The Killing Blow (Part I)

It is annoying to play a familiar opening line – only to slip and end up in grave danger. There is little margin for error in any variation of the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+).

While I awaited the killing blow, I consoled myself with something IM Gary Lane wrote in one of his "Opening Lanes" columns at ChessCafe:

It is always fun to find an opening which can cause confusion with something unusual. The psychological impact can be huge and the hapless opponent is obliged to consume large amounts of time coping with the new situation.

ICCF Senior IM Tim Harding was equally philosophical in one of his "The Kibitzer" columns, also at ChessCafe

One of Black's (psychological) problems is that... looks so obviously unsound that it is hard to decide which "refutation" to adopt. Psychologically, opponents often don't play in a stable and rational way when they believe their game is won from a very early stage and they tend to underestimate their opponents

Lane and Harding were not writing specifically about the Jerome Gambit, but they could have been.

perrypawnpusher  - KenWhitaker
blitz 6 12, FICS, 2010

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

The Semi-Italian Opening.

4.0-0 Bc5 5.Bxf7+

The Semi-Italian Jerome Gambit.

5...Kxf7 6.Nxe5+ Nxe5 7.Qh5+ Ng6

Counting this game, I have had this position 10 times, and scored 9 1/2 points. I was feeling comfortable, while my opponent was already eating into his time.

8.Qd5+

It is, of course, possible to capture the Bishop directly with 8.Qxc5, (see RomanDurdis - ifufocop, FICS, 2005, abhailey - cumelen,mm Open Fast #1, net-chess.com, 2008 and Black Puma - TWODOGS, JGTourney4, ChessWorld, 2009) but I prefer the "nudge" to give my opponents more to think about.

8...Ke8

Alternatives: 8...Kf8 9.Qxc5+ d6 (9...N8e7 10.Nc3 b6 11.Qe3 Bb7 12.f4 d5 13.f5 d4 14.fxg6+ Kg8 15.Qf4 dxc3 16.Qf7 checkmate, perrypawnpusher - sarBear, blitz FICS, 2009) 10.Qe3 N8e7 11.d4 Kg8 12.Nc3 Kh7 13.f4 Rf8 14.f5 Nh8 15.g4 Kg8 16.g5 hxg5 17.Qxg5 Nf7 18.Qg3 Nc6 19.f6 g5 20.Bxg5 Nxg5 21.Qxg5+ Kf7 22.Qg7+ Ke6 23.d5+ Ke5 24.Qg3+ Kd4 25.Qd3+ Ke5 26.Qg3+ Kd4 27.Qd3+ Ke5 28.Qg3+ Kd4 29.Qd3+ Ke5 30.Qg3+ Kd4 31.Qd3+ Ke5 32.Qg3+ Kd4 draw,  perrypawnpusher - pascalwilliams, blitz FICS, 2007; and
 
8...Kf6 9.Qf5+ Ke7 10.Qxc5+ Ke8 11.f4 d6 12.Qe3 Qf6 13.f5 Ne5 14.d4 Nc4 15.Qg3 Qxd4+ 16.Kh1 Kd7 17.Nc3 b6 18.Bf4 Ba6 19.Rad1 Qc5 20.Qxg7+ Ne7 21.e5 Rag8 22.e6+ Kc6 23.Qxe7 Re8 24.Qd7+ Kb7 25.b3 Nd2 26.Bxd2 Bxf1 27.Rxf1 Qd4 28.f6 Rhf8 29.Nb5 Qxd2 30.Qxc7+ Ka6 31.Qxa7+ Kxb5 32.Qd7+ Ka6 33.e7 Qe2 34.Rg1 Rxf6 35.Qxe8 Rf1 36.Qa8+ Kb5 37.e8Q+ Qxe8 38.Qxe8+ Kb4 39.Rxf1 Black resigned, perrypawnpusher - episodeninetynine, blitz FICS, 2009.

9.Qxc5 d6

Not quite as good is 9...Qe7, as in 10.Qe3 Nf6 11.Nc3 c6 12.f4 b6 13.f5 Ne5 14.d4 Ba6 15.dxe5 Qxe5 16.Re1 Kf7 17.Qf3 Rhe8 18.Bf4 Qc5+ 19.Be3 Qb5 20.Bd4 Qxb2 21.e5 Nd5 22.e6+ Kg8 23.Qg4 Nxc3 24.Qxg7checkmate, perrypawnpusher - Cibola, blitz FICS, 2009.

Creative alternatives are : 9...b6 10.Qe3 Bb7 11.Nc3 Nf6 12.f4 Qe7 13.d3 d6 14.f5 Nf8 15.Bd2 Kd7 16.Rae1 Re8 17.Qd4 Kc8 18.Qa4 Kb8 19.Nb5 Ba6 20.Qxa6 Qd8 21.Qxa7+ Kc8 22.Qa8+ Kd7 23.Qxd8+ Kxd8 24.Bc3 N8d7 25.Nd4 c5 26.Ne6+ Ke7 27.Nxg7 Reg8 28.Bxf6+ Kxf6 29.Ne6 Re8 30.Re3 b5 31.Rg3 b4 32.Rg6+ Black lost on time, perrypawnpusher - BHAseagull, blitz FICS, 2010; and

9...N8e7 10.f4 d6 11.Qe3 Rf8 12.f5 Ne5 13.d4 Ng4 14.Qg3 h5 15.h3 Nf6 16.e5 Ne4 17.Qe3 d5 18.f6 gxf6 19.exf6 Nc6 20.Qh6 Rf7 21.Bg5 Nxd4 22.Nc3 Nxg5 23.Qxg5 Ne6 24.Qg8+ Rf8 25.f7+ Ke7 26.Qg6 Qd7 27.Rae1 c6 28.Qf6+ Kd6 29.Qe5+ Ke7 30.Qf6+ Kd6 31.Qe5+ Ke7 32.Qxh5 a6 33.Qg5+ Kd6 34.Qe5+ Ke7 35.Qg7 Kd8 36.Rxe6 Qxe6 37.Qxf8+ Kc7 38.Qe8 Bd7 39.Qxe6 Bxe6 40.f8Q Rxf8 41.Rxf8 b5 42.g4 Kd7 43.Kg2 Ke7 44.Ra8 d4 45.Ne2 b4 46.Rxa6 Bc4 47.Rxc6 Bxe2 48.Kf2 Bb5 49.Rb6 Ba4 50.b3 Bd7 51.Rxb4 Kf6 52.Rxd4 Bb5 53.a4 Be8 54.a5 Kg5 55.Kg3 Bc6 56.a6 Bh1 57.h4+ Kf6 58.a7 Ke5 59.Rd8 Black resigned, perrypawnpusher - apinheiro, blitz FICS, 2010.

10.Qe3 Nf6

Or 10...Qf6 11.f4 N8e7 12.Nc3 c6 13.f5 Ne5 14.d4 Nc4 15.Qd3 b5 16.b3 Nb6 17.Bf4 Nd7 18.Rae1 Qf7 19.Bxd6 Nf6 20.Bxe7 Kxe7 21.e5 Nd5 22.f6+ Kf8 23.fxg7+ Kxg7 24.Rxf7+ Kxf7 25.Qf3+ Ke7 26.Nxd5+ Kd8 27.Qf6+ Kd7 28.Qe7checkmate, perrypawnpusher - saltos, blitz FICS 2009.

Provocative was 10...Ne5 11.d4 Ng4 12.Qg3 N8f6 13.Nc3 Be6 14.h3 Bc4 15.Re1 Qd7 16.hxg4 Nxg4 17.f3 Nf6 18.e5 Nh5 19.exd6+ Kf7 20.Qh2 g6 21.Re7+ Black resigned, perrypawnpusher - Kotimatka, blitz FICS, 2009

11.d4

Slightly better might have been 11.f4 Qe7 12.d3 d5 13.e5 Nd7 14.Nc3 Nb6 15.Qg3 Nh4 16.Bd2 Nf5 17.Qg6+ Kd8 18.Rae1 Nd4 19.f5 Bxf5 20.Rxf5 Nxf5 21.Qxf5 Rf8 22.Qg4 c6 23.b3 Kc7 24.Bf4 Rae8 25.d4 Qe6 26.Qxg7+ Kb8 27.Na4 Nxa4 28.bxa4 Rxf4 29.Rb1 Rg8 30.Qxb7 checkmate perrypawnpusher - LeifPetersen, blitz FICS, 2010.

11...Kf7 12.f4 Re8 13.Nc3 Kg8

Here we have a familiar type of position: Black has castled-by-hand and brought his Rook to the e-file; while White has his "Jerome pawns" ready to advance.

I've taken about a minute of thinking time; my opponent, a good bit more.

It should be like taking a stroll in my own back yard...

14.f5 Ne7

15.h3

Preparing for g2-g4, but without much thought. Later, Rybka pointed out the right way to accomplish this: 15.Qg3 Kh7 16.Qh4 Rf8 17.Bg5 Qd7 18.Rad1 Qc6 19.Bxf6 Rxf6 20.g4

analysis diagram







Black would still have an edge, but White would have his thematic pawn play.

15...Nxf5

Ouch! The e-pawn is pinned... Even worse would have been: 15...d5, when White would have to give up the exchange, either by 16.e5 Nxf5 17.Rxf5 Bxf5 or (according to Rybka) 16.Qg3 dxe4 17.Bxh6 Qxd4+ 18.Kh1 Nh5 19.Qg5 Nxf5 20.Rxf5 Bxf5 21.Qxh5 Rf8 22.Bf4.

16.Qd3 Nh4

At this point I started using up thinking time. I found a way to complicate things, and made my move. 

17.Bf4

Oh, no! Where did that come from?? That wasn't what I was thinking about at all...

[to be continued]

Half a defense is worse than none at all...

Joseph Blackburne's play against the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) makes a powerful impression: it is a dangerous opening for White to play, one that may lead to a counter-sacrifice and a scintillating checkmate by Black.

But, it is helpful for those who wish to follow in The Black Death's footsteps to know the whole Blackburne Defense, not just the first few moves or the general idea...

perrypawnpusher  - saltos
blitz FICS, 2010

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5

Last year our game went: 3...h6 4.0-0 (4.c3 Na5 5.Bxf7+ Kxf7 6.Nxe5+ Ke8 7.Qh5+ Ke7 8.Ng6+ Kd6 9.Qd5 checkmate, Ghandy - saltos, blitz FICS, 2009) Bc5 5.Bxf7+ Kxf7 6.Nxe5+ Nxe5 7.Qh5+ Ng6 8.Qd5+ Ke8 9.Qxc5 d6 10.Qe3 Qf6 11.f4 N8e7 12.Nc3 c6 13.f5 Ne5 14.d4 Nc4 15.Qd3 b5 16.b3 Nb6 17.Bf4 Nd7 18.Rae1 Qf7 19.Bxd6 Nf6 20.Bxe7 Kxe7 21.e5 Nd5 22.f6+ Kf8 23.fxg7+ Kxg7 24.Rxf7+ Kxf7 25.Qf3+ Ke7 26.Nxd5+ Kd8 27.Qf6+ Kd7 28.Qe7 checkmate, perrypawnpusher - saltos, blitz FICS, 2009.

4.Bxf7+

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ g6

This can be the beginning of the Blackburne Defense, or it can be a knee-jerk reaction by Black to the Queen check.

7.Qxe5 d6

Likewise, this can be Blackburne's brilliant offer of a Rook – or the quick protection of the Bishop on c5, with thought for little else (after all, how can White's opening be any good?).

8.Qxh8 Be6

Okay... It's not Blackburne's Defense, which would continue 8...Qh4.

9.Qxh7+ Kf8 10.Qxg6

White's Queen grabs some pawns – the extra material is nice – while making sure that Her Majesty will not be trapped behind enemy lines.

An alternative: 10.d4 Bxd4 11.Bh6+ Ke8 12.Nc3 Qf6 13.0-0 Bf7 14.Nd5 Qe6 15.Nxc7+ Kd8 16.Nxe6+ Black resigned, Petasluk - cuadriculas, FICS, 2008.

10...Qf6 11.Qxf6+ Nxf6

The exchange of Queens has removed any danger from Black's King, but White is the exchange and four pawns ahead in the late middlegame / early ending.

12.d3 Ke7 13.Be3 Bxe3 14.fxe3 Rf8 15.Rf1

White simply plans to exchange pieces and then get a passed pawn moving – while trying to avoid a blunder.

15...Ng4 16.Rxf8 Kxf8 17.h3 Nxe3 18.Na3 Nxg2+

19.Kf2 Nf4 20.h4 Kg7 21.Rh1

A little beter was 21.Nb5

21...c6 22.Nc4 d5 23.Nd2 dxe4 24.Nxe4 Bd5 25.Kf3 Ne6

26.c4 Nd4+ 27.Ke3 Nf5+ 28.Kf4 Be6 29.Ng5 Bd7 30.Nf3 c5

31.Rg1+ Kh6 32.Ne5 Be6

A slip.

33.Rg6+ Kh5 34.Rxe6 Nxh4 35.Re7

35...Ng2+ 36.Kf3 Nh4+ 37.Ke4 Kg5 38.Nf3+ Nxf3 39.Kxf3 Kf6 40.Rxb7 Black resigned

Lucky, Lucky, Lucky

Despite my misgivings (see "I am pond scum") I continue to play the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+).

After the following game (a Semi-Italian Jerome Gambit, 1.e4 e5 2.Nf3 Nc6 3.Bc4 h6 4.0-0 Bc5 5.Bxf7+) had ended, my opponent, unhappy with his game at the end, had written "blind, blind, blind ". I complimented him on his play and good sportsmanship (in contrast, see "I expected better..."), as I indeed had been "lucky, lucky, lucky."

perrypawnpusher  - LeifPetersen
blitz FICS, 2010

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

4.0-0 Bc5 5.Bxf7+

5...Kxf7 6.Nxe5+ Nxe5 7.Qh5+ Ng6

This is analagous to the Jerome Gambit line 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6, with ...h7-h6 thrown in for Black and 0-0 thrown in for White.

I was surprised to find only 9 other game examples in the New Year's Database.

8.Qd5+

Nudge.

The earliest Semi-Italian Jerome Gambit game in the New Year's Database is RomanDurdis - ifufocop, blitz FICS, 2005, which continued: 8.Qxc5 d6 9.Qd5+ Be6 10.Qxb7 Nf6 11.Qb5 Rf8 12.d3 Kg8 13.c4 Qe7 14.f4 Bd7 15.Qb3 Rab8 16.Qc3 Nh7 17.f5 Ne5 18.Qe1 Nf6 19.Qg3 Kh8 20.Nc3 Qe8 21.Nd5 Nxd5 22.cxd5 Qh5 23.Bf4 Nf7 24.b3 Bb5 25.Rac1 Rb7 26.Rf2 Nd8 27.Qf3 Qxf3 28.Rxf3 Nf7 29.Rff1 Re8 30.Rfe1 Ne5 31.Bxe5 Rxe5 32.a4 Bd7 33.Rb1 c6 34.dxc6 Bxc6 35.d4 Rxe4 36.Rxe4 Bxe4 37.Re1 d5 38.Kf2 Rxb3 39.g4 Rb4 40.Ke3 Rxa4 41.Rc1 Kh7 42.Kf4 Rxd4 43.h4 Rd2 44.Rc7 Rf2+ 45.Ke5 Ra2 46.g5 a5 47.g6+ Kg8 48.Rc8 checkmate.

8...Ke8

Or 8...Kf8 9.Qxc5+ d6 (9...N8e7 10.Nc3 b6 11.Qe3 Bb7 12.f4 d5 13.f5 d4 14.fxg6+ Kg8 15.Qf4 dxc3 16.Qf7 checkmate, perrypawnpusher - sarBear, blitz FICS, 2009) 10.Qe3 N8e7 11.d4 Kg8 12.Nc3 Kh7 13.f4 Rf8 14.f5 Nh8 15.g4 Kg8 16.g5 hxg5 17.Qxg5 Nf7 18.Qg3 Nc6 19.f6 g5 20.Bxg5 Nxg5 21.Qxg5+ Kf7 22.Qg7+ Ke6 23.d5+ Ke5 24.Qg3+ Kd4 25.Qd3+ Ke5 26.Qg3+ Kd4 27.Qd3+ Ke5 28.Qg3+ Kd4 29.Qd3+ Ke5 30.Qg3+ Kd4 31.Qd3+ Ke5 32.Qg3+ Kd4 draw, perrypawnpusher - pascalwilliams, blitz FICS, 2007;

Or 8...Kf6 9.Qf5+ Ke7 10.Qxc5+ Ke8 11.f4 d6 12.Qe3 Qf6 13.f5 Ne5 14.d4 Nc4 15.Qg3 Qxd4+ 16.Kh1 Kd7 17.Nc3 b6 18.Bf4 Ba6 19.Rad1 Qc5 20.Qxg7+ Ne7 21.e5 Rag8 22.e6+ Kc6 23.Qxe7 Re8 24.Qd7+ Kb7 25.b3 Nd2 26.Bxd2 Bxf1 27.Rxf1 Qd4 28.f6 Rhf8 29.Nb5 Qxd2 30.Qxc7+ Ka6 31.Qxa7+ Kxb5 32.Qd7+ Ka6 33.e7 Qe2 34.Rg1 Rxf6 35.Qxe8 Rf1 36.Qa8+ Kb5 37.e8Q+ Qxe8 38.Qxe8+ Kb4 39.Rxf1 Black resigned, perrypawnpusher - episodeninetynine, blitz FICS, 2009.

9.Qxc5 d6

An alternate was 9...Qe7 10.Qe3 Nf6 11.Nc3 c6 12.f4 b6 13.f5 Ne5 14.d4 Ba6 15.dxe5 Qxe5 16.Re1 Kf7 17.Qf3 Rhe8 18.Bf4 Qc5+ 19.Be3 Qb5 20.Bd4 Qxb2 21.e5 Nd5 22.e6+ Kg8 23.Qg4 Nxc3 24.Qxg7 checkmate, perrypawnpusher - Cibola, blitz FICS, 2009

10.Qe3 Nf6

Or 10...Qf6 11.f4 N8e7 12.Nc3 c6 13.f5 Ne5 14.d4 Nc4 15.Qd3 b5 16.b3 Nb6 17.Bf4 Nd7 18.Rae1 Qf7 19.Bxd6 Nf6 20.Bxe7 Kxe7 21.e5 Nd5 22.f6+ Kf8 23.fxg7+ Kxg7 24.Rxf7+ Kxf7 25.Qf3+ Ke7 26.Nxd5+ Kd8 27.Qf6+ Kd7 28.Qe7 checkmate, perrypawnpusher - saltos, blitz FICS, 2009;

Or 10...Ne5 11.d4 Ng4 12.Qg3 N8f6 13.Nc3 Be6 14.h3 Bc4 15.Re1 Qd7 16.hxg4 Nxg4 17.f3 Nf6 18.e5 Nh5 19.exd6+ Kf7 20.Qh2 g6 21.Re7+ Black resigned, perrypawnpusher - Kotimatka, blitz FICS, 2009.

Interestingly enough, there are 249 games in the New Year's Database with this position – if you take away the current game's ...h7-h6 from Black and 0-0 from White.

On the other hand the current game is the only example coming from the Semi-Italian move order.

(For the record, there are about twice as many Jerome Gambit games as Semi-Italian games in the Database.)

11.f4 Qe7

I have included references to my games to show that I was not a stranger to this opening variation. Still, there were many things for me to figure out.

12.d3 d5

For the next dozen or so moves, Rybka grumped after the game that LeifPetersen and I were not making the best moves. True, we traded small advantages back and forth, but, then again, we are carbon-based, not silicon-based.

13.e5 Nd7

14.Nc3 Nb6 15.Qg3 Nh4

Focusing on the f5 square, where future action will take place.

16.Bd2 Nf5 17.Qg6+ Kd8 18.Rae1 Nd4

I didn't think that the pawn on c2 was worth chasing after. Neither did my opponent.

19.f5 Bxf5 20.Rxf5 Nxf5 21.Qxf5 Rf8

By trading two pieces for a Rook and a pawn, Black has calmed the position, which is about equal. White has a pawn for the exchange, is better developed, and has a safer King. Perhaps the passed pawn will turn out to be something.

22.Qg4 c6 23.b3 Kc7 24.Bf4 Rae8

Black's development is looking threatening.

25.d4 Qe6

The offer of a pawn to open an attacking file. White can grab it safely, if he follows up correctly

26.Qxg7+ Kb8 27.Na4

Ooops...

27...Nxa4 28.bxa4 Rxf4

Down a Rook for a couple of pawns, the only chance that I have left is that my opponent might be as exhilirated as I am depressed...

29.Rb1 Rg8 30.Qxb7 Black checkmate

Okay, after his last move, my opponent was pretty depressed, too. 29...b6 would have been sufficient to cause my resignation.

Indeed, I was lucky, lucky, lucky.

Blunder Check

When I finish a chess game, especially one with the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), I often turn it over to Deep Rybka to analyze, using the "blunder check" mode set at 5 minutes per move. Usually the computer gives me variations that show where I missed an opportunity to win a pawn, or where I unnecessarily gave up a piece, or where I overlooked giving or receiving a checkmate...

I thought I played pretty well in the following game, so I was totally unprepared for the comments from my electronic partner.

perrypawnpusher  - saltos

blitz, FICS, 2009

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

Ah, the Semi-Italian Opening. See here, here, and here for more information.

4.0–0 Bc5 5.Bxf7+

5...Kxf7 6.Nxe5+ Nxe5 7.Qh5+ Ng6

The 7...Ng6 defense (as opposed to, say, 7...Ke6) is not "bad", but I wonder if it is "best", as it allows White to capture the Bishop at c5, which was doing a good job of pinning the White f-pawn and preventing its advance.

8.Qd5+ Ke8 9.Qxc5 d6 10.Qe3 Qf6

This is a new move in this position, but it is a good one. In fact, throughout the game Black seems to be making good moves and having a good position. Then he loses.

11.f4 N8e7 12.Nc3 c6

Now it's time for a series of moves, a kind that we've seen before (see "I apologize, Jerome Gambit" and "Diagnosis: Misplaced Knight").

13.f5 Ne5 14.d4 Nc4 15.Qd3 b5 16.b3 Nb6

17.Bf4

This leads to a small advantage, Rybka says. Instead, the computer recommends: 17.e5 Qh4 18.Ne4 Nxf5 19.g3 Qe7 20.exd6 Qf7 21.Nc5 Qd5 22.Bb2 Kd8 23.d7 Bxd7 24.Nxd7 Nxg3 25.hxg3 Qxd7 26.Qg6 Re8 27.Rf7 Qe6 28.Rxg7 Qxg6 29.Rxg6 Kc7 30.Rg7+ Kd6 31.Rf1 Rg8 32.Rf6+. 

analysis diagram






Um, sure, er, well, yes – that's exactly the other line I was considering...

17...Nd7

Not good enough. Rybka suggests: 17...b4 18.Ne2 a5 19.Qg3 Ba6 20.Rae1 d5 21.Bc7 Nd7 22.Qe3 Ra7 23.Bg3 Kd8 24.e5 Qg5 25.Qf2 Rh7 26.Bh4 Qd2 27.Nf4 Qxf2+ 28.Rxf2 Nf8 29.e6 Bb5 30.Rc1 with only a small advantage for White.

analysis diagram






Yes, I'm sure I heard my opponent muttering: Rooks on Rook two! Rooks on Rook two! What a fool I was! (Not really.)

18.Rae1 Qf7

Looking at this diagram, would you figure that Black was more than a piece worse than White? Rybka would.

 19.Bxd6 Nf6

Going down the equivalent of a Rook, according to Rybka, which suggests the following, instead: 19...Nb6 20.d5 b4 21.Bxb4 a5 22.Bxe7 Qxe7 23.d6 Qe5 24.Nd5 Rb8 25.Ne7 Qc5+ 26.Rf2 Rb7 27.Ng6 Rg8 28.e5 Rd7 29.Qe4 Qb4 30.c4.

analysis diagram








I don't think I understand chess anymore...

20.Bxe7 Kxe7 21.e5 Nd5 22.f6+ Kf8

Allows mate in 16, Rybka says. Sure, I knew that... Lucky for me, Black now falls apart.

23.fxg7+ Kxg7 24.Rxf7+ Kxf7 25.Qf3+

25...Ke7 26.Nxd5+ Kd8 27.Qf6+ Kd7 28.Qe7 checkmate