I really like this game, but I have to admit that my attack was made possible by my opponent keeping his d-pawn un-moved for too long. After the game, Houdini and Rybka also criticized me for leaving my f-pawn still – true, but when I pushed it, things really started to move!
perrypawnpusher - Frele
blitz, FICS, 2011
1.e4 e5 2.Nf3 Nc6 3.Bc4 h6
The Semi-Italian Opening.
4.0-0 Nf6 5.Nc3 Bc5
The Semi-Itlian Four Knights Game.
6.Bxf7+
The Semi-Italian Four Knights Jerome Gambit.
6...Kxf7 7.Nxe5+ Nxe5 8.d4 Re8
One of a number of "okay" defenses in this line (solid strategic idea, keeps Black's advantage) that still are not "best". Black develops his Rook and prepares to castle-by-hand.
9.dxc5 Kg8
Black immediately went after the forward White c-pawn with 9...b6 in perrypawnpusher - catri, blitz, FICS, 2010 (½-½, 42) and with 9...d6 in perrypawnpusher - louarn, blitz, FICS, 2010 (1-0, 49).
10.f4 Nc6
This retreat seems okay to me, but after the game Houdini preferred 10...Nf7. The advance 10...Nc4 proved unfortunate after 11.e5 Nh7 12.Qd5+ Kh8 13.Qxc4 in Wall - Santiago, FICS, 2010 (1-0, 28).
11.e5 Nh7 12.Qd5+
I admit that I was mostly looking for the cheapo 12...Re6? 13.f5 with this move; but the check does little harm.
12...Kh8
White has locked down Black's d-pawn, and that is why most of Houdini's post mortem suggestions for the second player included playing ...d7-d6, anyway, even if it required temporarily sacrificing a pawn. Black cannot afford to play the game without his Queen Bishop and Queen Rook.
13.Bd2 Ne7
While Houdini holds that this still gives Black an edge, it prefers 13...d6 14.cxd6 cxd6 15.Qxd6 Qxd6 16.exd6 Bf5 17.Nd5 Rad8 18.Rfe1 Nf6 19.Nxf6 Rxe1+ 20.Bxe1 gxf6 21.Rd1 Bxc2 when Black's extra piece outweighs White's two pawns.
analysis diagram
14.Qd3 Rf8
The recommendation was still 14...d6.
15.f5 Nc6
The loss of time with this Knight gives White tactical chances.
Still, against both 15...b6 and 15...d6 White now has 16.f6!? with an even game, maybe a bit more.
16.Rae1
Houdini suggested, instead, 16.f6 – a move that I was preparing, something that I didn't want (like in earlier games) to rush into.
Its analysis shows White taking advantage of a lead in development and the available tactical nuances – to achieve a winning endgame: 16...gxf6 (here, the computer dismissed the pawn grab that attacks my Queen, 16...Nxe5, with 17.fxg7+ Kxg7 18.Qg3+ Ng6 19.Nd5 vacating c3 for the dark-squared Bishop Ng5 20.Bc3+ Kg8 21.Qd3 Nh4 22.Kh1 Ne6 23.Bf6 Qe8 24.Ne7+ Wow) 17.exf6 d6 18.Nd5 Be6 19.Bxh6 (the real reason behind 16.f5-f6) Rf7 20.Rad1 Qd7 21.Bg7+ Rxg7 22.fxg7+ Qxg7 23.cxd6 cxd6 24.Nf4 Rg8 25.Rd2 Bg4 26.h3 Ne5 27.Qc3 Bc8 28.Rxd6 Ng5 29.Ng6+ Nxg6 30.Rxg6 Qxc3 31.Rxg8+ Kxg8 32.bxc3.
analysis diagram
Um... sure... right...
Okay, I guess that proves I'm not a computer... Back to the game.
16...Ng5
My opponent hurries to reposition his Knight at f7, for defensive purposes.
You can imagine that Houdini, as a computer, was doubly horrified: Black doesn't play the necessary 16...d6 (leading to only a slight edge for White) and his move allows for the killer 17.f6.
(Silicon Dude! This is a blitz game between two club players! Relax!)
17.Nd5
Of course, everyone saw that 17.f6 again forced a winning endgame, right? After 17...gxf6 18.exf6 Rxf6 19.Rxf6 Qxf6 20.Re8+ Kg7 21.Nd5 Qd4+ 22.Qxd4+ Nxd4 23.Nxc7 Rb8 24.Bc3 Kf7 25.Bxd4 Ne6 26.Be5 Nxc7 27.Rh8 Ra8 28.Bxc7 Kg7 and there you have it...
17...Nf7 18.Bf4
Protecting the e-pawn so that I can play f5-f6, but this was unnecessary, as after 18.f6 Nfxe5 19.fxg7+ Kxg7 20.Qg3+ White's attack would be strong.
18...Re8 19.f6
If it could sigh, I sure that Houdini did when I finally played this move.
19...gxf6
After the proper defense 19...Rg8 White can apply pressure with 20.Qg6 although after 20...Qf8 it would take another tactical mele, starting with 21.Nxc7 to demonstrate my advantage (eventually finding my way to an ending where my Rook and several pawns outweights Black's two extra Knights).
Sometimes it feels that if it were not for mistakes, chess would be too hard.
20.Nxf6
The correct recapture. My 17th move not only kept Black's Queen at home with the threat of Nxc7, it also strongly supported the (eventual) advance f5-f6. Now White's pieces will swarm the Kingside.
20...Kg7 21.Qh7+ Kf8 22.Bxh6+ Ke7 23.Nd5+ Ke6 24.Nf4+
A little nervousness, missing the mate in one, but it did not get away, and I saw it the second time around.
24...Ke7 25.Ng6+ Ke6 26.Qxf7 checkmate
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ ...and related lines
(risky/nonrisky lines, tactics & psychology for fast, exciting play)
Friday, February 18, 2011
Thursday, February 17, 2011
BSG Talk: Hmmmm....
I was doing a Google search on "4.Bxf7+" to see what was out there on the internet these days, and I ran across a discussion of the Blackburne Shilling Gambit (1.e4 e5 2.Nf3 Nc6 4.Bc4 Nd4) at Wikipedia titled "Talk:Italian Game, Blackburne Shilling Gambit", first visited by this blog in "Talk" a couple of years ago.
The writers referenced Wikipedia's article on the BSG, and one opined
In "Talk" I had written
But what about that line 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4 4.Bxf7+ Ke7 ? Is there more to it than a "Jedi Mind Trick"?
I checked The Database and ran an Opening Report. There are 299 games with that line, and "Black scores badly (31%)." No surprise, there.
What of 5.Nxe5 ? Well, in 125 games "White scores above average (60%)" That sounds okay, right?
But, wait a minute.
With 5.Nxd4 (56 games) White "scores well (72%)".
For that matter, with 5.Bxg8 (60 games) White "scores excellently (78%)" and also with 5.Bc4 (20 games) White "scores excellently (80%)". Likewise with 5.c3 (5 games) White "scores excellently (80%)".
Further, with 5.Bb3 (5 games) White "scores excellently (100%)".
It is important not to get too carried away by the Opening Report, which also says that with 5.0-0 and 5.d3 (5 games each) which allow 5...Kxf7, White still "scores excellently (100%)" — both moves are clearly inferior choices (they lose a piece). For that matter, in The Database the strong 5.Bd5 (6 games) only "scores below average (50%)" for White.
So, play 5.Nxe5 for variety, but retreat (or exchange) the Bishop for the best play.
The writers referenced Wikipedia's article on the BSG, and one opined
Another suggestion not mentioned in the article is that after 1.P-K4,P-K4 2.N-KB3,N-QB3 3.B-B4,N-Q5?...I should have thought the most enterprising way of punishing black's loss of tempo is with 4.BxPcheck!! (eg. ....KXB .NxPcheck etc. with ample compensation for the piece and a probably winning attack. —This was met at first with skepticism
Disagree. After 5. ... Ke7 white has no way to continue the attack or even getting more piece in to contine. Moving the Queen out 6. Qg4 d6 7. Qg5+ Nf6 =+ or 6. Qh5 can be met with Nf6 =+. Black is better and white's 4. Bxf7 is an unsound sacrifice.However, after the correction
Mi scusi, per favore. But what about the reply 5. Nxe5 to 4. Bxf7+?! Ke7!?The skeptic relented
Much to my surprise I agree. After 4. Bxf7+ Ke7 5. Nxe5 White is better, White could of even retreated the bishop by playing 5. Bc4, so 4...Ke7 is not enough.There is much to comment upon, here...
In "Talk" I had written
I like the thoughts contained in the first paragraph, especially "ample compensation for the piece," although "and a probably winning attack" may be over-stating it a bit.I still agree – if "ample compensation" means "an even game", which is what White gets against best play by Black.
But what about that line 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4 4.Bxf7+ Ke7 ? Is there more to it than a "Jedi Mind Trick"?
I checked The Database and ran an Opening Report. There are 299 games with that line, and "Black scores badly (31%)." No surprise, there.
What of 5.Nxe5 ? Well, in 125 games "White scores above average (60%)" That sounds okay, right?
But, wait a minute.
With 5.Nxd4 (56 games) White "scores well (72%)".
For that matter, with 5.Bxg8 (60 games) White "scores excellently (78%)" and also with 5.Bc4 (20 games) White "scores excellently (80%)". Likewise with 5.c3 (5 games) White "scores excellently (80%)".
Further, with 5.Bb3 (5 games) White "scores excellently (100%)".
It is important not to get too carried away by the Opening Report, which also says that with 5.0-0 and 5.d3 (5 games each) which allow 5...Kxf7, White still "scores excellently (100%)" — both moves are clearly inferior choices (they lose a piece). For that matter, in The Database the strong 5.Bd5 (6 games) only "scores below average (50%)" for White.
So, play 5.Nxe5 for variety, but retreat (or exchange) the Bishop for the best play.
Wednesday, February 16, 2011
Things are looking up
With a game like the following, I get the sense that it is possible to play the Jerome Gambit effectively (at least every once-in-a-while) and even have a bit of fun in the process.
perrypawnpusher - Jaqueperpetuo
blitz, FICS, 20111.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+
4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6
7.Qd5+ Kf8 8.Qxc5+ N8e7
Not a frequent response (usually seen is 8...d6), but understandable: Black develops a piece even as he blocks White's check.
9.0-0 d6 10.Qe3 b6
This reminds me of my game with jdvatty.
Jerome Gambit Gemeinde member Louis Morin (mrjoker, guest) has the most experience with the 8...N8e7 defense:
10...Ke8 11.d4 Rf8 12.f4 d5 13.f5 Nh8 14.exd5 Rxf5 15.Rxf5 Bxf5 16.Nc3 Qd7 17.Bd2 Bxc2 18.Qe5 Qf5 19.Qxg7 Kd7 20.Re1 Nf7 21.Rf1 Qg6 22.Rxf7 Qxg7 23.Rxg7 Kd6 24.Nb5+ Kd7 25.Bf4 Rc8 26.Bxc7 a6 27.d6 axb5 28.Rxe7+ Kc6 29.d5+ Kxd5 30.d7 Rxc7 31.d8Q+ Black resigned, guest645 - guest1600, Internet Chess Club 2001;
10...Bd7 11.f4 Bc6 12.d4 Ke8 13.f5 Nf8 14.c4 d5 15.cxd5 Bb5 16.Rf2 c6 17.Nc3 Ba6 18.Bd2 cxd5 19.e5 Nd7 20.f6 Ng6 21.fxg7 Rg8 22.Nxd5 Rxg7 23.e6 Nb6 24.Nf6+ Ke7 25.Bb4+ Black resigned, guest4097 - guest4686, Internet Chess Club, 2004;
10...Be6 11.f4 Bf7 12.d4 Kg8 13.f5 Nf8 14.b3 Nc6 15.c4 Qf6 16.Bb2 Qe7 17.Nd2 Re8 18.Rae1 Nb4 19.Qg3 Nd7 20.e5 dxe5 21.dxe5 Kf8 22.e6 Nf6 23.exf7 Qxf7 24.Rxe8+ Qxe8 25.Re1 Qd7 26.Ne4 Qxf5 27.Nxf6 gxf6 28.Bxf6 Rg8 29.Re8+ Kxe8 30.Qxg8+ Kd7 31.Qf7+ Kc6 32.Qe8+ Kb6 33.Bd4+ c5 34.Qb5+ Kc7 35.Qxc5+ Qxc5 36.Bxc5 Nxa2 37.Bxa7 Kc6 38.Be3 Nb4 39.Kf2 Nc2 40.Ke2 b5 41.cxb5+ Kxb5 42.g4 Kb4 43.h4 Kxb3 44.g5 Kc4 45.h5 Nxe3 46.Kxe3 Kd5 47.g6 hxg6 48.h6 Ke6 49.h7 Kf7 50.h8Q Black resigned, mrjoker - cherryhead, Internet Chess Club, 2008;
10...h6 11.d4 Kg8 12.f4 c5 13.c3 cxd4 14.cxd4 Kh7 15.f5 Nf8 16.f6 gxf6 17.Qxh6+ Kg8 18.Qxf6 Neg6 19.Qf7 checkmate, mrjoker - hp9000, Internet Chess Club, 2009.
11.f4 Bb7 12.f5 Ne5 13.d4
13...Nc4
This gives White a useful tempo without getting anything in return. Black had better chances from harassing the Queen with 13...Ng4 although after 14.Qf4 Nf6 15.Nd2 his advantage would be minimal.
14.Qd3 Na5 15.f6
After the game, Fritz10 preferred the positional 15.d5, when White would have a solid grip on the light squares. That is all well and good, but I wanted to attack the King!
15...gxf6 16.Rxf6+ Ke8 17.Nc3 Rf8
Black is skeptical of White's plan: can't the Rook just be traded off?
His assessment is largely correct – White needs more pieces to join the attack before it can become successful – but the answer was to counter-attack to keep the first player occupied. Rybka and Fritz10 like the idea of ...Qc8 followed by ...Qg4, combined with ...Rg8.
As it goes, White can exchange Rooks and use a gained tempo to bring his other Rook into play, something Black cannot imitate.
18.Rxf8+ Kxf8 19.Bh6+ Ke8
It was not at first clear that 19...Kg8 was the better King move.
Of course, after 19...Kg8, the f8 square would be protected three times (King, Queen, Rook) instead of once, as it is after the text. That would be a defensive improvement, but White could still make progress, taking advantage of the weakened light squares, with 20.b4. If Black's Knight retreats with 20...Nc6, then 21.Qc4+
has to be met with 21...d5, when 22.exd5 maintains the attack on the Knight at c6 while threatening the one at d7 with a possible d5-d6+. White will keep a small advantage.
20.Rf1 Ng6 21.Qf3 Qe7
Black is holding on, although his extra piece is not doing much at a5.
White's most consistent course now would be to play 22.h4, with the idea of driving off Black's Knight on g6 which is one of the protectors of the f8 square. If Black answers 22...Nc6, bringing his offside Knight back into play, then 23.h5 Nxd4 24.Qf2 allows White to win one of the Knights.
Instead, I was content to keep Black's position cramped and torture his Knights a bit more.
22.Nd5 Bxd5 23.exd5
White's initiative will last into the endgame, for example: 23...Kd8 24.Qf5 Qd7 25.Bg5+ Kc8 26.Qxd7+ (another exchange to gain a tempo) Kxd7 27.Rf7+ Kc8 28.Rxh7 when White's Kingside pawns will allow him to triumph.
However, Black now moves to free his un-moved Rook and comes to grief.
23...Kd7 24.Qf5+ Kd8
If 24...Ke8 then 25.Bg5 wins as well, e.g. 25...Qg7 26.Re1+, etc.
25.Bg5 Black resigned
Tuesday, February 15, 2011
The amazing Chess World
Chess players with a taste for the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) might have in interest in other unorthodox openings – in which case they would be interested in the blog The amazing Chess World hosted by Davide Rozzoni.
Not only does he include various "Tips for the improving UCO players rated between 1500 and 1800", he has links to interesting software (e.g. free engines Spike 1.4 Leiden and Houdini 1.5a; as well as software to play against, Chess Hero).
Check it out.
Not only does he include various "Tips for the improving UCO players rated between 1500 and 1800", he has links to interesting software (e.g. free engines Spike 1.4 Leiden and Houdini 1.5a; as well as software to play against, Chess Hero).
Check it out.
Monday, February 14, 2011
No Way to Make A Living
Using my "extra" pawns to chase down a draw or a win against Black's extra piece in the Jerome Gambit can sometimes be an exhausting task. "That's no way to make a living," as they say. Even if your opponent slips at the end...
perrypawnpusher - vladchess
blitz, FICS, 2011
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+
4...Kxf7 5.Nxe5+ Kf8
One way to change the flow of the game and try to keep his King out of trouble.
6.Nxc6 dxc6 7.O-O
I've had success after 7.d3 Qf6 8.O-O in two games in which I reversed my 7th and 8th moves: perrypawnpusher - fortytwooz, blitz, FICS, 2010 (1-0, 29) and perrypawnpusher - Lark, blitz, FICS, 2011 (1-0, 12).
7...Nf6
Also seen: 7... Bd6 perrypawnpusher - Lark, blitz, FICS, 2009 (1-0, 18) and 7... Be6, perrypawnpusher - CorH, blitz, FICS, 2009 (0-1, 74).
8.d3 h6
8...Bg4 was seen in Lowe - Parker, corr, 1879, (1-0, 37)
9.Be3 Qe7
Exchanging Bishops was also okay.
10.d4 Bb6 11.f3 Kg8
Computers like Rybka tend to like solid pawn centers like the one White has and rate it accordingly, but there is a lot to do to get "something" out of the position for White.
12.Nc3
Moving another pawn with 12.c4 might have been better, at least according to Houdini 1.5a.
12... Kh7
The cute 12...Nd5 (note the pin on the e-pawn) was a bit better.
13. Qd3 g6 14.f4
Instead, Houdini prefers 14.Na4 Ba5 15.c4 b6 16.a3 c5 17.dxc5 Rd8 18.Qc2 bxc5 19.Bxc5 Bb6 20.Qf2 Qe8 21.Nxb6 axb6 22. Be3 Qe7 23.Rfd1 Be6 24.Qc2 Nd7 25.Qc3 Qg7 26.Bd4 Qf7 when Black's advantage is minimal.
Okay, if you say so... (The next book that I review for Chessville will be a strategy book!)
14...Rg8 15.Rae1 Ng4 16.h3 Nxe3 17.Qxe3 c5 18.Nd5 Qd6 19.Nxb6 axb6
20.dxc5 bxc5 21.Rd1 Qb6 22.Qb3 Be6 23.Qxb6 cxb6
If there was a thread in this game, I've probably lost it...
My only chance is to activate my Rooks.
24.a3 c4 25.Rd6 Bc8 26.Rxb6 Re8 27.e5 c3 28.bxc3 Rxa3 29.Rb3 Ra2 30.Rf2 Re7 31.Rd2 Rf7
32.g3
Simply overlooking the loss of a pawn.
32...Bxh3 33.Rb5 Re7 34.Kf2 Bf5 35.Kf3 h5 36.Rbd5 Ra3
Black is still better, but 36...Rc7 here would have been stronger.
Time was getting short for both of us. My plan was to continue to harass Black until one of us blundered.
37.Rc5 b6 38.Rc6 Rb7 39.Kf2 b5 40.e6 Re7 41.Rd7
Going for the swindle.
41...Rxd7 42.exd7 Bxd7
Simply 42... Ra8 was Game Over.
43.Rc7 Kh6 44.Rxd7 Rxc3 45.Rd2 b4 46.Kg2 draw.
This game reminds me of the saying about airplane landings: any one that you can walk away from is a good one...
Labels:
Chessville,
CorH,
FICS,
fortytwooz,
Houdini,
Lark,
Lowe,
Parker,
perrypawnpusher,
Rybka,
vladchess
Sunday, February 13, 2011
Levity
Jerome Gambit Gemeinde member Stipe Drinovac's sense of humor appears in his chess games. We have seen him finish off an opponent in a Jerome Gambit game with the move "0-0-0 checkmate" (see "Could Not Happen" Part 1 & Part 2). In the position below, he says "goodbye" with an underpromotion.
While Black patiently broke through on the Queenside, White used a breakthrough in the center (including an upstart "Jerome pawn" – the pawn on f6 started on d2) to win back his sacrificed piece.
31.fxg7+
White has several checkmate possibilities, and they all start with this move.
31...Kg8 32.Qxh7+
Grin.
32...Kxh7 33.gxf8/N+
Smile.
33...Kg8 34.Nxe6 Black resigned
Black is down a Rook and a Knight and faces a forced checkmate.
Saturday, February 12, 2011
It's just really that important
In a recent book review at Chessville that I wrote about GM Nigel Davies' 10 Great Ways to Get Better at Chess (Everyman Chess, 2010), I mentioned
For an alternate “great way” – or as an addition – Chapter Two suggests Study the Endgame. Again, Davies gives game examples from his students, but this should not be necessary to persuade readers of the truth of his suggestion: most club players unconsciously imitate the play of early chess-playing computers, memorizing opening moves, concentrating on tactics at the expense of long-term planning, and playing the endings like duffers…I wish I had taken more of my own advice before playing the following game.
Davies would have been justified in giving a Chapter Three (“Study the Endgame Some More”) and a Chapter Four (“Keep Studying the Endgame”) just to reinforce the topic. It’s just really that important.
perrypawnpusher - BEEB
blitz, FICS, 2011
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+
4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ g6 7.Qxe5 Bxf2+
A "calming variation", but still a side line to watch.
8.Kxf2 Qf6+
8...Qh4+ was played unsuccessfully in annicks - Ribosome, Dos Hermanas Internet, 2002, (1-0, 23).
9.Qxf6+ Nxf6
By returning the sacrificed piece, Black has moved play into a Queenless middlegame or early endgame where he is simply down a pawn.
He no longer faces the Bashi-Bazouk attack of the Jerome Gambit. However, he also no longer has an objectively won game.
Sometimes, chess is a strange game.
10.Nc3
I have also tried 10.d3, as in perrypawnpusher - ScudRocket, blitz, FICS, 2009 (1-0, 24)
10...Re8
Black could play 10...Rf8 as in blackburne03 - bobby-pisher, Internet Chess Club, 2003, (1-0, 23) or perrypawnpusher - Edvardinho, blitz, FICS, 2010 (1-0,42); or in a delayed manner such as 10...b6 11.d3 d6 12.Rf1 Rf8 in blackburne - Bullit52, ChessWorld thematic tournament, 2007 (1-0, 32),
He also could start with 10...d6 and after 11.d4 c6 12.h3 play 12...Re8 as in brianwall - maten8, Internet Chess Club, 2004 (1-0, 21).
11.d3 d6 12.Rf1 Ng4+ 13.Kg1+ Kg7
Tactics can hide even in "boring" positions. For example, now 14.Nd5
14.h3
Laziness on my part. "The game will play itself."
The possible Knight fork at c7 remains "on" for a number of moves, despite my overlooking it.
14...Ne5 15.Be3 Be6 16.b3 c5 17.a4 a6 18.Rf2 Rf8 19.Raf1 Rxf2 20.Rxf2 Rb8 21.d4 Nd7 22.dxc5 dxc5 23.Nd5 b5
Like two zombies dancing a waltz, my opponent and I push the pieces around the board and pretend that we are playing chess...
24.axb5
If someone had whispered "Pssst. This is a middlegame" I might have looked for and found the tactical 24.Bf4 Rb7 25.Nc7 Bf7 26.Rd2 Nf6 27.Nxa6 bxa4 28.Nxc5 Rb5 29.Nxa4 Nxe4 30.Re2
analysis diagram
24...axb5 25.Nf4 Bg8 26.Nd3 c4 27.bxc4 bxc4 28.Bd4+ Kh6 29.Ne5 Rb1+ 30.Rf1 Rxf1+ 31.Kxf1 Nf6
For all of my shuffling, the e-pawn will now be lost.
32.Be3+ Kh5
My opponent has grown complacent, too, or he would have played the wiser 32...Kg7
33.c3
Readers who enjoy tactical endgames surely saw the better 33.g4+ which merely threatens checkmate after 33...Kh4 34.Kg2, costing Black his Knight.
Playing on "auto-pilot" was hurting both of us.
33...Nxe4 34.Bd4
The checkmate was still on, in a slightly longer version, with 34.g4+.
34...Ng3+ 35.Kf2 Nf5
This slip costs a piece.
36.g4+ Kh4 37.gxf5 gxf5 38.Kg2
With a piece for a pawn, White is now winning – but how exactly does he win?
If he can get his King to d4 and then attack the Black pawn at c4 a second time (with the Knight) he can win it. For that to happen, it might be best to trade White's weak h-pawn for Black's f-pawn. Then, with the help of the extra piece, White's c-pawn can be "faster" than Black's h-pawn.
38...Bd5+ 39.Kh2
Protecting the pawn for now. After the game Rybka suggested 39.Nf3+, since 39...Kh5 40.Kg3 Be4 41.h4 Bd5 42.Kf4 Be6 43.Bf2 Kg6 44.Ne5+ Kh5 45.Nc6 Bd7 46.Ne7 would allow White to win the f-pawn. If Black exchanges off the Knight instead with 39...Bxf3+ 40.Kxf3 then after 40...Kxh3 41.Kf4 White's King will wander over and win the Black c-pawn and Queen his own; the Black h-pawn will not be an issue.
39...Be6 40.Nf3+ Kh5 41.Kg3 f4+
A mistaken offer to exchange pawns that I should have accepted.
42.Kh2 Kg6 43.Kg2 Kf5 44.Ne5 Bd5+ 45.Nf3 Bg8
Black is content to sit and wait.
It is not clear to me that there is a win any more for White, as Black's advanced King and h-pawn make it dangerous for White's King to leave that area to help win the c-pawn.
My "winning try" falls to the inevitability of the Bishops-of-opposite-colors endgame.
46.Kf2 Ke4 47.Nd2+ Kd3 48.Nxc4 Kxc4 49.Kf3 Be6 50.h4 Kd5 51.Kxf4
The position is drawn now, and a dozen moves later, too.
51...Bf7 52.Kg5 Bg6 53.h5 Bd3 54.Kf6 Ke4 55.Kg7 Kf4 56.h6 Kg5 57.Bf6+ Kh5 58.Bd4 Kg5 59.Be3+ Kh5 60.c4 Bxc4 61.Kxh7 Bd3+ 62.Kg7 Kg4 63.h7 Bxh7 drawn
This game contained plenty of wasted opportunities.
Labels:
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