Saturday, November 20, 2010

Only Pieces of the Puzzle



If a chess game is like a puzzle, the following contest shows that my opponent and I could find only pieces of it, never quite putting together the full picture.


perrypawnpusher - richiehill
blitz, FICS, 2010

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Nc3 Bc5


The Italian Four Knights Game.

5.Bxf7+

The Italian Four Knights Jerome Gambit.

5...Kxf7 6.Nxe5+

Last year my opponent tried his hand with this opening and scored quickly: 6.Ng5+ Ke7 7.d4 exd4 8.Nd5+ Nxd5 9.exd5 Kd6 10.Nf7+ Black resigned, richiehill - SullenKhan, FICS, 2009.

He also had a successful go with the Blackburne Shilling Jerome Gambit, richiehill - PlatinumKnight, FICS, 2009.

6...Nxe5 7.d4


7...Nxe4

An interesting defensive idea that I've looked at in "Nothing Much Happened" and "Navigating On One's Own".

Most often seen is 7...Bxd4 and best is 7...Bd6.


My opponent once tried 7...Bb4 8.dxe5 Nxe4 9.Qd5+ Kf8 10.Qxe4 Bxc3+ 11.bxc3 d5 12.Qf4+ Kg8 13.0-0 c6 14.Qg3 Bf5 15.Bg5 Qd7 16.f4 Bxc2 17.Qe3 Bf5 18.Rf3 Re8 19.Rg3 g6 20.Bf6 Kf7 21.Bxh8 Rxh8 22.Qd4 Re8 23.Qxa7 Be4 24.Qe3 Kg8 25.Rg5 Rf8 26.Rf1 Ra8 27.c4 Rxa2 28.cxd5 cxd5 29.Qb3 Rc2 30.Re1 h6 31.Rg3 Qc6 32.Rxe4 Rc1+ 33.Kf2 Rc2+ 34.Re2 Qc5+ 35.Rge3 Rxe2+ 36.Kxe2 Black resigned, jfhumphrey - richiehill, FICS, 2009.

8.Nxe4 Bb4+

This is actually better than either 8...Bxd4 (yorgos -josephjorkens, FICS, 2009, [1-0,45]), 8...Be7 (perrypawnpusher - sdockray, blitz, FICS, 2010 [1-0, 28] or 8...Bb6 (perrypawnpusher - BallsOfFire, blitz, FICS, 2010, [aborted by adjudication, 9]).

9.c3 d5

10.Ng5+ Kg6

The King would be safer at g8. 

11.dxe5 Bc5


Since Black removes a piece from danger and points it at f2, it is not immediately clear that this move makes his situation worse. 

After the game Rybka suggested 11...h6 12.Nh3 Bxh3 13.gxh3 Bc5 14.Rg1+ Kh7 15.Qd3+ Kg8 16.Be3 Bxe3 17.Qxe3 c6 18.0-0-0 Qe7 when White is stll better, but his advantage is less than after the text.

12.h4

I was so happy with the "boldness" of this move that it took me a while to realize that I had actually moved the wrong pawn.

After 12.g4, Black has no time for 12...h6, as 13.Qd3+ Bf5 14.Qxf5 is mate. His best defense, 12...Qf8, still would lose a piece to 13.Qc2+ and after 13...Bf5 White can even throw in the gnarly 14.h4! just to see if Black is paying attention.

  



analysis diagram







Of course, if Black now takes the Queen it is 15.h5 mate. However, after 14...h5 the King is okay for the moment, and White has to settle with winning the Bishop after all with 15.gxf5+.

12...h5

13.0-0

Rybka prefers 13.Qd3+ but there are still some fireworks left in the position. 

13...Bg4

My opponent understandably guards against dicovered checks.

Again, Rybka, which, after the game, understood more than either richiehill or I did, suggested 13...Bf5. After 14.Qf3 Be7 White has the leap 15.Nf7 which either wins the exchange or, after 15...Kxf7 16.Qxf5+ Kg8 allows White to build the pressure with 17.Bg5.





analysis diagram







14.Qd3+ Bf5 15.Qg3 Bg4


Again, the Bishop shields the King. Against what? Rybka gives a peek: if instead 15...Qe7, then 16.Bf4 Rhf8 17.Ne4+ Kh7 18.Bg5 Bxe4 19.Bxe7 Bxe7 and White has won the Queen for two pieces.

16.Be3

Still worrying about that Bishop on c5!

It turns out that there was another Knight leap available to White: 16.Ne6 Qe7 17.Nxc5 Qxc5 18.Be3 Qe7 19.f3 and the shield (Black's Bishop) has become the target!

16...Qe7 17.f4

Hoping to get something going by advancing the "Jerome pawns", but Black's heroic Bishops can again thwart much of that with 17...Bxe3+ 18.Qxe3 Bf5.

17...c6


Taking a breath to shore up his position, Black lets the pawn distract the powerful prelate...

18.f5+ Bxf5

If 18...Kh7 then 19.f6 rips the position open. The text move finally allows a discovered check, winning a piece.

19.Ne4+ Black resigned

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