Showing posts with label Itboss. Show all posts
Showing posts with label Itboss. Show all posts

Sunday, July 12, 2020

Jerome Gambit: Initiative


Cartoon tugboat

The following game shows White grabbing the initiative and pressing for advantage. This forces Black's pieces back, and then the defender is unable to deal with what follows. 

Wall, Bill - anonymous
lichess.org, 2020

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 



4...Kxf7 5.Nxe5+ Nxe5 6.d4 Bb6 



A reasonable response.

7.dxe5 Qh4 

This might look surprising, but Bill was 7-0 against it before this game.

8.Qf3+ Ke8 9.Nc3 c6

Bill has also seen

9...Ne7 10.O-O (10.g3 Qh3 11.Be3 d6 12.Bxb6 cxb6 13.exd6 Ng6 14.Nd5 Qd7 15.Nc7+ Kd8 16.Nxa8 Qxd6 17.Rd1 Ne5 18.Rxd6+ Ke7 19.Qc3 Kxd6 20.Qd4+ Ke6 21.Nc7+ Kf7 22.Qxe5 Rd8 23.Nb5 Bg4 24.Qf4+ Kg8 25.Qxg4 a6 26.Qe6+ Kh8 27.Nd6 Rb8 28.Nf7+ Kg8 29.Nh6+ Kh8 30.Qg8+ Rxg8 31.Nf7 checkmate, Wall,B - Itboss, lichess.org, 2016) 10...Rf8 11.Qe2 Ng6 12.Be3 Nf4 13.Qd1 Qg5 14.g3 Nh3+ 15.Kg2 Nf4+ 16.Bxf4 Rxf4 17.Qd2 Rg4 18.Qd5 c6 19.Qg8+ Ke7 20.f4 Qh6 21.f5 Qd2+ 22.Kh1 Qxc2 23.Rad1 Rxe4 24.f6+ gxf6 25.exf6 checkmate, Wall,B - Guest5595814, PlayChess.com, 2018; and 

9...Bxf2+ 10.Qxf2 Qxf2+ 11.Kxf2 Nh6 12.Nd5 Ng4+ 13.Kg3 Kd8 14.Bg5+ Nf6 15.exf6 h6 16.fxg7+ Ke8 17.gxh8=Q+ Kf7 18.Rhf1+ Kg6 19.Qxh6 checkmate, Wall,B - Shillam, lichess.org 2016 

10.Bf4 Ne7 11.Bg3 Qh6 12.O-O Rf8 13.Qd3 Ng6 



14.Rad1 Nf4 15.Qd2 Ne6 16.Qd3 Qg6 17.b4 Kf7 18.Na4 Kg8 19.Nxb6 axb6 

Black has castled-by-hand.

White starts his pawns forward to grab the initiative.

20.f4 Nc7 21.f5 Qf7 

The Queen would be safer at h5. 

22.e6 dxe6 23.fxe6 Qxf1+ 

A tactical oversight.

24.Rxf1 Rxf1+ 25.Kxf1 Bxe6 

After 25...Nxe6, Black would have a Rook and a Knight for a Queen and a pawn.

26.Bxc7 Black resigned




Tuesday, October 1, 2019

Jerome Gambit: Looking Deeper

Image result for free clip art examine

Jerome Gambit games played at bullet speed - one minute, no increment - are fun to watch or play over. They are a testament to those players who have a deep understanding of the needs of difficult positions, and who can see tactics in an eyeblink.

At the same time, I enjoy games played at a slower speed. They often produce solutions to different opening problems - or create new issues. The following game is a challenging example.

Wall, Bill - NN
Florida, 2019

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



4...Kxf7 5.Nxe5+ Nxe5 6.d4 Qh4



This is what I have called a "pie in the face" variation, one of the toughest challenges to the 6.d4 lines in the Jerome Gambit. It first appeared in Sorensen - X, Denmark, 1888 (1-0, 27).

While "objectively" strong for Black, 6...Qh4 leads to complicated play for both sides. This is illustrated by The Database - there are 2,018 games with the position after White's 6th move, with White scoring 55%. However, there are only 285 games (14%) with 6...Qh4, and in them White scores an improved 67%. These results, in part, may reflect White's familiarity with the opening and a taste for tactics that led him to play the Jerome Gambit in the first place.

Of note, Bill has faced 6...Qh4 38 times, and scored 88%. That may seem daunting for the defender, but Bill has scored 93% in all of his 6.d4 games, so 6...Qh4 has been one of the more relatively effective defenses against him.

7.O-O Ng4

Black is happy to play for checkmate.

8.h3 Bd6

Cold-blooded: White can not now take the Knight with his pawn, as that would lead to checkmate; while taking with the Queen would lead to an exchange of Queens, and the typical piece-for-two-pawns advantage (not to mention the end of White's attack).

9.e5 Nxe5

Giving the piece back, after all, for two pawns; this may have been part of Black's plan. Stockfish 10 suggests, instead, 9...Be7 10.hxg4 d6, which seems to clash with Black's "scientific" approach. However, the Kings now reverse roles, as White's becomes safer, while Black's is more at risk. 

10.dxe5 Bxe5 11.Qd5+ Kf6



Black has to try to hold on to his Bishop. Unsuccessful was 11...Kf8 seen in Wall,Bill - Mecnieri, PlayChess.com, 2018 (1-0, 23).

12.Re1

Bill was 5 - 0 with this move previously, and wins again, this game. Next time, though, he might try a suggestion of Stockfish 10, 12.Nd2 (intending Nf3). Why? Follow along in the notes.

12...d6 13.Rxe5

Nice.

A year ago, Bill's choice of moves was not as strong, although he still won: 13.Re4 Qh5 14.f4 Ne7 15.fxe5+ dxe5 16.Qd3 Bf5 17.Nc3 Rad8 18.Qf1 Rhf8 19.g4 Qg6 20.Kh2 Ke6 21.gxf5+ Rxf5 22.Qc4+ Nd5 23.Rg4 Qf7 24.Ne4 h6 25.Bd2 Ke7 26.Rag1 g5 27.Qc5+ Ke8 28.Qxa7 Nf4 29.Qxb7 Ne2 30.Qb5+ Black resigned, Wall,Bill -Guest3836682, PlayChess.com, 2018.

13...dxe5 14.Qd8+ Ne7 15.Qxh8


Three years ago, an opponent now tried 15...Qe4, and ran into trouble and lost, in Wall,Bill - Anonymous, lichess.org, 2016 (1-0, 25).

The same year, another defender tried 15...Kf7, but quickly lost his way, and, then, the game, in Wall, Bill - NN, lichess.org, 2016, (1-0, 37). He had a resource, but he was not the only one to overlook it.

Sami, at lichess.org, had the right idea against Bill, earlier this year, and uncorked 15...Bxh3!?, a Rook sacrifice which brings to mind Blackburne's famous play back in 1884. Fortunately for Bill, the game continued 16.Qxa8 Bc8? and Black staggered on a Rook down, for a while, eventually being checkmated.

The proper followup was 16...Bxg2!?, when 17.Kxg2 would allow Black to draw by repetition, starting with 17...Qg4+. Okay, a draw is not as good as Blackburne's scintillating win with Black, but it still would have been a game to brag about at the club.

Likewise, after 15...Kf7, by NN, as mentioned above, if White were to play 16.Nd2 or 16.Qd8, his only two moves to avoid a losing position, the proper (drawing) response for Black would be 16...Bxh3.

Of course, all of this is based on the idea that Black - having been gifted with two pieces - would suddenly pursue a drawing line. Psychologically, that might be very difficult.

15...Qh5 

Black treats the position casually, threatening a check at d1 and a possible fork of King and Bishop.

16.Qf8+

This is a novelty, according to The Database.

Previously, Bill had met Black's threat with 16.Nc3 in Wall,Bill - Itboss, lichess.org, 2016 (1-0, 20).

16...Ke6 17.Nc3 c6


Black passes up the safer 17...Qf7, with the hope of exchanging Queens.

18.Ne4

At first, this move doesn't look like much, but it is crushing. It is horribly ironic that the only line, now, that doesn't lead to checkmate, is the surrender of that Rook: 18...Bd7 19.Qxa8; but, of course, Black would still be lost.

18...b6 19.Bg5 Kd5 20.Qd8+ Kxe4 21.Qd3 checkmate



Brutal.

Tuesday, January 9, 2018

The Delayed Pie-in-the-Face

Image result for free clip art pie in the face

The difference between a very strong counter in the Jerome Gambit at move 6 and an ineffective defensive line (the same move one tempo later) shows the problem with delaying an active riposte. 

Wall, Bill - Guest6766281
PlayChess.com, 2017

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



4...Kxf7 5.Nxe5+ Nxe5 6.d4 Bb6



Black can decide which piece to save, the Bishop or the Knight. The text is a reasonable line.

Of course, Black's strongest response is to ignore both of the pieces and play 6...Qh4!?, what I have referred to as a pie-in-the-face variation.

7.dxe5 Qh4

A delayed pie-in-the-face? Tossing pies is very much a part of slapstick humor - and timing is always critical in comedy.

This line has been faced by Jerome Gambiteers chessmanjeff, frizerkaHR, GOH, HauntedKnight, jfhumphrey, ndrwgn, stretto, Wall and yorgos. As a group, they have not been impressed.

8.Qf3+ Ke7

A slightly better retreat is 8...Ke8, e.g. 9.Nc3 (9.O-O Ne7 10.Nc3 Rf8 11.Qe2 g5 12.Be3 Ng6 13.Nd5 Kd8 14.Qd2 h6 15.Bxb6 axb6 16.Nxc7 Kxc7 17.Qd6+ Kd8 18.Qxg6 Re8 19.Qxb6+ Ke7 20.Qf6 checkmate, Wall,B - Guest2616286, PlayChess.com, 2017) 9...Ne7 (9...Bxf2+ 10.Qxf2 Qxf2+ 11.Kxf2 Nh6 12.Nd5 Ng4+ 13.Kg3 Kd8 14.Bg5+ Nf6 15.exf6 h6 16.fxg7+ Ke8 17.gxh8=Q+ Kf7 18.Rhf1+ Kg6 19.Qxh6 checkmate, Wall,B - Shillam, lichess.org, 201610.g3 Qh3 11.Be3 d6 12.Bxb6 cxb6 13.exd6 Ng6 14.Nd5 Qd7 15.Nc7+ Kd8 16.Nxa8 Qxd6 17.Rd1 Ne5 18.Rxd6+ Ke7 19.Qc3 Kxd6 20.Qd4+ Ke6 21.Nc7+ Kf7 22.Qxe5 Rd8 23.Nb5 Bg4 24.Qf4+ Kg8 25.Qxg4 a6 26.Qe6+ Kh8 27.Nd6 Rb8 28.Nf7+ Kg8 29.Nh6+ Kh8 30.Qg8+ Rxg8 31.Nf7 checkmate, Wall,B - Itboss, lichess.org, 2016.

9.Nc3

Or 9.O-O Nh6 10.Nc3 Rf8 11.Nd5+ Kd8 12.Qxf8 checkmate, Wall,B - Guest2293428, PlayChess.com, 2017.

9...Nh6 10.Nd5+ Kd8

Once again, e8 is the better square for the King.

11.O-O

White also has the sneaky 11.h3!? threatening g2-g3, winning the Queen. Black could escape by returning a piece for two pawns, i.e. 11...Bxf2+ 12. Qxf2 Qxe4+ but White would be better.

For the record, 11.g3?! directly could be answered by 11...Qg4 and White does not gain much by exchanging Queens, while he would lose time if he movee his Queen to avoid the swap.

11...Bd4

Looking to grab the pawn at e5, but he is overlooking a few things. He could have maintained an even game with 11...c6 12.Nxb6 axb6.

12.g3 Qh3

Why was e8 the better square for Black's King to retreat to (as suggested in the note to move 10)?

Why was the Black Bishop's trip to d4 problematic (as mentioned in the note to move 11)?

Why couldn't Black retreat his Queen to g4 (as in the note to move 11), instead of h3?

13.Bg5+ Ke8 14.Nxc7 checkmate




Monday, September 11, 2017

Jerome Gambit: Always Strangeness

One guiding principle in choosing a Jerome Gambit game to share is when it contains a dash of strangeness. The game below again shows the computer's interest in draws-by-repetition - and Bill Wall's interest in wins-by-checkmate.

Wall, Bill - Guest2616286
PlayChess.com, 2017

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 



4...Kxf7 5.Nxe5+ Nxe5 6.d4 Bb6 



We have recently seen examples of this reasonable line.

7.dxe5 Qh4 

7...Qe7 was seen in Wall,B - NN, lichess.org, 2016 (1-0, 35). 

8.Qf3+ Ke8 

Better than 8...Ke7 as seen in Wall,B - Guest2293428, PlayChess.com, 2017 (1-0, 12) and Wall,B - Guest6766281, PlayChess.com, 2017 (1-0, 14).

9.O-O 

Or 9.Nc3 as in Wall,B - Itboss, lichess.org 2016, (1-0, 31) 

9...Ne7 

10.Nc3 Rf8 11.Qe2 g5 

Black sees opportunity on the Kingside. The risk is that old Jerome Gambit story: Black's light-squared Bishop is at home, blocking the development of a Rook. 

12.Be3 Ng6 13.Nd5 Kd8 14.Qd2 h6 



15.Bxb6 axb6 16.Nxc7 



White shows a sense of humor. First he sacrifices a Bishop on f7, then he sacrifices a Knight on c7. Of course, in the latter case, he has a tactic to allow the recovery of the piece.

16...Kxc7 17.Qd6+ Kd8 18.Qxg6 Re8 



Before this move, Stockfish 8 was not so comfortable with White's  position, recommending as best 18...Ra6 (to provide help along the 6th rank after ...b5) 19.g3 Qh3 20.Rfd1 Re8 21.Qf6+ Kc7 22.Qd6+ Kd8 23.Qf6+ and a draw by repetition. Again, I do not think that dropping a half point was in Bill's plans.

After the text, the issue of extra pawns vs extra piece becomes immaterial.  

19.Qxb6+ Ke7 20.Qf6 checkmate



Sunday, May 14, 2017

Jerome Gambit: More Videos

When I mentioned the video "Is Jerome Gambit Sound?" April 5,  a few posts ago, I neglected to list the three other Jerome Gambit videos that Mato Jelic had posted earlier at YouTube.

They were pointed out to me by Roland Kensdale at the English Chess Forum.

"Must See Jerome Gambit" concerns the game "NN vs Blackburne, England, 1880" - the best-known and most exciting Jerome Gambit. (As we have only very recently learned, the year was more likely 1884).

Check out also "The Birth of  Jerome Gambit", focused on "Alonzo Wheeler Jerome vs William A Shinkman, correspondence 1874". This is the earliest game that I have a score of, although Jerome, himself, said he first played his gambit against G.J. Dougherty.

The "Practical Application of Jerome Gambit" features the game "Bill Wall vs Itboss , Online, 2016" 

All of Mato Jelic's videos are great fun and well worth viewing.

Wednesday, April 26, 2017

Jerome Gambit: Lack of Development, Congestion, Disaster

Gambits are all about development and attack. Failing to defend against gambits is often about lack of development, and its consequences. Witness the following game.

Wall, Bill - WGMS
FICS, 2017

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




4...Kxf7 5.Nxe5+ Nxe5 6.d4 Bb6 




Again, a reasonable line. See "A Reasonable Line".

7.dxe5 Ne7 

Not the only line Bill has faced, to wit -

7...Qh4 8.Qf3+ Ke7 (8...Ke8 9.Nc3 Ne7 (9...Bxf2+ 10.Qxf2 Qxf2+ 11.Kxf2 Nh6 12.Nd5 Ng4+ 13.Kg3 Kd8 14.Bg5+ Nf6 15.exf6 h6 16.fxg7+ Ke8 17.gxh8=Q+ Kf7 18.Rhf1+ Kg6 19.Qxh6 checkmate, Wall,B - Shillam, lichess.org, 2016) 10.g3 Qh3 11.Be3 d6 12.Bxb6 cxb6 13.exd6 Ng6 14.Nd5 Qd7 15.Nc7+ Kd8 16.Nxa8 Qxd6 17.Rd1 Ne5 18.Rxd6+ Ke7 19.Qc3 Kxd6 20.Qd4+ Ke6 21.Nc7+ Kf7 22.Qxe5 Rd8 23.Nb5 Bg4 24.Qf4+ Kg8 25.Qxg4 a6 26.Qe6+ Kh8 27.Nd6 Rb8 28.Nf7+ Kg8 29.Nh6+ Kh8 30.Qg8+ Rxg8 31.Nf7 checkmate, Wall,B - Itboss, lichess.org, 20169.Nc3 Nh6 10.Nd5+ Kd8 11.O-O Bd4 12.g3 Qh3 13.Bg5+ Ke8 14.Nxc7 checkmate, Wall,B-Guest6766281, PlayChess.com, 2017;

7...d6 8.O-O Be6 9.Qf3+ Ke8 10.Nc3 a6 11.Be3 dxe5 12.Qh5+ Bf7 13.Qxe5+ Qe7 14.Qxg7 Qf6 15.Bh6 Bd4 16.e5 Qg6 17.Qf8+ Kd7 18.Qxa8 Qxh6 19.Rfd1 c5 20.Qxb7+ Ke8 21.Qb8+ Ke7 22.Ne2 Bh5 23.Nxd4 Bxd1 24.Nf5+ Black resigned, Wall,B - TenAndOnly10, lichess.org, 2016; and

7...Qe7 8.Qf3+ Ke8 9.Nc3 Qxe5 10.O-O Nf6 11.Bf4 Qh5 12.Qg3 d6 13.Qxg7 Rf8 14.Nd5 Qf7 15.Bh6 Nxd5 16.Qxf8+ Qxf8 17.Bxf8 Kxf8 18.exd5 Bf5 19.c3 Re8 20.Rfe1 Be4 21.Rad1 Kf7 22.Kf1 Re5 23.f3 Bg6 24.Rxe5 dxe5 25.Ke2 e4 26.b4 exf3+ 27.Kxf3 Bh5+ 28.g4 Bg6 29.c4 a6 30.d6 cxd6 31.Rxd6 Bb1 32.Rxb6 Bxa2 33.Rxb7+ Ke6 34.Rb6+ Kd7 35.c5 Black resigned, Wall,B - NN, lichess.org, 2016.

8.Qf3+ Ke8 9.O-O Rf8 10.Qh5+ g6 11.Qxh7 g5 12.Qh5+ Rf7 13.Bxg5 

Despite Black's dogged Kingside defense, it is likely that White's four pawns are worth more than Black's extra piece.

13...c6 14.Nd2 Qc7

Getting out of the pin on the Knight, but Black needed the freedom that would come with 14...d5.

15.Nc4

Targeting the d6 square, which Black overlooks.

15...a5 16.Nd6+ Black resigned



Black can avoid mate only by giving up his Queen.

Thursday, January 19, 2017

Jerome Gambit: A Reasonable Line

The Jerome Gambit is full of "reasonable" lines of play for Black, and the defender has to be aware - is it a playable reasonable line, or an unplayable reasonable line; and then, more importantly, what comes next?

Wall, Bill - TenAndOnly10
lichess.org, 2016

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



4...Kxf7 5.Nxe5+ Nxe5 6.d4 Bb6



This seems like a reasonable move, although not frequently played in comparison with other lines. It shows up in 111 games in The Database, where Black scores 50%. (Compare that to the 1,528 games with the same moves up until 6.d4, where Black scores 48%.)

Of course, any chance of catching Bill by suprise is likely to be small.

7.dxe5 d6

Alternatives:

7...Qh4 8.Qf3+ Ke8 9.Nc3 Ne7 (9...Bxf2+ 10.Qxf2 Qxf2+ 11.Kxf2 Nh6 12.Nd5 Ng4+ 13.Kg3 Kd8 14.Bg5+ Nf6 15.exf6 h6 16.fxg7+ Ke8 17.gxh8=Q+ Kf7 18.Rhf1+ Kg6 19.Qxh6 checkmate, Wall,B - Shillam, lichess.org, 2016) 10.g3 Qh3 11.Be3 d6 12.Bxb6 cxb6 13.exd6 Ng6 14.Nd5 Qd7 15.Nc7+ Kd8 16.Nxa8 Qxd6 17.Rd1 Ne5 18.Rxd6+ Ke7 19.Qc3 Kxd6 20.Qd4+ Ke6 21.Nc7+ Kf7 22.Qxe5 Rd8 23.Nb5 Bg4 24.Qf4+ Kg8 25.Qxg4 a6 26.Qe6+ Kh8 27.Nd6 Rb8 28.Nf7+ Kg8 29.Nh6+ Kh8 30.Qg8+ Rxg8 31.Nf7 checkmate, Wall,B - Itboss, lichess.org, 2016

7...Qe7 8.Qf3+ Ke8 9.Nc3 Qxe5 10.O-O Nf6 11.Bf4 Qh5 12.Qg3 d6 13.Qxg7 Rf8 14.Nd5 Qf7 15.Bh6 Nxd5 16.Qxf8+ Qxf8 17.Bxf8 Kxf8 18.exd5 Bf5 19.c3 Re8 20.Rfe1 Be4 21.Rad1 Kf7 22.Kf1 Re5 23.f3 Bg6 24.Rxe5 dxe5 25.Ke2 e4 26.b4 exf3+ 27.Kxf3 Bh5+ 28.g4 Bg6 29.c4 a6 30.d6 cxd6 31.Rxd6 Bb1 32.Rxb6 Bxa2 33.Rxb7+ Ke6 34.Rb6+ Kd7 35.c5 Black resigned, Wall,B - NN, lichess.org, 2016.

8.O-O Be6 9.Qf3+ Ke8 10.Nc3 a6 11.Be3 dxe5



For now White has only one pawn for his sacrificed piece, but Black's uneasy King comes close to making up the rest of the compensation.

12.Qh5+ Bf7 13.Qxe5+ Qe7 14.Qxg7 Qf6



15.Bh6 Bd4 16.e5 Qg6



This move allows White's pieces to become troublesome - enough so that Stockfish 8 suggests instead that Black give back the exchange with 16...Qxh6 17.Qxh8 Rd8 and then exchange some more pieces, e.g. 18.Ne4 Qg6 19.c3 Qxe4 20.cxd4 Bd5 21.Qg7 Ne7 22.Rfe1 Qg6 23.Qxg6+ hxg6 where White only has an edge.

17.Qf8+ Kd7 18. Qxa8 Qxh6



Black returns the exchange in his own way. The difference is that he is not now as equipped to protect his King.

19.Rfd1 c5 20.Qxb7+ Ke8 21.Qb8+ Ke7 22.Ne2 Bh5



23.Nxd4 Bxd1

A final slip.

24.Nf5+ Black resigned