Showing posts with label calexander. Show all posts
Showing posts with label calexander. Show all posts

Wednesday, June 22, 2011

Slaughter

This is another one of those interesting losses alluded to in "Three Years Running". Black's defense has an eerie "hypermodern" feel to it, but it should not have slaughtered me like it did. This is a good game to learn from.

perrypawnpusher - LuigiJerk
blitz, FICS, 2011

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


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


7.Qf5+ Kd6 8.f4 Nf7


Sometimes this Knight move both takes the steed out of danger and provides for the defense of the Black King. In this game, that is exactly what it does, but it should not have.

Yet, the position is not simple. Not even ten moves in, and the Jerome Gambit still has its secrets!

White should now take the Knight with 9.Qxf7, threatening to next to take the Bishop after Qd5+.

Black has a tricky counter-attack with 9...Nf6, covering the d5 square. This seems to give away another piece after 10.e5+ Kc6, but pay attention to White's uncastled King: it is unsafe to now grab material and open both the e- and g-files. White's best is 11.d4, instead, when 11...Bxd4 can be answered with 12.Qc4+ Bc5 12.b4. If Black tries 11...Ne4 instead, White can retreat his Queen with 12.Qb3 or try 12.c4, answering 12...d5 with 13.Qxd5+ Qxd5 14.cxd5 Kxd5 15.dxc5 Nxc5.

Black can also defend d5 with 9...c6, when 10.Qxg7 Nf6 11.Qxf6 Qxf6 12.e5+ Qxe5 13.fxe5+ Kxe5 leads, as with 9...Nf6, to an edge for White.

All of this I learned after the game, with the help of Rybka 3 and Fritz 8.

9.Qd5+ Ke7 10.Qxc5+ d6

The alternative, 10...Ke8, was seen in perrypawnpusher - calexander, blitz, FICS, 2009 (1-0, 25). (Yes, I missed taking the Knight on f7 there, too.)

11.Qe3 Be6

Here Black has an edge. His Knight on f7 slightly out-weighs my two "Jerome pawns".

12.f5 Bd7 13.d4 Nf6 14.e5 dxe5 15.dxe5 Nd5


After 15...Ng4 the game would be tactically tricky, but roughly balanced. (I don't think I'll ever criticize myself for castling "too early" in a Jerome Gambit again.)

16.Qa3+

A strange move. Simply 16.Qc5+ allows White to win the Knight at d5.

16...Ke8

While a superficial look (like the kind that I took) shows that White is on the edge of forking two pieces with his e-pawn, anything deeper shows the first player's King at great risk.

White needs to castle here.

17.e6 Qh4+ 18.Kf1

Going the wrong way, but after 18.Kd1 Bc6 19.exf7+ Kxf7 White's extra pawn would mean nothing, while his insecure King and undeveloped pieces would give Black the advantage.

Quite a lesson about King safety for the Jerome Gambiteer!

18...Bb5+ White resigned

Wednesday, December 9, 2009

When your opponent takes his time...


...it's OK for you to take time, too.

When your opponent falls behind on the clock, especially in a Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), it is tempting to blitz out moves, to keep the pressure on.

Strong moves, not necessarily fast ones, provide the most challenge, though – and this can mean some thinking time for the Gambiteer as well.

perrypawnpusher - calexander
blitz 5 12, FICS, 2009

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



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



Oh, dear. Another one of those refutations...

On the other hand, my opponent had been taking quite a bit of time over his last few moves. This was good.

7.Qf5+ Kd6 8.f4 Nf7



This move was new to me, and has been rarely played.

The strongest defense/counter-attack begins with 8...Qh4+.

9.Qd5+

After a little thought, I decided to take the Bishop, an understandable idea but not best.

Had I taken more time, I would have found 9.Qxf7, which is an interesting move. A pawn fork at e5 will follow if Black develops his Queen or Knight at f6. If Black plays for King safety with 9...c6, then Rybka suggests that 10.Qxg7 Nf6 11.Qxf6+ Qxf6 12.e5+ is possible, with an edge to White.







analysis diagram




9...Ke7 10.Qxc5+ Ke8



The only other example I have of this line continued 10...d6 11.Qd4 Nf6 12.Nc3 Re8 13.d3 Kf8 14.0-0 c5 15.Qf2 b6 16.Bd2 Bb7 17.Rae1 d5 18.e5 Nd7 19.e6 Re7 20.exf7 Rxf7 21.Re6 Nf6 22.Rfe1 d4 23.Ne4 Nxe4 24.dxe4 Bc8 25.Re5 Qd6 26.Rd5 Qh6 27.Qg3 Bb7 28.f5 Bxd5 29.Bxh6 gxh6 30.exd5 Rf6 31.Re6 Rxf5 32.Rxh6 Rf7 33.Qd6+ Kg8 34.Qe6 Raf8 35.Rf6 Kg7 36.Rxf7+ Rxf7 37.d6 Kf8 38.d7 Re7 39.Qf6+ Rf7 40.Qxf7+ Kxf7 41.d8Q Ke6 Black resigned, Superpippo - Sulu, FICS, 2002

11.0-0 b6 12.Qe3 d6 13.Nc3 Nf6



14.e5 dxe5 15.fxe5 Nd5

Black has an even position. If only he could castle, he'd have the better game. In the meantime, his time shortage was getting serious. 

16.Qf3


A cheap tactical trick: 16.Qg6 was better.

16...Qe7

Black could defend easily and economically with 16...Be6, for example 17.d4 Nxc3 18.Qc6+ Ke7 19.Qxc3 c6 looks okay for him. But that time shortage was hurting calexander and helping me.

17.Qxd5 Rb8 18.d4 Be6



19.Qb5+ Kd8 20.Nd5



More tactics.

I am also happy to exchange pieces and eventually cash in my "Jerome pawns".

Swapping pieces doesn't take much time, so my opponent went along with me.

20...Bxd5 21.Qxd5+ Qd7 22.Qxd7+ Kxd7 23.Rxf7+



Ooops.

23...Ke8 24.Rxc7 Rf8 25.Rxg7 Black lost on time



Of course, down a piece and four pawns, his eventual demise was only a matter of time, anyhow.