Thursday, February 10, 2011

Nd5

This game is the latest in a series of my attempts to understand a move that Rybka has recommended in various post mortems. Although I still quite don't understand it, I played it – and my opponent responded as if he didn't understand it, either – and suddenly the game was over.

perrypawnpusher  - LeChinois
blitz, FICS, 2011

1.e4 e5 2.Nf3 Nc6 3.Bc4 h6


The Semi-Italian Opening.

4.0-0 Nf6 5.Nc3 Bc5 6.Bxf7+


The Semi-Italian Four Knights Jerome Gambit.

6...Kxf7 7.Nxe5+ Nxe5 8.d4


8...Bxd4 9.Qxd4 Nc6

More frequently seen is 9...d6 10.f4 Nc6, but I do not see a problem with the text.

10.Qd3

I've lost a couple of games with the alternative, 10.Qc4+, e.g.: 10...Kg6 11.f4 Re8 (11...Rf8 12.f5+ Kh7 perrypawnpusher - mjmonday, blitz, FICS, 2010 (0-1, 26)) 12.f5+ Kh7 perrypawnpusher - DeDaapse, blitz, FICS, 2010 (0-1, 19)

10...Qe7


11.f4

After the game I fed the moves to Rybka in blundercheck mode, and here (and for subsequent moves) it recommended instead 11.Nd5.

I know that Nd5 is the kind of move that you play here (at least according to Rybka, which has made that recommendation several times in past games) but I did not like what would happen with Black's Queen at e7: 11...Qxe4 12.Qxe4 Nxe4 13.Nxc7 Rb8. I was hoping for more than exchanging my e-pawn for my opponent's c-pawn. 

11...d6 12.Bd2

Again, Rybka preferred 12.Nd5 Qxe4 13.Qxe4 Nxe4 14.Nxc7 Rb8.

12...Bd7 13.Rae1

Okay, with my e-pawn protected with this move, now I'm ready for Nd5.

13...a5

Of course Rybka preferred 13...Rae8 – followed by 14.Nd5 (and 15.Bc3).

14.Nd5

Tah dah!

White also had 14.e5 dxe5 15.fxe5 Nxe5 16.Qd5+ Kg6 17.Qxe5 Qxe5 18.Rxe5 which equalized, but which took much of the dynamism out of the game. 

14...Be6

Well, that settles everything...

Rybka pointed out the essential 14...Qd8 and then suggested that White could/should draw with 15.Nxf6 Qxf6 16.Bc3 Qe7 17.e5 Be8 18.Re3 Kg8 19.Qd5+ Kh7 20.Qe3+ Kg8 21.Qd5+ etc.

15.Nxe7 Black resigned




Wednesday, February 9, 2011

Could Not Happen, Right? (Part 2)

Not too long ago I received an email from Stipe Drinovac who had noticed (from a post at Chessgames.com) that I was interested in Jerome Gambit games.  He sent me a game that he had played last year at a club event. My eyes popped.

Drinovac - NN
club game, 2010

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


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


7.f4 Qf6 8.Rf1

I found only a couple dozen games in The Database with this move (White scored 54%), but the players were impressive: Jerome Gambit Gemeinde members mrjoker, Petasluk and Gary_Seven, as well as paladins Fritz 5.32, Fritz 8, Junior 7 and Zappa 1.1.

8...Nh6 9. Nc3 d6


10.Nd5 Qd8


And, just like that, White is winning, according to Rybka, which preferred the offer to exchange Queens with 10...Qf7.

11.d4 Bxd4 12. fxe5 dxe5


13.Bg5 Qg8 14.c3 Bb6 15.Nxb6 axb6


16.Qh3+ Kd6 17.Qd3+ Kc6 18.Rf8


If Black had not realized until this point that he was doomed, this probably delivered the message.

18..Qe6 19.Rxh8 b5 20.a4 bxa4 21.Re8


Another deflecting sacrifice, offering the Rook a second time.

21.Qxe8

Drinking the poison. Declining with something like 21...Qb3 left Black down the exchange, with his King still in danger. Rybka likes 22.Bd8, putting pressure on c7 and planning to sacrifice White's Bishop there, if nessary, as a response. 

22.Qc4+ Kd6 23.O-O-O checkmate

Q.E.D.

Tuesday, February 8, 2011

Could Not Happen, Right? (Part 1)

Many readers are familiar with the game young Paul Morphy played against his uncle, Alonzo Morphy, where he gave his elder the odds of a Rook, and still checkmated him – with the last move being Castles:

Paul Morphy - Alonzo Morphy
New Orleans, 1850
Remove White's Queen Rook

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.Nxf7 Kxf7 7.Qf3+ Ke6 8.Nc3 Nd4 9.Bxd5+ Kd6 10.Qf7 Be6 11.Bxe6 Nxe6 12.Ne4+ Kd5 13.c4+ Kxe4 14.Qxe6 Qd4 15.Qg4+ Kd3 16.Qe2+ Kc2 17.d3+ Kxc1 18.O-O checkmate


This is certainly a fun game to play over.

What if, instead of "Rook odds", someone gave an opponent "Jerome Gambit odds" – and also won the game with Castles as the last move?

Could not happen, right?

It did happen. I'll post the game tomorrow.

Monday, February 7, 2011

The Kind of Game


If it's true that "bad things come in threes" (see "Struggling" and "Tactical Sloppiness") that would be a good explanation for the following win that I recently scored. It's the kind of game you might as well have if your opponent is going to have difficulty with the clock...



blitz, FICS, 2011

1.e4 e5 2.Nf3 Nc6 3.Bc4 h6


The Semi-Italian Opening.

4.0-0 Nf6 5.Nc3 Bc5 6.Bxf7+


The Semi-Italian Four Knights Jerome Gambit.

6...Kxf7 7.Nxe5+ Nxe5 8.d4 Bxd4 9.Qxd4 d6 10.f4 Nc6 11.Qd3 Re8 12.Bd2 Kg8 13.Rae1 Bg4


A rarely-played move (according to The Database) in a standard position. Rybka and Fritz8 almost always suggest Nc3-d5 now for White, but I was lured by the opportunity to start my Kingside pawns moving "for free". Instead, I chased the Black Bishop back to a better square.

14.h3 Be6 15.g4

Like I said in the note to move 13, better was 15.Nd5. The reason has little to do with the weakening of White's pawn structure, and more to to with dropping the c-pawn.

15...Nb4 16.Qg3 Nxc2 17.Re2


This should cost the exchange after 17...Bc4. 

17...Nd4 18.Rg2 Qd7 19.f5


I figured at this point that whatever chances I had to save the game (slim & none, actually) would lie in a Kingside attack.

19...Bc4 20.Re1 Nc2

Much better was 20...Qc6.

21.Rc1 Nd4 22.g5 hxg5 23.Bxg5 Rf8


Another lucky break for me: Black believes that my attack is worth worrying about. He should have simply smashed my center with 23...Nxe4.

24.Bxf6 Rxf6 25.Rd1

Missing a key tactical point that would have almost equalized the game: after 25.b3 Black's Bishop has nowhere safe to go (even 25...Ba6 allows the strong attacking 26.Nd5 with threats to c7) so after 25...d5 26.Nxd5 Bxd5 27.Rxc7 Nf3+ 28.Kh1 Rc6 29.Rxd7 Rc1+ 30.Rg1 Rxg1+ 31.Qxg1 Nxg1 32.exd5 Ne2 Black's advantage is much smaller than in the game.

25...c5 26.e5

There is nothing but bluff in this.

26...Rxf5 27.exd6 Rf6 28.Ne4


Simply hoping to keep Black busy enough until his flag falls.

28...Rh6

Unfortunately this reduces his chances to a draw, while 28...Nf3+ would have killed. 

29.Nxc5 Qxd6

Dropping the whole point, which seems unfair. 

After the game Rybka suggested instead 29...Ne2+ 30.Rxe2 Qf5 with a possible continuation being 31.Re5 Qc2 32.Rde1 Rf8 33.Ne4 Qxb2 34.Re7 Bf7 35.d7 Rg6 36.Ng5 Qd4+ 37.R1e3 Qd1+ 38.Re1 Qd4+ drawing. Not easy to see with a few seconds left.

30.Qxg7 checkmate

perrypawnpusher - tharadili

Sunday, February 6, 2011

Tactical Sloppiness

Here we have a second straight loss for me, the kind better blamed on my tactical sloppiness than on the Jerome Gambit itself, which certainly gave me chances for success.


perrypawnpusher  - wbrandl
blitz, FICS, 2011

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


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


7.Qd5+ Kf6 8.Qxc5

What difference, if any, does it make that Black's King is on f6?

Before I played 8.Qxc5, I toyed with playing 8.d4, with the threat of 9.B (or Q) g5+ winning Black's Queen. I had obviously forgotten that I had played the move successfully several years ago in perrypawnpusher - whitepandora, blitz, FICS, 2008, (1-0, 41). For the same reason, 8.f4 was also playable, and also better than the text.

8...d6 9.Qe3 N8e7 10.d4 Kf7


Black tried the center/Queenside attack 10...c5 11.dxc5 Qa5+ 12.Nc3 Qxc5 in perrypawnpusher - useche, blitz, FICS, 2010 (1-0, 22)

11.0-0 Rf8 12.f4 Kg8 13.f5 Nh8 14.Nc3 c6


Some of White's compensation for his sacrificed piece is Black's crowded position.

15.Qg3 d5 16.f6 Neg6 17.fxg7 Kxg7 18.Be3


A bit better was 18.Bg5

18...Rxf1+ 19.Rxf1 Nf7 20.Qf3 Ng5 21.Bxg5 Qxg5 22.Qf7+ Kh6 23.exd5 cxd5


After the game Rybka concluded that White had equalized.

24.Nxd5 Bg4 25.Nf4

The Knight needed to go to f6 with the possibility of continuing on to g8. The position would be complicated, but White at worst can expect to draw by repetition.

My move was made with little analysis other than thinking "this looks like a good square" and it allowed Black to bring his Rook into play, winning quickly.

25...Rf8

26.Qxb7 Rxf4 27.Qxa7 Rxf1+ 28.Kxf1 Qf4+ White resigned

Saturday, February 5, 2011

Improve Your Chess

Readers who have checked the Links on this site (lower right side) have no doubt visited "Bruno's Chess Problem of the Day". The site now has a link to this one, pleasantly placed in the "Improve Your Chess" section. But, of course!

Friday, February 4, 2011

Struggling

I have seen games where a player gives odds of pawn, Knight, Rook or Queen and then wins brilliantly. I do not know how many games where the odds-acceptor's wins have been published. Here is one I gave "Jerome Gambit odds" and lost.


 perrypawnpusher  - pblond
blitz, FICS, 2011

1.e4 e5 2.Nf3 Nc6 3.Bc4 h6


The Semi-Italian Opening.

4.0-0 Bc5 5.Bxf7+


The Semi-Italian Jerome Gambit.

Of course, White does not have to sacrifice. He can keep a small edge with 5.c3 d6 6.d4 exd4 7.cxd4 Bb6 8.Nc3 Nf6 9.h3 0-0.

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


I have played this position a number of times. The deeper I get into the game, the more it feels like I am walking through a junkyard, and I keep expecting to see myself amongst the wrecks.

8.Qf5+ Kd6 9.d4 Bxd4

The capture seems best, but has not always been played:

9...Qf6 10.dxe5+ Qxe5 11.Rd1+ (11.Bf4 Black resigned, perrypawnpusher - joejox, FICS 2009) 11...Bd4 12.Qf8+ Ke6 13.Qe8+ Kf6 14.Qf8+ Ke6 15.Qe8+ Kf6 draw, perrypawnpusher - Joyus, blitz, FICS, 2007 ;

9...Ne7 10.Qxe5+ Kc6 11.Qxc5 checkmate, perrypawnpusher - GabrielH, blitz, FICS, 2010 & perrypawnpusher - StockholmMoskva, blitz, FICS, 2010.

10.Rd1 c5


A reasonable move, but not actually necessary, as my opponent showed in perrypawnpusher - richardachatz, blitz, FICS, 2010 (1/2-1/2, 71) by playing 10...Ke7. Remember, Black is two pieces up. In that game I was lucky to swindle my way to a draw.

Also good for Black is 10...Qf6 11.Rxd4+ Ke7.

11.c3 Ne7

12.Qh3

I have played this move successfully before, but I think that 12.Qh5 as in perrypawnpusher - Lakritzl, blitz, FICS, 2009 (1-0, 20) and perrypawnpusher - tuffmom, blitz, FICS, 2010 (1-0, 26) or 12.Qf4 as in perrypawnpusher - Xasquete, blitz, FICS, 2010 (1-0, 46) might be better.

In truth, all still leave White struggling for even equality.

12...Kc7

Stepping out of the pin, although also good for Black was 12...N7g6 as in perrypawnpusher - Repunante, blitz, FICS, 2010 (1-0, 17). [Hmmm... doesn't look like I've posted this game here yet - RK]

13.cxd4 cxd4

Or 13...d6 14.Qc3 Nd7 15.dxc5 Nxc5 16.Bf4 b6 17.b4 Kc6 Black resigned, perrypawnpusher - tuffmom, blitz, FICS, 2010.

14.Rxd4 d6

perrypawnpusher - Jantra, blitz, FICS, 2010 continued with 14...N7c6 (1-0, 26) Black probably should have played 14...Kb8 first.

15.Qc3+ N7c6 16.Bf4


After the game Rybka recommended 16.f4, giving Black an edge after 16...Nf7 17.Be3 g5

16...Qf6

Black's defense is now solidly in place. He is even threatening to win the exchange after 17.Bg3 Nf3+ 18.gxf3 Qxd4.

17.Bxe5 Qxe5 18.Rc4 Be6


Black is ready to finish up.

19.Qxe5 dxe5 20.Rc1 Rac8 21.b4


Hope springs eternal, but Black is even able to castle-by-hand on the Queenside. White has nothing for his sacrificed piece (the extra pawn is meaningless).

21...Kb8 22.Nd2 Nd4 23.a4 Ne2+ White resigned


Whew! This was a very good game by pblond, and it certainly shows what a struggle the Jerome Gambit can sometimes deliver – for White.