18.b4 Ng6 19.f5 Nf4 20.Bxf4 Qxf4 21.Qc2 c5 22.bxa5 Qxg4 23.Rad1 cxd4 24.Rxd4 Qg3 25.Qb3 Qf4 26.Qb1 Qg3 27.e5 g6 28.Rxd6 Re7 29.f6 Ree8 30.Qb4 Bb5 31.Rd8+ Kf7 32.e6+ Kxf6 33.Qd4+ Black resigned, Wall,B - Rajiv, Chess.com, 2010.
8.dxc5 Nf6
8...Qg6 9.Nc3 Nf6 10.Nd5 Nxd5 11.Qxd5+ Qe6 12.Qe4 d5 13.cxd6 cxd6 14.Bd2 Qg6 15.Qd5+ Qe6 16.Qe4 Rf8 17.Bc3 Kg8 18.Rae1 Qg6 19.Qd5+ Be6 20.Qxb7 Nf3+ 21.Kh1 Nxe1 22.Rxe1 Rab8 23.Qe4 Qxe4 24.Rxe4 Bd5 25.Rd4 Rxf2 26.Rd1 Rbf8 27.h3 Bxg2+ 28.Kg1 Bxh3 29.Rxd6 Rxc2 30.Ra6 Rf1 checkmate, Petasluk - ElFuriozo, FICS, 2011
9.Nc3
Bill likes this move. An alternative is 9.Re1 Qf5 10.Qd4 (10.f4 Nc6 11.Be3 Re8 12.Nc3 b6 13.Nb5 Nd5 14.Qd2 a6 15.Nd4 Nxd4 16.Bxd4 Rxe1+ 17.Rxe1 bxc5 18.Bxc5 d6 19.c4 Nxf4 20.Bxd6 cxd6 21.Rf1 g5 22.g3 Qc5+ 23.Kh1 Bb7+ White resigned, Proudfoot - JLeee, FICS, 2008; 10.Nd2 Rf8 11.Nf1 Nc6 12.Be3 b6 13.Ng3 Qd5 14.Qe2 Kg8 15.c4 Qf7 16.b3 Bb7 17.a4 Rae8 18.cxb6 axb6 19.f3 Nh5 20.Qc2 Ne5 21.Bd4 Nxf3+ 22.gxf3 Nxg3 23.hxg3 Qxf3 24.Qh2 Rxe1+ 25.Rxe1 Rf5 26.Qh3 c5 27.Rf1 Qxf1+ 28.Qxf1 Rxf1+ 29.Kxf1 cxd4 30.g4 g5 31.b4 h5 White resigned, 10 0, Gambit Fruit1 Beta4bx - Deep Fritz 8, 2006) 10...Re8 11.Kh1 Qxc2 12.Na3 Nf3 13.Qxf6+ gxf6 14.Nxc2 Nxe1 15.Nxe1 Rxe1 checkmate, wolfpack123 - blackscorpion, GameKnot.com, 2009
9...Qc4
Also seen: 9...Qc6 10.Qd4 (10.Re1 d6 11.cxd6 Qxd6 [11...cxd6 12.Bg5 Bg4 13.Qd2 Bh3 14.f3 Bxg2 15.Rxe5 dxe5 16.Kxg2 h6 17.Be3 Rhd8 18.Qe2 Rac8 19.Bxa7 b6 20.Qe3 Rd7 21.Bxb6 Rb7 22.Ba5 Rxb2 23.Rc1 Qc5 24.Nd1 Rxc2+ 25.Rxc2 Qxc2+ 26.Nf2 Qxa2 27.Qxe5 Re8 28.Qb5 Re2 29.Bb6 h5 30.Bd4 Qd2 31.h3 Kg6 32.Qb6 Kh7 33.Bxf6 gxf6 34.h4 Qe1 35.Qc5 Kg7 36.f4 Ra2 37.Qc7+ Kh6 38.Qc5 Qe8 39.Kf3 Qa8+ 40.Ne4 Ra3+ 41.Kf2 Rh3 42.Qd4 Qa2+ 43.Nd2 Rh2+ 44.Kg3 Rxd2 45.Qxf6+ Kh7 46.Qf5+ Kg8 47.Qg5+ Kf8 48.Qc5+ Ke8 49.Qe5+ Kd7 50.Qb5+ Kd6 51.Qb6+ Kd5 52.Qb5+ Kd4 53.Qe5+ Kc4 54.Qe4+ Kc3 55.Qe5+ Kc2 56.Qc5+ Kd1 57.Qxh5+ Ke1 58.Qe5+ Re2 59.Qc3+ Kf1 60.Qf3+ Kg1 61.Kh3 Rh2+ White resigned, Shredder Paderborn - Junior 7, Utrecht, 2002] 12.Bf4 Nf3+ 13.Qxf3 Qb6 14.Nd5 Nxd5 15.Bxc7+ Qf6 16.Qxd5+ Be6 17.Qxb7 Rhe8 18.Bd8+ Black resigned, Wall,B - Gorodetsky,D, Chess.com, 2010; or 10.Bg5 Qxc5 11.Bxf6 gxf6 12.Ne4 Qb6 13.a4 Qxb2 14.Rb1 Qa3 15.Rb3 Qe7 16.f4 Ng6 17.Re3 Kg7 18.Rfe1 d6 19.Ng3 Qd7 20.Nh5+ Kh6 21.Nxf6 Qd8 22.Qh5+ Kg7 23.Ne8+ Rxe8 24.Rxe8 Qf6 25.f5 Ne5 26.Re3 Bxf5 27.Rg3+ Ng6 28.Rxa8 Qd4+ 29.Kf1 Qf4+ 30.Ke1 Bxc2 31.Qd5 c6 32.Qg8+ Kh6 33.Rh3+ Kg5 34.Rg3+ Kh6 35.Rh3+ Kg5 36.Re8 Bf5 37.Rg3+ Bg4 38.Ree3 Kh6 39.h3 Bh5 40.Qb8 Qb4+ 41.Kf1 a5 42.Qd8 Qf4+ 43.Kg1 d5 44.Kh2 Bd1 45.Re6 Kg7 46.Re7+ Kh6 47.Rxb7 Bc2 48.Qg8 Nh4 49.Rxh7+ Bxh7 50.Qg7+ Kh5 51.Qxh7+ Qh6 52.Qe7 Qg6 53.Qe2+ Kh6 54.Qe3+ Kh5 55.Qe2+ Kh6 56.Qe3+ Kh5 57.Rxg6 Kxg6 58.Qg3+ Kf5 59.Qxh4 Ke5 60.Qe7+ Kf5 61.g4+ Kg6 62.Qe6+ Kg7 63.g5 c5 64.Qf6+ Kh7 65.Qf7+ Kh8 66.g6 d4 67.Qf8 checkmate, Deep Shredder 10 UCI-HIARCS 11.1 UCI, jeromegambit, 2008) 10...Ng6 (10...Re8 11.f4 Ng6 12.f5 Ne5 13.Bf4 d6 14.cxd6 cxd6 15.Bg5 Qc5 16.Qxc5 dxc5 17.Nb5 Re7 18.Rae1 a6 19.Nd6+ Kf8 20.Bf4 Nc6 21.Nxc8 Rxe1 22.Bd6+ Kf7 23.Rxe1 Rxc8 24.Bxc5 Re8 25.Rxe8 Nxe8 26.Kf2 Kf6 27.g4 Ne5 28.Kg3 Nf7 29.Kf4 Ned6 30.Bd4+ Ke7 31.Bxg7 Nc4 32.g5 Nfd6 33.g6 hxg6 34.fxg6 Ne8 35.Bc3 Ncd6 36.h4 Kf8 37.h5 Ng7 38.Kg5 Ne4+ 39.Kh6 Nxc3 40.bxc3 Black resigned, iconsisonline - IgorBohar, FICS, 2010) 11.f3 Re8 12.Be3 b6 13.b4 bxc5 14.bxc5 Nf8 15.a4 Ne6 16.Qc4 d6 17.Rfd1 dxc5 18.Bg5 Black forfeited by disconnection, Wall,B - felineMMXI, blitz FICS, 2011; and
9...Qb4 10.Be3 d6 11.Bd4 Re8 12.a3 Qc4 13.cxd6 cxd6 14.f4 Nc6 15.Bxf6 Qc5+ 16.Rf2 Black resigned, GazzaT - Yigor, Chess.com, 2011.
10.Be3
An improvement over 10.Re1 Qxc5 11.Be3 Qc6 12.Bxa7 d6 13.Bd4 Re8 14.Bxe5 Rxe5 15.Rxe5 dxe5 16.Qe2 a5 17.Re1 b6 18.Qd3 Bb7 19.Qg3 Nh5 20.Qg5 Nf4 21.f3 Qc5+ 22.Kh1 Qf2 23.Rd1 Bc8 24.Rc1 h6 25.Qg3 Qd2 26.Rf1 Qxc2 27.Qf2 Qxf2 28.Rxf2 Nd5 29.Nxd5 Rxd5 30.Kg1 Rd1+ 31.Rf1 Rxf1+ 32.Kxf1 g5 33.a3 Ke6 34.Ke2 e4 35.fxe4 Ke5 36.Kd3 Ba6+ 37.Ke3 Bb5 38.h3 Bc6 39.g3 h5 40.h4 gxh4 41.gxh4 Bxe4 42.b3 Bc2 43.b4 Ba4 44.Kf3 Kf5 45.Kg3 Bc6 46.Kf2 Kg4 White resigned, Deep Sjeng 1.5 -Junior 7, The Jeroen Experience, 2003.
10...b6
Or 10...Re8 11.Bd4 d6 12.b3 Qa6 13.cxd6 Qxd6 14.Nb5 Qc6 15.Nxa7 Rxa7 16.Bxa7 b6 17.Qd4 Ba6 18.c4 Nf3+ 19.gxf3 Qxf3 20.Qd1 Re2 21.Qd8 Qg4+ 22.Kh1 Bb7+ White resigned, Wall,B - Guest6296711, PlayChess.com, 2014.
Or 10...Rd8 11.Qd2 Qb4 12.b3 c6 13.a3 Qg4 14.Rae1 d5 15.Kh1 Bf5 16.Bf4 Ng6 17.Bd6 Ne4 18.Nxe4 Black forfeited on time, Bholashankar - HellDenied, FICS, 2014.
11.Bd4 Nc6 12.Bxf6 gxf6 13.Qh5+
It is time for White to start putting the pressure on.
Curiously, Stockfish 8 prefers 13.Nd5 and recommends that Black sacrifice the exchange to keep an edge in the game: 13...Rg8!? 14.Nxc7 Ne5 15.Nxa8 Bb7 16.f3 Qxc5+ 17.Kh1 Bxa8.
Going after the King makes more sense to me.
13...Ke7
Now it's time for the Knight to step in.
14.Nd5+ Kd8 15.cxb6 axb6 16 Qf7 Qd4
Centralizing the Queen, stepping out of the possible exposed attacks by White's Queen (after the Knight moves), and protecting the f6 pawn. Alas, it leads to disaster.
17.Rad1 Qxb2 18.Rfe1 Ne5 19.Qe7 checkmate
I have been sharing games (starting with "Irrational") where Bill Wall has given various chess-playing computer programs "Jerome Gambit odds" - and won.
There were some losses, however.
Curiously, while I have been wordy and full of "insight" in presenting Bill's wins, I am at a loss for many words concerning the following game. As the "Talking Fritz" program might have said, "Q.E.D."
Wall, Bill - Alfil engine
Palm Bay, FL, 2015
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+
4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.f4 d6
The computer favorite.
8.fxe5 dxe5 9.Qe2 Ke7
Alfil's move is a small improvement over 9...Nf6 which was played 10 years ago in two human vs computer games, Shredder 8 - RevvedUp, blitz 2 12, 2006 (1-0, 25) and RevvedUp - Yace Paderborn, blitz, 2 12, 2006 (0-1, 14),
10.Nc3 Nf6 11.d3 Bg4 12.Qd2 Qd4
13.Nb5 Qd7 14.b4 Bb6 15.a4 Rhf8 16.Nc3 Rad8 17.h3 Be6 18.Ba3 Qd4
19.O-O-O Nxe4 20.dxe4 Qxd2+ 21.Rxd2 Be3 White resigned
Alonzo Wheeler Jerome developed and defended his gambit in both across-the-board and correspondence games in the late 1800s and early 1900s. He even arranged to play the Jerome Gambit against readers of the Literary Digest.
In modern times, however, the Jerome is most likely to show up in internet games, often blitz; although the occasional face-to-face contest still can be found.
Recently, I received an email from Vlastimil Fejfar, of the Czech Republic, who shared three of his Jerome Gambit correspondence games - a pleasant return to the days of AWJ.
Fejfar,V - Pressl
corr Czech Republic, 2015
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+
4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.f4 d6
White faces what I have called "the annoying defense", where Black calmly gives back a piece and avoids any risky misadventures, remaining up a piece for a pawn.
The idea is at least as old as D'Aumiller, A.D. - A.P., Livorno, 1878 (1-0, 19). It is the choice of many computer programs in games in The Database, including Fritz, Hiarcs, Junior, Rybka, Shredder and Spike; so I have also referred to it as "the silicon defense".
Also, 7...d6 is the move recommended by many authorities, including IM Gary Lane in his The Greatest Ever Chess Tricks and Traps.
Vlasta proceeds calmly against it.
8.fxe5 dxe5 9.Qh3+ Kd6 10.Qd3+ Ke7 11.Qg3 Ke6 12.Qb3+ Ke7 13.Qg3 Ke6 14.Qb3+ Ke7 15.Qg3
Drawn
It is not clear who came out "ahead" in this encounter, Black, who was able to split the point, or White, who was able to play a "refuted" opening and not lose.
I am sympathetic. The second round of the Chess.com Italian Game Tournament has concluded for me, again (like in the first round) without being able to contest a single Jerome Gambit, which my opponents dodged. With White I scored two wins (one on time), four draws and no losses. Did more than half of my opponents "succeed" in "winning half a point" against me, or did they miss out on strolling to victory?
[This is blog post number 2,150, for those who might wonder. - Rick]
Immediately after blundering on move 11, I thought about resigning; but I decided to hold on for a move... then another... then another. Eventually, I held on for the win.
Blitz games can be very strange, and those featuring the Jerome Gambit even more so. Some of the positions in the following game might make up for the questionable play of both me and my opponent.
perrypawnpusher -Toscolano
blitz, FICS, 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 Qh4
Surprisingly a TN according to The Database.
Of note, however, is that after 8...d6 9.Qe3 a successful computer choice was 9...Qh4 in RevvedUp - Yace Paderborn, 2 12 blitz, 2006. In the same competition, 7...Kf8 8.Qxc5+ d6 9.Qe3 Qh4 was seen in RevvedUp - Shredder 8, 2 12 blitz, 2006 and Shredder 8 - RevvedUp, 2 12 blitz, 2006.
9.Nc3 d6
An indication of how weird things were going to get is that after the game Houdini recommended, instead, 9...Qg4 10.Rg1 Kd8.
10.Qe3
I probably could have taken the pawn with 10.Qxc7, but it looked complicated. After the game, Houdini agreed with me: 10...Qg4 11.Nb5 Qxe4+ 12.Kf1 Qe7 13.b3 Bf5 14.Ba3 Qxc7 15.Nxc7+ Kd7 16.Nxa8 Nf6 17.Nc7 Kxc7 18.d3 and things would be about balanced between White's extra Rook plus 2 pawns vs Black's two extra Knights.
analysis diagram
10...Nf4 11.g3
A mindless move, after which I immediately thought of resigning. Of course, White needed to be brave and castle.
11...Ng2+ 12.Ke2 Bg4+
Strong, but even stronger would be 12...Qh5+.
13.f3 Qh3
Black is still better after playing the text, but it was time for 13...Nxe3 14.gxh4 Nxc2 15.Rb1 Bh5, when Black would be up a piece for a pawn.
14.Qf2 Bh5
Black appears repelled by the tactical mess too, and continues to play "safe" and "normal" moves instead of doing concrete analysis - understandable in blitz.
After the game Houdini suggested that Black wade in and keep his advantage with 14...Ne7 15.d3 Rf8 16.Bf4 Nxf4+ 17.gxf4 Rxf4 18.Qg3 Rxf3 19.Qxh3 Rxh3+ 20.Kf2 Kd7.
analysis diagram
15.d3
This is now good enough for equality, while 15.Rg1 would lead to a White advantage.
15...Nf6
This hands over the advantage - not that I was ready to take it! Black could maintain equality with 15...Ne7 16.g4 Bxg4 17.fxg4 Qxg4+ 18.Qf3 Qxf3+ 19.Kxf3 Nh4+.
16.Bg5
I was still floundering. Instead of this reasonable move White should have played 16. Rg1 with an small edge (2 pieces vs Rook) after 16...Rf8 17. Qxg2 Qxg2+ 18. Rxg2 Nxe4 19. dxe4 Bxf3+ 20. Kf1 Bxg2+ 21. Kxg2 Kd7.
analysis diagram
16...h6
Finally letting White off the hook. Instead, Black should have piled on with 16... Ng4, which wins, for example 17.fxg4 Qxg4+ 18.Kf1 (18.Kd2 Qxg5+ 19.Qf4 Nxf4; 18.Qf3 Qxf3+) 18...Rf8 19.Qxf8+ Kxf8 20.Kxg2 Qxg5.
17.Bxf6 gxf6 18.Rag1 f5 19.Qxg2 Qxg2+ 20.Rxg2 fxe4 21.dxe4 Rf8 22.Rf2 c6
The smoke has cleared, and White ("It is better to be lucky than good") is up a couple of pawns.
23.Rd1 Kd7 24.Rd3 Rae8 25.Kd2
An ending slip.
25...d5 26.exd5 cxd5 27.Rxd5+ Kc6 28.Rxh5 Rd8+ 29.Kc1 Rfe8 30. Rxh6+ Kc7 31.Re2 Rf8 32.Re7+ Kc8 33.Rhh7 Rxf3 34.Rc7+ Kb8 35.Rxb7+ Kc8 36.Rhc7 checkmate
Okay, say it with me, "Nobody ever won a game by resigning." Lesson learned.
Here we continue from our previous post, "Updating the Blackburne Defense (Part 1)", a look at the Blackburne Defense and what is new (or newer).
For earlier efforts, see also "Update: Old Dog Can Still Bite","Junk Openings", "A Closer Look (Part V)", "Update: Blackburne Defense" and "Traps and Zaps".
perrypawnpusher - lfcanales
blitz, FICS, 2014
9...Nf6 10.Qd8 Qxe4
Black's move allows White's Queen to escape and counter-attack. There are a number of alternative moves for Black, two of which bear attention.
Not 10...a6?, as in piratebopper - MiloBot, FICS, 2010, (1-0, 24).
Nor 10...a5? as in perrypawnpusher - MiloBot, blitz, FICS, 2010, (1-0, 24).
Played, if in a stumbling manner, is 10...Bd7?. The core game continued 11.Qxc7 (instead, 11.Qxa8? Nxe4? [Black should finish Blackburne-style: 11...Ng4 12.h3 Bxf2+ 13.Kh1 Qg3 14.Rxf2+ Nxf2+ 15.Kg1 Nxh3+ 16.Kh1 Nf4 17.Qf8+ Kxf8 18.d3 Qxg2#] 12.d4 Bxd4 13.Be3 Bxb2 14.Qxb7 Bxa1 15.Qxc7 Nf6 16.Qxd6 Kg7 17.Qc5 Ne4 18.Bd4+ Bxd4 19.Qxd4+ Kh6 20.f3 Black resigned, UNPREDICTABLE - choron, FICS, 2009) 11...Bb6? (instead, 11...Rc8 12.Qxb7 Ke7 is "gloriously obscure" according to Dr. Andrew Walker, University of Nottingham, personal communication, 2001. Probably 13.Qb3 with the idea of Qg3 is White's answer - not 13.Nc3? Ng4 when Black mates) 12.g3?! (12.Qxd6) 12...Qh3 13.Qxd6? Bc6 14.g4 Qxg4+ White resigned, Harris,S - Quayle,E, Los Angeles, CA, 1944.
Certainly solid, and Rybka's recommendation, is 10...Bb6. White should spring his Queen with 11.e5 dxe5 12.Qd3. The earliest reference that I have seen to this line is from The Art of the Checkmate by Renaud and Kahn (1953), which says White has the advantage. This proved true in Wall,B - Foo,N, Palm Bay, FL, 2010 (1-0, 33).
The most exciting move in the position is Chandler's 10...Bh3!?, when White has to temporarily forego the Rook at a8 and focus on checking Black: 11.Qxc7+ (11.g3? Qxe4 12.Qxc7+ Kf8 White resigned, Siggus -toe, FICS, 2007; 11.Qxa8? Qg4 12.Qe8+ Nxe8 13.g3 Qf3 14.Re1 Qg2#) 11...Kf8! (11...Kg8 lost in Chandler,G - Dimitrov, T/5 minute special game 2004; in Hiarcs 8 - RevvedUp, blitz 2 12, 2006 [1-0, 17]; and AsceticKingK9 - blackburne, ChessWorld JG6, 2011 [1-0, 22] ) and analysis by Geoff Chandler and, later, Dennis Monokroussos (see the two posts on his blog) show that the outcome is a draw, as it is too dangerous for either player to look for more.
11.Qxc7+
This is an improvement over 11.Nc3 Qe7 (11...Qxc2 12.Qxc7+ Nd7 13.Nd5 Qe4 14.Nc3 Qe5 15.d3 Qd4 16.Re1 Qxf2+ White resigned, ionman - GriffyJr, FICS, 2005 (0-1,16); Interested readers should check out "Ionman vs The Bots" ) 12.Qxe7+ Kxe7 as in RevvedUp - Shredder 8, blitz 2 12, 2006 (0-1, 25).
11...Kg8
radicalmove played over a dozen games against LuigiBot on FICS in 2012, testing the somewhat weaker 11...Bd7 (see "Poor, Poor Computer" for a couple of examples). The games are in The Database.
Likewise, ionman took on the computer GriffyJr a couple of times at FICS in 2005, over the somewhat weaker 11...Qe7 (the games are also in The Database). White triumphed in Shredder 8 - RevvedUp, blitz 2 12, 2006 (1-0, 28).
12.Nc3
Maybe a little better was 12.Qd8+ Kf7 13.d3 Qe5 14.Bh6 Qe8 15.Qxe8+ Nxe8.
12...Qxc2
The pawn is poison.
13.Qd8+
After the game Houdini preferred 13.d4!? Bb6 (13...Bxd4 14.Bh6 Bd7 15.Qc4+ d5 16.Qxd4) 14.Qe7 when White steals the Knight in broad daylight.
13...Kg7 14.Qe7+ Kh6 15.Qxf6 Black resigned
We continue (see the earlier "Opening Report" parts 1, 2, and 3) to uses ChessBase's Opening Report function to take a look at the games in The Database.
As a reminder, the Report gathers what lines are being played, and what lines are being used by the top players in the database. It gives a good "real life" view of the play of the Jerome Gambit, even if it does not always identify the objectively best move or line.
Opening Report
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+
Alternative: 6...Ke6
RevvedUp (2038) - Shredder 8 (3374)
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+ Kf7 10.Qh5+ g6 11.Qxe5 Bd4 12.Qf4+ Nf6 13.c3 Re8 14.cxd4 Rxe4+ 0-1
RevvedUp (2039) - Yace Paderborn (3124)
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.Qd3+ Kc6 12.Qf3 Bg4 13.Qb3 Qd4 14.Rf1 Qxe4+ 0-1
RevvedUp (2037) - Hiarcs 8 (3074)
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.Rf1 Nf6 10.Qe2 Ke7 11.d3 Bg4 12.Qd2 Qd4 13.c3 Qd6 14.b4 Bb6 15.a4 Rhf8 16.Qc2 Nxe4 17.dxe4 Rxf1+ 18.Kxf1 Rf8+ 19.Ke1 Bf2+ 20.Kf1 Bh4+ 21.Kg1 Qb6+ 22.Kh1 Rf1# 0-1
RevvedUp (2037) - Fritz 8 (3074)
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.Qh3+ Ke7 10.Qh4+ Nf6 11.d3 Kf7 12.Nc3 Ng4 13.Rf1+ Kg6 14.Qg3 Be7 15.Ke2 Bh4 16.Qf3 Be6 17.h3 Nh2 18.Qe3 Nxf1 19.Kxf1 Rf8+ 20.Ke2 Qf6 21.Nd5 Qf1+ 22.Kd2 Bxd5 23.exd5 Bg5 0-1
RevvedUp (2036) - Crafty 19.19 (3024)
blitz 2 12, 2006
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.Qf8+ Kc6 11.Qf3 Nf6 12.d3 d5 13.Nc3 dxe4 14.Nxe4 Re8 15.Bf4 Qxb2 16.Kd2 Nxe4+ 17.dxe4 Qd4+ 18.Qd3 Bb4+ 19.Ke2 Rxe4+ 20.Kf3 Rxf4+ 0-1
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
It's time again (see the earlier "Opening Report" parts 1, 2, and 3) to use ChessBase's Opening Report function to take a look at the games in The Database.
The Report gathers what lines are being played, and what lines are being used by the top players in the database. It gives a good "real life" view of the play of the Jerome Gambit, even if it does not always identify the objectively best move or line. (That would require a process called backsolving, which is not available in my ChessBase8.)
The Opening Report again also 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.
Opening Report
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5
3618 games in 'TheDatabase'
1. History
Earliest game:
Jerome,A - Shinkman,W, Iowa, 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:
Hiarcs 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.Qh3+ Ke7 10.Qg3 Kd6 11.Qd3+ Ke7 12.Qg3 Ke6 13.Qh3+ Kf7 14.Qh5+ Ke6 15.Qh3+ 1/2-1/2
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 Black:
Fritz 8 Result=6/9 2003-2006
Hiarcs 8 Result=5/6 2002-2006
Shredder 8 Result=3/3 2006
Crafty 19.19 Result=3/3 2006
Yace Paderborn Result=2.5/3 2006
YOUCANWIN Result=2/2 2009
birdcostello Result=1/1 2009
b) Other notable players:
thhZ Result=10/11 2005-2010
Knight Stalker Result=8/11 1993
pavlo Result=7.5/11 2007-2011
polite Result=7/11 2003-2010
3. Statistics
Black scores above average (47%).
Black performs Elo 1364 against an opposition of Elo 1385 (-21).
White performs Elo 1403 against an opposition of Elo 1382 (+21).
White wins: 1845 (=51%), Draws: 150 (=4%), Black wins: 1611 (=45%)
The drawing quote is very low.
White wins are shorter than average (33).
Black wins are shorter than average (33).
Draws are long (51).
4. Moves and Plans
a) 6.Qh5+
2660 games, 1874-2012,
White scores averagely (55%).
Elo-Ø: 1404, 2203 games. Performance = Elo 1416
played by: Shredder 8, 3376, 3/3; Yace Paderborn, 3126, 2.5/3; Hiarcs 8, 3076, 2.5/6; Fritz 8, 3076, 6/10; Crafty 19.19, 3025, 2.5/3
You should play: 6...Ng6
RevvedUp (2034) - Shredder 8 (3377)
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 10.0-0 Nf6 11.d3 Kf7 12.Qg5 Qxg5 13.Bxg5 Bd7 14.Nc3 Rhf8 15.h3 Nh5 16.Rae1 Nhf4 17.Kh2 h6 18.Bxf4 Nxf4 19.Ne2 Ke7 20.Nxf4 Rxf4 21.f3 Raf8 22.Rf2 Ke6 23.Ree2 h5 24.Kg1 h4 25.Kf1 Ke5 26.Kg1 Ke6 27.Kf1 Ke5 28.Kg1 Be6 29.a3 Re8 30.Kf1 Ref8 31.Ke1 Bd7 32.Kd2 c5 33.c3 Ke6 34.Ke3 Bb5 35.Kd2 a5 36.Kc2 b6 37.Kd2 Ba4 38.Kc1 b5 39.Kd2 Bb3 40.Ke3 R8f6 41.Rd2 Rf8 42.Ke2 R8f7 43.Ke3 a4 44.Rfe2 R4f6 45.Rf2 Rf4 46.Rfe2 Rf8 47.Rf2 d5 48.Rfe2 dxe4 49.dxe4 Ke7 50.Re1 Ke6 51.Rf1 Ke7 52.Re1 Ke6 53.Rf1 Ke5 54.Re1 R4f7 55.Ree2 Be6 56.Rf2 Rf4 57.Rde2 Bd7 58.Rd2 Bc6 59.Rde2 R4f7 60.Rd2 Bb7 61.Rde2 Rd7 62.Rd2 Rfd8 63.Rxd7 Rxd7 64.Rd2 Rxd2 65.Kxd2 Kf4 66.Ke2 Bc8 67.Kf2 Be6 68.Kf1 Kg3 69.Kg1 Bc4 70.Kh1 Bf1 71.Kg1 Bxg2 0-1
RevvedUp (2034) - Yace Paderborn (3127)
blitz 2 12 2 12 (2.9), 28.06.2006
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 7.Qd5+ Ke8 8.Qxc5 d6 9.Qe3 Qh4 10.0-0 Nf6 11.Nc3 Ng4 12.Qg3 Qxg3 13.hxg3 Be6 14.f4 Bf7 15.d3 Kd7 16.Bd2 Ne7 17.Rae1 Rhf8 18.a3 Rae8 19.Nd1 Bh5 20.Ne3 Kc8 21.Nxg4 Bxg4 22.Kf2 Nc6 23.Bc3 Rf7 24.Rh1 h6 25.Rh4 h5 26.Rhh1 Ne7 27.Rc1 Kb8 28.b3 Nc6 29.Bb2 g5 30.Ke3 d5 31.Rhf1 dxe4 32.dxe4 Rfe7 33.e5 Rf7 34.c4 Rd8 35.Rc2 Rfd7 36.Rff2 gxf4+ 37.gxf4 Ne7 38.Bc3 Rd3+ 39.Ke4 Bf5# 0-1
RevvedUp (2033) - Fritz 8 (3077)
blitz 2 12 2, 2006
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 7.Qxc5 Nf4 8.0-0 d6 9.Qe3 Qg5 10.g3 Nh3+ 11.Kg2 Qxe3 12.dxe3 Ng5 13.f3 Bh3+ 0-1
RevvedUp (2033) - Hiarcs 8 (3077)
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 Be6 10.f4 N6e7 11.0-0 d5 12.d3 dxe4 13.dxe4 Nf6 14.Nc3 Ng4 15.Qd3 Qxd3 16.cxd3 Rd8 17.Rd1 c5 18.h3 Nf6 19.Be3 b6 20.g4 Nc6 21.Rac1 Ke7 22.a3 Bb3 23.Rd2 Rhf8 24.Kf2 Rd7 25.e5 Nxe5 26.fxe5 Ne4+ 27.Ke2 Ng3+ 28.Ke1 Rf1# 0-1
RevvedUp (2032) - Crafty 19.19 (3027)
blitz 2 12, 2006
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 7.Qxc5 Nf6 8.Nc3 d6 9.Qe3 d5 10.Qf3 dxe4 11.Nxe4 Re8 12.d3 Bg4 13.Qe3 Rxe4 14.dxe4 Qd1# 0-1
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
Main line:
7.Qxc5 d6 8.Qe3 Nf6 46%, 1337 285 games
7.Qd5+ Ke8 8.Qxc5 d6 9.Qe3 71%, 1501 170 games
Critical line:
7.Qd5+ Ke8 8.Qxc5 d6 9.Qc3 Nf6 43 % Black.
Plans White:
..(Ne5-g6)/Qh5xc5/Qc5-e3/0-0/Nb1-c3/d2-d4/f2-f4 (17)
d2-d3/0-0 (433)
..(Ne5-g6)/Qh5xc5/Qc5-d5/ ..(Bc8-e6)/Qd5xb7/0-0 (29)
..(Ne5-g6)/Qh5-d5/Qd5xc5/Qc5-e3/0-0 (224)
0-0/f2-f4/h2-h3 (77)
Plans Black:
d7-d6/Ng8-f6/Rh8-e8/Kf7-g8/d6-d5 (49)
d7-d6/Ng8-f6/Nf6-g4/Qd8-h4 (18)
d7-d6/d6-d5/d5xe4 (113)
d7-d6/Bc8-e6 (259)
Ng8-f6/Rh8-f8 (179)
d7-d6/Ng8-e7/Rh8-f8 (69)
