Showing posts with label Elephant Gambit. Show all posts
Showing posts with label Elephant Gambit. Show all posts

Thursday, 21 March 2024

Young Champion

THE Bad Wörishofen U2000 was won by a Switzerland-registered junior (born 2010), Ziad Kanana, whose score of +7=1-1 gained 123.6 Fide elo.
In the following game he shows an unusual way to meet a black defence that is still popular at club level.
The opening experiment, if such is what it was, can hardly be called a success, at least not at first, but as soon as the tactics start there is only one player in it.

Ziad Kanana (1918) - Michael Walda (1948)
Elephant Gambit
1.e4 e5 2.Nf3 d5!? 3.Nc3!?
Much more popular are 3.Nxe5 and 3.exd5, but the text, which emphasises development, has also been tried by grandmasters.
3...dxe4
The engines reckon 3...d4 gives Black at least the better side of equality.
4.Nxe4 f5 5.Nc3 e4 6.Ne5 Qd4 7.f4
Dieter Schatz (2218) - Dieter Pirrot* (2401), Bad Wiessee (Bavaria) 2005, continued 7.Nc4 Bc5, after which 8.Qh5+ is unclear - Stockfish16 gives White a slight edge, but Komodo14.1 reckons Black is at least equal. Instead the game saw 8.Ne3 Nf6 9.Nb5? (better is 9.d3, but Black has the upper hand, according to the engines) Qe5 10.b4?! (this does not help, but the engines reckon White is already lost anyway) Bxe3 11.dxe3 Qxa1 12.Nxc7+ Ke7 13.b5? Qc3+ 14.Qd2 Qxc7 15.Ba3+ Kf7 16.Bd6 Qd8 0-1.
7....Be6 8.Nb5 Qb6 9.Qh5+ g6 10.Nxg6
How should Black proceed?
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10...Bf7?
White is also better after 10...Nf6 11.Qh4, so best is 10...hxg6!, when 11.Qxh8 (11.Qxg6+? Kd7 leaves White with insufficient compensation for a knight) sees White up the exchange and a pawn. But after 11...Nc6 Black will quickly castle queenside, enjoying a lead in development and attacking chances against a white king precariously uncastled - full compensation, according to the engines.
11.Qxf5 Bxg6?!
Probably better, but still horrible, is 11...hxg6.
12.Qe5+ Kd8 13.Qxh8 Qe6
Not much better is 13...Bf7 14.Qxh7.
14.f5! Bxf5 15.Nd4 Qf7 16.Nxf5 Nd7
Black is a rook and pawn down and could resign with a clear conscience, but perhaps thought there might be a way to trap the white queen
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17.Ne3!?
Coolly done.
The game finished:
17...Ndf6 18.Bc4 Qe7 19.Nd5 Nxd5 20.Qxg8 Nf6 21.Qf7 Qd6 22.Qe6 1-0
*The same Dieter Pirrot who won this year's Bad Wörishofen seniors' tournament.

Wednesday, 22 December 2021

Remembering The Elephant Gambit

ONE of the joys of going through old chess magazines is coming across interesting articles that have faded from the memory.
One such I recently spotted is My Dream Game by Philip Corbin in the January 2005 issue of Chess.
It concerns his win with the Elephant Gambit at the 2004 Olympiad against an international master.
The gambit starts 1.e4 e5 2.Nf3 d5, which apparently has served PC well, at least judging by his statistics in ChessBase's 2021 Mega database.
In 20 games he has amassed a score of +12=1-7, which is 62%. His average rating in those games was 2226, and his performance rating is given as 2242, albeit only 11 of his opponents had a rating.
However, if you take out the unrated opponents, and a game from a simul, PC's score becomes +3=0-7. His average rating in those 10 games was 2208, and his performance rating is given as 2162.
Nevertheless I thought it would be fun to go through the game published in Chess, using modern engines to cast a critical eye on the key moments.

Tadej Sakelšek (Slovenia, IM 2425) - Corbin (Barbados, FM 2242)
Olympiad (Mallorca) Round 1
Comments in italics are by PC
1.e4 e5 2.Nf3 d5
At this olympiad I played (the Elephant Gambit) four times, scoring three wins and a draw.
3.exd5
I deem 3,Nxe5 Bd6 4.d4 dxe4 OK for Black.
3...Bd6
3...e4?! is well met by 4.Qe2.
4.d4!?
More popular in Mega21 is 4.Nc3, which has been played by Karpov, but the text scores 15 percentage points higher and is much preferred by Stockfish14 and Komodo12.1.1.
4...e4 5.Ne5 Nf6 6.Bb5+ c6!?
The safer, but more-placid, alternative is 6...Bd7 with an unclear position. I was playing for maximum complications.
7.dxc6 bxc6 8.Nxc6 Qb6!
The only move that makes the line playable. This game is the first time the line appears in Mega21, but the implication of PC's notes is that it was known to Elephant aficionados.
Position after 8...Qb6!
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9.c4
Later games saw 9.Nc3, which is slightly preferred by Komodo12.1.1. The text is preferred by Stockfish14.
Note that, as PC points out, 9.Nxb8?? loses a piece to 9...Qxb5. Less clear, but probably also good for Black, is 9.Nxa7+?! Bd7 10.c4 Qxa7 11.Nc3, when White has three pawns for a knight, but the engines prefer Black. Another possibility in the latter variation is 10.Nc8, when PC's 10...Bb4+! seems strong, eg 11.c3 Qxb5, although after 12.a4!?, Komodo12.1.1 reckons Black is only slightly better (Black is winning, according to Stockfish14).
9...Nc6 10.d5
The engines prefer 10.Nc3!?, although Komodo12.1.1 gives the nod for a while to the text. After 10.Nc3!? best play, according to the engines, runs 10...0-0 11.c5 Qc7 12.cxd6 Qxd6 13.Bxc6 Qxc6 14.0-0, when White is a pawn up.
10...0-0 11.Bxc6 Ng4!
PC also gives this an exclamation mark, and rightly it would seem; certainly the text is the engines' choice. The crude threat is checkmate on f2, but there is much more to the move than that.
12.Qe2
This is the only way to keep a slight edge, according to the engines.
12...f5!?
Offering a whole rook to gain a tempo in the attack! The idea of the move came to me when preparing for a game in the 2004 Barbados championship. I had not gotten the chance to play it then (so) this game was the first test over the board of my new rook-sac idea!
PC gives the text two exclamation marks, but Komodo12.1.1 prefers 12...Ne5, when it reckons 13.0-0 Nxc6 14.dxc6 Qxc6 15.Nc3 is only slightly better for White. Stockfish14 gives 12...Rb8 13.h3 Ne5 14.0-0 f5, when it reckons Black's initiative at  least compensates for his two-pawn deficit. PC rejected this latter line because of 14.Qxe4!?, which wins a third pawn, but Stockfish14 continues 14...f5 15.Qe3 Qc7, claiming Black is winning (Komodo12.1.1 'only' gives Black the upper hand).
13.Bxa8
The engines come to narrowly prefer this over the arguably more-practical 13.Nc3, but in any event the position is very tricky for White and, at least for a while, Komodo12.1.1 prefers 13.Nc3.
13...f4 14.f3
Stockfish14 prefers 14.Nc3, but then 14...f3 15.gxf3 exf3 requires White to find 16.Be3 Nxe3 17.Qxe3 Bc5 18.Na4! Qa5+ 19.Qd2 Qxa4, when White is up the exchange and two pawns but Black still has a strong attack.
14...Ne5!?
This seems even stronger than 14...exf3 14.gxf3 Ne5, when both 15.Kd1 and 15.Bc6 keep White in the game, according to the engines.
15.Nc3
Not 15.Qxe4? Bf5 16.Qe2 Nd3+ 17.Kd1 Rxa8, when Black has a winning  attack, according to the engines. Similarly 15.fxe4? Bg4 16.Qc2 f3 is horrific for White.
15...exf3 16.gxf3 Bf5 17.Ne4
Komodo12.1.1 at first suggests 17.c5, but the simple 17...Qxc5 18.Bc6 Nd3+ leads to advantage for Black after 19.Kd1 Nf2+ 20.Ke1 Nxh1. Its second suggestion of 17.Bc6 is dismissed by Stockfish14 with 17...Qd4, the point being Komodo12.1..1's 18.h4 fails to 18...Bc5 19.Qg2 Nd3+ 20.Kf1 Nf2.
17...Bb4+ 18.Kd1?!
White's best chance seems to be 18.Bd2 Bxd2+ 19.Nxd2, although both PC's 19...Nd3+ and the engines' 19...Re8 leave Black well on top.
18...Qd4+ 19.Kc2 Nxf3! 20.Rd1 Bxe4+ 21.Kb3 Rb8!
Black is 'only' the exchange and a pawn down, so he offers his queen.
22.Bc6
This allows a quick mate, but 22.Rxd4 Nxd4+ 23.Ka4 Nxe2 also weaves a mating net, eg PC points out 24.Bc6 Bc2+ 25.b3 Nc3#.
22...Bd2+ 23.Bb5
If 23.Ka4, the engines give a two-bishop mate with 23...Qxb2!? (the prosaic 23...Rb4+ also mates) 24.Bxb2 Bc2+ 25.Ka3 Bb4#.
23...Rxb5+!
Yet another sac.
24.cxb5
Or 24.Ka3 Ra5+ 25.Kb3 Qb6#.
24...Qb4#
An amazing game in which I have been unable to find a move by White that deserves an unadorned question mark. Is the Elephant Gambit really that good?!

Tuesday, 11 May 2021

Beat The ... Elephant Gambit

IN this series I am looking at the statistically best way to play against popular opening lines.
The numbers are drawn from the 2021 edition of ChessBase's Mega database, ignoring, where possible, those results that include very few games and so are statistically insignificant.

The Elephant Gambit: 1.e4 e5 2.Nf3 d5!?, also known as the Queen's Pawn Countergambit, can come as a shock to whites who have not seen it before.
The replies 3.exd5 and 3.Nxe5 both score 58%, but the latter is less than half as popular as the former, at least in Mega21, so that is the move I will cover.
Position after 3.Nxe5
Black has two popular replies and two other moves that, while not common in Mega21, could easily be played at club level.

A) 3...Bd6 (619 games)
After 4.d4 dxe4 5.Bf4!? Nf6 6.Bc4 0-0 7.Nc3 White scores 80%, albeit from a small sample (it is unusual for a line not to split long before this but Black has no significant alternatives along the way).

B) 3...dxe4 (200 games)
After 4.Bc4 the line splits.
B1 4...Qg5!? 5.Bxf7+ Ke7 6.d4 Qxg2 7.Rf1, after which the line splits again.
B1.1 7...Bh3 8.Bc4 Nf6 9.Bf4 scores 83% for White, albeit from a small sample.
B1.2 7...Nd7 8.Bc4 scores 75% for White, albeit from a small sample.
B2 4...Nh6 5.d4 scores 100% for White, albeit from a small sample.

C) 3...Qe7 (60 games)
After 4.d4 the line splits.
C1 4...f6 5.Nc3!? fxe5 6.Nxd5 Qf7 (6...Qd6?! 7.Qh5+ g6 8.Qxe5+ Qxe5 9.dxe5 gives White a large advantage, according to Stockfish13 and Komodo12.1.1) 7.Bc4 scores 100% for White, albeit from a small sample.
C2 4...dxe4 is rarely seen, but White scores 100% after both 5.Bc4 and 5...Nc3.

D) 3...Nf6 (19 games)
After 4.d4 the line splits.
D1 4...Nxe4 5.Nd2 Nxd2 6.Bxd2 scores 79% for White, albeit from a small sample.
D2 4...dxe4?! 5.Bc4 Be6 (5...Nd5?! 6.Nxf7! Kxf7 7.Qh5+ etc) 6.Bxe6 fxe6 7.Bg5 scores 83% for White, albeit from a small sample.

Thursday, 9 April 2020

New Spice (part five)

TIME for some new spice for Black.
After 1.e4 e5 2.Nf3, Black has two pawn-thrusts that aim to seize the initiative, even at the cost of a pawn.
The better-known is 3...f5!? - the Latvian Gambit, around which a lot of theory has grown up.
The other is 3...d5!? - the Elephant Gambit, which is less-often seen but, for what it is worth, is much more to the taste of the analysis engines Stockfish10 and Komodo10.
Both gambits have been tried by grandmasters, but only the Elephant has a GM for whom it is a major part of his repertoire (defined as a "frequent player" in ChessBase's Mega database).
Pavel Skatchkov has 28 Elephant Gambits in the 2020 edition of Mega, scoring +13=7-8.
That is impressive enough, but arguably he has done even better than those numbers suggest as his first four Elephant Gambits in the database were losses when he was still rated below 2300.
Here he is in action against Swiss grandmaster Florian Jenni.
Jenni (2519) - Skatchkov (2506)
Champions Challenge (online blitz) 2007
1.e4 e5 2.Nf3 d5!?
Unlike the Latvian, where 2...f5!? weakens the black kingside and is a strictly non-developing move, the Elephant opens a diagonal for Black's light-square bishop and leaves the black f pawn on its starting square.
3.Nxe5!?
This has its high-level adherents, but is nowhere near as popular as 3.exd5.
3...Bd6
Howard Staunton preferred 3...Qe7, but twice lost with that move against John Cochrane.
4.d4 dxe4 5.Nc3!?
More popular is 5.Nc4, but then 5...Nf6 6.Nxd6+ Qxd6 7.Be2 0-0 8.0-0 Nc6 9.Be3 Nd5 10.Nd2?! (10.c4 seems better) f5 (the engines reckon Black is better after 10...Nxe3 11.fxe3 Qh6) 11.c4? (11.Bc4 is better) Nxe3 12.fxe3 Qxe3 gave Black a strong game in Nikolai Kobanov (2472) - Skatchkov (2486), World Blitz Championship (Khanty-Mansiysk, Russia) 2013 (0-1, 32 moves).
5...Bxe5 6.dxe5 Qad1+ 7.Kxd1 Bf5
Three years earlier, Skatchkov had played 7...Nc6, beating a much-lower rated opponent in a game played with a more-normal time-control.
8.Nd5 Na6 9.Bxa6!?
This looks so natural, especially at blitz, but the engines prefer 9.Bb5+ or 9.Bg5.
9...0-0-0 10.Ke2
The engines reckon White has a slight edge after 10.Bc4!? c6 11.Ke2 cxd5 12.Bb3.
10...Rxd5 11.Bc4 Rc5 12.Bb3 Ne7 13.Be3 Rxe5 14.Bd4
The engines marginally prefer this to winning the pawn back with 14.Bxf7, after which they give 14...Bg4+ 15.Ke1, when it is difficult for White to get coordinated, but the engines reckon White's bishop-pair gives equality.
14...Bg4+ 15.Ke3
By inserting Bd4, White has made it possible to keep his rooks connected, but nevertheless the engines prefer 15.Kf1!?, with equality thanks to the menacing white bishops.
15...Nd5+
This is the problem with advancing the king - Black gets a tempo to block the action of White's light-square bishop.
16.Kd2 Rg5 17.h3
The engines prefer 17.Rae1, but after 17...Be6 18.Rhg1 Rd8 the e pawn cannot be taken because of threats down the d file, so White is obliged to play 19.Kc1. Then 19...Nf4 20.Bxe6+ Nxe6 21.Bc3 Nc5 sees Black keep his extra pawn, although he has trouble with coordination.
17...Be6
How should White proceed?
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18.Bxd5!?
Giving up the bishop-pair is rarely an easy decision, but Jenni is seeking salvation in opposite-coloured bishops. However, after …
18...Rxd5 19.Ke3 f6
… he did not restore material equality with 20.Kxe4!? because then the king's precarious position gives Black strong tactical chances, eg 20...Re8 21.c3 Rg5.
20.Bc3 Rhd8 21.g4
Good for Black is 21.Kxe4 Bf5+ followed by ...Bxc2.
21...Bf7 22.h4 h5 23.Rag1 hxg4 24.Rxg4 Rf5 25.Rh3 g6 26.Rxe4 Bd5
26...Bxa2!? looks possible as 27.b3? simply wastes a tempo: Black replies 27...Bb1 and picks up the c2 pawn. Also no good for White is 27.Ra4 Re8+ 28.Kd3 Bd5 29.Rxa7 Kb8 and 30...Rxf2.
27.Re7 Bxa2
Clearly Black has lost a tempo on 26...Bxa2. The engines reckon 27...Rf8 gives Black a tiny edge.
28.Rg3 g5 29.hxg5 fxg5 30.Re5?!
30.Be5 is a complete equaliser as 30...Rd7 is met by 31.Re8+
30...Rd5 31.Rxd5 Bxd5 32.b3 b6 33.f3 Bd5 34.Kd4 Kb7 35.Rxg5 c5+
Having battled back to an almost-certain draw, Jenni now produced a blitz howler.
36.Ke3?? Rxg5 0-1
Note that one of the peculiarities of this game is that, although the Elephant Gambit is a gambit by Black, it was Black who was a pawn up for much of the time.
**********
After 1.e4 e5 2.Nf3 d5!?, White usually plays 3.exd5.
Black's choice mainly lies between the traditional 3...e4 (by far the most-popular move), the more-modern 3...Bd6 and the somewhat strange ...Qxd5.
Grandmaster Skatchkov only plays 3...e4, as far as I can discover, which is probably as good a recommendation as any other.
White's best reply is generally acknowledge to be 4.Qe2, but that does not mean everyone plays it.
Second in popularity is 4.Nd4, after which the main line runs 4...Qxd5 5.Nb3 Nf6 6.Nc3 Qe5 7.Be2, with advantage to Black, according to Stockfish10, but level according to Komodo10.
There are 48 games in Mega20 where 4.Bb5+?? was played, including by one player rated over 2300, but White is losing a piece after 4...c6 5.dxc6 bxc6.
Much more reasonable is 4.Ne5, when the main line runs 4...Qxd5 5.d4 exd4 6.Nxd3 Nf6 7.Nc3, with an equal position, according to the engines.
But there is no doubt 4.Qe2 is normal, which Black usually meets with 4...Nf6, after which there comes a major parting of the ways.
Pavel Ponkratov (2469) - Skatchkov (2506)
Champions Challenge (online blitz) 2007
5.Nc3
This was Kasparov's choice and is White's most-popular move, but 5.d3 has been recommended in two books that many players of the white pieces will have, so I will look at that in a separate game.
5...Be7 6.Nxe4 Nxd5!?
More popular is 6...0-0, but Skatchkov played the text in all six of his games that reached this point in Mega20. The engines agree with him - just.
7.d3
The main move, but plenty of other moves have been tried. It is probably fair to say most white players, let alone most white club players, will be long out of book by now.
7...0-0 8.Qd1!?
This is obviously retrograde, but the idea is to get the queen off the sensitive e file, develop the light-square bishop and castle short, while keeping White's extra pawn.
Note that 8.g3?, trying to speed kingside castling, runs into 8...f5 9.Nc3 Bb4 with ...Re8(+) to come, and if 9.Ned2, then the immediate 9...Re8 is strong.
White could also think about castling long. 8.Bd2 Re8 9.0-0-0 f5 10.Nc3?? Nxc3 11.Bxc3 Bg5+ was a disaster for White in Boris Smirnov (2187) - Ivan Frolov (2309), Cheliabinsk (Russia) IM tournament 2016 (0-1, 20 moves), but the engines' suggested novelty 12.h4!? is very unclear.
Another preparatory move for long castling is 8.Be3, but 8...f5 is a tricky move to face, eg the engines continue 9.Ned2 Re8 10.0-0-0 Nc6 when, if anything, they prefer Black.
8...c5!?
8...Nc6?! was played in Sergei Movsesian (2721) - Maxime Vachier-Lagrave (2703), World Blitz Championship (Moscow) 2010, but White simply played Be2 and castled on the next move, after which it was difficult to see what compensation Black had for his pawn-minus (1-0, 65 moves).
More popular is 8...f5, but after 9.Ng3 Re8, then again Be2 followed by 0-0 seems good for White.
9.Be2 Nc6 10.0-0 Bf5
10...f5 was played in Petrov (-) - Skatchkov (2250), Moscow Open 1995. That game continued 11.Nc3 Nxc3 12.bxc3 Bf6 13.Bd2, when Black has good compensation for the pawn, according to the engines. Skatchkov played the very aggressive 13...g5, and after 14.Qc1?! (the engines reckon 14.d4 is better) would have had a good game if he had played the consistent 14...g4. Instead he tried 14...Qe8, and it was only after 15.Re1 that 15...g4 came. That was met with 16.d4 Kh8 (not 16...gxf3? 17.Bc4+ etc) 17.Bb5 with an excellent position for White (1-0, 28 moves).
11.Re1 Bg6!?
This may be a little slow. The engines want Black to get on with development with 11...Qc7 or 11...Re8, albeit slightly preferring White.
12.Bf1 Qd7 13.c3 h6 14.Qb3 Kh8?!
The engines prefer 14...Rad8, or even an immediate 14...f5!?
15.Bd2
The engines like levering open the centre with 15.d4!?
15...b6?
One of the ideas of ...Kh8 was, as is often the case, to play ...f5, and this should have come now, according to the engines, before White has time to strike in the centre.
16.Rad1 Rae8 17.Bc1
17.d4 is strong, according to the engines, eg 17...cxd4 18.Bb5.
17...Bd8 18.Ng3 Bc7?
Missing the danger on the d file. Much better is 18...Rxe1 to get White's queen's rook off the d file, and, if White keeps it there by playing 19.Nxe1, then 19...Na5 or 19...Bf6.
19.Rxe8 Rxe8 20.d4 cxd4
The engines prefer 20...Na5, albeit with a large advantage for White after 21.Qb5 Qxb5 22.Bxb5 Rd8 23.Ne5.
21.Nxd4 Rd8 22.Nb5 Bxg3 23.hxg3
Black is in trouble on the d file, and anyway has no compensation for his missing pawn (1-0, 67 moves).
**********
After 1.e4 e5 2.Nf3 d5 3.exd5 e4 4.Qe2 Nf6, the move 5.d3 is recommended by Larry Kaufman in The Chess Advantage In Black And White, and by Eric Schiller & John Watson in Survive & Beat Annoying Chess Openings.
Michail Kutumov (-) - Skatchkov (2370)
Krasnodar (Russia) 1997
5...Qxd5
How should White proceed?
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6.Nbd2
This is the most-popular move in Mega20, but Kaufman and Schiller/Watson give an exclamation mark to 6.Nfd2, which is only fourth-most popular, but was Paul Keres's choice in a 1943 game. Skatchkov has faced 6.Nfd2 four times in Mega20, with each game continuing 6...Nc6 7.Nc3 Qa5.
Two of them then saw 8.Ndxe4, after which Skatchkov's 8...Be6!? gives near equality, according to the engines, despite Black being a pawn down. Black need not fear 9.Nxf6 as he will castle long, whereupon the half-open g file works in his favour.
More challenging for Black seems to be 8.Nb3, when both of Skatchkov's games, which were played in 2004, continued 8...Qb4 9.Bd2 Be6 10.Nxe4, when the engines believe White has the upper hand. Skatchkov drew both games, but they were against opponents rated more than 180 elo lower (admittedly one of the games was only drawn because Skatchkov fell for a stalemate trick).
A possible improvement for Black, or at least an interesting practical try, is 8...Qa6!? (the engines' suggestion of 8...Qe5 is well-met by 9.dxe4), which seems to be a novelty. My idea is that after 9.dxe4, which the engines reckon is best, Black plays 9...Qxe2+ 10.Bxe2 Be6.
Then Stockfish10 quite likes 11.0-0 for White, which can be met by 11...0-0-0. Stockfish10 comes to prefer 10.Be3, which is also Komodo10's choice, which can also be met by 11...0-0-0, when White is more-or-less obliged to castle kingside (or play f3 and Kf2).
Either way, we have a game of opposite-side castling, giving practical chances for both sides. There is no doubt the engines prefer White, which is usually the case in the early stages of an Elephant Gambit, but it is the type of position Skatchkov, for one, thrives in - a feel for playing on both sides of the board is crucial.
In any event, if White knows about (or finds at the board) 6.Nfd2, and later plays 8.Nb3, then 8...Qa6!? may be Black's best practical try.
6...Nc6 7.Nxe4 Be6 8.Nxf6+ gxf6 9.Be3
Black's kingside has been smashed, but his king will find safety on the queenside, and the half-open g file will prove useful if White castles kingside.
9...0-0-0
This is a tricky position for White. He is a pawn up and has the better pawn-structure, but Black has a sizeable lead in development (he has castled and has a queen, rook, bishop and knight developed; White has not castled and, although he has three pieces developed, he will need to spend a tempo opening a diagonal for the king's bishop).
10.g3?!
Stockfish10 gives 10.a3!? Kb8 11.d4 Bc5 11.c4!? Qd6 13.0-0-0, when White has got his king to relative safety, but at the cost of contracting a backward d pawn. Black has good compensation for his pawn-minus, according to both engines.
Komodo10 gives 10.c3 Rg8 11.d4!? h5!? 12.Qd2, claiming a slight edge for White, although Stockfish10 reckons the position is equal.
10...Ne5 11.Bg2 Bb4+ 12.c3
Forced, as a king move loses to 12...Bg4.
12...Nxd3+ 13.Kf1 Bc5 14.Nd4 Qc4 15.Nxe6?!
The engines' 16.Kg1 seems to give equal chances.
15...fxe6 16.Bxc5 Qxc5 17.Be4
Attacking the knight and freeing g2 for the white king.
17...Qc4 18.b3?
Not 18.Kg2?? as 18...Nf4+ wins the white queen.
Perhaps best is 18.Re1!?, and if 18...Nxb2, then 19.Bxb7+! Kxb7 20.Rb1 with good chances to equalise as 20...Qc3? runs into 21.Rxb2+ Ka8 (forced) 22.Qe4+. However, the engines reckon 18...Rhe8 19.Bxd3 Rxd3 20.Kg2 e5 is slightly better for Black.
18...Qxc3 19.Kg2?
The engines give 19.Rb1, albeit claiming Black has a winning advantage.
19...Nf4+! 0-1
If 20.gxf4, then 20...Rhg8+ 21.Kf1 Qxa1+ is curtains.
**********
CONCLUSIONS
The Elephant Gambit is a rare bird that has considerable surprise value.
White usually goes a pawn up - he almost has to if hoping for an advantage in the opening - at the cost of lagging in development, and therefore ceding the initiative.
Computers sometimes seem to revel in this type of play for White, but most humans, especially at club level, are better off with the initiative.
Many of the old masters played the Elephant Gambit, including Staunton, Bird, Paulsen, Anderssen and Lasker.
Even today it is occasionally ventured by grandmasters, and is a mainstay in the repertoire of Russian GM Pavel Skatchkov.
It would add spice to almost anyone's play against 1.e4 e5 2.Nf3.