Showing posts with label keshavdmutkule. Show all posts
Showing posts with label keshavdmutkule. Show all posts

Thursday, November 24, 2016

Jerome Gambit Ending: It's Drawn, Unless It Isn't (Part 2)




[Continuing from the previous post]

perrypawnpusher - keshavdmutkule
Giuoco Piano Thematic Tournament, Chess.com, 2016



16...Rf8 17.Qh4 Bd7 18.Bg5 Qf7

Black moves his heavy pieces to the f-file.

I was not too concerned. I had no plans to open either the e- or the f-file. I planned the usual pressure on f6 while I waited.

19.a3 c5 

Here comes some of the pressure against White's center. I think my opponent would do better to keep things dynamic, however, rather than exchange pawns, as he does on the next move.

20.Rad1 cxd4 21.Rxd4 Bc6

If Black is thinking about moving into an endgame with Bishops-of-opposite-colors, then he is probably not worried about dropping a pawn. Such endings are notoriously drawish, even with a difference of 1, 2, or even (sometimes) 3 pawns. Still, I thought I had learned enough about them to prevail.

22.Rxd6 Rad8

This move overlooks something. Stockfish 7, after the game, suggested that 22...Nd7 led to an equal game.

23.Rxd8 Rxd8 24.e5

Yes.

24...Re8 25.exf6 Rxe1+ 26.Qxe1 gxf6 27.Bh4 Qg6



28.Qg3 

Giving my opponent what he apparently wants - with Queens off of the board we will have a "safe" endgame.

I was getting dizzy trying to analyze the many things his Queen and my Queen could do in this position, so I finally decided to take them off of the board.

28...f5

A bit of humor here - who will be the one to swap Queens? I think the sharper choice was 28...Kf7, as 29.Qc7+ would have been too crazy for me, and 29. Qxg6+ hxg6 is one step closer to splitting the point. Also, advancing the pawn, this move and next, puts it at risk. The way things are, Black might be able to afford being 2 pawns down, but probably not 3.

29.b3 f4 30.Qxg6+

I can't remember why I didn't play 30.Qxf4, but I guess it was to avoid 30...Qb1+, etc. The f-pawn will fall, anyhow.

30...hxg6

White will soon be 3 pawns ahead. Will it be enough? I think so.

31.Bg5 Bd5 32.c4 Be6 33.Kf2 Kg7 34.Bxf4 Kf6 



Black's defense will be based upon putting his pawns on the same colored squares as his Bishop, and then constructing a blockade of White's advancing pawns.

35.Bc7 b5 36.cxb5 Bxb3 37.Ke3 Ke6


For now, Black's b-pawn will hold off White's two Queenside pawns. However, some time in the future - when White's pawns have advanced to a5 and b6 - he will have to guard against the sacrifice a5-a6 which will let the b-pawn advance toward promotion.

In the meantime, White will create two passed pawns on the Kingside. It will be difficult for Black's Bishop to guard against threats on both sides of the board.

38.Kf4 Kd5 

Going after White's a-pawn, but the King needed to stay and play defense on the Kingside.

39.h4 Kc5 40.b6 Bc4 41.Ke5 




Black's King will not be able to get back to the Kingside in time, now. White will create a passed pawn that will cost Black his Bishop - and then the game.

41...Bf1 42.g4 Be2 43.h5 gxh5 44.gxh5 Bd3 



45.h6 Kb5 46.Kf6 Bh7 47.Kg7 Bf5 48.h7 Bxh7 49.Kxh7 Ka4 50.f4 Kxa3 Black resigned



The extra pawn will promote.

Tuesday, November 22, 2016

Jerome Gambit Ending: It's Drawn, Unless It Isn't (Part 1)

                                                                     

I won my last Jerome Gambit in the current Chess.com Giuoco Piano Thematic Tournament, so it is time, again, for me to sit and wait and see who catches or bypasses me.

In the meantime, it is fun to share the game, as it required some strategic re-thinking on my part, as well as a pleasant return to some endgame understanding that I acquired about 35 years ago, from a match game I played against my boss.

perrypawnpusher - keshavdmutkule
Giuoco Piano Thematic Tournament,  Chess.com, 2016

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



The Giuoco Piano Thematic Tournament is a 10-player, double round robin, which means that I had 9 chances to play the Jerome Gambit - and, as it turned out, I played 8 at the same time to start the tournament! (I had Black against keshavdmutkule first.) I finished with 4 wins, 3 wins on time, and 2 losses.

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf8



Ah, yes, the Jerome Defense to the Jerome Gambit - both care of Alonzo Wheeler Jerome. The defense was played successfully in two correspondence games against Daniel Jaeger in 1880.

To date my record against it is 23-6-3, which is a score of 81%, which is pretty decent.

7.Qxe5 Qe7 

Solid. Black's Queen sometimes goes to f6 in different variations, but here it finds itself a different home. I have scored 6-2-2  (70%) against this.

7...d6 was seen in perrypawnpusher - ulisimbolon, Giuoco Piano Thematic Tournament, Chess.com, 2016, (0-1, 22). (keshavdmutkule would have had to look up that game on the Chess.com website, as it wasn't posted on this blog until recently.) 

8.Qf4+ Ke8

I faced 8...Nf6 in the earlier perrypawnpusher - ERICOLSON, FICS, 2007 (1-0, 33); perrypawnpusher - frencheng, 10 5 blitz, FICS, 2010 (1/2-1/2, 31); and perrypawnpusher - jonathankochems, FICS, 2010 (1-0, 39).

The text move strikes me as a bit unusual, and it highlights one of Black's challenges in the Jerome - even if he is still better - and that is: where does his King go?

Of equal interest to me was if my opponent had found this blog, and, more specifically, my notes to my game with auswebby.   

9.O-O

I am not sure if the text is an improvement over 9.Nc3, seen in perrypawnpusher - Chesssafety, Chess.com, 2012 (1-0, 25) and perrypawnpusher - auswebby, Giuoco Piano Thematic, Chess.com, 2015 (0-1, 37), but the games could have transposed, anyway.

9...d6

More sedate and more solid than 9...Bd6 as seen in perrypawnpusher - dzetto00, Giuoco Piano Thematic, Chess.com, 2016(1/2-1/2, 25). (Too bad. I was willing to face that line again.)

10.c3 Nf6 11.d4 Bb6 12.Re1 Kf7



Black plans to castle-by-hand on the Kingside.

13.Nd2

I am used to attacking the Black King along the e-file or f-file, or advancing the "Jerome pawns" to cause chaos in the enemy's ranks.

In this game, however, I realized that there was not likely to be any kind of bashi-bazouk attack; instead, I was going to have to adopt the patient style that I have seen in some of Bill Wall's games, where he establishes a solid pawn center and waits for his opponent to bash himself against it. After all, Black has the advantage, so, by rights, he should be the one attacking, right?

13...Re8 14.Nc4 Kg8 15.Nxb6 axb6 16.f3




[to be continued]